JP3061658U - Tie lot reinforcement for duct - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the number of reinforcing members by halving the number of reinforcing members by attaching them to connecting portions of ducts, and to increase duct transfer efficiency. SOLUTION: A reinforcing support member 2 is provided between two opposing inner edge surfaces c, c of an opening inner edge surface c of a duct connecting portion b to support the duct connecting portion, and the duct connecting portion is provided at both ends of the reinforcing supporting member 2. The support receiving pieces 3 and 3 abutting on the inner surface c of the opening of the opening b are formed so as to protrude to the left and right sides, respectively. The thin plate pieces 4 and 4 projecting outward from the edge of the joint surface d of the peripheral edge of the opening and bent to the left and right sides are provided on both ends of the reinforcing support member 2 with respect to the support receiving pieces 3 and 3. While being formed toward the longitudinal direction of the reinforcing support member 2 at right angles,
The leading ends 4b, 4b of the thin plate pieces 4, 4 bent at substantially right angles to the left and right sides are freely bendable.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a tie-rod reinforcement for a duct for preventing a duct as a passage for air flow for air conditioning and ventilation from being crushed and deformed. This is related to tie-rod reinforcements for ducts, which shortens the installation process of the materials, reduces the number of reinforcements by half, and increases the duct transfer efficiency.

[0002]

[Prior art]

 Generally, ducts are provided as air passages for air conditioning and ventilation in rooms such as buildings. Ducts are easily deformed by crushing because the steel plate forming them has a smaller thickness than the opening cross section. Therefore, in order to prevent this, a tie-lot reinforcement is attached to the duct to prevent the duct from being crushed and deformed.

[0003] Conventional tie-lot reinforcements are mounted in the height direction of the duct, near the connection portions at both ends of the opening of each duct, and tie-lot reinforcements are formed on the upper plate and the lower plate of the duct. Both ends are penetrated through the mounting hole, and nuts are screwed into the penetrated ends and fixed. The installation work of these tie-lot reinforcements is performed at the factory.

[0004]

[Problems to be solved by the invention]

 However, as described above, in order to attach the conventional tie lot reinforcing material, it is necessary to form mounting holes for attaching the tie lot reinforcing material in the upper plate and the lower plate of the duct, respectively. Work was needed.

[0005] As described above, the conventional tie rod reinforcing material is attached near the connection portion at both ends of the opening of each duct, and when each duct is connected, the tie rod reinforcement is attached to both sides of the connection portion. Reinforcements were located, and the mounting process was generally increased, and the number of reinforcements used was large.

[0006] Further, since the tie-lot reinforcing material is attached at the factory, the tie-lot reinforcing material is already attached to the connection portions at both ends of the opening of the duct at the time of transport. As a result, it was not possible to pack other parts into the hollow duct during transportation. As a result, parts could not be transported efficiently.

[0007] In view of the above problems, the present invention has been made in order to solve the problems. The purpose of the present invention is to attach a reinforcing member by attaching the ducts to a connection portion between the ducts. It is an object of the present invention to provide a tie-rod reinforcing material for ducts that can shorten the process, reduce the number of members of the reinforcing material by half, and increase the duct transfer efficiency.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a reinforcing support member which is attached and supported between two opposing inner edge surfaces of an opening inner edge surface of a duct connecting portion, and the duct connecting portion is provided at both ends of the reinforcing supporting member. The support receiving pieces that contact the inner edge of the opening of the duct are formed so as to protrude to the left and right sides, respectively. Thin sheet pieces protruding outward from the edge and bent to the left and right sides are formed at both ends of the reinforcing support member in the longitudinal direction of the reinforcing support member substantially perpendicular to the support receiving piece, The thin plate piece is bent at substantially right angles to the left and right sides, and the distal end of the thin plate piece can be bent. Here, in a preferred embodiment, notches are preferably formed on both width sides on the leading end side of the thin plate piece.

[0009]

The present invention having the above-described structure operates as follows. That is, tie-lot reinforcement is attached to the duct connection of one of the ducts, and after the duct is attached, the ducts are connected and connected at the duct connection, and they protrude outside from the edge of the joint surface of the duct connection and are exposed. The front end of the thin strip on both ends of the tie-lot reinforcement is bent to the back side of the joint surface to complete the installation of the tie-lot reinforcement.

[0010] In the tie lot reinforcing material attached to the duct connection portion, the support receiving pieces at both ends of the reinforcing support member constituting the tie lot reinforcing material abut on both opposing inner edge surfaces of the opening inner edge surface of the duct connection portion. In this way, the reinforcing member of the tie rod reinforcing member acts against the force acting in a direction that crushes and deforms the duct, and acts to maintain the shape of the duct.

[0011]

[Embodiment of the invention]

 Hereinafter, the present invention will be described more specifically based on embodiments of the present invention described in the drawings. Here, FIG. 1 (A) is a front view of the tie lot reinforcement, (B) is a side view of the tie lot reinforcement, FIG. 2 is a perspective view of an end of the tie lot reinforcement, and FIG. 3 is an end view of the tie lot reinforcement. FIG. 4 (A) is a cross-sectional view at the time of attaching the tie-lot reinforcing material, FIG. 4 (A) is a cross-sectional view after attaching the tie-lot reinforcing material, and FIG. A perspective view, (B) is a perspective view after attaching a tie lot reinforcing material.

In FIG. 1, a tie rod reinforcing member 1 is a reinforcing member for preventing the duct a from being crushed and deformed, and opposing inner edge surfaces of an opening inner edge surface c of a duct connection portion b connecting the ducts a. Since it can be mounted between c and c, there is no need to form a mounting hole for mounting a reinforcing material on the duct a as in the past, and it has a feature that it is not necessary to perform a laborious work of drilling the mounting hole. I have.

The tie rod reinforcing member 1 includes a reinforcing support member 2 that is attached and supported between opposing inner edge surfaces c and c of the opening inner edge surface c of the duct connection portion b, and both of the reinforcing support members 2. The reinforcing support member 2 includes a support piece 3 formed at both ends thereof at right and left sides, and a thin plate piece 4 formed at both ends of the reinforcing support member 2 at right angles to the support piece 3.

The reinforcing support member 2 is formed of, for example, a hollow cylindrical body in the shape of a pipe, and its material is, for example, aluminum. Since the compressive force acts on the support receiving pieces 3 and 3 at both ends of the reinforcing support member 2, the reinforcing support member 2 has a shape that does not easily buckle due to the compressive force, for example, has a cylindrical shape.

The reinforcing support member 2 has a structure in which support pieces 3, 3 formed at both ends of the reinforcing support member 2 are in contact with and support the opposed inner edge surfaces c, c of the opening inner edge surface c of the duct connection portion b. It has become. For this reason, the length of the reinforcing support member 2 in which the support receiving pieces 3 and 3 are formed at both ends is equal to the length between the opposed inner edge surfaces c and c of the opening inner edge surface c of the duct connection portion b. It is formed as follows.

The support receiving pieces 3 and 3 are formed at both ends of the reinforcing support member 2 so as to protrude to the left and right sides. The support receiving pieces 3 and 3 are portions that directly contact the opposing inner edge surfaces c and c of the opening inner edge surface c of the duct connection portion b, and the contact surface 3a is formed as a flat surface. The contact surface 3 a of the support receiving piece 3 is formed in a direction perpendicular to the axial direction of the reinforcing support member 2. Each support piece 3 has a contact surface 3a that abuts on the inner edge surface c, both width sides of which are bent at right angles to the end side surface side of the reinforcing support member 2, and a contact surface 3a that abuts the inner edge surface c. The rigidity is increased and it is difficult to deform.

The thin plate pieces 4, 4 are formed at right angles to the contact surfaces 3 a, 3 a of the support receiving pieces 3, 3 formed at both ends of the reinforcing support member 2, respectively. It extends in the direction. That is, the thin plate pieces 4, 4 are extended in the axial direction of the reinforcing support member 2 with the back surfaces overlapping each other from the center of the support receiving pieces 3, 3 projecting to the left and right sides.

In the embodiment of the present invention, the thin plate piece 4 and the support receiving piece 3 are made of the same member, and the extended surface of the contact surface 3a of the support receiving piece 3 is bent at a right angle to be bent. The thin portion 4 is a thin plate. Then, the bent portion of the two support pieces 3 bent at right angles, that is, the back faces of the thin piece pieces 4 are overlapped to form the thin piece piece 4 and the support piece 3, and these are formed. It is attached to both ends of the reinforcing support member 2. The thin plate piece 4 and the support receiving piece 3 are formed of a thin flat metal plate, for example.

The vertical portion sides 4a, 4a where the back surfaces of the two thin plate pieces 4, 4 are overlapped are portions that are sandwiched by the joint surface d of the opening edge of the duct connection portion b, and extend therefrom. The sides 4b, 4b projecting outward from the edge of the joint surface d of the flange surface formed on the periphery of the opening of the duct connection portion b are bent at right angles in opposite directions. I have. That is, the thin plate piece 4 is bent at a right angle at the tip of the vertical part side 4a to become the front part side 4b. The bent front sides 4b, 4b are in a horizontal state. Each of the front ends 4b, 4b is parallel to the support receiving pieces 3, 3 with a predetermined vertical interval. The distance between the front side 4b and the support receiving piece 3 is equal to the width of the joint surface d of the duct connection part b, and the connection between the front side 4b, the vertical side 4a and the support receiving piece 3 is made. This is the interval where d enters.

V-shaped notches 4c are formed at both width edges of the intermediate portion of the front side 4b of the thin plate piece 4 so as to be easily bent, and the front side 4b is centered on the notch 4c. The front end of the is easily bent. The length from the base end of the front end 4b bent at a right angle from the front end of the vertical side 4a to the notch 4c is approximately the same as the thickness of the edge of the joint surface d on the flange surface of the duct connection part b. It is.

When the ducts a are connected to each other, the thin plate piece 4 whose front end side 4b is freely bendable is overlapped with the vertical side 4a by the joining surface d of the flange surface formed on the periphery of the opening of the duct connection part b. , 4a are pinched from both sides and held. When the ducts a are connected to each other, the leading ends 4b, 4b bent in opposite directions at right angles from the tips of the vertical portions 4a, 4a respectively extend from the periphery of the joint surface d of the flange surface of the duct connecting portion b. It is designed to protrude.

The front ends 4a, 4a of the thin plate pieces 4, 4 projecting from the peripheral edge of the joint surface d of the flange surface are bent in opposite directions to each other, and the front ends of the front ends 4a, 4a. Is bent from the notch 4c, and is bent and fixed from the bent portion to the back surface side of the edge of the joint surface d of the pair of adjacent flange surfaces. In this way, the tie lot reinforcing material 1 is fixed in a state of being sandwiched between the connecting portions b of the ducts a.

Next, a method of attaching the tie lot reinforcing material based on the configuration of the embodiment of the present invention will be described below. That is, before connecting the ducts a to each other at the duct connection portion b, the tie lot reinforcing material 1 is attached to the duct connection portion b of one of the ducts a. Attachment of the tie lot reinforcing material 1 is performed by connecting the contact surfaces 3a of the support receiving pieces 3 at both ends of the reinforcing support member 2 constituting the tie lot reinforcing material 1 with the opposing inner edge surfaces c of the opening inner edge surface c of the duct a. c, and the lower surface of the front side 4b of the thin plate piece 4 is brought into contact with the periphery of the joint surface d of the flange surface of the duct connecting portion b.

The length of the reinforcing support member 2 having the support receiving pieces 3 and 3 formed at both ends is equal to the length between the opposing inner edge surfaces c and c of the opening inner edge surface c of the duct connection portion b. Therefore, the tie rod reinforcing member 1 is placed in a state where the support receiving pieces 3, 3 at both ends of the reinforcing support member 2 are in contact with the opposed inner edge surfaces c, c of the opening inner edge surface c. Can be mounted.

At this time, the vertical portion sides 4 a, 4 a of the thin plate pieces 44, 4 provided at both ends of the tie lot reinforcing material 1 are connected to the joining surfaces of the flange surfaces formed on the periphery of the opening of the duct connection portion b. d, and the front sides 4b, 4b of the thin plate pieces 4, 4 bent in the opposite direction protrude outward from the periphery of the joint surface d on the flange surface.

Then, after the tie lot reinforcing material 1 is attached to the duct connection part b of one of the ducts a, the ducts a are connected to each other at the duct connection part b and connected by bolts. When the ducts a are connected to each other at the duct connection portions b, the vertical portions 4a, 4a of the thin plate pieces 4, 4 of the tie lot reinforcing material 1 are connected to the flange surfaces formed on the opening peripheral edges of the front and rear duct connection portions b. The front side 4b of the thin plate piece 4, 4 bent in the opposite direction protrudes from the peripheral edge of the bonding surface d and is exposed to the outside. .

The leading ends 4b, 4b of the thin plate piece 4 exposed to the outside and bent in the opposite direction are centered on notches 4c, 4c formed in both widths of the leading sides 4b, 4b. Then, the flange end is bent from the peripheral edge of the joining surface d to the back side thereof, and the attachment of the tie lot reinforcing material 1 is completed.

With such an attachment method, the tie lot reinforcing material 1 can be easily attached. The attached tie rod reinforcement 1 resists a force acting in a direction that crushes and deforms the duct a, and strives to maintain the shape of the duct a. In addition, this mounting does not require a mounting hole for mounting a tie rod reinforcement as in the past.

It should be noted that the present invention is not limited to the above-described embodiment of the present invention, and it is needless to say that various modifications can be made without departing from the spirit of the present invention.

[0030]

[Effect of the invention]

 As is clear from the above description, according to the tie lot reinforcing material for the duct according to the present invention, it is not necessary to form mounting holes for mounting the tie lot reinforcing material on the upper plate and the lower plate of the duct, and the installation is troublesome. Since the hole drilling operation can be completely eliminated, the number of working steps can be reduced, and the operation can be shortened.

[0031] Since a tie lot reinforcing material is attached to the connection between the ducts to reinforce the ducts on both sides at the same time, the installation work can be halved compared to the conventional one, and the work can be shortened. be able to. Moreover, the number of members of the tie lot reinforcing material can be halved.

When transporting the duct, since the tie lot reinforcing material is not attached to the connection portions at both ends of the opening of the duct, another member can be packed inside the hollow of the duct and transported at the same time. It has an extremely practical and useful effect, for example, it can increase the

Further, when notches are formed on both width sides on the front side of the thin plate piece as in claim 2, the front end side on the front side can be easily centered on the notch. Can be folded into

[Brief description of the drawings]

FIG. 1A is a front view of a tie lot reinforcing material showing an embodiment of the present invention. (B) is a side view of a tie lot reinforcing material showing an embodiment of the present invention.

FIG. 2 is a perspective view of an end of a tie lot reinforcing material showing an embodiment of the present invention.

FIG. 3 is a perspective view of an end of a tie lot reinforcing material after bending, showing an embodiment of the present invention.

FIG. 4A is a cross-sectional view of the embodiment of the present invention when a tie lot reinforcing material is attached. (B) is a sectional view of the embodiment of the present invention after the tie lot reinforcing material is attached.

FIG. 5A is a perspective view showing the embodiment of the present invention when a tie lot reinforcing material is attached. (B) is a perspective view after the attachment of the tie lot reinforcing material which shows embodiment of this invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tie lot reinforcing material 2 Reinforcement support member 3 Support receiving piece 3a Contact surface 4 Thin plate piece 4a Vertical part 4b Front part 4c Notch a Duct b Duct connection part c Opening inner edge d Joint surface

Claims (2)

[Utility model registration claims] 1. A reinforcing support member which is mounted between two opposing inner edge surfaces of an opening inner edge surface of a duct connecting portion and is supported, and is provided at both ends of the reinforcing supporting member with the opening inner edge surface of the duct connecting portion. The supporting support pieces that are in contact with each other are formed so as to protrude to the left and right sides, and are sandwiched between the joining surfaces of the opening periphery of the duct connection portion, and the leading end side protrudes outside from the edge of the joining surface of the opening periphery of the duct connection portion. The thin plate pieces bent to the left and right sides are formed at both ends of the reinforcing support member in the longitudinal direction of the reinforcing support member substantially perpendicular to the support receiving piece, and substantially at the left and right sides. A tie lot reinforcing material for a duct, characterized in that a front end side of a thin plate piece bent at a right angle can be freely bent. 2. The tie lot reinforcing material for a duct according to claim 1, wherein notches are formed on both width sides on the front end side of the thin plate piece.