JP5854657B2 - Pipe support bracket - Google Patents

Description

  The present invention relates to a pipe support support bracket for supporting a pipe support (support work) used when constructing a concrete formwork, and more particularly to a pipe support support bracket with improved loadability and workability.

  In constructing a concrete frame, the formwork is supported by a pipe support, and the support and chain are pushed and pulled to adjust the construction. At that time, the support plate of the pipe support and one side of the chain are supported and engaged with the upper part of the mold, respectively, and the base plate of the pipe support and the other side of the chain are supported and engaged with the metal fittings fixed to the upper surface of the concrete slab. .

  And as a metal fitting fixed to this slab upper surface, for example, an L-shaped metal fitting (for example, refer to patent documents 1) which bent one end side of a steel plate upwards, and both sides of a steel plate are bent up, respectively. In addition, there is a bracket with a U-shaped cross section (see, for example, Patent Document 2). The present applicant has also filed an application in which both side edges of a steel plate are bent upward (see, for example, Patent Document 3).

Japanese Utility Model Publication No. 06-016609 Design Registration No. 1292960 JP 2010-112146 A

  However, the L-shaped pipe support support bracket described in Patent Document 1 is configured to receive the base plate of the pipe support at the bent portion bent upward, but the bent portion is formed from the formwork. Since it is bent so as to oppose the direction of the load, there is a possibility that the bent position is deformed from the base point. Actually, in order to prevent the deformation, the thickness of the steel plate is increased to increase the rigidity. However, this increases the cost and increases the weight, which causes a problem of poor workability.

  In addition, as for this metal fitting, there exists what increased the rigidity by forming the rib in the bending position, without making plate | board thickness thick. However, it takes time to process the ribs, and in order to completely suppress the above-described deformation, it is necessary to increase the height and width of the ribs. Accordingly, the weight and cost increase accordingly.

  On the other hand, the pipe support support fittings having a U-shaped cross section described in Patent Documents 2 and 3 are configured to receive the base plate of the pipe support at the side edges bent upward, respectively. Such deformation does not occur. Therefore, the workability is good because it is lighter than the metal fitting of Patent Document 1 without increasing the thickness of the steel plate.

  However, since both side edges of the steel plate are bent at right angles toward the upper side, a plurality of pipe support support brackets cannot be stacked one above the other, and even if they are stacked, they are bulky when packed or transported. It will be stretched. Furthermore, when preparing for construction work such as catering work, a plurality of objects cannot be carried at one time, and there is a problem that work efficiency is poor.

  In addition, this bracket is configured to support the base plate of the pipe support in a point contact state at the corners on both side edges, and to receive a load from the mold, so that the outer peripheral surface of the waist tube constituting the pipe support When the base plate is supported on the inner side of the position, the pipe support may be staggered from side to side. Therefore, in order to fix the pipe support stably, it is preferable to support the base plate on the outside from the position of the outer peripheral surface of the waist tube, but inevitably if the width between the side edges is widened The width of the metal fitting increases, resulting in an increase in weight and an increase in cost.

  Furthermore, a through-hole into which a member that connects the pipe supports is usually inserted is formed in the center of the base plate of the pipe support. Therefore, even when the corner portion of one side edge portion is located in the through hole, there is a possibility that a part of the other corner is in contact with the bottom surface of the base plate, that is, a one-sided state. Therefore, it takes time and effort to make the pipe support stable, and there is room for further improvement in workability.

  Therefore, the present invention provides a pipe support support bracket that has good stackability and transportability when stacked in the vertical direction, is lightweight, has good workability, and can reduce manufacturing costs. With the goal.

In order to achieve the above object, a pipe support supporting metal fitting according to a first aspect of the present invention is configured so that a bottom plate portion fixed to the upper surface of a concrete slab and at least a part of both side edges in the short direction of the bottom plate portion face each other. And a pair of bent side surface portions that are supported in a state of being in contact with the bottom surface of the base plate of the pipe support. The curved side surface portion is formed such that the distance between the curved side surface portions increases as the distance from the bottom plate portion increases. In the formed through hole, the distance is not less than the distance to the inner peripheral edge opposite to the side end and not more than the width of the base plate .
Thereby, the height at the time of stacking a plurality of pipe support support fittings in the up-and-down direction can be made small.
Moreover, the distance between the side edge tips is equal to or greater than the distance from the one side end to the inner peripheral edge opposite to the side end in the through hole formed in the center with respect to the center line of the base plate, And since it is less than the width of the base plate, each side edge tip part is in contact with the bottom surface of the base plate, or when one side edge tip part is located in the through hole, the other side edge tip part Since it is in a positional relationship deviating from the base plate, it is possible to surely avoid the pipe support base plate from being in a single contact state, and to improve the workability.

In the pipe support support metal fitting of the present invention, the distance between the pair of opposed bent side surface portions is formed so as to increase as the distance from the bottom plate portion increases. It is possible to improve loadability, transportability, and work efficiency. Further, the pipe support can be fixed in a stable state without increasing the width of the bottom plate portion. Furthermore, since it is not necessary to increase the width of the bottom plate portion for stable support, the manufacturing cost can be reduced and the weight of the entire metal fitting can be reduced, so that the workability is improved.
Moreover, the distance between the side edge tips is equal to or greater than the distance from the one side end to the inner peripheral edge opposite to the side end in the through hole formed in the center with respect to the center line of the base plate, And since it is less than the width of the base plate, each side edge tip part is in contact with the bottom surface of the base plate, or when one side edge tip part is located in the through hole, the other side edge tip part Since it is in a positional relationship deviating from the base plate, it is possible to surely avoid the pipe support base plate from being in a piece-by-piece state, and in this respect also the workability can be improved.

It is a figure which shows an example of the pipe support support metal fitting of the reference example 1 . It is a perspective view which shows an example of the pipe support support metal fitting of the reference example 1 . It is a figure which shows the usage example of a pipe support support metal fitting . It is a figure which shows the state which piled up several pipe support support metal fittings . It is a figure which shows the characteristic of the pipe support support metal fitting of the reference example 2 . It is a figure which shows the characteristic of the pipe support support metal fitting of embodiment which concerns on this invention .

Next, an embodiment of a pipe support support fitting according to the present invention and reference examples 1 and 2 will be described. First, reference examples 1 and 2 will be described.

Reference Example 1
1A to 1C are a plan view, a front view, and a right side view, respectively, of a pipe support support fitting 1 of Reference Example 1. FIG. FIG. 2 is a perspective view of the pipe support support fitting 1.

  As shown in FIGS. 1A to 1C and FIG. 2, the pipe support support fitting 1 supports a base plate 21 and a chain 3 of a pipe support 2 described later (see FIG. 3). It has a bottom plate part 11, bent side parts 12 a and 12 b, and a chain hook part 13.

  The bottom plate portion 11 is a portion fixed to the concrete slab, and is provided with a large-diameter anchor hole 11a and a small-diameter nail hole 11b. It is sufficient that at least one of the anchor hole 11a and the nail hole 11b is provided, and the position and the number thereof are also arbitrary.

  The pair of bent side surface portions 12a and 12b are formed such that, on one end portion side in the longitudinal direction of the bottom plate portion 11, a part of both side edges in the short side direction is bent upward and opposed to each other. And it forms in the shape of an inverted letter C so that it becomes wide as the distance between these bent side parts 12a and 12b leaves | separates from the baseplate part 11, ie, it goes upwards in FIG.1 (c). That is, as shown in the figure, the bending angles α of the bent side surface portions 12a and 12b with respect to the bottom plate portion 11 are each less than 90 degrees.

  The chain hooking portion 13 is formed by bending the other end portion side in the longitudinal direction of the bottom plate portion 11 toward one end portion side, and a chain 3 or a turnbuckle 31 (see FIG. 3) described later is formed at the center portion. .) Is provided. As shown in FIG. 1B, the bending angle β of the chain hooking portion 13 with respect to the bottom plate portion 11 is determined by the deformation of the chain hooking portion 13 itself due to the tensile force of the chain 3 or the like, or a plurality of pipes. In consideration of overlapping the support support metal fitting 1 in the vertical direction, it is desirable that the angle is less than 90 degrees.

  Next, the usage example of the pipe support support metal fitting 1 shown in FIG. 1 is demonstrated.

  FIGS. 3A and 3B are an overall view and a main part enlarged perspective view showing a usage state of the pipe support support fitting 1 shown in FIG.

  3 (a) and 3 (b) show that a formwork 6 for constructing a concrete wall 5 on a concrete slab (floor surface) 4 includes a pipe support 2, a chain 3, The state supported by the turnbuckle 31 is shown.

  The pipe support support bracket 1 that supports the pipe support 2 and the like includes, for example, a bolt, a nut, and the like by aligning the anchor hole 11a of the bottom plate portion 11 with the position of the anchor body 7 embedded in advance at a predetermined position on the concrete slab 4 It is fixed by tightening with.

  The pipe support 2 includes a base plate 21 that is in contact with the pipe support support 1, a waist tube 22 to which the base plate 21 is joined, an insertion tube 23 that is inserted into the waist tube 22 so as to freely advance and retract, and an insertion tube 23. It is comprised with the receiving plate 24 joined to the edge part of this, and contact | abutted to the formwork 6. FIG. A pressing force can be applied to the mold 6 in an inclined state by changing the length of the insertion tube 23 with respect to the lumbar tube 22 with a support pin, an adjusting screw, or the like (not shown).

  For example, the upper end side of the chain 3 is connected to a horizontal flap member 61 provided on the mold 6, while the lower end side is connected to the chain hooking portion 13 of the pipe support support 1 via the turnbuckle 31. . Therefore, a tensile force can be applied to the mold 6 by rotating the turnbuckle 31. The chain 3 is not only hooked on the hooking hole 13a via the turnbuckle 31, but may be constructed by being wound directly around the hooking hole 13a.

  And as shown to Fig.3 (a), (b), the baseplate 21 will be supported in the state which the bottom face contact | abutted to each side edge front-end | tip part of bending side part 12a, 12b.

  4 (a) and 4 (b) are a front view and a right side view showing a state in which five pipe support support fittings 1 shown in FIG. 1 are stacked.

  The pipe support support 1 is formed so as to become wider as the pair of bent side surface portions 12a and 12b move away from the bottom plate portion 11, that is, upward in FIG. Thereby, when a plurality are stacked in the vertical direction, the bent side surface portions 12a and 12b are partially overlapped, so that the height in the vertical direction can be reduced.

Therefore, according to the pipe support support bracket 1 of Reference Example 1 , a plurality of pieces can be stacked in the vertical direction, so that the height when stacked can be reduced, and the loadability and transportability are improved. Is done. Furthermore, work efficiency when preparing for construction is also improved.

  Further, in this pipe support support bracket 1, the bent side surface portions 12a, 12b are formed so as to become wider as they are separated from the bottom plate portion 11, so that the bent side surface portions 12a, 12b are respectively bent vertically. The base plate 21 of the pipe support 2 can be supported at a wide interval, and the pipe support 2 can be fixed in a stable state. Furthermore, since it is not necessary to increase the width of the bottom plate part 11 for stable support of the pipe support 2, the manufacturing cost can be reduced and the weight of the entire metal fitting can be reduced, so that the workability is improved.

  Further, in this pipe support support bracket 1, since the bottom plate portion 11, the bent side surface portions 12a and 12b and the chain hooking portion 13 are all formed by bending a single steel plate, the manufacture and structure are simple. In this respect, the manufacturing cost can be reduced.

Reference Example 2
Next, the features of the pipe support support fitting 1 ′ of Reference Example 2 will be described.

5A and 5B are a bottom view of the base plate 21 below the pipe support 2 and a side view of the pipe support support fitting 1 ′ of Reference Example 2 .

  As shown in FIG. 5A, a through hole 21 a for inserting a member for connecting the pipe supports 2 to each other is formed in the center of the base plate 21 at the lower part of the pipe support 2. And the inner diameter and outer diameter (shown with a broken line in the figure) of the waist tube 22 joined on the same axis are not less than the diameter of the through hole 21a. Here, the outer diameter of the waist tube 22 is L1.

As shown in FIG. 5 (b), the pipe support support fitting 1 'has a distance H1 between the side edge tip portions of the bent side surface portions 12a' and 12b 'so that the outside of the waist tube 22 of the pipe support 2 is outside. It is characterized by being formed with a diameter L1 or more and within a width L0 of the base plate 21. In addition, about other structures, such as chain hook part 13 ', it is the same as that of the pipe support support metal fitting 1 mentioned above.

  Therefore, in this pipe support support fitting 1 ′, if the center of the waist tube 22 and the center between the side edge tips of the bent side surface portions 12a ′ and 12b ′ are made to coincide with each other, the bent side surface portions 12a ′ and 12b. Since the tip end portions of each side edge are positioned outside the waist tube 22, the base plate 21 of the pipe support 2 can be supported in a stable state without increasing the width of the bottom plate portion 11 ′. It becomes possible. Furthermore, since it is not necessary to increase the width of the bottom plate portion 11 ′ for stable support of the pipe support 2, not only the manufacturing cost can be reduced, but also the weight of the entire metal fitting can be reduced, so that workability is improved.

Embodiment .
Next, the features of the pipe support support fitting 1 ″ according to the embodiment of the present invention will be described.

FIGS. 6A and 6B are a bottom view of the base plate 21 below the pipe support 2 and a side view of the pipe support support fitting 1 ″ according to the embodiment of the present invention .

  As shown in FIG. 6A, with respect to the center line of the base plate 21, the distance from one side edge (left side in the figure) to the inner peripheral edge of the through hole 21a opposite to the side edge is L2. To do.

As shown in FIG. 6B, the pipe support support fitting 1 ″ has a distance H2 between the side edge tip portions of the bent side surface portions 12a ″ and 12b ″ of L2 or more, and the base plate 21. The other structure is the same as that of the pipe support support brackets 1 and 1 ′ of the reference examples 1 and 2 described above.

  Here, as shown in FIG. 6A, a through hole 21 a is formed in the center of the base plate 21. And at the time of construction of a formwork as shown in FIG. 3, an operator performs installation work while adjusting the length of the insertion tube 23 of the pipe support 2 in a standing state. The bottom surface side of the base plate 21 cannot be visually confirmed. That is, the contact state between the side edge tips of the bent side surface portions 12a ″ and 12b ″ and the base plate 21 cannot be seen.

  Therefore, when the distance H2 between the side edge tip portions of the bent side surface portions 12a "and 12b" is smaller than L2, the operator can use both of the side edge tip portions of the bent side surface portions 12a "and 12b" of the base plate 21. Even if it is determined that they are in contact with the bottom surfaces, there is a possibility that one of the side edge tips is actually located in the through hole 21a and is in a one-sided state. For this reason, the operator always looks into the bottom surface of the base plate 21 and confirms whether or not it is in a piece-by-piece state, so the workability is poor.

  On the other hand, the pipe support support bracket 1 ″ has a distance H2 between the side edge tip portions of the bent side surface portions 12a ″ and 12b ″ that is greater than or equal to L2, so that the bent side surface portions 12a ″ and 12b ″ Both side edge tip portions are in contact with the bottom surface of the base plate 21, and either one of the side edge tip portions is not located in the through hole 21a. When the edge tip portion is positioned in the through hole 21a, the other side edge tip portion does not come into contact with the bottom surface and is in a positional relationship that comes off the base plate 21.

Therefore, according to the pipe support support bracket 1 ″ of the embodiment according to the present invention, it is possible to reliably avoid the base plate 21 of the pipe support 2 from being in a piece-by-piece state. It is possible to support the base plate 21 on both side edge tip portions of the bent side surface portions 12a "and 12b" from the upper side without looking into the bottom side and confirming the workability. In addition, as with the pipe support support fitting 1 ′ of Reference Example 2 , each side edge tip portion of the bent side surface portions 12a ″ and 12b ″ is positioned outside the waist tube 22, The pipe support 2 can be supported in a stable state without increasing the width of the bottom plate portion 11 ″. Furthermore, the manufacturing cost can be reduced, and the weight of the entire metal fitting is reduced, so that the workability is improved.

In the above description, the chain latching portion 13 and the latching hole 13a are formed in a portion extending from the bottom plate portion 11, but the latching structure, shape, and position are not particularly limited. For example, as in Patent Document 2, both side edge portions are bent and raised on the other end portion side in the longitudinal direction of the bottom plate portion 11, and a pin spanned between the both side edge portions may be used as the chain hooking portion. . It is also possible to provide a chain attachment member as in Patent Document 1. In the case of the former, in consideration of loadability and transportability, both side edges are folded up in an inverted C shape such as the bent side surface portions 12a ", 12b" of this embodiment , and are raised. Better.

1, 1 ', 1 "Pipe support support bracket 11, 11', 11" Bottom plate part 12a, 12b, 12a ', 12b', 12a ", 12b" Bending side part 13, 13 ', 13 "Chain latching part 2 Pipe support 21 Base plate 3 Chain 4 Concrete slab 5 Concrete wall 6 Formwork 7 Anchor body

Claims (1)

Bend the bottom plate part to be fixed to the top surface of the concrete slab and at least a part of both side edges in the short direction of the bottom plate part so that they face each other. A pipe support support bracket having a pair of bent side surfaces each supported in a contact state,
The pair of bent side surface portions are formed such that the distance between the pair of bent side surface portions increases as the distance from the bottom plate portion increases .
The distance between the side edge tip portions is equal to or greater than the distance from the one side end to the inner peripheral edge on the opposite side to the side end in the through hole formed in the center with respect to the center line of the base plate, and The pipe support support fitting is characterized by being not more than the width of the base plate .

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