JP2018164941A - Manufacturing method for suspension cradle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method for a simpler suspension cradle.SOLUTION: A manufacturing method for a suspension cradle, stretched between foundations of a building skeleton to support equipment unit, has: a step of bending inward, in at least one of both ends of a metallic rectangular pipe having a rectangular cross section, the pair of side plates in a projection form so that the pair of opposed side plates of the rectangular pipe may approach each other; and a step of forming, by folding both the ends almost at a right angle to the center of the rectangular pipe, a support part that supports the equipment unit from the center to form a pair of anchors anchored on the foundation from both the ends.SELECTED DRAWING: Figure 1

Description

  Aspects of the present invention generally relate to a method for manufacturing a suspension platform.

  There is known a suspension stand that is bridged and fixed between the bases of a building frame and supports an equipment unit such as a bathroom unit (for example, Patent Document 1). The suspension mount includes a pair of suspension fittings that are fixed to a base such as a large pull or a floor beam, and a mount that is spanned between the suspension fittings. As described above, since the hanging metal fitting and the gantry are configured separately, it is necessary to assemble the hanging metal fitting and the gantry.

JP 2006-112510 A

  The present invention has been made on the basis of recognition of such a problem, and an object thereof is to provide a simpler manufacturing method of a suspension base.

  1st invention is the manufacturing method of the suspension stand for spanning between the foundations of a building frame, and supporting an installation unit, Comprising: In at least one of the both ends of the metal square pipe which has a rectangular cross section A step of bending the pair of side plates convexly inward so that the pair of side plates facing each other of the square pipes are close to each other, and the both end portions are substantially perpendicular to the central portion of the square pipe. Forming a support portion for supporting the equipment unit from the center portion and bending a pair of fixing portions to be fixed to the base from the both end portions. It is a manufacturing method.

  According to this method for manufacturing a suspension base, the suspension base can be manufactured by simply bending a single metal square pipe. Therefore, compared with the case where a suspension stand is manufactured by combining a square pipe and another member, it is possible to reduce the time and effort of assembly and to manufacture the suspension stand more easily. Moreover, compared with the case where a suspension stand is manufactured combining a square pipe and another member, member cost can be reduced. Also, in order to bend the pair of side plates in a convex shape inward so that the pair of opposite side plates of the opposite ends of the square pipe approach each other, while suppressing the thickness of the fixed portion required to be thin, The fixing portion can have high strength.

  2nd invention is a manufacturing method of the suspension stand characterized by further having the process of providing a reinforcement part in said at least one of the both ends of the said square pipe in 1st invention.

  In the first invention described above, in the end region (end portion of the square pipe) of the suspension base, the pair of side plates facing each other of the square pipe are bent in a convex shape so as to approach each other. While the thickness can be reduced, when the user rides on the floor placed on the suspension platform, the suspension platform has a longitudinal swing or a sway compared to the case where the end region of the suspension platform has a rectangular cross section. Subsidence can increase. On the other hand, according to the method for manufacturing the suspension stand, even if the end portion of the square pipe is bent by providing a reinforcing portion on at least one of both ends of the square pipe, the end region of the suspension stand is more High strength can be given. Thereby, when a load is applied to the bathroom unit, it is possible to more reliably suppress the floor shaking in the longitudinal direction and the floor sinking.

  According to the aspect of the present invention, a simpler method for manufacturing a suspension base is provided.

It is a perspective view showing an example of the use condition of the suspension stand which concerns on embodiment. It is a perspective view showing an example of the use condition of the suspension stand which concerns on embodiment. It is a top view showing an example of the use condition of the suspension stand concerning an embodiment. It is a perspective view showing the suspension stand which concerns on embodiment. It is sectional drawing showing a part of suspension stand which concerns on embodiment. It is sectional drawing showing a part of suspension stand which concerns on embodiment. It is a fragmentary sectional view showing an example of the use condition of the suspension stand concerning an embodiment. Fig.8 (a)-FIG.8 (d) are explanatory drawings showing an example of the manufacturing process of the suspension stand which concerns on embodiment. It is sectional drawing showing a part of modification of the suspension mount frame concerning embodiment. It is sectional drawing showing a part of modification of the suspension mount frame concerning embodiment. It is sectional drawing showing a part of modification of the suspension mount frame concerning embodiment. FIG. 12A and FIG. 12B are explanatory views showing a part of a modification of the suspension base according to the embodiment. It is a side view showing the modification of the suspension mount frame concerning embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG.1 and FIG.2 is a perspective view showing an example of the use condition of the suspension stand based on embodiment.
FIG. 3 is a plan view illustrating an example of a usage state of the suspension frame according to the embodiment.
FIG. 4 is a perspective view illustrating a suspension base according to the embodiment.
As illustrated in FIGS. 1 to 4, the suspension base 10 includes a support portion 12 and a pair of fixing portions 14.

  The suspension base 10 is bridged between the bases 2 of the building frame, and is fixed to the base 2 for use. The suspension base 10 is made of metal, for example. For the suspension base 10, for example, a metal material such as iron, stainless steel, or aluminum is used. The base 2 is, for example, a large pull that constructs a floor on the first floor, a floor beam that constructs a floor on the second floor, or the like. The suspension base 10 is bridged between the bases 2 and supports equipment units such as the bathroom unit 4 while being fixed to the bases 2. The equipment unit is not limited to the bathroom unit 4 and may be any unit used in a sanitary equipment room such as a bathroom, a toilet, a washroom, or a kitchen.

  For example, a plurality of suspension bases 10 are fixed to the base 2 side by side. The bathroom unit 4 is supported by a plurality of suspension platforms 10. As described above, the plurality of suspension bases 10 are used together in the use state. 1 to 3 show an example in which two suspension bases 10 are used together. The number of suspension bases 10 used together is not limited to two, and may be three or more.

  The support unit 12 supports equipment units such as the bathroom unit 4. In other words, the support part 12 is a part on which the bathroom unit 4 is placed. The support part 12 has a long shape extending in one direction. The extending direction of the support part 12 is a horizontal direction. Hereinafter, the extending direction of the support portion 12 is referred to as a “longitudinal direction”. A direction from the lower surface of the support portion 12 toward the upper surface 12a of the support portion 12 is referred to as “vertical direction”. A direction perpendicular to the longitudinal direction and the vertical direction is referred to as a “width direction”.

  A tray 16 is provided on the upper surface 12 a of the support portion 12. The tray 16 receives the legs 4a of the bathroom unit 4 (see FIG. 7). The saucer 16 is fixed to the upper surface 12a of the support part 12 by screwing or the like, for example. For example, the support portion 12 is provided with a plurality of trays 16. In this example, four trays 16 are provided on the support portion 12. The number of the trays 16 may be an arbitrary number. The tray 16 is provided as necessary and can be omitted.

  Each fixing portion 14 is provided at both ends of the support portion 12, extends upward from the support portion 12, and is fixed to the base 2. Each fixing portion 14 includes, for example, an arm portion 14a that extends upward from the end portion in the longitudinal direction of the support portion 12, and an engagement portion 14b that extends in the horizontal direction (longitudinal direction) from the upper end of the arm portion 14a toward the outside. Have

  The engaging portion 14 b engages on the base 2. The engagement portion 14b is provided with a through hole for inserting a screw, for example. Each fixing portion 14 is fixed to the base 2 by screwing the engaging portion 14b to the base 2 in a state where the engaging portion 14b is engaged on the base 2. The fixing method of each fixing | fixed part 14 is not restricted above, Arbitrary methods may be sufficient.

  The length of the support portion 12 in the longitudinal direction is such that the base 2 such as a large drawer or a floor beam arranged in a predetermined interval with the engaging portions 14b of the respective fixing portions 14 engaged on the base 2 is arranged. Set to the length spanned between them. Thereby, the bathroom unit 4 can be supported by the support part 12 in a state where each fixing part 14 is fixed to the base 2.

FIG. 5 is a cross-sectional view illustrating a part of the suspension base according to the embodiment.
FIG. 5 shows a cross section taken along line A1-A2 of FIG.
As shown in FIG. 5, the support portion 12 has a cylindrical shape having a rectangular cross section. In other words, the support portion 12 has a square pipe shape. The support unit 12 includes a first side plate 21, a second side plate 22, an upper plate 23, and a lower plate 24.

  The upper plate 23 faces the lower plate 24. The upper plate 23 and the lower plate 24 have a horizontal plate shape. The upper plate 23 and the lower plate 24 are parallel flat plates arranged horizontally. The upper plate 23 and the lower plate 24 may have an inclination of an error level. “Horizontal” is, for example, a state in which the inclination in each direction is ± 2 ° or less when the complete horizontal is the reference (0 °). The upper plate 23 forms the upper surface 12 a of the support portion 12. The saucer 16 is fixed to the upper plate 23.

  The first side plate 21 extends in the vertical direction and connects one end of the upper plate 23 in the width direction and one end of the lower plate 24 in the width direction. The second side plate 22 extends in the vertical direction and connects the other end of the upper plate 23 in the width direction and the other end of the lower plate 24 in the width direction.

  The lengths of the first side plate 21 and the second side plate 22 in the vertical direction are substantially the same as the lengths of the upper plate 23 and the lower plate 24 in the width direction. That is, the cross-sectional shape of the support portion 12 is a square shape. The lengths of the first side plate 21 and the second side plate 22 in the vertical direction may be shorter than the lengths of the upper plate 23 and the lower plate 24 in the width direction, for example.

FIG. 6 is a cross-sectional view illustrating a part of the suspension base according to the embodiment.
6 represents a cross section taken along line B1-B2 of FIG.
As illustrated in FIG. 6, each of the fixed portions 14 includes a first bent portion 31, a second bent portion 32, an upper surface portion 33, and a lower surface portion 34. The upper surface portion 33 faces the lower surface portion 34. The first bent portion 31 connects one end of the upper surface portion 33 in the width direction and one end of the lower surface portion 34 in the width direction. The second bent portion 32 connects the other end of the upper surface portion 33 in the width direction and the other end of the lower surface portion 34 in the width direction. The first bent portion 31 and the second bent portion 32 bend in a convex shape inward so as to approach each other.

FIG. 7 is a partial cross-sectional view illustrating an example of a usage state of the suspension frame according to the embodiment.
FIG. 7 shows a cross section taken along line C1-C2 of FIG.
As shown in FIG. 7, each of the fixed portions 14 is formed integrally with the support portion 12. In other words, each of the fixed portions 14 is continuous with the support portion 12. The upper surface portion 33 extends so as to continue from the upper plate 23. The lower surface portion 34 extends from the lower plate 24. The first bent portion 31 extends from the first side plate 21. The second bent portion 32 extends so as to continue from the second side plate 22.

  Each fixing portion 14 is formed by bending both end portions of the support portion 12. When the first side plate 21 and the second side plate 22 are bent to form the first bent portion 31 and the second bent portion 32, the vertical lengths of the first side plate 21 and the second side plate 22 are the upper plate 23 and If it is longer than the length of the lower plate 24 in the width direction, the first bent portion 31 and the second bent portion 32 are difficult to form, for example, a portion that overlaps the first bent portion 31 and the second bent portion 32 is generated. turn into. Therefore, as described above, the vertical lengths of the first side plate 21 and the second side plate 22 are preferably equal to or shorter than the lengths of the upper plate 23 and the lower plate 24 in the width direction.

  As shown in FIG. 7, the arm portion 14 a of each fixing portion 14 needs to be inserted through a gap CL that is vacant between the base 2 and the bathroom unit 4. At this time, the gap CL is relatively narrow. The gap CL is, for example, not less than 2 cm and not more than 10 cm. Therefore, it is preferable that the thickness of each fixing portion 14 (the length in the direction perpendicular to the upper surface and the lower surface) be as thin as possible. The thickness T2 (see FIG. 6) of each fixing portion 14 is, for example, less than half the thickness T1 (see FIG. 5) of the support portion 12. Thereby, high intensity | strength can be given to each fixing | fixed part 14, suppressing the thickness of each fixing | fixed part 14 appropriately. Further, the gap CL can be narrowed. The thickness T1 of the support part 12 is 3 cm or more and 20 cm or less, for example. The thickness T2 of each fixing portion 14 is, for example, not less than 0.5 cm and not more than 2 cm.

Fig.8 (a)-FIG.8 (d) are explanatory drawings showing an example of the manufacturing process of the suspension stand which concerns on embodiment.
As shown in FIGS. 8A to 8D, for example, a metal square pipe 100 having a rectangular cross section is used for manufacturing the suspension base 10. 8A and 8C show a state in which the end portion 100a of the square pipe 100 is viewed from the width direction side. FIGS. 8B and 8D show a state in which the end portion 100a of the square pipe 100 is viewed from the longitudinal direction side.

  In manufacturing the suspension base 10, first, as shown in FIGS. 8A to 8D, the opposing pair of side plates 121 and 122 approach each other at both ends 100 a of the square pipe 100. The pair of side plates 121, 122 are bent inwardly in a convex shape.

  For example, as shown in FIG. 8B, the vicinity of the center in the vertical direction of the side plates 121 and 122 is pressed inward from the outside. At the same time, the upper plate 123 of the end portion 100a is pressed downward with a substantially equal force in the left-right direction, and the lower plate 124 of the end portion 100a is pressed upward with a substantially equal force in the left-right direction. In other words, the end portion 100a is pressed in the vertical direction while applying force to the end portion 100a from both sides to fold the side plates 121 and 122 inward. As a result, as shown in FIGS. 8C and 8D, the end portion 100a of the square pipe 100 can be crushed with the side plates 121 and 122 bent. At this time, the thickness of both end portions 100a of the square pipe 100 is, for example, less than half the thickness of the central portion 100b of the square pipe 100.

  After that, by bending both end portions 100a upward (substantially at right angles) to the central portion 100b of the square pipe 100, the support portion 12 is formed from the central portion 100b, and each fixing portion 14 is formed from both end portions 100a ( (See FIG. 7). More specifically, both end portions 100a are bent upward at a substantially right angle to form an arm portion 14a, and a part of the arm portion 14a located on the opposite side to the central portion 100b is further bent in the horizontal direction. The engaging portion 14b is formed. Then, the tray 16 is fixed to the upper surface 12a (upper plate 23) of the support part 12 as needed. Thereby, the suspension frame 10 is manufactured from the square pipe 100. A substantially right angle refers to a range of 85 ° to 95 °.

  The step of bending the side plates 121 and 122 may be performed by bending the side plates 121 and 122 at one end 100a of the square pipe 100 and then bending the side plates 121 and 122 at the other end 100a. Alternatively, the side plates 121 and 122 may be bent substantially simultaneously at both ends 100a of the square pipe 100.

  The step of bending both end portions 100a at a substantially right angle may be performed by bending one end portion 100a of the square pipe 100 and then bending the other end portion 100a, or by bending both end portions 100a substantially simultaneously. Good. For example, the step of bending both end portions 100a at a substantially right angle by pressing using a mold or the like may be performed substantially simultaneously with the step of bending the side plates 121 and 122.

  As described above, according to the suspension base 10 and the manufacturing method thereof according to the present embodiment, the support portion 12 and the pair of fixing portions 14 are integrally configured, so that compared to the case where they are configured separately. Thus, it is possible to reduce the time and effort of assembly and to manufacture the suspension base 10 more easily. Further, the upper surface portion 33, the lower surface portion 34, the first bent portion 31, and the second bent portion 32 of the pair of fixing portions 14 are respectively connected to the upper plate 23, the lower plate 24, the first side plate 21, and the support portion 12. The second side plate 22 extends in a continuous manner. For this reason, for example, when using the metal square pipe 100 with high rigidity in the manufacture of the suspension base 10, the suspension base 10 can be manufactured simply by bending and processing both ends 100a of the square pipe 100. . Therefore, the suspension base 10 can be manufactured more easily than the case where the suspension base is manufactured by combining the square pipe 100 and another member. Moreover, member cost can be reduced rather than the case where a suspension stand is manufactured combining the square pipe 100 and another member.

  Furthermore, since the first bent portion 31 and the second bent portion 32 of the fixing portion 14 are bent inwardly so as to approach each other, the thickness of the fixing portion 14 that is required to be thin is reduced. It is possible to give the fixing portion 14 high strength while suppressing it. For example, when the construction worker rests on the support portion 12 and moves, the fixing portion 14 can be made more difficult to deform with respect to the twist acting on the support portion 12.

  For example, the first bent portion 31 and the second bent portion 32 may be bent outwardly so as to be separated from each other. In this case, it must be pressed from the inside to the outside of the square pipe 100, which makes manufacturing difficult. For example, it becomes difficult to manage the dimensions of the first bent portion 31 and the second bent portion 32. Further, when bent outward, the thickness becomes thinner by the first bent portion 31 and the second bent portion 32 than when bent inward, and the strength of the fixing portion 14 is reduced. Resulting in. In this way, when bent inward, the first bent portion 31 and the second bent portion 32 can be manufactured more easily than when bent outward, and the strength of the fixing portion 14 is increased. Can be further improved.

  In the suspension base 10, the thickness T <b> 2 of the pair of fixing portions 14 is less than or equal to half the thickness T <b> 1 of the support portion 12. Thereby, high intensity | strength can be given to the fixing | fixed part 14, suppressing the thickness of the fixing | fixed part 14 appropriately.

FIG. 9 is a cross-sectional view illustrating a part of a modified example of the suspension base according to the embodiment.
FIG. 6 shows a state in which there is substantially no gap inside the fixed portion 14. Without being limited thereto, as illustrated in FIG. 9, the fixing portion 14 may have a gap AG <b> 1 between the first bent portion 31 and the upper surface portion 33. The fixing portion 14 may have a gap AG <b> 2 between the first bent portion 31 and the lower surface portion 34. The fixing portion 14 may have a gap AG3 inside the first bent portion 31 bent in two. The fixing portion 14 may have a gap AG4 between the second bent portion 32 and the upper surface portion 33. The fixing portion 14 may have a gap AG <b> 5 between the second bent portion 32 and the lower surface portion 34. The fixing portion 14 may have a gap AG6 inside the second bent portion 32 bent in two. Further, the fixing portion 14 may have a gap AG <b> 7 between the first bent portion 31 and the second bent portion 32.

  In FIG. 9, the fixing | fixed part 14 has each of the clearance gaps AG1-AG7. Any one of the gaps AG1 to AG7 provided in the fixed portion 14 may be provided. That is, the fixing portion 14 may have any one of the gaps AG1 to AG7 or may not have the gaps AG1 to AG7.

FIG.10 and FIG.11 is sectional drawing showing a part of modification of the suspension stand which concerns on embodiment.
As shown in FIGS. 10 and 11, in this example, the fixing unit 14 includes an adjustment unit 50 that can adjust the horizontal level of the support unit 12.

  The adjusting unit 50 includes, for example, a through hole 51 that passes through the engaging portion 14b of the fixing unit 14 in the vertical direction, and a female screw portion 52 that is provided on the lower surface of the lower surface portion 34 so as to face the through hole 51. . The female screw portion 52 is, for example, a nut attached to the lower surface of the lower surface portion 34 by welding. A pair of through holes 54 for inserting fixing screws are provided on both sides of the through hole 51 in the width direction.

  As shown in FIG. 11, a male screw 56 is inserted through the through hole 51 and the female screw portion 52. The male screw 56 is screwed with the female screw portion 52. A portion of the male screw 56 that projects downward from the female screw portion 52 contacts the base 2. Therefore, the horizontal level θ of the support portion 12 is adjusted by rotating the male screw 56 so that the length of the portion protruding downward from the female screw portion 52 of the male screw 56 is set in each fixing portion 14. be able to. In other words, the horizontal level θ is an inclination with the width direction of the support portion 12 as an axis.

  Thus, after adjusting the horizontal level θ of the support portion 12 with the adjusting portion 50, the fixing portions 14 are fixed to the base 2 by inserting fixing screws into the respective through holes 54. Thereby, the support part 12 can be made more horizontal. Therefore, equipment units, such as bathroom unit 4, can be supported more appropriately. The configuration of the adjustment unit 50 is not limited to the above, and may be any configuration that can adjust the horizontal level θ of the support unit 12.

FIG. 12A and FIG. 12B are explanatory views showing a part of a modification of the suspension base according to the embodiment.
FIG. 12A is a perspective view showing a part of a modification of the suspension base according to the embodiment.
FIG.12 (b) represents the D1-D2 line cross section of Fig.12 (a).

  As shown in FIGS. 12A and 12B, in this example, a rivet 60 that penetrates the fixing portion 14 in the thickness direction is provided in the fixing portion 14. The rivet 60 functions as a reinforcing part. By providing the rivet 60, it is possible to suppress the opening of the first bent portion 31 and the second bent portion 32 of the fixed portion 14 that is pressed in the vertical direction and folded inward.

  The rivet 60 is provided on the arm portion 14 a of the fixed portion 14. The rivets 60 are provided on both the first bent portion 31 side and the second bent portion 32 side of the arm portion 14a. In this example, a plurality of rivets 60 are provided along the direction in which the arm portion 14a of the fixed portion 14 extends. The number of rivets 60 may be any number. The rivet 60 is provided as necessary and can be omitted.

  For example, the rivet 60 is provided on the arm portion 14a after the square pipe 100 is pressed in the vertical direction and folded inward to form the arm portion 14a and the engaging portion 14b. The rivet 60 may be provided at a position to be the arm portion 14a before the arm portion 14a and the engaging portion 14b are formed after the square pipe 100 is pressed in the vertical direction and folded inside.

  Bolt nuts or the like can be provided so that the first bent portion 31 and the second bent portion 32 do not open, and the reinforcing portion can be used. Alternatively, the first bent portion 31 and the second bent portion 32 can be spot welded so that the first bent portion 31 and the second bent portion 32 do not open, thereby forming a reinforcing portion. Moreover, in the arm part 14a, the structure (bead) which makes height near the center part of the width direction higher than the height of the both ends of the width direction can also be provided, and it can also be set as a reinforcement part. Moreover, you may combine these reinforcement parts.

  By providing such a reinforcing portion, for example, the opening of the first bent portion 31 and the second bent portion 32 can be suppressed. Therefore, it can suppress that the intensity | strength of the fixing | fixed part 14 falls because the 1st bending part 31 and the 2nd bending part 32 open. The end region 10b of the suspension base 10 can have higher strength. Thereby, shaking and sinking of the bathroom unit 4 etc. can be suppressed.

FIG. 13 is a side view illustrating a modified example of the suspension frame according to the embodiment.
As shown in FIG. 13, in this example, of the pair of fixing portions 14x and 14y, only the fixing portion 14x is pressed in the vertical direction and folded inward. In other words, only one (fixed portion 14 x) of the pair of fixed portions 14 includes the first bent portion 31, the second bent portion 32, the upper surface portion 33, and the lower surface portion 34. In the fixed portion 14x, similarly to the above, an arm portion 14a and an engaging portion 14b are formed by the end portion 100a of the square pipe 100 that is pressed in the vertical direction and folded inward. On the other hand, in the fixed portion 14y, a gently curved arm portion 14a and an engaging portion 14b are formed by the end portion 100a of the square pipe 100 that is not pressed in the vertical direction.

  The fixing portion 14x can be formed by the same method as described above. The fixing portion 14y can be formed by the same method as described above except that the end portion 100a of the square pipe 100 is not pressed in the vertical direction. In other words, the pair of side plates 121 and 122 protrude inward so that the pair of opposite side plates 121 and 122 approach each other only at one end (fixed portion 14x) of both end portions 100a of the square pipe 100. Bend into a shape.

  The fixing portion 14y is a fixing portion on the side where the bathtub is installed. On the side where the bathtub is installed, there may be a case where a gap CL which is vacant between the base 2 and the bathroom unit 4 can be widened as compared with the side where the washing place is installed. On the other hand, the side where the washing place is installed is placed between the base 2 and the bathroom unit 4 in order to place a washing place floor on which the user may put his feet etc. between the base 2 and the bathroom unit 4. The vacant gap CL is preferably smaller. For example, in such a case, the fixing part 14 on the side where the bathtub is installed can be configured as a fixing part 14y. Like the fixing portion 14y, the end region 10b of the suspension base 10 can be given higher strength by making the end portion 100a of the square pipe 100 be gently curved without being thinned. Thereby, shaking and sinking of the bathroom unit 4 etc. can be suppressed.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, size, material, arrangement, and the like of each element included in the suspension base 10 are not limited to those illustrated, and can be appropriately changed.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  2 foundations, 4 bathroom units, 10 suspension bases, 12 support parts, 14 fixing parts, 16 trays, 21 first side plates, 22 second side plates, 23 upper plates, 24 lower plates, 31 first bent portions, 32 second bent portions Part, 33 top face part, 34 bottom face part, 50 adjusting part, 51 through hole, 52 female thread part, 54 through hole, 56 male thread, 60 rivets, 100 square pipe, 121, 122 side plate, 123 top plate, 124 bottom plate

Claims (2)

A method of manufacturing a suspension frame that is bridged between the foundations of a building frame and supports equipment units,
At least one of both ends of a rectangular metal pipe having a rectangular cross section, the pair of side plates are bent inwardly so that the pair of opposite side plates of the square pipe approach each other. Process,
By bending the both end portions at a substantially right angle with respect to the center portion of the square pipe, a support portion for supporting the equipment unit is formed from the center portion, and a pair of fixing portions fixed to the base are formed at the both end portions. Forming from
A method for manufacturing a suspension base, comprising:   The method for manufacturing a suspension base according to claim 1, further comprising a step of providing a reinforcing portion on at least one of both ends of the square pipe.

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