JP2019124377A - Deformable duct - Google Patents

Abstract

To provide a deformable duct which can deform a shaft center.SOLUTION: A deformable duct 1 is constituted by a plurality of round ducts 2-5 being connected with each other, and a shaft center C is deformable. In a state where the entire shaft center C extends substantially in a straight line manner, end surfaces of adjacent round ducts 2-5 are formed obliquely with respect to the entire shaft center C, and the round ducts 2-5 adjacent to each other on the end surfaces are connected rotatably with each other, and by rotating the adjacent round ducts 2-5, the entire shaft center C deforms.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a round duct, and more particularly to a deformable duct in which the axial center is deformable.

  Conventionally, in the round duct, a straight duct (straight pipe) whose axial center extends straight, an L-shaped duct (elbow) whose axial center is substantially L-shaped, or an S-shaped duct (S) whose axial center is substantially S-shaped (See, for example, Non-Patent Document 1), and used a round duct suitable for a use application, an installation place, and the like. At this time, the dimensions of the L-shaped duct and the S-shaped duct have been designed and manufactured in advance according to the hole position connecting the round duct and the duct position on the opposite side.

"Standard Duct Text" General Association Japan National Association of Duct Industrial Groups Edited and published, July 2013, p. 45-p. 46

  By the way, in an actual construction site, construction may not be performed as designed. For example, a hole position connecting a round duct or a duct position on the opposite side may not be constructed as designed. In such a case, even if the L-shaped duct or S-shaped duct manufactured as designed is carried to a construction site, it can not be installed. For this reason, it is necessary to redesign and manufacture the L-shaped duct, the S-shaped duct, etc., which requires a large amount of cost and time.

  An object of the present invention is to provide a deformable duct in which the axial center can be deformed.

  In order to achieve the above object, the invention according to claim 1 is a deformable duct in which a plurality of round ducts are connected and configured to be deformable, and the entire axial center extends in a substantially straight line. In the state, the end face of the adjacent round duct is formed obliquely to the entire axial center, the adjacent round ducts are rotatably connected to each other at the end face, and the adjacent round duct is rotated. And the entire axial center is deformed.

  The invention according to claim 2 is the deformable duct according to claim 1, wherein an edge of the adjacent one of the round ducts protrudes outward from an outer peripheral surface of the duct and has an inverted U-shaped first haze. A second I-shaped gouging portion rising outward from the outer circumferential surface of the other adjacent round duct, and a second gouging portion formed in the first gouged portion. The third embodiment is characterized in that the adjacent round ducts are rotatably connected to each other by the insertion of the second part.

  The invention according to claim 3 is the deformable duct according to claim 1 or 2, wherein the cylindrical end is inserted into the free end of the round duct located at the end so as to be movable back and forth. It is characterized in that it comprises a collar duct provided with an outwardly projecting flange at the part.

  The invention according to claim 4 is characterized in that in the deformable duct according to claim 3, a stopper for preventing the collar duct from coming off the free end of the round duct is provided.

  The invention according to claim 5 is characterized in that, in the deformable duct according to claims 1 to 4, the entire axial center becomes substantially L-shaped by rotating the adjacent round ducts. Do.

  The invention according to claim 6 is characterized in that, in the deformable duct according to claims 1 to 4, the entire axial center becomes substantially S-shaped by rotating the adjacent round ducts. Do.

  According to the first aspect of the present invention, the entire axial center can be deformed by rotating the adjacent round ducts. Therefore, for example, even when the hole position for connecting the deformable duct and the position of the opposite duct are not installed as designed, the entire axial center of the deformable duct is deformed to position the end (connector). It becomes possible to connect properly to the hole position etc. which were constructed by changing. As a result, it is possible to reduce the cost, labor, and time required for redesign and reproduction. Further, the entire axial center can be deformed easily and quickly simply by rotating the adjacent round ducts, and moreover, it is safe because no tool is required.

  According to the second aspect of the present invention, the adjacent round ducts are rotatable with a simple configuration in which only the I-shaped second go-through portion is inserted into the inverted U-like first go-to portion. Therefore, it becomes possible to rotate the adjacent round duct smoothly and easily. And since it is a simple structure, while being able to reduce a manufacturing cost, it can be used stably for a long time.

  According to the third aspect of the invention, since the color duct which can be moved back and forth with respect to the round duct located at the end portion is provided, for example, the hole position connecting the deformable duct and the duct position on the opposite side are as designed. Even if it is not installed, it is possible to connect to the installed hole position etc. by advancing and retracting the color duct. In addition, since the collar duct is provided with a flange, it can be easily connected to the hole position and so on.

  According to the invention as set forth in claim 4, since the color duct is provided with the stopper for preventing the color duct from coming off the round duct, the color duct does not come off the round duct during transportation or installation work, etc. Etc. can be done easily and safely.

  According to the invention as set forth in claim 5, by rotating the adjacent round ducts, the entire axial center becomes substantially L-shaped, so that, for example, the hole position to which this deformable duct is connected and the opposite duct Even if it is necessary to make the deformable duct substantially L-shaped without the position being designed as designed, it can be dealt with easily and quickly. Moreover, since it is not necessary to manufacture two ducts, the duct whose axis is extended in a substantially straight line and the duct whose axis is substantially L-shaped, it is possible to reduce the manufacturing cost, inventory cost and the like.

  According to the invention of claim 6, by rotating the adjacent round ducts, the entire axial center becomes substantially S-shaped, so, for example, the hole position to which this deformable duct is connected and the opposite duct Even if it is necessary to make the deformable duct substantially S-shaped without being installed as designed, it can be dealt with easily and quickly. Moreover, since it is not necessary to manufacture two ducts, a duct whose axis is extended in a substantially straight line and a duct whose axis is approximately S-shaped, it is possible to reduce the manufacturing cost, inventory cost and the like.

They are the front view (a) which shows the state which the whole axial center of the deformable duct which concerns on embodiment of this invention extended in substantially linear form, and a front view (b) which shows the state of a substantially L shape. It is a front view which shows the state in which the axial center of the whole of the deformable duct of FIG. 1 is substantially S-shaped. It is a front view which shows the 1st round duct of the deformable duct of FIG. It is a front view which shows the 2nd round duct of the deformable duct of FIG. It is a front view which shows the color | collar duct of the deformable duct of FIG. It is sectional drawing which shows the connection structure of the adjacent round duct of the deformable duct of FIG. It is sectional drawing which shows the stopper structure of the color | collar duct of FIG.

  Hereinafter, the present invention will be described based on the illustrated embodiments.

  1 to 7 show an embodiment of the present invention, and FIG. 1 is a front view showing a deformable duct 1 according to this embodiment, and (a) shows that the entire axial center C is substantially straight. (B) shows a state in which the entire axial center C is substantially L-shaped. The deformable duct 1 is configured by connecting a plurality of round ducts 2 to 5 and is a duct that can deform the axial center C, and mainly includes the round ducts 2 to 5 and the collar ducts 6 and 7.

  In the round ducts 2 to 5, as shown in FIG. 1A, the end faces of the adjacent round ducts 2 to 5 with respect to the entire axial center C in a state in which the entire axial center C extends in a substantially straight line. The round ducts 2 to 5 which are formed obliquely and which are adjacent to each other at this end face are rotatably connected to each other. That is, as shown in FIG. 3, in the first round duct 2, the end face on one side (first color duct 6 side) is perpendicular to the axial center (entire axial center C) of the first duct 2. The other end face is formed obliquely with respect to the axis of the first duct 2.

  Further, as shown in FIG. 4, in the second round duct 3, the end face on one side (first round duct 2 side) is oblique to the axial center (entire axial center C) of the second duct 3. The inclination angle of this end surface is set to be the same as the inclination angle of the other end surface of the first round duct 2. The other end face is also formed obliquely with respect to the axial center of the second duct 3, and the inclination angle of this end face is set to be the same as and opposite to the inclination angle of one end face. That is, the second round duct 3 has a substantially isosceles trapezoidal shape when viewed from the front.

  Similarly, the third round duct 4 has the same shape as that of the second round duct 3, and in a state in which the entire axial center C extends in a substantially straight line, the second round duct 3 is substantially upside down, etc. It has a trapezoidal shape. Further, the fourth round duct 5 has the same shape as the first round duct 2 and has a shape in which the first round duct 2 is turned upside down in a state in which the entire axial center C extends in a substantially straight line. ing.

  At the oblique end faces of such round ducts 2 to 5, the adjacent round ducts 2 to 5 are rotatably connected to each other by the first goby part H1 and the second goby part H2. That is, as shown in FIG. 6, an inverted U-shaped first goby portion H1 is formed at the end edge of the adjacent one of the round ducts 2 to 5 so as to protrude outward from the outer peripheral surface of the round ducts 2 to 5 At the end edges of the other adjacent round ducts 2 to 5, an I-shaped second goby portion H2 is formed, which rises outward from the outer peripheral surface of the round ducts 2 to 5.

  Then, the second round portion H2 is inserted into the first vertical portion H1, so that the adjacent round ducts 2 to 5 are rotatably connected to each other. Here, in the first haze part H1 and the second haze part H2, the second haze part H2 slides smoothly in the first haze part H1 and the connection play becomes as small as possible. A gap of is set.

  Such first goby parts H1 and second goby parts H2 are alternately provided on the oblique end faces of the round ducts 2-5. Specifically, in this embodiment, as shown in FIG. 3, a second go-through portion H2 is formed on the other end face of the first round duct 2. Further, as shown in FIG. 4, a first go-through portion H1 is formed on one end face of the second round duct 3, and a second go-through portion H2 is formed on the other end face.

  Similarly, a first haze portion H1 is formed on an end face of one of the third round ducts 4 (the second round duct 3 side), and a second haze portion H2 is formed on the other end face. In addition, a first haze portion H1 is formed on an end face of one of the fourth round ducts 5 (third round duct 4).

  By rotating the adjacent round ducts 2 to 5 connected in this manner, the entire axial center C is deformed. For example, as shown in FIG. 1 (a), the second round duct 3, the third round duct 4 and the fourth round duct 5 are each 180 from the state in which the entire axial center C extends in a substantially straight line. By rotation, as shown in FIG. 1 (b), the entire axial center C becomes substantially L-shaped. Further, as shown in FIG. 2, by rotating the first round duct 2 and the fourth round duct 5 by 180 ° from the state in which the entire axial center C extends in a substantially straight line, as shown in FIG. C is approximately S-shaped. It can also be deformed into other shapes.

  In other words, the inclination angles of the end faces of the round ducts 2 to 5 and the number of round ducts are set so that they can be deformed into such a shape. Therefore, in this embodiment, although the case where it is constituted by four round ducts 2 to 5 is described, it is constituted by more round ducts or less round ducts according to the shape, size, etc. to be deformed. May be

  The color ducts 6, 7 are cylindrically inserted into the free ends of the round ducts 2, 5 positioned at the end, and are provided with flanges 61, 71 projecting outward at the end on the opposite side. Color. Here, the first color duct 6 is attached to the first round duct 2 and the second color duct 7 is attached to the fourth round duct 5. The first color duct 6 and the second color duct Only the first color duct 6 will be described below, since it has an equivalent construction to the duct 7.

  The first collar duct 6 is cylindrical as shown in FIG. 5, and its outer diameter is inserted into and fitted in the first round duct 2 and is set to slide in the axial direction . As a result, the first color duct 6 moves in and out of the first round duct 2 so that the entire length of the deformable duct 1 changes. Here, as described above, the entire deformable duct 1 has a predetermined length in a state in which the entire axial center C extends in a substantially straight line, in a substantially L shape, or in a substantially S shape. Thus, the length of the first color duct 6 is set.

  Moreover, the ring-shaped flange 61 which protruded in the substantially perpendicular | vertical direction outside is formed in the edge part of the non-insertion side (anti- 1st round duct 2 side). The flange 61 is formed to be able to be connected to a hole to which the deformable duct 1 is connected or a duct on the opposite side.

  Further, at the other end of the first collar duct 6, a locking portion 62 constituting a stopper is formed. The locking portion 62 is formed in a ring shape that protrudes substantially perpendicularly to the outside of the cylinder.

  On the other hand, on the free end side of the first round duct 2, as shown in FIG. 7, a locked portion 21 constituting a stopper is formed. The engaged portion 21 is formed in a concave shape so as to protrude to the inside of the first round duct 2, and may be formed over the entire circumference of the first round duct 2, or may be formed only in part It is also good. In addition, after inserting the 1st color | collar duct 6 in the 1st round duct 2, the to-be-locked part 21 is formed.

  Then, the locking portion 62 locks to the locked portion 21, whereby the collar duct 6 is prevented from coming off the free end of the first round duct 2. Here, as described above, the position of the locked portion 21 is set such that the entire length of the deformable duct 1 is secured to a predetermined length.

  According to the deformable duct 1 having such a configuration, the deformable duct 1 is deformed as described above and the color ducts 6 and 7 are advanced and retracted according to the hole position to be connected and the duct position on the opposite side. Adjust the length of the deformable duct 1. Then, the flanges 61 and 71 of the color ducts 6 and 7 are connected to the other duct or the like, and between the round ducts 2 to 5 (a gap S1 between the first haze portion H1 and the second haze portion H2 shown in FIG. And the round ducts 2, 5 and the collar ducts 6, 7 (the gap S2 between the free end of the first round duct 2 and the collar duct 6 shown in FIG. 7) is sealed and airtightly treated.

  As described above, according to the deformable duct 1, by rotating the adjacent round ducts 2 to 5, the entire axial center C, that is, the shape can be deformed. Therefore, for example, even when the hole position connecting the deformable duct 1 and the duct position on the opposite side are not constructed as designed, the entire axial center C of the deformable duct 1 is deformed to end (color duct By changing the positions of (6, 7), it is possible to properly connect to the installed hole position or the like. As a result, it is possible to reduce the cost, labor, and time required for redesign and reproduction. Moreover, only by rotating the adjacent round ducts 2 to 5, the entire axial center C can be deformed easily and quickly, and moreover, it is safe because no tool is required.

  Also, the simple configuration is such that only the I-shaped second go H2 is inserted into the inverted U-shaped first go H1, and the adjacent round ducts 2 to 5 are rotatable, so that the smooth And it becomes possible to rotate adjacent round ducts 2 to 5 easily. And since it is a simple structure, while being able to reduce a manufacturing cost, it can be used stably for a long time.

  On the other hand, since the color ducts 6 and 7 which can move back and forth to the round ducts 2 and 5 located at the end of the deformable duct 1 are provided, for example, the hole position connecting the deformable duct 1 and the opposite duct Even when the position is not designed as designed, it is possible to connect to the installed hole position or the like by advancing and retracting the color ducts 6 and 7. Moreover, since the flanges 61 and 71 are provided in the color | collar ducts 6 and 7, it becomes possible to connect easily to the hole position etc. which were constructed.

  Furthermore, since the locking portions 62 and the locked portions 21 are provided to prevent the color ducts 6 and 7 from coming off the round ducts 2 and 5, the color ducts 6 and 7 are round ducts 2 during transportation or installation work, for example. Thus, it is possible to easily and safely carry out the transportation, the installation, and the like without leaving the system 5.

  Further, by rotating the adjacent round ducts 2 to 5, the entire axial center C becomes substantially L-shaped, for example, the hole position connecting the deformable duct 1 and the duct position on the opposite side are as designed Even if it is necessary to make the deformable duct 1 substantially L-shaped without being installed on the side, it is possible to cope with it easily and quickly. Furthermore, since it is not necessary to manufacture two ducts in which the axial center C extends in a substantially straight line and the duct whose axial center C is substantially L-shaped, it is possible to reduce manufacturing costs, inventory costs, etc. .

  Similarly, by rotating the adjacent round ducts 2 to 5, the entire axial center C becomes substantially S-shaped, and for example, the hole position connecting the deformable duct 1 and the duct position on the opposite side are designed Even if it is necessary to make the deformable duct 1 substantially S-shaped without being installed in the street, it is possible to cope with it easily and quickly. Furthermore, since it is not necessary to manufacture two ducts in which the axial center C extends in a substantially straight line and the duct whose axial center is substantially S-shaped, it is possible to reduce manufacturing costs, inventory costs and the like.

  The embodiment of the present invention has been described above, but the specific configuration is not limited to the above embodiment, and even if there is a change in design or the like within the scope of the present invention, Included in the invention. For example, in the above embodiment, both end faces of the second round duct 3 and the third round duct 4 are formed obliquely, but only one end face is inclined according to the shape to be deformed, etc. You may form. In addition, a round duct whose both end faces are formed perpendicularly to the axis may be included.

1 Deformable duct 2 to 5 round duct 21 Locked part (stopper)
6, 7 color duct 61 flange 62 locking part (stopper)
71 Flange C entire axial center H1 1st Haze section H2 2nd Haze section

Claims (6)

A plurality of round ducts are connected to form a deformable duct whose axis can be deformed,
With the entire axis extending in a substantially straight line, the end face of the adjacent round duct is formed obliquely to the entire axis, and the adjacent round ducts are rotatably connected to each other at the end face ,
By rotating the adjacent round duct, the entire axial center is deformed,
Deformable ducts characterized by An edge of the adjacent one of the round ducts is provided with an inverted U-shaped first gouging portion that protrudes outward from the outer circumferential surface of the duct;
An end portion of the other adjacent round duct is provided with an I-shaped second go up portion rising outward from the outer circumferential surface of the duct;
The adjacent round ducts are rotatably connected to each other by inserting the second goby part into the first goby part.
The deformable duct according to claim 1, characterized in that: And a collar duct inserted in the free end of the round duct located at the end so as to be movable back and forth, and provided with an outwardly projecting flange at the end on the opposite side of the insertion.
The deformable duct according to any one of claims 1 or 2, characterized in that: A stopper for preventing the collar duct from coming off the free end of the round duct,
The deformable duct according to claim 3, characterized in that: By rotating the adjacent round ducts, the entire axial center becomes substantially L-shaped,
The deformable duct according to any one of claims 1 to 4, characterized in that. By rotating the adjacent round ducts, the entire axial center becomes substantially S-shaped,
The deformable duct according to any one of claims 1 to 4, characterized in that.

Images