JP4395143B2 - Piping support - Google Patents

Description

The present invention relates to a pipe support for attaching various pipes, temporary members, and other articles along a flange of a steel plate or a plate-like member similar thereto in the construction of a pipe in a building having a steel frame .

  In piping construction in a building having a steel frame, the piping is often held at a predetermined position via a piping support attached to a beam material made of steel. Patent Documents 1 and 2 disclose a pipe support for attaching to a flange of a shape steel.

  As shown in FIG. 6, the pipe support described in Patent Document 1 covers a clamp fitting 91 bent in a substantially U-shape or a lateral U-shape on one side edge of a flange F of the shape steel. The attached fastening screw 92 is fastened to sandwich one side edge portion of the flange F, and the pipe P is attached to the extension of the arm 93 connected to the clamp fitting 91.

In addition, as shown in FIG. 7, the pipe support described in Patent Document 2 has an extendable latch arm 94 whose both ends are bent in a substantially U-shape in the width direction of the flange F of the H-shaped steel, The bent portions 95 and 96 of the flange F are hooked on both side edge portions of the flange F, and one side edge portion of the flange F is clamped by fastening of a tightening screw 97 attached to one of the bent portions 96. The pipe P is suspended through a hanging metal fitting 98 connected to.
JP 2002-98266 A JP-A-10-281348

  The pipe support attached to only one side edge of the flange as described in Patent Document 1 is liable to loosen the tightening screw by receiving vibration such as an earthquake, and as a result, the attachment state to the flange There is a risk of rattling, and in some cases, the pipe support may fall off the flange.

  Since the pipe support described in Patent Document 2 is hooked on both side edges of the flange, there is an advantage that even when the tightening screw is loosened, it is difficult to fall off the flange. However, when attaching to the flange, once extend the telescopic latch arm beyond the width of the flange, hook the bent parts at both ends to the flange, and then shrink the latch arm to the appropriate length again. Need to be fixed. Therefore, workability is inferior, and it takes time to attach a large number of pipe supports. In addition, the structure is complicated by the amount required for the extension / retraction / fixing mechanism of the latch arm. In addition, the tightening state of the expansion / contraction / fixing mechanism may be loosened due to vibration or the like for a long period of time, which may cause rattling of the latch arm.

  Further, as in the pipe support described in Patent Document 1, a mechanism that clamps a flange directly by fastening a tightening screw directly to a flange of a shape steel tends to overtighten the tightening screw more than necessary. As a result, each part of the pipe support cannot withstand the tightening force of the screw, causing deformation, resulting in inconveniences such as a reduction in the contact area with the shaped steel, and as a result, it is likely to cause rattling.

  The support device of the present invention was made in view of the above circumstances, and can securely hold the flange of the shape steel, and is less likely to loosen or rattle due to vibration such as an earthquake, and can be mounted stably over a long period of time. Maintaining the state is a problem to be solved.

  The support of the present invention was developed mainly for the purpose of holding the piping in place, but the articles that can be held are not limited to the piping, and can be widely used for holding various articles such as temporary members. Since it can be used, the name of the invention is a support such as a pipe. In addition, this pipe and other support tool can be attached not only to the flange of the shape steel but also to other plate-like members having a similar shape.

The support for piping and the like according to the present invention is hooked to both side edges of a flange of a steel plate constituting a steel frame of a building or a plate-like member similar thereto , and pipes and other articles are arranged along the flange or plate-like member. To hold. The structure includes a latch arm provided with a hook-like latch portion on one end side, and a presser fitting that is attached to the other end side of the latch arm via a tightening means including a bolt member and a nut member. And an appropriate holder for holding pipes and other articles provided at the extension of the latch arm, and stiffeners projecting to the mounting side of the presser fitting on both side edges of the latch arm. While the rib is formed, the presser fitting includes a pair of side plate portions, a top plate portion connecting the upper edges of the both side plate portions, and an upper portion and a top plate portion of the both side plate portions on the side of the latching portion. A long hole into which the bolt member can be inserted, the long axis of which is formed in parallel to the side plate portion, and the bottom plate portion below the both side plate portions. the edge, a locking arm position spaced to the other side from the insertion position of the bolt member by projecting downward In a state where the contact point is formed and the tightening means is loosened, the pressing member is lifted to a position higher than the stiffening rib and rotated to latch the pressing portion on the flange or the plate-like member. When the fastening means is fastened, the presser fitting is sandwiched between the stiffening ribs of the latching arm to restrict the rotation of the presser fitting, and the presser fitting is moved to the one end side with the contact point as a fulcrum. The flange or the plate-shaped member is formed so as to be sandwiched between the pressing portion and the latching arm while being tilted only.

  That is, the present invention is configured such that the presser fitting attached to the latching arm is tilted toward one end side of the latching arm, that is, the latching portion side, and the flange or the like is firmly clamped, It is less likely to loosen or rattle due to vibration.

  The presser fitting has a pair of side plate portions, a top plate portion connecting the upper edges of the both side plate portions, and a press portion formed on the upper portion of the both side plate portions and the extension of the top plate portion. The lower edge of the part protrudes to form a contact point with the latch arm, and a long hole through which the bolt member can be inserted is formed in the top plate part with its long axis parallel to the side plate part. On the other hand, stiffening ribs projecting to the mounting side of the presser fitting are formed on both side edges of the latch arm so that both side plates of the presser fitting are sandwiched between the two stiffening ribs by fastening the fastening means. Can be formed.

  As a structure of the tightening means, a tightening bolt may be screwed to a fixing nut fixed to the latching arm, and a guide bolt is mounted on the latching arm so as not to be rotatable and swingable. A tightening nut may be screwed onto the guide bolt.

  Furthermore, the holding state of the presser foot is further increased by providing a braking means for restricting the presser foot from sliding to the other end side on the other end side of the position where the contact point of the presser foot contacts. Stabilize.

  The pipe or the like support tool of the present invention configured as described above is configured such that the presser fitting tilts inwardly from the edge of the flange of the shape steel or the plate-like member similar thereto, and the edge of the flange or the like. Since the inner position is securely pinched, it is firmly fixed to the flange or the like. As a result, loosening and rattling are less likely to occur due to vibrations such as earthquakes, and a stable mounting state can be obtained over a long period.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 4 show a pipe support 1 according to a first embodiment of the present invention. As shown in FIG. 1, the illustrated pipe support 1 is attached in the width direction of the flange F located on the lower side of the H-shaped steel and projects to the side of the flange F, so that the pipe P extends to the flange F side. It is held along the edge.

  As shown in FIG. 2, the latching arm 2 constituting the main body portion of the pipe or the like support 1 is an elongated groove-shaped member in which stiffening ribs 21 for raising rigidity are raised at both side edges. A hook-like hooking portion 22 is provided on one end side of the hooking arm 2. The latching part 22 has a leg part 22a raised from the latching arm 2 and a bent part 22b folded back from the upper end of the leg part 22a above the latching arm 2. The bent part 22b The gap with the stiffening rib 21 is formed to be slightly larger than the thickness of the flange F, and is hooked on one side edge of the flange F as shown in FIG.

  The presser fitting 3 is attached to the other end side of the latch arm 2 so as to face the latch portion 22. The presser fitting 3 is attached to the latch arm 2 via fastening means including a fastening bolt 41 inserted through the presser fitting 3 and a fixing nut 42 welded to the lower surface side of the latch arm 2. The other side edge portion of the flange F is sandwiched between the arm 2 and the stop arm 2.

  A pipe holder 5 is provided at the tip of the hook arm 2 extending to the other end. The holder 5 is a clamp-like member in which a short cylindrical member is halved and hinged, and the pipe 5 is gripped by fastening the butterfly bolt 51 and held along the flange F. However, the present invention holds not only the cylindrical pipe P as illustrated but also temporary members other than the pipe, various articles, and the like. Therefore, the form and structure of the holder 5 are not particularly limited in the present invention, and an appropriate holding mechanism corresponding to the shape of the member / article can be used. Further, the holder 5 can be provided on the opposite side of the illustrated embodiment, that is, on the extension destination on one end side of the latch arm 2.

  The main part of the present invention is the fastening action of the presser fitting 3, which will be described in detail below. As shown in FIG. 2, the presser fitting 3 has a reverse groove-shaped cross section including a pair of opposing side plate portions 31 and a top plate portion 32 that connects the upper edges of the both side plate portions 31. A pressing portion 33 is formed at the top of the side plate portion 31 and the top of the top plate portion 32 extending toward the latching portion 22, and the pressing portion 33 also has a reverse groove-shaped cross-sectional shape. An elongated hole 34 extending in parallel with the side plate portion 31 is formed in the top plate portion 32 of the presser fitting 3. A fastening bolt 41 is inserted into the elongated hole 34 from above, and a leg portion of the fastening bolt 41 is screwed into a fixing nut 42 welded to the latch arm 2. A flat washer 43 and a spring washer 44 are interposed between the head of the fastening bolt 41 and the presser fitting 3.

  The side plate portion 31 of the presser fitting 3 has a shape in which the lower edge of the other end side, that is, the opposite side to the pressing portion 33 protrudes downward, and this protruding portion is a contact point with the latch arm 2. 35. As shown in FIGS. 1 and 4, the contact point 35 is formed at a position shifted to the other end side (right side in the drawing) from the axis of the fastening bolt 41. Therefore, when the fastening bolt 41 is fastened in a state where the contact point 35 is in contact with the latching arm 2, the presser fitting 3 tilts only to the one end side (the left side in the drawing) with the contact point 35 as a fulcrum, A flange F is sandwiched between the pressing portion 33 formed at the tip and the retaining arm 2. Therefore, even if the position of the tightening bolt 41 is outside the flange F, the pressing part 33 can pinch the position inside the edge of the flange F. In the exemplary embodiment, radius processing is applied to the corner of the contact point 35 in order to stabilize the contact state between the contact point 35 and the latch arm 2.

  Usually, since the surface of a shaped steel material is subjected to rust-proof coating, a coating burr often remains on the edge of the shape steel material, which may hinder the mounting of various members. However, as described above, the pipe support 1 according to the present invention is configured so that the pressing portion 33 of the presser fitting 3 presses the inner side of the flange F instead of the edge of the flange F. Easy to stabilize the mounting state. Also, not only in shape steel, but also in wood and other plate-like members, the nearest part of the edge is generally inferior in compressive strength to the inner part and is likely to be deformed by pinching pressure, but the part closer to the inner side than the edge is sandwiched. This is advantageous because such inconvenience can be avoided.

  Furthermore, since the pipe support 1 according to the present invention can dispose the fastening bolt 41 on the outside of the flange F as described above, the fastening part 22 provided on one end side of the latching arm 2 is tightened. The distance from the attached bolt 41 can be made wider than the width of the flange F. This greatly contributes to the efficiency of attachment work to the flange F. That is, as shown in FIG. 3, with the tightening bolt 41 loosened, the latching portion 22 is latched to one side edge of the flange F, and the presser fitting 3 is moved to a position higher than the stiffening rib 21. By lifting and rotating, the presser fitting 3 can be easily hooked to the other side edge of the flange F. When the fastening bolt 41 is fastened with the direction of the presser fitting 3 facing the latching portion 22, the presser fixture 3 is sandwiched between the stiffening ribs 21 formed on both side edges of the latching arm 2 and rotated. It becomes impossible and rattling is prevented. If such a configuration is adopted, a mechanism for expanding and contracting the retaining arm 94 at the time of attachment and further fixing as in the case of the pipe support described in Patent Document 2 (FIG. 7) is unnecessary. The structure can be simplified and bolts and nuts can be tightened in one place.

  FIG. 4 shows a braking means for restricting sliding of the presser fitting 3 at a fixed position. The presser fitting 3 that is tilted to the left side in the figure by fastening the fastening bolt 41 tends to shift away from the flange F by the reaction force acting between the washer 43 and the top plate part 32, that is, to the right side in the figure. Therefore, in the illustrated embodiment, the protruding portion (contact point 35) of the side plate portion 31 abuts on one end of the pipe holder 5 attached to the latch arm 2, and thereby the movement of the presser fitting 3 is performed at a predetermined position. It is configured to stop. By providing such braking means, the clamped state of the flange F by the presser fitting 3 is further stabilized.

  FIG. 5 shows a fastening means of the presser fitting 3 according to the second embodiment of the present invention. In the illustrated pipe support 1, the structures of the latch arm 2 and the presser fitting 3 are the same as those in the first embodiment.

  The tightening means according to the illustrated embodiment includes a guide bolt 45 and a tightening nut 46 screwed into the guide bolt 45. The guide bolt 45 is inserted into the free hole 23 formed in the latch arm 2 and the long hole 34 of the presser fitting 3. In the vicinity of the lower end of the guide bolt 45, a pin 47 for retaining and rotating is projected in the front-rear direction in the figure, and this pin 47 engages with a stopper 48 provided on the lower surface of the latch arm 2. ing. As a result, the rotation of the guide bolt 45 around the axis is restricted, and the upper portion of the guide bolt 45 is held so that it can swing in the direction of the arrow shown in the figure. By attaching the presser fitting 3 to the guide bolt 45 attached in this way and fastening the tightening nut 46 from the upper side, the presser fitting 3 can always be tilted with respect to the top plate portion 32 no matter what angle it tilts. An orthogonal fastening force can be applied. Thereby, the clamping pressure state of the flange F becomes more stable.

  The pipe and other support tool of the present invention holds the pipe and other appropriate members and articles in the vicinity of the plate-like member by hooking it on both side edges of the plate-like member having an appropriate width in addition to the shape steel flange. It can be used widely for various purposes.

It is sectional drawing which shows the attachment state of support tools, such as piping, concerning the 1st Example of this invention. It is a disassembled perspective view of the said piping etc. support tools. It is explanatory drawing which shows the attachment method to the flange of the said piping etc. support tools. It is explanatory drawing which expands and shows the inclination state of a clamp. It is a fragmentary sectional view which shows the fastening means of support tools, such as piping, which concerns on 2nd Example of this invention. It is a side view of the conventional piping support tool described in patent documents 1. It is a side view of the conventional piping support described in patent document 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Piping support 2 Latching arm 21 Stiffening rib 22 Latching part 3 Presser fitting 31 Side plate part 32 Top plate part 33 Pressing part 34 Long hole 35 Contact point 41 Tightening bolt (bolt member)
42 Fixing nut (nut member)
45 Guide bolt (bolt member)
46 Tightening nut (nut member)
5 Holder F Flange P Piping

Claims (4)

It is a pipe support such as a pipe that is hung on both side edges of a steel flange or similar plate-like member constituting a steel frame of a building, and holds pipes and other articles along the flange or plate-like member. And
A hook arm provided with a hook-like hook on one end side;
A presser fitting that is attached to the other end side of the latch arm via a fastening means including a bolt member and a nut member;
Provided with an appropriate holding tool for holding pipes and other articles provided at an extension of the hook arm;
While stiffening ribs projecting to the mounting side of the presser fitting are formed on both side edges of the latch arm,
The presser fitting is formed by extending a pair of side plate portions, a top plate portion connecting the upper edges of the both side plate portions, and an upper portion of the both side plate portions and the top plate portion toward the latching portion side. And a long hole through which the bolt member can be inserted is formed in the top plate portion with its long axis parallel to the side plate portion . The position separated from the insertion position to the other end side is projected downward to form a contact point with the latch arm,
In the state where the tightening means is loosened, the pressing portion can be hooked to the flange or the plate-like member by lifting and rotating the presser fitting to a position higher than the stiffening rib,
When the fastening means is fastened, the presser fitting is sandwiched between both stiffening ribs of the latching arm to restrict the rotation of the presser fixture, and the presser fixture tilts only to the one end side with the contact point as a fulcrum. On the other hand, a pipe or the like supporter formed so as to sandwich the flange or the plate-like member between the pressing portion and the latching arm. 2. The pipe support according to claim 1 , wherein the tightening means is formed so that a tightening bolt is screwed into a fixing nut fixed to the latch arm. 2. The fastening means according to claim 1 , wherein the guide bolt is formed such that the guide bolt is attached to the latch arm so as not to be rotatable and swingable, and a fastening nut is screwed onto the guide bolt. The support for piping as described. In latching arm, the other end position the contact point of the pressing fixture abuts claim 1, pressure foot, characterized in that the braking means for restraining the slide in the other end is provided Supporting equipment for piping as described in 1.

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