JP5775643B1 - Pipe rack - Google Patents

Abstract

Provided is a pipe rack capable of suppressing the work load related to carrying-in, assembly, storage, etc. even when used when the number of pipe bundling operations is large. SOLUTION: A rod-like lower support 10 and a first side projecting from a lower support 10 at one end of the lower support 10 so as to be detachable and projecting in a columnar shape above the lower support 10. The lower support 10 is detachably provided at the other end of the lower support 10 so as to face the support 20a and the first side support 20a, and protrudes in a column shape above the lower support 10 A second side support 20b, and the lower support 10, the first side support 20a, and the second side support 20b constitute a substantially U-shaped frame. A plurality of pipes are accumulated inside the frame. [Selection] Figure 1

Description

  The present invention relates to a pipe rack.

  Conventionally, a pipe rack for accumulating and bundling a plurality of single pipe pipes frequently used in a construction site or the like is known. In many cases, the pipe rack is a substantially U-shaped frame having an opening on the upper side, and a predetermined number of pipes such as 50 or 100 are stacked inside the frame. A plurality of pipe racks are usually arranged such as two or three at intervals along the longitudinal direction of the pipes to be collected, and the pipes are bridged between the plurality of arranged pipe racks. If there are as many as 1000 or 2000 pipes to be brought into the work site and the number of operations for collecting and bundling the pipes increases, the number of pipe racks to be used also increases.

  Since the substantially U-shaped pipe rack has a vertical width and a horizontal width constituting the frame at the same time, a rectangular region is formed, so when the pipe rack is not used for an accumulation operation, for example, When storing on the ground, a large number of rectangular parallelepiped spaces are occupied by the pipe racks by stacking a plurality of pipe racks. When a large space is generated for storing the pipe rack, the space that can be used at the work site is narrowed and the movement of the worker is also interfered. That is, the problem that a pipe rack becomes bulky arises.

  Here, as a technique that can reduce the bulkiness of the pipe rack when not in use, Patent Literature 1 discloses a pipe binding device (two right and left support frames are supported in a undulating manner with respect to the lower support frame ( Pipe racks) are disclosed. The pipe bundling apparatus is configured such that when not in use, the height of the entire pipe bundling apparatus is lowered by folding the two left and right support frames inward along the lower support frame. In use, the two left and right support frames are raised from the lower support frame and fixed to the lower support.

Japanese Utility Model Publication No. 58-121874

  However, in the case of the technique disclosed in Patent Document 1, when the bundling operation for accumulating and bundling a plurality of pipes is not limited to one time but is repeated a plurality of times, the number of bundling operations corresponding to the number of bundling operations is conventionally performed. A pipe rack is required. Therefore, even if the bulkiness can be reduced to some extent by folding the left and right support frames, the problem that the work load related to carrying in, assembling, and storing a plurality of pipe racks as a whole is not solved.

  The present invention has been made in view of the above, and it is an object of the present invention to provide a pipe rack that can suppress the work load related to carrying-in, assembly, storage, and the like even when used when the number of pipe bundling operations is large. And

In order to solve the above-described problem, a pipe rack according to the present invention includes a rod-like lower support, a first inclined portion that intersects one end of the lower support and an upper surface of the lower support at an acute angle. On the inner side, the outer side on the opposite side with an acute angle, and the outer side on the outer side protrude in a columnar shape above the lower support, and on the lower side of the first inclined portion on the inner side, The first support has a first notch that opens to the other end of the lower support, and the first notch is fitted to a part of the lower support from the side so as to be detachable from the lower support. A first side support provided on the first side support, and the other end of the lower support facing the first side support, and tilted in a direction opposite to the first inclined portion, The upper surface has a second inclined portion that intersects at an acute angle on the inside, the acute angle opposite side is on the outside, the outer side on the opposite side protrudes in a columnar shape above the lower support , and the inner side Second tilt A second notch that opens to one end of the lower support, on the lower side of the lower part, and the second notch is fitted to a part of the lower support from the side. It includes a second side support member provided detachably with the support, and the opposite side surface of the lower support and the first lateral supports sides and opposite sides of the second lateral support A substantially U-shaped frame is formed by the sides, and the concave portion defined by the first inclined portion, the second inclined portion, and the upper surface of the lower support is formed in a plurality of stages. The gist is to accumulate a plurality of stacked pipes.

  Therefore, according to the pipe rack according to the present invention, it is possible to provide a pipe rack that can suppress the work load related to carrying-in, assembly, storage, and the like even when it is used when the number of pipe bundling operations is large.

FIG. 1A is a perspective view illustrating a state in which the lower support and the left and right side supports are separated from each other in the pipe rack according to the embodiment of the present invention, and FIG. It is a perspective view explaining the state which the support body and the left-right side support body integrated. 2A is a front view of the lower support of the pipe rack according to the embodiment of the present invention, FIG. 2B is a plan view of the lower support, and FIG. It is a left view of a lower side support body. FIG. 3A is a front view of the first side support and the second side support of the pipe rack according to the embodiment of the present invention, and FIG. 3B is the first side view. It is a top view of a support body and a 2nd side support body, and FIG.3 (c) is a left view of a 1st side support body. It is a front view which illustrates typically the usage method of the pipe rack which concerns on embodiment of this invention (the 1). It is a front view which illustrates typically the usage method of the pipe rack which concerns on embodiment of this invention (the 2). It is a front view which illustrates typically the usage method of the pipe rack which concerns on embodiment of this invention (the 3). It is a front view which illustrates typically the usage method of the pipe rack which concerns on embodiment of this invention (the 4). It is a front view which illustrates typically the usage method of the pipe rack which concerns on embodiment of this invention (the 5). It is a front view which illustrates typically the usage method of the pipe rack which concerns on embodiment of this invention (the 6). It is a front view which illustrates typically the usage method of the pipe rack which concerns on embodiment of this invention (the 7). It is a perspective view which illustrates typically the use condition of the pipe rack which concerns on other embodiment (1st modification) of this invention. FIG. 12A is a perspective view for explaining a state in which the lower support body and the left and right side support bodies of the pipe rack according to another embodiment (second modification) of the present invention are separated. 12 (b) is a perspective view illustrating a state in which the lower support and the left and right side supports are integrated.

  Embodiments of the present invention will be described below. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and it should be noted that the relationship between the thickness and the planar dimensions, the ratio of the thickness of each device and each member, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings. Also, the directions of “left and right” and “up and down” in the following description are merely definitions for convenience of description, and do not limit the technical idea of the present invention. Thus, for example, if the paper is rotated 90 degrees, “left and right” and “up and down” are read interchangeably, and if the paper is rotated 180 degrees, “left” becomes “right” and “right” becomes “left”. Of course.

  As shown in FIG. 1, a pipe rack 1a according to an embodiment of the present invention includes a bar-like lower support 10 on which a plurality of pipes Pa1 to Pk7 shown in FIG. The lower support 10 is detachably provided at one end of the support 10, and is opposed to the first side support 20a projecting in a columnar shape above the lower support 10 and the first side support 20a. The second support 10 is provided at the other end of the lower support 10 so as to be detachable from the lower support 10 and protrudes in a columnar shape above the lower support 10. The pipe racks 1a are respectively arranged at both ends in the longitudinal direction of the plurality of pipes Pa1 to Pk7, and as shown in FIG. 1 (b), the lower support 10, the first side support 20a, and the second support A plurality of pipes Pa <b> 1 to Pk <b> 7 are stacked inside a substantially U-shaped frame having an opening on the upper side, which is formed by the side support body 20 b.

(Structure of lower support)
As shown in FIG. 1A and FIG. 2, the lower support 10 includes a main body 11 and a pair of pipe stoppers 12 a and 12 b provided on the upper surface of the main body 11 so as to be separated from each other. The main body 11 is formed in a substantially rectangular parallelepiped shape and is made of a metal material such as iron. As shown in FIG. 5, the main body 11 is disposed so that the longitudinal direction of the main body 11 is orthogonal to the longitudinal direction of the pipe. As shown in FIG. 2 (b), two side surfaces of the end of one of the main body 11 in the longitudinal direction (left side in FIG. 2 (b)) are formed so as to protrude in the horizontal direction. Columnar protrusions 11a1 and 11a2 are provided. In addition, two columnar protrusions 11b1 and 11b2 formed so as to protrude in the horizontal direction are provided on both side surfaces of the other end (right side in FIG. 2B) of the main body 11 in the longitudinal direction. Is provided.

  The two protrusions 11a1 and 11a2 at one end and the two protrusions 11b1 and 11b2 at the other end are arranged at equal distances from both ends of the main body 11, respectively. It is provided symmetrically with respect to the center in the longitudinal direction. The four protrusions 11a1, 11a2, 11b1, and 11b2 are all rod-shaped members made of a metal material such as iron, and are fixed to the main body 11 by welding or the like.

  One pipe stopper 12a and the other pipe stopper 12b forming the pair of pipe stoppers 12a and 12b are formed so as to protrude upward as shown in FIG. They are arranged at distance positions, and are provided symmetrically with respect to the longitudinal center of the main body 11. As shown in FIGS. 2 (a) and 2 (b), one pipe stopper 12a is aligned with the two protrusions 11a1 and 11a2 at one end in the longitudinal direction of the main body 11 in the vertical direction. Is provided. The other pipe stopper 12b is provided at a position aligned with the two protrusions 11b1 and 11b2 at the other end in the longitudinal direction of the main body 11 in the vertical direction.

  As shown in FIG. 2 (a), one pipe stopper 12a includes a first main body plate 12a1 and a second main body plate 12a2 each having a right triangle shape when the pipe stopper is viewed from the front, and a connecting rod 12a3. For example, after being integrally connected by welding or the like, the main body 11 is fixed and integrated by welding or the like. The first main body plate 12a1, the second main body plate 12a2, and the connecting rod 12a3 are all made of a metal member such as iron.

  As shown in FIG. 2A, the first main body plate 12a1 of one pipe stopper 12a is provided so that the hypotenuse of a right triangle faces the other pipe stopper 12b. An angle θ is formed between the hypotenuse of the right triangle and the side that is fixed to the main body 11. The angle between the side of the right triangle that is fixed to the main body 11 and the other pipe stopper 12b is about 90 degrees. The second main body plate 12a2 has the same structure as the first main body plate 12a1, and is configured symmetrically with respect to the axial direction of the main body 11 on the upper surface of the main body 11, as shown in FIG. Has been.

  The other pipe stopper 12b has the same structure as the one pipe stopper 12a. The first body plate 12a1 of the other pipe stopper 12b corresponds to the first body plate 12a1 of the one pipe stopper 12a, and the second body plate 12a2 of the other pipe stopper 12b is the first body plate 12a1 of the one pipe stopper 12a. This corresponds to the second main body plate 12a2. The connecting rod 12a3 of the other pipe stopper 12b corresponds to the connecting rod 12a3 of the one pipe stopper 12a.

  Of the plurality of pipes Pa1 to Pk7 accumulated on the pipe rack 1a between the pair of pipe stoppers 12a and 12b on the upper surface of the lower support 10, the first-stage pipes Pa1 to Pa7 forming the lowest stage Are juxtaposed in a direction orthogonal to the longitudinal direction of the pipe, as shown in FIG. In the pair of pipe stoppers 12a and 12b, the diagonal sides of the right triangle are arranged so as to face each other, so the width between the pair of pipe stoppers 12a and 12b (the length in the left-right direction in FIG. 2A) Increases from the lower support 10 toward the upper side.

(Structure of side support)
As shown in FIG. 3, the first side support body 20a includes a plate-like first main body plate 20a1 and second main body plate 20a2 that are formed in the same shape via three connecting rods. For example, they are integrally connected by welding or the like. The lowermost connecting rod 20a3 of the first side support body 20a has a lower surface that supports the lower side when the first side support body 20a and the lower support body 10 are integrated to form a frame. It is provided at a position where it comes into contact with the upper surface of the body 10 and hits it. In FIG. 3, for convenience of explanation, only the lowermost connecting rod 20 a 3 among the three connecting rods is provided with a reference numeral. The first main body plate 20a1, the second main body plate 20a2, and the three connecting rods are all made of a metal member such as iron.

  The first main body plate 20a1 has an outer side (on the side opposite to the second side support 20b) and an inner side (the second side support 20b side) in the longitudinal direction (vertical direction in FIG. 3A). 3), and in the upper part of the first main body plate 20a1, as shown in FIG. 3 (a), the outer side and the inner side in the longitudinal direction are respectively vertical and parallel to each other. Is formed.

  The central portion of the first main body plate 20a1 is formed wider than the upper portion of the first main body plate 20a1. The outer side in the longitudinal direction of the central part of the first main body plate 20a1 is formed by extending on the same straight line as the outer side of the upper end part, and the vertical part 22a1 is formed on the inner side. . The vertical portion 22a1 extends and bends approximately 90 degrees downward in the vertical direction after the lower end of the inner side of the upper end portion is bent and extended approximately 90 degrees in the horizontal direction toward the second side support 20b. It is formed by bending and stretching.

  The lower portion of the first main body plate 20a1 is formed wider than the central portion of the first main body plate 20a1. The outer side in the longitudinal direction of the lower part of the first main body plate 20a1 is formed by extending on the same straight line as the outer side of the central part, and an inclined part 24a1 is formed on the inner side. Due to the inclined portion 24a1, the lower part of the first main body plate 20a1 is arranged on the second side support 20b side as the width perpendicular to the longitudinal direction of the first side support 20a goes to the lower support 10 side. It is formed so as to overhang. That is, the lower side portion of the first side support body 20a and the side portion constituting the frame of the pipe rack 1a are perpendicular to the longitudinal direction of the first side support body 20a (of the lower support body 10). As the width in the longitudinal direction extends toward the lower support 10 side, it extends so as to expand toward the second side support 20b. The inclination angle of the inclined portion 24 a 1 of the first main body plate 20 a 1 is the same angle θ as the angle between the oblique side of one pipe stopper 12 a of the lower support 10 and the side fixed to the main body 11.

  A substantially U-shaped notch 26a1 is formed from the inner side to the outer side at the lower end of the first main body plate 20a1 of the first side support 20a and below the inclined part 24a1. That is, the cutout portion 26a1 of the first side support 20a is formed with an opening on the right side in FIG. 3A and a semicircular arc bottom on the left side in FIG. 3A. The The notch 26a1 of the first main body plate 20a1 is fitted with the protrusion 11a1 corresponding to the lower protrusion 11a1 of one end of the lower support 10 shown in FIG. 2B. It is provided in the position to do. The width of the notch 26a1 (the length in the vertical direction in FIG. 3A) is slightly longer than the diameter of the cylindrical circle of the protrusion. Further, the curvature of the semicircular arc at the bottom of the notch 26a1 is set to be substantially the same as or slightly larger than the curvature of the cylindrical circle of the protrusion.

  Further, the second main body plate 20a2 of the first side support 20a has the same structure as the first main body plate 20a1, and the vertical portion 22a2 of the second main body plate 20a2 is the vertical portion of the first main body plate 20a1. Corresponding to 22a1, the inclined portion 24a2 of the second main body plate 20a2 corresponds to the inclined portion 24a1 of the first main body plate 20a1. Further, the cutout portion 26a2 of the second main body plate 20a2 corresponds to the cutout portion 26a1 of the first main body plate 20a1.

  The second side support 20b has the same structure as the first side support 20a, and the end attached to the lower support 10 is opposite to the first side support 20a. Different. The first body plate 20b1 of the second side support 20b corresponds to the first body plate 20a1 of the first side support 20a, and the second body plate of the second side support 20b. 20b2 corresponds to the second main body plate 20a2 of the first side support 20a. The vertical part 22b1 at the center of the second side support 20b, the inclined part 24b1 at the lower part and the notch part 26b1 at the lower end are the vertical part 22a1 at the center of the first side support 20a, and the inclined part at the lower part. This corresponds to the portion 24a1 and the notch 26a1 at the lower end. The three connecting rods of the second side support 20b correspond to the three connecting rods of the first side support 20a, and the lowermost connecting rod 20b3 of the second side support 20b. Corresponds to the lowermost connecting rod 20a3 of the first side support 20a.

(Unification of lower support, first side support and second side support)
The first side support 20a is fitted into one end portion in the longitudinal direction of the lower support 10 from the side, and the second side support 20b is fitted in the other longitudinal direction of the lower support 10 The first side support body 20a, the second side support body 20b, and the lower side support body 10 are integrated by being fitted into the end portion from the side. Then, as shown in FIG. 2B, a frame having an opening on the upper side is formed. A region that expands upward is formed at the bottom of the frame by the inclined portion 24a1 of the first side support 20a and the inclined portion 24b1 of the second side support 20b.

  When the first side support 20a is integrated with the lower support 10 as shown in FIG. 1 (b), the first main body plate is formed at the lower end of the first side support 20a. The lower support 10 is sandwiched between the lower support 10 and a space (clearance) in the space between 20a1 and the second main body plate 20a2. At this time, the protrusion 11a1 on the first body plate 20a1 side at one end of the lower support body 10 is fitted into the notch 26a1 of the first body plate 20a1 of the first side support body 20a. Match. Further, the protrusion 11a2 on the second body plate 20a2 side at one end of the lower support 10 is fitted into the notch 26a2 of the second body plate 20a2 of the first side support 20a. Further, the lower surface of the lowermost connecting rod 20a3 of the first side support 20a abuts against and contacts the upper surface of the lower support 10.

  When the second side support 20b is integrated with the lower support 10 in the same manner as the first side support 20a, the first main body at the other end of the lower support 10 is used. The protrusion 11b1 on the plate 20b1 side fits into the notch 26b1 of the first main body plate 20b1 of the second side support 20b. Further, the protrusion 11b2 on the second body plate 20b2 side at the other end of the lower support 10 is fitted into the notch 26b2 of the second body plate 20b2 of the second side support 20b. Further, the lower surface of the lowermost connecting rod 20b3 of the second side support 20b abuts against and contacts the upper surface of the lower support 10.

  When the four protrusions 11a1 to 11b2 of the lower support 10 are fitted into the corresponding notches 26a1 to 26b2, respectively, the first side support 20a and the second side support 20b are In either case, displacement from the protrusion toward the center of the lower support 10 is prevented. That is, the four protruding portions 11a1 to 11b2 determine the mounting positions of the first side support body 20a and the second side support body 20b with respect to the lower side support body 10, and The distance between the support 20a and the second side support 20b is defined.

  By determining the attachment positions of the first side support 20a and the second side support 20b, the end surface of the inclined portion 24a1 of the first main body plate 20a1 and the second side support 20a of the first side support 20a are determined. The inclined portion 24a2 of the main body plate 20a2 and the end surface of the region where the oblique side of the first main body plate 12a1 of one pipe stopper 12a is formed and the end surface of the region where the oblique side of the second main body plate 12a2 is formed are below. They are aligned on a virtual plane inclined at an angle θ from the upper surface of the side support 10. In FIG. 1B, the end surface of the inclined portion 24b1 of the first main body plate 20b1 of the second side support 20b, the inclined portion 24b2 of the second main body plate 20b2, and the second end of the other pipe stopper 12b. The state where the end surface of the region where the oblique side of the first main body plate 12b1 is formed and the end surface of the region where the oblique side of the second main body plate 12b2 is formed are illustrated on the same plane.

  The end surface of the inclined portion of the first side support 20a and the end surface of the region where the oblique side of one pipe stopper 12a is formed are aligned on the same plane, and the end surface of the inclined portion of the second side support 20b And the end face of the region where the hypotenuse of one pipe stopper 12b is formed on the same plane, the pipes Pa1 to Pa7 juxtaposed on the upper surface of the lower support 10 are prevented from moving outward. However, the pipes Pb1 to Pk7 can be stacked further upward.

  That is, the pipes Pa1 to Pk7 juxtaposed on the upper surface of the lower support 10 are the stages to which the most load is applied when a plurality of pipes Pa1 to Pk7 are stacked on the frame of the pipe rack 1a. When the pipes Pa1 to Pa7 roll outward and push the first side support 20a and the second side support 20b outward, the second and subsequent stage pipes from below are supported by the inclined portion. Is impossible. Therefore, the pair of pipe stoppers 12a and 12b stabilize the juxtaposed configuration at the lowermost stage, prevent the lowermost pipe from moving to the outside, and the first side support body 20a and the second side support body 20b. The attachment position to the lower support 10 is held. The pipes are supported on the inclined portions of the first side support body 20a and the second side support body 20b in which the attachment positions are held, so that the pipes are juxtaposed on each stage from the bottom to the top. It becomes possible to increase the number of pipes one by one.

  When the first side support 20a and the second side support 20b are integrated with the lower support 10, the lowermost connecting rod 20a3 of the first side support 20a is shown in FIG. As shown in FIG. 2, the upper surface of the lower support 10 is brought into contact with the upper surface of the lower support 10 in a state of being strongly squeezed by the weight of the first side support 20a. Therefore, the static frictional force of the first side support body 20a is increased, and the first side support body 20a is prevented from being displaced outward on the ground and separated from the lower support body 10. That is, the first side support 20a is stationary by using its own weight and the load from the accumulated pipe and is not separated from the lower support 10, so that the weight, the area of the lower end surface in contact with the ground, The shape or the like of the lower connecting rod 20a3 is configured. Even when the first side support 20a is removable from the lower support 10, the first side support 20a is stably integrated with the lower support 10 during pipe accumulation.

  Further, the lowermost connecting rod 20b3 of the second side support 20b was also strongly squeezed onto the upper surface of the lower support 10 in the same manner as the lowermost connecting rod 20a3 of the first side support 20a. Contact in state. Similarly to the first side support body 20a, the second side support body 20b is stationary by using its own weight and a load from the accumulated pipe, and is separated from the lower support body 10 by weight. The area of the lower end surface in contact with the ground, the shape of the lowermost connecting rod 20b3, and the like are configured, and when the pipes are integrated, they are stably integrated with the lower support 10.

In addition, as shown in FIG. 4, the attachment positions of the first side support body 20a and the second side support body 20b are determined, and as shown in FIG. 4, the lower end portion of the first side support body 20a and the second side support body 20a. between the lower end portion of the support member 20b is separated at the closest distance w2 _L between the first lateral supports 20a and a second lateral support 20b. The closest distance w2 _L between the first side support 20a and the second side support 20b is equal to the minimum width w1 between the pair of pipe stoppers 12a, 12b of the lower support 10 (w1 = _w2 L).

Here, the minimum width w1 between the pair of pipe stoppers 12a and 12b is set corresponding to the following three points (α) to (γ).
(Α) Angle θ between the oblique side of the pipe stopper and the side fixed to the main body 11
(Β) Target number of pipes N in the pipe rack 1a
(Γ) Outer diameter R of pipes Pa1 to Pk7

  The value of the angle θ in (α) may be set as appropriate, but is set to 60 degrees in the embodiment of the present invention. When the angle θ is 60 degrees, the plurality of pipes Pa <b> 1 to Pk <b> 7 can be brought into a close contact state similar to a hexagonal close packed structure, and the integrity can be further improved.

For example, when the angle θ = 60 degrees and the target number of integrated pipes N = 100, as shown in FIG. 6, 100 pipes Pa1 to Pk7 are arranged in a total of 11 stages with different numbers of constituents. Consider the case where the product is stacked at The numbers juxtaposed on each stage from bottom to top are in the order of 7, 8, 9, 10, 11, 10, 9, 8, and 7. The minimum width w1 between the pair of pipe stoppers 12a and 12b is set by the following equation (1) because seven pipes are juxtaposed at the lowest stage.
w1 = R / 2 · tan (θ / 2) + 6R + R / 2 · tan (θ / 2) (1)
For example, when the outer diameter R of the pipe is about 48.6 mm, the minimum width w1 is about 320 mm from the above formula (1). In the embodiment of the present invention, a value of about 320 to 340 mm can be set as the allowable range of the minimum width w1 in consideration of manufacturing errors.

Further, the height h _L of the inclined portion 24a1 of the first side support 20a and the inclined portion 24b1 of the second side support 20b from the upper surface of the lower support 10 is also a pair of pipe stoppers 12a. , 12b, and is set corresponding to the above (α) to (γ). For example, in the case where the angle θ = 60 degrees and the target number of integrated pipes N = 100, as shown in FIG. 6, 100 pipes are stacked in a total of 11 stages with different numbers of constituents in each stage. In this case, when five stages of pipes are supported on the inclined part from the lowest stage and stacked, the height h _L of the inclined part is set by the following equation (2).
h _L = {(R / 2 · tan (θ / 4) + 4R + R / 2 · tan (θ / 2)} × sin θ
... (2)
For example, when the outer diameter R of the pipe is about 48.6 mm, the height h _L of the inclined portion is about 186 mm from the above formula (2). In the embodiment of the present invention, a value of about 190 to 200 mm can be set as an allowable range of the height h _L of the inclined portion in consideration of manufacturing errors.

The vertical portion 22b1 of the first vertical portion of the lateral supports 20a 22a1 and a second lateral support 20b, the height _{h U} from the upper surface of the lower support 10, a pair of pipe stoppers 12a, 12b Similarly to the minimum width w1 between, it is set corresponding to the above (α) to (γ). Using the distance w2 _U between the central part of the first side support 20a and the central part of the second side support 20b, a total of three stages from the bottom, the sixth stage and the seventh stage, when formed between the vertical portion of the right and left, the height h _U of the vertical portion is set by the following equation (3).
h _U = R / 2 · tan (θ / 4) + 2R · sin θ + R / 2 · tan (θ / 4)
... (3)
Then, for example, when the outer diameter R of the pipe is about 48.6 mm, the height _{h U} of the vertical portion is approximately 97mm from the above equation (3). In the embodiment of the present invention, by taking into account manufacturing tolerances, the value of about 100～120Mm, can be set as the allowable range of the height h _U of the vertical portion.

Between the central portion of the first side support body 20a and the central portion of the second side support body 20b, as shown in FIG. 5, the number of the stages stacked in the pipe rack 1a is the largest. A stage where the number of pipes are juxtaposed is located. Spacing w2 _U of the central portion of the central portion and second lateral supports 20b of the first side support member 20a, similarly to the minimum width w1 between the pair of pipes stoppers 12a, 12b, of the (alpha) Although it can be set corresponding to ~ (γ), it is automatically determined by setting the height h _L and the angle θ of the inclined portion.

Thus, the minimum width w1 between the pair of pipe stoppers 12a and 12b, the height h _L of the inclined portion, and the length h _U of the vertical portion are set corresponding to the above (α) to (γ). At the same time, by stacking a plurality of pipes inside the frame of the pipe rack 1a, an octagonal shape can be formed when the accumulated pipes are viewed from the axial direction as shown in FIG. It becomes possible.

In addition, among the 11 stages stacked when N = 100, 3 stages (11, 10 and 11 stages) located between the vertical parts, at the middle positions of all stages, by forming a stepped juxtaposing most number of pipes 2 or more stages, the length of the vertical side of the octagon corresponding to the length h _U of the vertical portion, a pair of pipe stoppers 12a, the minimum width w1 between 12b The ratio of the corresponding octagonal horizontal side length approaches 1: 1. Then, the aspect ratio of the octagon formed by all the pipes that are finally collected can be made closer to 1: 1, more closely approximate to a perfect circle, and the integrity of the pipes when bundled can be improved.

(How to use a pipe rack)
Next, a method of stacking a plurality of pipes and bundling them together using the pipe rack 1a according to the embodiment of the present invention will be described. All the pipes are 100 single pipes having the same outer diameter R. Also, the pipes in FIGS. 5 to 11 used for the description show only the outline for convenience of description. First, as shown in FIG. 5, the first side support 20a, the second side support 20b, and the lower support 10 are integrated to form a frame. Then, two integrated pipe racks 1a are juxtaposed at intervals along the longitudinal direction of the pipe.

(Formation at the bottom)
Next, on the inner side of the formed frame body, seven pipes Pa1 to Pa7 are closely arranged in parallel so as not to generate a gap between the pair of pipe stoppers 12a and 12b. That is, the seven pipes Pa1 to Pa7 are all in contact with the upper surface of the lower support 10, and the leftmost pipe Pa1 of the seven pipes Pa1 to Pa7 is connected to one pipe stopper 12a and the first pipe stopper 12a. The side support 20a simultaneously contacts the inclined portion 24a1 of the first main body plate 20a1 and the inclined portion 24a1 of the second main body plate 20a2. Of the seven pipes Pa1 to Pa7, the rightmost pipe Pa7 includes the other pipe stopper 12b, the inclined portion 24a1 of the first body plate 20a1 of the second side support 20b, and the second body plate 20a2. Similarly to the leftmost pipe Pa1, the inclined portion 24a1 is simultaneously contacted. Moreover, adjacent pipes contact and are juxtaposed between a pair of pipe stoppers 12a and 12b.

  The seven pipes Pa1 to Pa7 are supported by the pair of pipe stoppers 12a and 12b, the first side support body 20a, the second side support body 20b, and the lower side support body 10, thereby It is stably held on the inner bottom. The seven pipes Pa1 to Pa7 constitute the lowermost stage of the 100 pipes.

  The upper ends of the seven pipes Pa1 to Pa7 are all arranged at substantially the same height. A recess opened upward is formed between the first side support 20a and the leftmost pipe Pa1, and an upper side is formed between the second side support 20b and the rightmost pipe Pa7. A recessed portion opened in is formed. And a recessed part is each formed between the adjacent pipes of the seven pipes Pa1-Pa7 arranged in parallel. That is, on the left and right of each of the seven lowermost pipes Pa1 to Pa7, the first side support body 20a, the second side support body 20b, and the seven pipes Pa1 to Pa7, a total of eight pipes. Are formed.

(Formation of the second stage)
Next, eight pipes Pb1 to Pb8 are placed one by one in the eight recesses formed on the left and right of the seven pipes Pa1 to Pa7 in the lowermost stage, and the second stage from the bottom is placed. Form. The eight pipes Pb1 to Pb8 are closely aligned and juxtaposed so as not to generate a substantial gap between the pair of pipe stoppers 12a and 12b.

  As shown in FIG. 5, the eight pipes Pb1 to Pb8 are the seven pipes Pa1 to Pa7 excluding the pipes at both ends, all of the lowermost seven pipes Pa1 to Pa7 located on the lower side. Contact two at the same time. Of the eight pipes Pb1 to Pb8, the leftmost pipe Pb1 includes the leftmost pipe Pa1 of the seven lowermost pipes Pa1 to Pa7, the upper end of one pipe stopper 12a, and the first pipe stopper 12a. The side support 20a is simultaneously in contact with the inclined portion 24a1 of the first main body plate 20a1 and the inclined portion 24a1 of the second main body plate 20a2. The rightmost pipe Pb8 of the eight pipes Pb1 to Pb8 includes the rightmost pipe Pa7 of the seven lowermost pipes Pa1 to Pa7, the upper end of the other pipe stopper 12b, and the second pipe stopper 12b. The side support 20b is simultaneously in contact with the inclined portion 24a1 of the first main body plate 20a1 and the inclined portion 24a1 of the second main body plate 20a2. The eight pipes Pb1 to Pb8 in the second stage are in contact with each other between the pair of pipe stoppers 12a and 12b.

  The upper ends of the eight pipes Pb1 to Pb8 in the second stage are all arranged at substantially the same height as the seven pipes Pa1 to Pa7 in the lowermost stage. A concave portion opened upward is formed between the inclined portion 24a1 of the first side support 20a and the leftmost pipe Pb1. Further, a concave portion opened upward is formed between the inclined portion 24a1 of the second side support 20b and the rightmost end pipe Pb8. And also in the eight pipes Pb1-Pb8 juxtaposed, a recessed part is formed between adjacent pipes, respectively. That is, on the left and right of each of the eight pipes Pb1 to Pb8 in the second stage from the bottom, the first side support 20a, the second side support 20b, and the eight pipes Pb1 to Pb8, A total of nine recesses are formed.

  The eight pipes Pb1 to Pb8 are simultaneously provided to the inclined part 24a1 of the first side support 20a, the inclined part 24b1 of the second side support 20b, and the eight pipes Pb1 to Pb8 in the second stage from the bottom. By being supported, it is stably held inside the frame. At this time, the lowermost seven pipes Pa1 to Pa7 roll outward on the upper surface of the lower support 10 by the pair of pipe stoppers 12a and 12b protruding upward from the upper surface of the lower support 10. Therefore, the state in which the seven pipes Pa1 to Pa7 are arranged side by side is held tightly. Since the lowermost seven pipes Pa1 to Pa7 are closely juxtaposed, the eight concave portions formed by the seven pipes Pa1 to Pa7 can be stably held. The eight stages of pipes Pb1 to Pb8 can be stably stacked.

(Formation of the third stage)
Next, nine pipes Pc1 to Pc9 are placed one by one in the nine concave portions formed on the left and right of the eight pipes Pb1 to Pb8 in the second stage from the bottom, and the third stage from the bottom. Form a step. The nine pipes Pc1 to Pc9 are juxtaposed closely together so as not to generate a substantial gap between the first side support 20a and the second side support 20b.

  As shown in FIG. 5, the nine pipes Pc1 to Pc9 are the seven pipes Pc2 to Pc8 excluding the pipes at both ends. The two pipes are contacted at the same time. The leftmost pipe Pc1 among the nine pipes Pc1 to Pc9 is the same as the leftmost pipe Pb1 of the eight pipes Pb1 to Pb8 in the second stage and the first pipe of the first side support 20a. Simultaneously contact the inclined portion 24a1 of the main body plate 20a1 and the inclined portion 24a2 of the second main body plate 20a2. The rightmost pipe Pc9 of the nine pipes Pc1 to Pc9 is the rightmost pipe Pb8 of the eight pipes Pb1 to Pb8 in the second stage, and the first of the second side support body 20b. Simultaneously contact the inclined portion 24b1 of the main body plate 20b1 and the inclined portion 24b1 of the second main body plate 20b2. The nine pipes Pc1 to Pc9 in the third stage from the bottom contact each other between the pair of pipe stoppers 12a and 12b.

  The nine pipes Pc1 to Pc9 are simultaneously provided to the inclined part 24a1 of the first side support 20a, the inclined part 24b1 of the second side support 20b, and the eight pipes Pb1 to Pb8 in the second stage from the bottom. By being supported, it is stably held inside the frame.

  Further, the upper ends of the nine pipes Pc1 to Pc9 at the third stage from the bottom are arranged at substantially the same height as the pipes at the lowest stage and the second stage from the bottom. A concave portion opened upward is formed between the inclined portion 24a1 of the first side support 20a and the leftmost pipe Pa1. Further, a concave portion opened upward is formed between the inclined portion 24a1 of the second side support 20b and the rightmost pipe Pa7. Also, in the nine pipes Pc1 to Pc9 arranged in parallel, concave portions are formed between adjacent pipes, respectively, and the first side support is provided above the nine pipes Pc1 to Pc9 in the third stage from the bottom. A total of ten recesses are formed by the body 20a, the second side support body 20b, and the nine pipes Pc1 to Pc9.

  At this time, the first lateral support body 20a is loaded with a force pushed outward in the horizontal direction by the leftmost pipe Pc1 among the nine pipes Pc1 to Pc9. Here, depending on the lower end surface of the first side support body 20a and the ground on which the first side support body 20a is placed, the weight of the first side support body 20a and the pipe to be accumulated A frictional force is generated according to the load from. The generated frictional force cancels out the force that pushes the first side support 20a outward in the horizontal direction, and the first side support 20a and the lower support 10 do not separate during the pipe stacking operation. .

  Further, the notch 26a1 of the first side support 20a is pressed against and contacts the protrusion of the lower support 10 to generate a frictional force. The generated frictional force cancels out the force that pushes the first lateral support 20a outward in the horizontal direction, so that the first lateral support 20a and the lower support 10 are not separated from each other. The integrity of the side support 20a and the lower support 10 is improved.

  Also, the second side support 20b is maintained in the same integrity without being separated from the lower support 10 in the same manner as the first side support 20a. Then, the integrity of the first side support 20a and the second side support 20b with the lower support 10 is maintained, so that the nine pipes Pc1 to Pc9 in the third stage are connected. The juxtaposed state is maintained. The ten concave portions formed on the left and right sides of the nine pipes Pc1 to Pc9 can be stably held, and the ten pipes Pd1 to Pd10 in the fourth stage from the bottom can be stably held in the ten concave portions. It becomes possible to stack.

(Formation of the fourth and fifth stages)
Next, ten pipes Pd1 to Pd10 are placed one by one in the ten concave portions formed on the left and right of the nine pipes Pc1 to Pc9 in the third stage from the bottom, respectively. A stage is formed, and the tenth pipes Pd1 to Pd10 of the fourth stage are held in a row in the same manner as the second and third stages. Furthermore, 11 pipes Pe1 are formed in 11 recesses formed by 10 pipes Pd1 to Pd10 in the fourth stage from the bottom, the first side support body 20a, and the second side support body 20b. ~ Pe11 are placed one by one to form the fifth stage from the bottom, and the 11 pipes Pe1 to Pe11 in the fifth stage from the bottom are held in parallel. That is, the pipes are sequentially stacked so that the juxtaposed pipes increase one by one from the lowest stage to the fifth stage. 45 pipes are accumulated by the stacking operation from the lowest stage to the fifth stage.

  Here, among the eleven pipes Pe1 to Pe11 in the fifth stage from the bottom, the leftmost pipe Pe1 is connected to the vertical portion 22a1 and the inclined portion 24a1 of the first main body plate 20a1 of the first side support 20a. At the same time, the vertical portion 22a2 and the inclined portion 24a2 of the second main body plate 20a2 are simultaneously contacted. Of the eleven pipes Pe1 to Pe11 in the fifth stage from the bottom, the rightmost pipe Pe11 simultaneously contacts the vertical portion 22a1 and the inclined portion 24a1 of the first main body plate 20a1 of the second side support 20b. At the same time, the vertical portion 22a2 and the inclined portion 24a2 of the second main body plate 20a2 are simultaneously contacted.

(6th and 7th stage formation)
Next, 10 pipes Pf1 to Pf10 are placed one by one in 10 recesses formed between adjacent pipes of 11 pipes Pe1 to Pe11 in the fifth stage from the bottom. Form the sixth stage. Next, 11 pipes formed by ten pipes Pf1 to Pf10 in the sixth stage from the bottom, the vertical part 22a1 of the first side support 20a, and the vertical part 22a2 of the second side support 20b. 11 pipes Pg1 to Pg11 are placed one by one in the recess, forming the seventh stage from the bottom.

  The leftmost pipe Pg1 among the eleven pipes Pg1 to Pg11 at the seventh stage from the bottom is the first lateral side in the same manner as the leftmost pipe Pe1 at the eleventh pipes Pe1 to Pe11 at the fifth stage from the bottom. The vertical body 22a1 and the inclined portion 24a1 of the first main body plate 20a1 of the support 20a are simultaneously in contact with the vertical portion 22a2 and the inclined portion 24a2 of the second main body plate 20a2. The rightmost pipe Pg11 of the eleven pipes Pg1 to Pg11 at the seventh stage is also in contact with the vertical portion 22a1 and the inclined portion 24a1 of the first main body plate 20a1 of the second side support 20b at the same time. The vertical part 22a2 and the inclined part 24a1 of the second main body plate 20a2 are simultaneously contacted. The eleven pipes Pg1 to Pg11 at the seventh stage from the bottom also maintain the state in which the eleven pipes Pg1 to Pg11 are arranged side by side as in the fifth stage from the bottom.

(Eight-stage to eleventh-stage formation)
Next, as shown in FIG. 6, 10 pipes Ph1 to Ph10 are placed in 10 recesses formed between the adjacent 11 pipes Pg1 to Pg11 at the seventh stage from the bottom. Place them one by one to form the eighth step from the bottom. Next, nine pipes Pi1 to Pi9 are placed one by one in nine recesses formed between adjacent pipes of the ten pipes Ph1 to Ph10 in the eighth stage from the bottom. The steps are formed.

  Next, the eight pipes Pj1 to Pj8 are placed one by one in the eight recesses formed between the adjacent nine pipes Pi1 to Pi9 in the ninth stage from the bottom, and the tenth from the bottom. The seven stages Pk1 to Pk7 are formed in the seven recesses formed between the adjacent pipes of the eight pipes Pj1 to Pj8 of the tenth stage from the bottom. Place the books one at a time to form the top eleventh stage from the bottom.

  All the 100 pipes Pa1 to Pk7 are accumulated inside the frame of the pipe rack 1a by the stacking operation from the lowermost stage to the uppermost stage. As shown in FIG. 6, 100 pipes Pa <b> 1 to Pk <b> 7 have shapes that approximate a flat octagon that is slightly longer in the horizontal direction than in the vertical direction when the end surface side of the pipe is viewed from the front along the axial direction. Indicates. Further, 100 pipes Pa1 to Pk7 have a hexagonal shape with two left and right vertices formed if 12 pipes are juxtaposed on the sixth stage from the bottom. As shown in FIG. 6, the 100 pipes Pa1 to Pk7 accumulated in the pipe rack 1a are accumulated symmetrically, and are also accumulated vertically symmetrically around the sixth stage from the bottom.

(Bundling work)
Next, as shown in FIG. 7, a binding tool 30 such as a predetermined wire (wire) is wound around the outer periphery of 100 pipes Pa <b> 1 to Pk <b> 7 accumulated inside the frame of the pipe rack 1 a, and bundled into a lump. To do. Next, as shown in FIG. 8, by applying a force toward the pipe side to the upper ends of the first main body plate 20a1 and the second main body plate 20a2 of the first side support 20a, The lower end portion of the first side support 20a is rotated around the upper end of the vertical portion 22a1 to the outer side opposite to the pipe, and the outer peripheral surface of the pipe on which the first side support 20a is integrated Separate from. That is, the upper end portion of the first side support 20a to which a force is applied, with the upper end of the vertical portion 22a1 and the contact portion with the leftmost pipe Pg1 among the eleven pipes Pg1 to Pg11 at the seventh stage from the bottom as a fulcrum. The function of the scissors is performed with the power point as the point of action and the lower end of the first side support 20a as the point of action. And after releasing an inclination part from the load of a pipe, the 1st side support body 20a is moved outside, and it removes from the lower side support body 10 (refer FIG. 11).

  Similarly to the first side support 20a, a force is applied toward the pipe side to the upper ends of the first main body plate 20a1 and the second main body plate 20a2 of the second side support 20b. As a result, the lower end of the second side support 20b is rotated around the vertical portion 22a1 to the outside opposite to the pipe, and the outer periphery of the pipe on which the second side support 20b is integrated. Remove from the lower support 10 away from the surface.

  Since the 100 pipes Pa1 to Pk7 are bundled together by the bundling tool 30, as shown in FIG. 9, from the lower support 10 to the first side support 20a and the second side. Even if the support 20b is removed, the octagonal shape is maintained. The removed first side support body 20a and second side support body 20b can be reused for the work of stacking other plural pipes.

  Next, as shown in FIG. 10, for example, a lifting device 40 having a hook or the like attached to the top end of a boom of a crane (not shown) is hooked on the upper end of the binding tool 30, and 100 pipes Pa <b> 1 to Pk <b> 7 are attached. It is lifted in the bound state and moved to a predetermined position. The binding tool 30 shown in FIG. 10 is adjustable in length so that the integrity of the bundled pipes is not impaired even when hooks are hooked. The number of the binding tools 30 and the lifting devices for binding the pipes may be changed as appropriate according to the length of the pipes, the number of stacks, and the like.

  According to the pipe rack 1a according to the embodiment of the present invention, when a plurality of pipes are integrated and bundled, the first side support 20a and the second side support 20b are connected to the lower support 10. It is possible to construct a stable frame by attaching to a predetermined number of pipes and to count a predetermined number of pipes inside the frame. Further, after the pipes are bundled or not used for the accumulation operation, the first side support 20a and the second side support 20b are easily detached from the lower support 10 by using the function of the scissors. The first side support 20 a and the second side support 20 b can be arranged separately from the lower support 10. Therefore, even if it is used when the number of pipe bundling operations is large, it is possible to suppress the work load related to pipe rack loading, assembly, storage, and the like.

  Further, according to the pipe rack 1a according to the embodiment of the present invention, after the first side support body 20a and the second side support body 20b are removed from the lower side support body 10, The first side support 20a and the second side support 20b can be reused in the operation of binding the pipes. Therefore, when the number of planned bundling operations is multiple, it is necessary to prepare the number of lower supports 10 according to the number of operations, but the number of side supports is less than the number of pipe racks 1a. All you need is enough.

  For example, if the bundling operation is 10 times and a total of 20 pipe racks are required assuming that a pair of pipe racks are used for one bundling operation, 40 lower support members 10 are prepared, and the first Two side supports 20a and two second side supports 20b may be prepared. In other words, if at least one set of the state in which the first side support 20a and the second side support 20b are attached to the lower support 10 can be configured for a lump of pipes to be bound, The side support 20a and the second side support 20b are transferred to the lower support 10 for each different binding operation.

  As a result, even if the number of the first side supports 20a and the second side supports 20b is small or the number of times of the bundling work is increased, each bundling work can be performed without delay. Therefore, it is possible to greatly reduce the volume and weight of the prepared pipe rack 1a with respect to the scheduled number of times of bundling work, and even if the number of times of bundling work is large, the pipe rack can be carried in and assembled. The work burden related to storage and the like can be largely suppressed as a whole.

  In addition, the pipe rack 1a according to the embodiment of the present invention has a simple member and structure, and constitutes the first side support 20a and the second side support 20b, and these are formed on the lower support 10. Therefore, it is not necessary to use a member such as an undulating support frame or a connecting chain as shown in Patent Document 1, and it is possible to suppress the raw material cost and the processing burden when manufacturing the pipe rack, and the productivity is good.

  Further, according to the pipe rack 1a according to the embodiment of the present invention, a plurality of pipes can be formed by using the inclined portions formed on the first side support 20a and the second side support 20b. However, it can be easily accumulated and bound into an octagonal shape. If the bundled pipes are octagonal, the lower corners of the bundled pipes do not become square because they are perpendicular, as in the case of a conventional rectangular pipe rack. However, it is possible to step on the foot of a worker who moves by the side, and the operation becomes smooth. In addition, when the pipes are viewed from the axial direction, the ratio of the length and width of the bundled pipes is close to 1: 1, that is, close to a circle, so even when bundling the same number of pipes as compared to a conventional rectangular pipe rack, The horizontal width can be shortened. Therefore, when the bundled pipes are juxtaposed, for example, on the truck bed, it is possible to juxtapose more than before.

  Moreover, since the adhesiveness between the pipes is enhanced at the time of accumulation, the workability when the pipes are bundled together is good, and the integrity of the pipes after the bundling is also high. As a result, the stability of lifting the bundled pipes with a crane is increased, and the safety of the lifting work is improved.

Further, according to the pipe rack 1a according to the embodiment of the present invention, (α) the angle θ between the oblique side of the pipe stopper and the side fixed to the main body 11, and (β) the target number of integrated pipes of the pipe rack 1a. N, the minimum width w1 between the pair of pipe stoppers 12a and 12b, the height h _L of the inclined portion, and the length h _U of the vertical portion are set corresponding to the three points of the outer diameter R of N and (γ) pipe. At the same time, the pipes are accumulated inside the frame of the pipe rack 1a so as to form an octagonal shape when the accumulated pipes are viewed from the axial direction. Therefore, when the octagonal shape is formed, the target number N of accumulated pipes can be achieved. Therefore, after the accumulation operation, the number of pipes accumulated inside the frame of the pipe rack 1a is counted one by one and the number is confirmed. There is no need to do.

  Although the present invention has been described by the embodiments disclosed above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, it should be understood that various alternative embodiments, examples, and operational techniques will become apparent to those skilled in the art.

(First modification)
For example, as in the pipe racks 1b and 1c according to the first modification shown in FIG. 11, the pipe racks 1b and 1c are configured with the target integrated pipe number N = 50 and the target integrated pipe number other than 100. May be. The number of 50 pipes juxtaposed in each stage from the bottom to the top is 4, 5, 6, 7, 8, 7, 6, 5, 5, 4 in total in this order. It is stacked in stages. In the case of N = 50, as in the case of N = 100, a pair of pipes is selected depending on the number of lowermost pipes, the number of pipes supported by the inclined part, and the number of pipes arranged between the vertical parts. If the minimum width w1 between the pair of pipe stoppers of each of the racks 1b and 1c, the height h _L of the inclined portion, and the length h _U of the vertical portion are appropriately set, 50 pipes can be accumulated inside the frame. .

(Second modification)
As shown in FIG. 12 (a), a pipe rack 1x according to a second modification of the present invention includes a rod-like lower support 10x having a plurality of pipes Pa1-Pk7 juxtaposed on the upper surface, and the lower side A lower support 10x is detachably provided at one end of the support 10x, and is opposed to the first side support 30a and a first side support 30a protruding in a column shape above the lower support 10x. Then, the second support 30b is provided at the other end of the lower support 10x so as to be detachable from the lower support 10x and protrudes in a columnar shape above the lower support 10x. The pipe racks 1x are respectively arranged on both ends in the longitudinal direction of the plurality of pipes Pa1 to Pk7. As shown in FIG. 12B, the lower support 10x, the first side support 30a, and the second A plurality of pipes Pa <b> 1 to Pk <b> 7 are stacked inside a substantially U-shaped frame having an opening on the upper side, which is formed by the side support 30 b.

  The lower support 10x has the same configuration as the lower support 10 shown in FIG. 1 except that it does not have four protrusions 11a1, 11a2, 11b1, and 11b2. The first side support 30a includes one main body plate 30a1 and a connecting portion 30a2 attached to the lower portion of the main body plate 30a1 and having a substantially U-shaped cross section. The first side support body 30a corresponds to the support body composed of the two main body plates 20a1 and 20a2 shown in FIG. 1, and the pipe rack 1x is formed by one main body plate 30a1. The side wall of the frame is made. Similarly to the first main body plate 20a1 and the second main body plate 20a2 shown in FIG. 1, the main body plate 30a1 is also formed with a vertical portion 32a1 and an inclined portion 34a1.

  A substantially L-shaped notch 36a1 is formed from the inner side toward the outer side at the lower end of the main body plate 30a1 and below the inclined part 34a1. The notch 36a1 is formed such that the long side of the L shape is horizontal along the axial direction of the main body 11x of the lower support 10x, and one end of the long side opens to the center side of the main body 11x. Yes. The notch 36a1 is formed in a state where the short side extending from the other end of the long side of the L-shape is vertical upward so as to be orthogonal to the axial direction of the main body 11x. That is, the inside of the notch 36a1 is formed so as to extend horizontally from the inside to the outside of the main body 11x, and then bend approximately 90 ° to extend upward to reach the bottom of the notch 36a1. The bent portion is formed to be smoothly curved and the bottom portion is formed in a semicircular arc shape.

  The width of the notch 36a1 is equal from the opening to the bottom, and is slightly longer than the diameter of the circular circle of the connecting rod 12a3. The curvature of the semicircular arc at the bottom of the notch 36a1 is set to be approximately the same as or slightly larger than the curvature of the circular circle of the connecting rod 12a3. When integrating the first side support 30a and the lower support 10x, the connecting rod 12a3 is inserted inside the notch 36a1, and the outer peripheral surface of the column of the connecting rod 12a3 is the notch. The first side support 30a is slightly lowered toward the lower support 10x so as to come into contact with the bottom surface of 36a1, and the connecting rod 12a3 and the notch 36a1 are gently fitted.

  When the connecting rod 12a3 and the notch 36a1 are fitted, the connecting rod 12a3 is sandwiched from the left and right by the upper groove on the short side of the notch 36a1, and the horizontal direction (left and right) along the axial direction of the lower support 10x. Direction) is suppressed. Therefore, even if the lower support 10x and the first side support 30a are integrated and a plurality of pipes are integrated inside the frame, the first side support 30a is displaced outward. Thus, it is prevented from coming off from the lower support 10x.

  In addition, the connecting portion 30a2 of the first side support 30a has an inner surface of the U-shaped groove of the main body 11x of the lower support 10x when the connecting rod 12a3 is fitted at the bottom surface of the notch 36a1. The dimensions of thickness and height and the attachment position to the main body plate 30a1 are set so as to contact the outer surface. At the same time as the connecting rod 12a3 and the notch 36a1 are fitted, the two plate-like portions forming the opposite side walls of the U-shaped groove of the connecting portion 30a2 are the front and rear surfaces of the main body 11x of the lower support 10x. Are in close contact with each other at the same time. Further, the plate-like portion forming the bottom of the U-shaped groove is in close contact with the upper surface of the main body 11x. Thereby, the connection part 30a2 fits with the main body 11x.

  The second side support 30b has the same structure as the first side support 30a, and is different in that the end attached to the lower support 10x is opposite to the first side support 30a. . The main body plate 30b1 of the second side support 30b corresponds to the main body plate 30a1 of the first side support 30a. The vertical portion 32b1 at the center of the second side support 30b, the inclined portion 34b1 at the bottom and the notch 36b1 at the lower end are the vertical portion 32a1 at the center of the first side support 30a, and the lower slope It corresponds to the part 34a1 and the notch 36a1 at the lower end. The connecting portion 30b2 of the second side support 30b corresponds to the connecting portion 30a2 of the first side support 30a.

  The first side support 30a is stably attached to the lower support 10x using the frictional force generated by fixing the connecting rod 12a3 by the notch 36a1 and the contact between the connecting portion 30a2 and the main body 11x. . The second side support 30b is stably attached to the lower support 10x by using the frictional force generated by fixing the connecting rod 12b3 by the notch 36b1 and the contact between the connecting portion 30b2 and the main body 11x. It is done. Like the pipe rack 1x according to the second modification, even if the side support is constituted by a single plate-like member, a stable frame is formed as in the pipe rack 1a shown in FIG. A plurality of pipes can be accumulated and counted inside the frame.

  The pipe rack according to the present invention may be configured by combining the technical ideas of the embodiment of the present invention and the other embodiments as shown in FIGS. As described above, the present invention includes various embodiments and the like not described in the present specification and drawings, and the technical scope of the present invention is specified by the invention according to the scope of claims reasonable from the above description. It is determined only by matters.

DESCRIPTION OF SYMBOLS 1a Pipe rack 10 Lower side support body 11 Main body board 11a1, 11a2, 11b1, 11b2 Protrusion part 12a, 12b Pipe stopper 20a 1st side support body 20a1, 20a2, 20a3 Connecting rod 20b 2nd side support body 20b1, 20b2, 20b3 Connecting rod 26a1, 26a2, 26b1, 26b2 Notch Pa1-Pk7 Pipe

Claims (2)

A rod-like lower support;
One end of the lower support body has a first inclined portion that intersects with the upper surface of the lower support body at an acute angle on the inside, has an edge on the opposite side of the acute angle on the outside, and The side protrudes in a columnar shape above the lower support, and has a first notch that opens to the other end of the lower support below the first inclined portion on the inner side. And a first side support provided to be detachable from the lower support by fitting the first notch to a part of the lower support from the side,
A second slope that is opposed to the first side support and is inclined in the opposite direction to the first inclined portion at the other end of the lower support and intersects the upper surface of the lower support at an acute angle. A portion on the inner side, a side on the opposite side of the acute angle on the outer side, the side on the opposite side on the outer side protruding in a columnar shape above the lower support, and the second slope on the inner side A second notch that opens to one end of the lower support, and the second notch is fitted to a part of the lower support from the side. And a second side support provided detachably with the lower support ,
A substantially U-shaped frame is configured by the opposite side of the lower support, the first side support, and the opposite side of the second side support. A pipe rack for accumulating a plurality of pipes stacked in a plurality of stages in a recess defined by the first inclined part, the second inclined part, and the upper surface of the lower support, which are inside .   The first pipe stopper and the second pipe stopper, which prevent the movement of the pipe, are formed on the upper surface of the lower support member, respectively, apart from each other. Pipe rack.

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