JP2015151797A - Support leg for double floor and double floor equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support leg for a double floor capable of inexpensively and strongly fixing a column to a base part, and preventing rotation of the column to the base member, with a simple structure.SOLUTION: A support leg 1 for a double floor is provided with a panel receiving part 30 for supporting a floor panel P in a height adjustable state by a column 20 erected in a base part 10 installed on a foundation floor surface B, and the column 20 is composed of a bolt for providing a male screw 20a on the outer periphery, and a through-hole 15 of a different shape from a cross-sectional shape of the column 20, is bored in the base part 10, and the male screw 20a of the column 20 and the vicinity of the through-hole 15 of the base part 10 are caulked by pushing the column 20 in the through-hole 15, so that the column 20 is fixed to the base part 10.

Description

  The present invention relates to a double floor support leg and a double floor facility, for example, for a double floor provided with a panel receiving portion that supports a floor panel in a state in which a height can be adjusted on a support column erected on a base portion. And a double floor facility in which a floor panel is placed on the support leg.

  The support legs for the double floor are widely used in the structure where the support is installed in a standing state on the base installed on the foundation floor. There are a fixed structure and a structure in which a support is fixed to a base portion by caulking.

  In the case of fixing by welding, there is an advantage that the fixing strength is high, but in addition to difficult to fix the base and the support at right angles, the time required for welding is long, the cost is high, and the productivity is inferior have.

  On the other hand, in the case of fixing by caulking, it has the advantage that it is easy to increase the right angle accuracy between the base portion and the column and the advantage that the processing time can be shortened, compared to fixing by welding. And the technique of fixing a support | pillar to a base part by caulking is disclosed by patent document 1, 2, for example.

  In Patent Document 1, a first member (base portion) provided with a hole, a reinforcing plate provided with a hole, and a second member (support) are prepared, and the hole and the reinforcement of the first member are prepared. A part of the second member is inserted into a hole in the plate and the first member and the reinforcing plate are overlapped with each other, and the second member is plastically deformed, and the first member and A connecting method for connecting the first member and the second member by caulking the reinforcing plate is disclosed.

  Patent Document 2 discloses a support leg of a free access floor panel having a structure in which a lower end of a support is fitted into a hole formed in a base plate. The support leg is formed in a single continuous closed shape with a non-circular shape of the hole, and a cross-sectional shape of a support column that is fitted into the hole is formed in a shape inscribed over the entire circumference of the hole. Yes.

Japanese Patent Laid-Open No. 5-212468 JP 2003-120006 A

However, in the technique described in Patent Document 1, it is necessary to provide a special shape for caulking and coupling to the lower end of the second member (post), the post itself becomes expensive, and a reinforcing plate is required. Therefore, there is a technical problem that the number of parts increases, resulting in an increase in cost.
Further, in the technique described in Patent Document 1, since the outer shape of the hole of the first member (base portion) and the outer shape of the second member (support) are both formed in a circular shape, the caulking connection is loosened by some external force. In this case, there is a technical problem that the column rotates. Therefore, when the technique described in Patent Document 1 is used for the support leg for the double floor, when the height of the panel receiver is adjusted in the installation work of the double floor, the panel receiver and the column are put together. There is a possibility that a problem arises that it becomes difficult to accurately adjust the height.

  Moreover, according to the structure of the support leg of the free access floor panel described in Patent Document 2, the problem that the support column itself rotates is eliminated, but a special shape for caulking is required at the lower end of the support column. The cost increase is inevitable.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to have a simple structure, inexpensively and firmly fixing a support to a base, and preventing the support from rotating relative to the base. The object is to provide support legs for heavy beds. Moreover, the objective of this invention is providing the double floor installation provided with the said support leg.

  The present invention, which has been made to solve the above technical problem, is provided with a panel receiving portion that supports a floor panel in a state in which the height can be adjusted on a support column installed on a base portion installed on a foundation floor surface. It is a support leg for a floor, and the support column is composed of a bolt provided with an external thread on the outer periphery, and a through hole having a shape different from the cross-sectional shape of the support column is formed in the base portion. Is pushed into the through hole so that the male screw of the support column and the vicinity of the through hole of the base unit are caulked so that the support column is fixed to the base unit.

As described above, in the present invention, the support column and the base are caulked and firmly fixed by the components (base portion, support column) having a simple structure without using the support column having a special shape. Further, according to the present invention, since it is not necessary to use a reinforcing plate, the number of parts can be reduced as compared with the configuration of Patent Document 1. As a result, according to the present invention, it is possible to provide an inexpensive support leg for a double floor as compared with the above-described prior art.
Further, in the present invention, since a through hole having a shape different from the cross-sectional shape of the support column is formed in the base portion, when the support column is pushed into the through hole and the support column and the base portion are caulked, on the peripheral surface of the support column, A portion where the deformation of the base portion and the male screw portion of the support column is large (a portion where the penetration depth becomes deep) and a portion where the deformation of the base portion and the male screw portion of the support column is small (a portion where the penetration depth becomes shallow) are generated. That is, in the present invention, by caulking the support column and the base portion, portions having different deformation conditions (entry conditions) are generated on the peripheral surface of the support column, and therefore the support column itself is difficult to rotate.

Further, the support column has a circular cross-sectional shape, and the through-hole has a substantially elliptical shape having a pair of opposing linear portions and a pair of arc portions connecting both ends of the linear portion in plan view. It is desirable that it be formed. In addition, it is preferable that the length of the diameter of the cross-sectional shape of the support column is the same as or slightly larger than the length of the long diameter of the through hole.
According to this configuration, when the support column and the base are caulked and fixed, the base portion support portion enters the base portion at the long diameter portion of the through hole in the base portion, and the base portion support column at the short diameter portion of the through hole. Since the state of entering into the state becomes different, even if an external force is applied after caulking, there is no possibility that the column will rotate with respect to the base, and the base and column will be firmly and stably fixed over a long period of time. .

In addition, it is preferable that the entire outer shape of the through-hole is smaller than the entire outer shape of the cross-sectional shape of the column, and the column is caulked to the through-hole over the entire circumference.
By comprising in this way, a support | pillar is firmly fixed with respect to a base part.

In addition, it is desirable that a peripheral recess is formed in the vicinity of the through hole on the back surface of the base portion.
With this configuration, when the base portion and the support column are caulked, even if the support column slightly protrudes downward, it is possible to prevent the support legs from “shaking”.

Further, a concave portion for the adhesive pool is provided in a portion other than the peripheral concave portion on the back surface of the base portion, and the depth dimension of the concave portion for the adhesive pool is larger than the depth dimension of the peripheral concave portion. It is desirable that
Thus, the depth dimension of the peripheral recess formed in the vicinity of the through hole of the base portion is configured to be larger than the depth dimension of the adhesive pool recess, so that the pressure from the upper portion of the floor panel supported by the support legs This suppresses the problem that the base part itself is deformed. In addition, with this configuration, it is possible to expect an effect that the adhesive enters the peripheral concave portion at the time of construction, and the fixing of the caulking portion becomes stronger.

  Further, the present invention is a double floor facility, wherein a plurality of the support legs for the above-mentioned double floor are arranged on the foundation floor surface, and the floor panel is placed on the panel receiving portion of the support legs. It is characterized by.

  With this configuration, it is possible to provide a double floor facility including a support leg having a simple structure, a low cost, and a solid support fixed to a base. The support legs have a structure that prevents the support column from rotating relative to the base portion. Therefore, the double floor facility of the present invention can easily and accurately adjust the height of the panel receiving portion of the support leg when constructing the double floor facility, and the workability is improved.

  According to the present invention, it is possible to provide a support leg for a double floor that has a simple structure, can be inexpensively and firmly fixed to a base, and prevents the support from rotating relative to the base. Moreover, according to this invention, the double floor installation provided with the said support leg can be provided.

It is a schematic diagram which shows the double floor installation of embodiment of this invention, (a) is a schematic diagram which shows the plane of a double floor installation, (b) is a schematic diagram which shows the front of a double floor installation. . It is an exploded front view of the support leg for double floors of an embodiment of the present invention. It is a front view of the support leg for double floors of an embodiment of the present invention. It is a schematic diagram which shows the base part which comprises the support leg for double floors of embodiment of this invention, (a) is a schematic diagram which shows the plane of a base part, (b) shows the bottom face of a base part. It is a schematic diagram, (c) is a schematic diagram which shows the front of a base part, (d) is a schematic diagram which shows the A1-A1 cross section of (a) figure. It is a schematic diagram which shows the support | pillar which comprises the support leg for double floors of embodiment of this invention, (a) is a schematic diagram which shows the plane of a support | pillar, (b) is a schematic diagram which shows the front of a support | pillar. is there. It is a schematic diagram for demonstrating the peripheral recessed part provided in the base part of embodiment of this invention, (a) is the schematic diagram which showed the plane of the base part which has a peripheral recessed part, (b) is (a). It is a schematic diagram which shows the A2-A2 cross section of a figure, and is a figure which showed the example in case a peripheral recessed part is shallower than an adhesive agent accumulation recessed part, (c) is a schematic diagram which shows the A2-A2 cross section of (a) figure It is a figure showing an example in which the peripheral recess and the adhesive pool recess are the same depth, (d) is an A2-A2 cross-sectional explanatory view of (a), the peripheral recess is more than the adhesive pool recess It is the figure which showed the example in the case of deep. It is the schematic diagram for demonstrating the modification of the through-hole of the base part of embodiment of this invention, (a) is the schematic diagram which showed the 1st modification of the through-hole, (b) is a through-hole. It is the schematic diagram which showed the 2nd modification. It is the schematic diagram for demonstrating the modification of the through-hole of the base part of embodiment of this invention, (a) is the schematic diagram which showed the 3rd modification of the through-hole, (b) is a through-hole. It is the schematic diagram which showed the 4th modification.

  Hereinafter, a support leg and a double floor facility for a double floor according to an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the double floor facility W of the present embodiment is a support leg separation type double floor facility, and is laid on the support leg 1 installed on the foundation floor surface B and the support leg 1. And a floor panel P.
Specifically, the double floor facility W is configured by arranging a plurality of support legs 1 at a predetermined interval on the foundation floor B, and laying a plurality of floor panels P on the support legs 1. The floor panel P is supported by the support legs 1 at a predetermined height from the base floor surface B. With this configuration, a wiring path space with a predetermined interval is formed between the lower surface of the floor panel P and the base floor surface B, and wiring (LAN cable, telephone line, power cord, etc. wiring) etc. is made using this wiring space. Can be laid.

The floor panel P is fixed to the core material 100 made of a substantially rectangular plate-like body in plan view, the steel plate 110a fixed to the lower surface side of the core material 100 with an adhesive or the like, and the upper surface side of the core material 100 with an adhesive or the like. Steel plate 110b (see FIG. 1B). Further, insertion holes 111 through which fixing bolts for fixing to the support legs 1 can be inserted are formed in the four corners and the vicinity of the floor panel P, and wiring drawing recesses 112 are formed on two adjacent sides in a plan view. Is formed.
In addition, the side part of the floor panel P has a shape corresponding to the protrusion 32c of the spacer part 32 of the support leg 1 to be described later. Specifically, on the side surface portion of the floor panel P, there are an upper hanging surface 113 that hangs downward from the upper surface of the floor panel P, an inclined surface 114 that bends the lower end of the upper hanging surface 113 in an inclined manner, A lower drooping surface 115 that hangs downward from the lower end of the surface 114 is formed (see FIG. 1B).

  As shown in FIGS. 1 to 3, the support leg 1 that supports the floor panel P includes a base portion 10 that is installed on the foundation floor surface B, and a column that includes bolts (dimension bolts) that are erected from the base portion 10. 20 and a panel receiving portion 30 installed on the upper end side of the support column 20. In addition, the support | pillar 20 has the external thread 20a formed in the outer periphery. Hereinafter, each structure of the support leg 1 is demonstrated sequentially.

First, the structure of the panel receiving part 30 is demonstrated.
The panel receiving portion 30 is disposed on the spacer portion 32 by being attached to the adjustment portion 31 that is attached to the support column 20 so that the height can be adjusted, the resin spacer portion 32 that is placed on the adjustment portion 31, and the spacer portion 32. A buffer material 33 and a locking nut 34 are provided.

  Further, as shown in FIG. 2, the adjusting portion 31 is formed in a substantially rectangular shape in plan view, with a base portion 31 a chamfered at four corners and a concave portion formed in a substantially central portion of the base portion 31 a. A nut storage portion 31b that can be disposed, a height adjustment nut 31c that is caulked and joined to the bottom surface of the nut storage portion 31b, and a hole that is drilled in the vicinity of substantially the center of each of the four sides of the base portion 31a. It comprises a hole (not shown) in which a female screw that can be fixed by screwing a bolt is cut, and a reinforcing rib 31d formed on the side surface of the nut housing 31b (reinforcing rib 31). Is formed to bulge outward in the four corner directions of the base 31a).

  Moreover, the adjustment part 31 of the said structure can be attached to the support | pillar 20 as follows. Specifically, the height adjustment nut 31 c is inserted into the support column 20 and rotated to adjust the height of the adjustment unit 31 with respect to the support column 20. And if the height of the adjustment part 31 with respect to the support | pillar 20 is adjusted, the locking nut 34 will be screwed (or tightened) to the support | pillar 20 from upper direction, and it will accommodate in the nut storage part 31b after that. As described above, by attaching the adjusting unit 31 to the support column 20 (that is, by a double nut), an effect of preventing loosening against vibration and treading pressure can be obtained.

  In addition, the spacer portion 32 mounted on the base portion 31a of the adjustment portion 31 includes a base portion 32a having a substantially square shape in plan view and having four corners chamfered, a hanging surface 32b extending downward from the periphery of the base portion 32a, and a base portion 32a. A projecting portion 32c formed by projecting upward in the vicinity of the four corners of the upper surface, an opening portion 32d (see FIG. 1 (a)) that is drilled substantially in the center of the base portion 32a and can be attached with a locking nut. A hole 32e (see FIG. 1 (a)) that is drilled at a position corresponding to the hole 31 and through which a fixing bolt can be inserted, and a locking portion formed at the lower end of the drooping surface 32b at the center of the four sides of the base 32a. (Not shown). In addition, the said latching | locking part is comprised so that latching to the four sides of the base 31a of the adjustment part 31 is possible. The spacer portion 32 is integrated with the adjusting portion 31 by locking the locking portion to the base portion 31 a of the adjusting portion 31.

  Further, as shown in FIG. 2, the protruding portion 32c is composed of a vertical portion 32c1 extending upward from the base portion 32a in a front view and a mountain-shaped portion 32c2 protruding in a mountain shape at the top of the vertical portion. The front and rear surfaces in front view are closed and a reinforcing piece (not shown) is formed at a substantially central position in the front and rear direction. The protrusion 32 is used for positioning the floor panel P when the floor panel P is laid on the support leg 1 (the floor panel P is brought into contact with the protrusion 32 by bringing a part of the peripheral surface of the floor panel P into contact with the protrusion 32. Can be positioned). Note that the base portion 31a of the adjustment portion 31 and the base portion 32a of the spacer portion 32 are both substantially rectangular in plan view, and thus do not need to be provided with a mutual rotation stopper.

  Moreover, the buffer material 33 is affixed on the location except the opening part 32d on the base part 32a of the spacer part 32, the protrusion part 32c, and the hole 32e, and prevents generation | occurrence | production of the sound at the time of a walk, a vibration, etc. The material of the buffer material 33 is appropriate, such as a nonwoven fabric, rubber, sponge, paper, cloth, resin material, or a combination thereof. Further, the configuration, shape, and the like of the cushioning material 33 are also appropriate. For example, a configuration in which a plurality of protrusions are provided on a flat rubber can be used.

Next, the configuration of the base unit 10 will be described.
As shown in FIG. 4, the base portion 10 has a substantially square plate shape such as a substantially square shape in a plan view and a bottom view, and a notch 11 that serves as a guide for positioning during ink marking is formed at approximately the center of the four sides. Has been. On the bottom surface side of the base portion 10, as shown in FIG. 4 (b), an adhesive pool recess 12 a having a substantially circular shape when viewed from the bottom, and an adhesive pool recess 12 a that extends linearly from the center toward the four corners. An intersecting linear adhesive pool recess 12b is formed.

And when fixing the base part 10 to the foundation floor B, the adhesive agent used for the fixation accumulates in each recessed part 12a, 12b for adhesive pools. The adhesive reservoir recesses 12a and 12b are respectively formed as protrusions 13a and 13b on the upper surface side of the base portion 10 (see FIG. 4A), and are formed by drawing. Furthermore, a plurality of circular holes 14 penetrating the base portion 10 are formed at positions shifted to one side between the linear adhesive reservoir recesses 12b of the base portion 10, and the adhesive is transferred from the holes 14 to the base. By overflowing to the upper surface of the part 10, the fixing of the base part 10 to the foundation floor B can be strengthened by an anchor effect. The hole 14 is also used when the anchor is directly fixed to the foundation floor B even when an adhesive is not used or even when an adhesive is used.
Further, a substantially elliptical shape in which a circular target position is linearly chamfered at a substantially central portion of the base portion 10 (a pair of arcuate portions connecting a pair of opposing linear portions in plan view and both ends of the linear portion) A through hole 15 having a substantially elliptical shape (so-called “race track shape”) is formed. The column 20 is erected from the base portion 10 by caulking a column 20 to be described later into the through hole 15.

Next, the structure of the support | pillar 20 is demonstrated.
As shown in FIG. 5, the support column 20 is a bolt (dimension bolt) having a male screw 20 a on the outer periphery, and has a substantially circular cross-sectional shape. Here, the length dimension “R” of the diameter of the cross-sectional shape of the column 20 is formed to be the same as or slightly longer than the length dimension “a” of the long diameter of the through hole 15 formed in the base portion 10. Has been. That is, the short dimension “b” of the through hole 15 is configured to be surely shorter than the diameter of the cross-sectional shape of the support column 20.

When the support column 20 configured as described above is caulked into the through hole 15 of the base portion 10, the vicinity of the through hole of the base portion 10 and the male screw 20a of the support column 20 are deformed, and the external screw 20a of the support column 20 is recessed. The vicinity of the through hole of the base portion 10 enters the portion and is caulked. At this time, since the degree of penetration of the base portion 10 at the long diameter portion of the through hole 15 and the degree of penetration of the base portion 10 at the short diameter portion of the through hole 15 are different, an external force is applied to the column 20 after caulking. Even if added, there is no possibility that the support column 20 rotates with respect to the base portion 10, and the base portion 10 and the support column 20 are stably fixed over a long period of time.
More specifically, in the long diameter portion of the through hole 15, the deformation of the base portion 10 and the male screw portion 20 a is small and the depth of entry is shallow, whereas in the short diameter portion of the through hole 15, the base portion 10 and The male threaded portion 20a is greatly deformed and enters deeply. That is, in the caulking portion between the support column 20 and the base portion 10, a target portion having a different deformation state and an intrusion state is generated, and thus the support column 20 is difficult to turn. As a result, according to this embodiment, even if an external force is applied after caulking, there is no possibility that the support column 20 rotates with respect to the base unit 10, and the base unit 10 and the support column 20 can be stably and stably for a long time. A fixed support leg 1 is provided.

  Note that the strut 20 has a larger diameter length dimension “R (see FIG. 5)” of the cross-sectional shape than the length dimension “a (see FIG. 4)” of the long diameter of the through hole 15 formed in the base portion 10. Is used, the entire outer shape of the through-hole 15 is smaller than the entire outer shape of the cross-sectional shape of the support column 20. In this case, the support column 20 is caulked to the through hole 15 over the entire periphery thereof, and the support column 20 is more firmly fixed to the base unit 10.

  And the support leg 1 comprised as mentioned above is arrange | positioned on the foundation floor B, and the floor panel P is laid on the support leg 1, and the double floor installation W is constructed | assembled, The panel support of the support leg 1 is carried out. When the height of the portion 30 is adjusted or when the locking nut 34 is tightened, it is possible to prevent the trouble that the column 20 rotates, and the base portion 10 can be stably fixed to the column 20. Maintained.

  As described above, according to the present embodiment, it is not necessary to use the column 20 having a special shape, and the column 20 can be fixed to the base unit 10 with a simple structure at low cost and firmly. It is possible to provide a support leg 1 for a double floor in which the rotation of the column 20 with respect to the floor is prevented. In addition, according to the present embodiment, when the height of the panel receiving portion 30 is adjusted, the support 20 rotates together, preventing a problem that fine adjustment or the like becomes difficult, and the double floor facility W having good workability. Is provided.

<< Modification of Embodiment >>
In addition, this invention is not limited to the said embodiment, A various change is possible within the range of the summary, For example, each modification demonstrated below is also included. In addition, the present invention is a combination of the above-described embodiment with a partial configuration of the following modification, a partial extraction of the above-described embodiment or the configuration of the following modification, or the above-described embodiment. And those obtained by adding a partial configuration of the modified example to the configuration of the modified example, and those obtained by deleting unnecessary portions of the above-described embodiments and modified examples.

  For example, in the description of the above-described embodiment, the floor panel P is obtained by bonding the steel plates 110a and 110b to the upper and lower surfaces of the core material 100. However, the floor panel P may be any type. Good. For example, the floor panel P is a panel of a type in which a steel plate is coated only on its upper surface or lower surface, a resin type, a mortar product, an aluminum die cast product, a hollow type panel in which two steel plates are combined, and this hollow type panel. A filling type panel filled with a filler may also be used. The floor panel P is suitably made of wood, stone or the like. Further, the shape, number, location, size, etc. of the wiring drawing recess 112 of the floor panel P are also appropriate. When a large amount of wiring is drawn out, the wiring with a shape that is greatly cut out as compared with that shown in FIG. A withdrawal recess 112 may be formed.

  In addition, the panel receiving portion 30 of the support leg 1 of the above-described embodiment may have any configuration, and the shapes of the adjusting portion 31, the spacer portion 32, the cushioning material 33, the locking nut 34, and the like, which are the constituent members. The number, presence and absence, etc. are also appropriate.

  Further, the shape, location, number, presence / absence, etc., of the adhesive pool recesses 12a and 12b, the hole 14, and the notch 11 of the base portion 10 are also appropriate.

  Further, as shown in FIG. 6, it is desirable to provide an annular and concave peripheral recess 16 on the bottom surface of the base portion 10 and in the vicinity of the through hole 15. With this configuration, when caulking with the support column 20, even if the support column 20 slightly protrudes downward, it does not rattle. FIG. 6 is a schematic diagram for explaining the peripheral recesses provided in the base portion of the present embodiment.

  The peripheral recess 16 has the same depth as the adhesive pool recesses 12a and 12b (see FIG. 6C), a shallow structure (see FIG. 6B), and a deep structure (see FIG. 6D). However, if the structure is shallow (FIG. 6B), the problem that the base part 10 itself is deformed due to the pressure from the upper part of the floor panel P can be solved. Is preferred. In addition, it is also possible to expect an effect that the adhesive enters the peripheral recess 16 at the time of construction and the caulking portion is more firmly fixed. More specifically, the depth of the peripheral recess 16 is preferably about 1 mm to 0.1 mm, more preferably about 0.4 mm to 0.6 mm.

Further, the through hole 15 of the base portion 10 shown in the above-described embodiment does not have to be a substantially elliptical shape (race track shape) in which a circular target position is chamfered linearly, but a polygon such as a rectangle or a triangle, A perfect oval shape, star shape, etc. are appropriate, and when the support column 20 is caulked, the shape of the peripheral surface of the support column 20 is different from that of the caulking state, that is, any shape different from the cross-sectional shape of the support column 20 It is included in the present invention.
For example, as shown in FIG. 7A, the through hole 15 of the base portion 10 is formed in a shape (rounded square) in which a total of four circular target positions are chamfered linearly, It may be formed in a rectangular shape as shown in b), a square shape as shown in FIG. 8A, or a regular octagon shape as shown in FIG. The same effect as the above-described embodiment can be obtained. Moreover, although the example shown in FIGS. 7 and 8 is formed so that the major axis of the through hole 15 is the same as the outer shape of the support column 20, this is only an example.
7 and 8 are schematic diagrams for explaining a modification of the through hole of the base portion of the present embodiment. In FIGS. 7 and 8, the same reference numerals are given to the configurations corresponding to the configurations of the above-described embodiments for convenience of explanation. 7 and 8, the dotted line indicates the outer shape of the column 20.

  Moreover, although the external shape of the support | pillar 20 is also appropriate, in order to make it respond | correspond to the structure of the adjustment part 31, the circle like embodiment mentioned above is suitable.

  Further, the relationship between the thickness of the base portion 10 and the pitch between the peaks of the male screw 20a of the support column 20 may be any, but preferably the thickness of the base portion 10 is set to the male screw of the support column 20. It is preferable that the pitch is the same as or slightly thicker than the pitch between the peaks of 20a. According to this configuration, the number of penetrations of the base portion 10 into the male screw 20a increases, and the caulking coupling is performed more firmly. Further, wherever the position at which the support column 20 is cut is, there is a crest portion of the male screw 20a of the support column 20 within the thickness of the base portion 10, thereby improving productivity. For example, when the thickness of the base portion 10 is 2 mm to 3 mm, the pitch between the mountain portions of the male screw 20a is preferably about 1 mm to 2.5 mm, and a difference of about 0.5 mm to 1 mm is sufficient. It is.

  The present invention can be used for double floor support legs and double floor equipment.

B ... Foundation floor

W ... Double floor equipment P ... Floor panel 100 ... Core material 110a, 110b ... Steel plate 111 ... Insertion hole 112 ... Recess 113 for wiring drawing ... Upper hanging surface 114 ... Inclined surface 115 ... Lower hanging surface

DESCRIPTION OF SYMBOLS 1 ... Supporting leg 10 ... Base part 11 ... Notch (base part)
12a, 12b ... Recess for adhesive pool (base part)
13a, 13b ... convex portion (base portion)
14 ... Hole (base part)
15 ... Through hole (base part)
16 ... Peripheral recess (base part)
20 ... Post 20a ... Male screw (post)
30 ... Panel receiving portion 31 ... Adjusting portion (panel receiving portion)
31a ... Base (panel receiving part)
31b ... Storage part (panel receiving part)
31c ... Height adjustment nut (panel receiving part)
31d: Reinforcing rib (panel receiving part)
32 ... Spacer part (panel receiving part)
32a ... Base (panel receiving part)
32b ... bottom surface (panel receiving part)
32c ... Projection (panel receiving part)
32c1 ... vertical part (panel receiving part)
32c2 ... Mountain-shaped part (panel receiving part)
32d ... Opening (panel receiving part)
32e ... hole (panel receiving part)
33 ... cushioning material (panel receiving part)
34 ... Slack stopper nut (panel receiving part)

Claims (7)

A support leg for a double floor provided with a panel receiving part for supporting a floor panel in a state in which the height can be adjusted to a support column installed on a base part installed on a base floor surface,
The support column is composed of a bolt provided with a male screw on the outer periphery,
In the base portion, a through hole having a shape different from the cross-sectional shape of the support column is formed,
By pushing the support column into the through hole, the external thread of the support column and the vicinity of the through hole of the base unit are caulked so that the support column is fixed to the base unit. Support legs for heavy floors. The column has a circular cross-sectional shape,
The two through holes according to claim 1, wherein the through hole is formed in a substantially elliptical shape having a pair of opposing linear portions and a pair of arc portions connecting both ends of the linear portions in plan view. Support legs for heavy floors.   3. A support leg for a double floor according to claim 2, wherein the length of the diameter of the cross-sectional shape of the support column is the same as or slightly larger than the length of the long diameter of the through hole. All the outer shapes of the through holes are smaller than all the outer shapes of the cross-sectional shape of the support column,
The support leg for a double floor according to claim 1 or 2, wherein the support column is caulked to the through hole over the entire circumference thereof.   The support leg for a double floor according to any one of claims 1 to 4, wherein a peripheral concave portion is formed in the vicinity of the through hole on the back surface of the base portion.   A concave portion for the adhesive pool is provided in a portion other than the peripheral concave portion on the back surface of the base portion, and the depth dimension of the concave portion for the adhesive pool is larger than the depth dimension of the peripheral concave section. The support leg for a double floor according to claim 5.   A plurality of support legs for double floors according to claim 1, wherein a plurality of support legs are arranged on a basic floor surface, and a floor panel is placed on a panel receiving portion of the support legs. Double floor facility to do.

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