JP4370218B2 - Floor support leg - Google Patents

Description

  The present invention relates to a floor support leg. More specifically, according to the present invention, fixing after height adjustment can be performed easily, quickly and reliably, and the fixing strength can be reliably maintained over a long period of time. The present invention relates to a floor support leg useful as a support leg for a heavy floor.

Conventionally, as a support floor for a double floor, for example, a floor support in which a support plate is attached to an upper end portion of a hollow support bolt that is rotatably provided on a floor-contact base via a level adjusting nut. Legs are known (see, for example, Patent Documents 1 and 2).
JP 2002-81195 A JP 2002-81196 A

  In the floor support legs described in Patent Literatures 1 and 2, after the height adjustment, the hollow support bolt is prevented from rotating by fixing by injecting an adhesive into the hollow portion of the hollow support bolt and curing it. And is constructing.

However, the hollow portion of the hollow supporting bolt takes time to inject adhesive is viscous material, also not injected into intimate throughout hollow portion of the adhesive is hollow supporting bolt, may not be reliably fixed In addition, when used for a long period of time, there is a problem that the adhesive is deteriorated with the passage of time, the fixing strength cannot be maintained, and the durability is poor.

  The present invention has been made to solve such a problem, and can be easily, quickly and surely fixed after height adjustment, and can reliably maintain the fixing strength over a long period of time. Therefore, it is an object of the present invention to provide a floor support leg that is useful as a support leg for a double floor of an apartment or the like.

To achieve the above objective,
The floor support leg according to claim 1 is an inner comprising a male screw tube in which male screws are engraved in the upper and lower parts in a reverse screw shape, and the tip of each male screw part is formed to be expandable. A pipe plate, a floor plate support body in which a female screw pipe engraved on the male screw portion of the upper part of the inner pipe is suspended from the floor plate support plate, and a male screw part of the lower part of the inner pipe A pedestal body that has a female threaded tube with engraved female threads protruding on the pedestal, and a tapered tip that extends through the inner pipe and expands the tips of the upper and lower male threads. And a taper pin at the lower end, screwing the female screw tube of the floor plate support to the upper male screw portion of the inner pipe, and screwing the female screw tube of the base body to the lower male screw portion, By rotating the inner pipe, the floor board support and the pedestal are mutually connected. Adjust the height by approaching or moving away from the inner pipe, insert a taper pin inside the inner pipe, and expand the tip of the upper and lower male screw parts by the tapered tip part at the upper end and the lower end part. It is characterized by preventing and fixing the rotation .

  With this product, the height adjustment can be easily and quickly fixed by one-touch operation of inserting the taper pin, and it is mechanically fixed with the taper pin. Compared with chemical fixing with adhesive (adhesion fixing). Thus, it can be reliably fixed, and there is no risk of deterioration over time when used for a long period of time, the fixing strength can be reliably maintained over a long period of time, and the durability is also good. It is useful as a support leg for double floors in apartments.

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Further, in the floor support leg according to claim 1, since the male screw engraved in a reverse screw shape is formed on the upper and lower parts of the inner pipe, the height of the floor board support and the pedestal can be adjusted quickly and greatly. can do.

Floor supporting leg according to claim 2, Oite in claim 1, to form a slit at the tip of the male threaded portion of the inner pipe, formed by allowing expanded the distal end of the screw portion of the inner pipe.

  In this case, the tip of the male screw portion of the inner pipe can be smoothly and easily expanded and fixed through a slit formed at the tip of the male screw portion of the inner pipe.

Floor supporting leg according to claim 3, Oite to claim 1 or 2, a tapered distal end portion of the taper pin formed in reversed-trapezoid shaped cross-section, along the tapered surface of the reversed-trapezoid shaped cross-section, of the inner pipe The tip of the male screw part can be expanded.

  In this case, the tip of the male thread portion of the inner pipe can be smoothly expanded and fixed along the tapered surface of the tapered tip portion formed in an inverted trapezoidal cross section.

According to a fourth aspect of the present invention , in the floor support leg according to any one of the first to third aspects, a rotating tool locking portion is formed at the upper end portion of the inner pipe.

  With this, the inner pipe can be easily rotated from the floor surface side by rotating by rotating a rotating tool such as a screwdriver to the rotating tool locking portion formed at the upper end of the inner pipe. Can do.

A floor support leg according to a fifth aspect of the present invention is the floor support leg according to the fourth aspect, wherein the rotary tool locking portion is formed by a rotary tool locking protrusion.

  In this case, the turning tool locking portion can be easily formed only by cutting the upper end portion of the inner pipe to form the turning tool locking protrusion.

According to a sixth aspect of the present invention , the floor support leg according to the fourth aspect of the present invention is configured such that the rotating tool locking portion is formed by a rotating tool locking groove.

  In this case, the turning tool locking portion can be easily formed simply by cutting the upper end portion of the inner pipe to form the turning tool locking groove.

  The present invention has the following effects.

  According to the floor support leg according to claim 1, after adjusting the height by rotating the inner pipe, the taper pin is inserted into the inner pipe, and the tip of the male screw portion is formed by the tapered tip. Can be fixed just by preventing the inner pipe from rotating, and by one-touch operation of taper pin insertion, fixing after height adjustment can be done easily and quickly, and by taper pin Because it is mechanically fixed, it can be fixed securely compared to chemical fixing (adhesive fixing) with an adhesive, and there is no risk of deterioration over time for long-term use. Thus, the fixing strength can be reliably maintained over a long period of time, the durability is also good, and it is useful as a support leg for a double floor of an apartment or the like.

Furthermore, according to according to the floor support leg according to claim 1, via the male screw which is engraved on the reverse threaded together the top and bottom of Lee N'napaipu, high one another moved closer or away floorboards support and the base member Therefore, the height can be adjusted quickly and greatly.

According to the floor support leg according to claim 2, in addition to the effects of claim 1, through the slit formed in the front end of the male threaded portion of the inner pipe, the tip of the male threaded portion of the inner pipe smoothly, easily Can be expanded and fixed.

According to the floor support leg according to the third aspect , in addition to the effects of the first and second aspects, along the tapered surface of the tapered tip portion formed in an inverted trapezoidal cross section, the male thread portion of the inner pipe The tip can be smoothly expanded and fixed.

According to the floor support leg according to the fourth aspect , in addition to the effects of the first to third aspects, the rotating tool such as a screwdriver is locked to the rotating tool locking portion formed at the upper end portion of the inner pipe. By rotating it, the inner pipe can be easily rotated from the floor surface side.

According to the floor support legs according to claims 5 and 6 , in addition to the effect of claim 4 , the upper end portion of the inner pipe is subjected to cutting or the like to form the rotating tool locking protrusion or the rotating tool locking groove. Only by doing this, the turning tool locking portion can be easily formed.

  Hereinafter, a floor support leg A according to the present invention will be described with reference to the drawings.

Figure 1 is an exploded perspective view showing the engagement Ru bed supporting leg A in Example of the present invention, FIG. 2 is a縱断view of assembled state to Figure 1.

The floor support leg A is formed with a male threaded portion 11 having a male screw engraved on the upper part, a lower part formed as a non-threaded part 12, and a front end of the male threaded part 11 formed to be expandable. An inner pipe 1 made of a male screw pipe,
A floor plate support 2 formed by suspending a female screw tube 22 in which a female screw 21 to be screwed into the male screw portion 11 of the inner pipe 1 is suspended from a floor plate support plate 23;
A pedestal body 3 formed by protruding a pedestal 32 with a screwless pipe 31 fitted to the screwless portion 12 of the inner pipe 1;
It consists of a taper pin 4 having a tapered tip 41 that penetrates the inside of the inner pipe 1 and expands the tip of the male screw portion 11.

FIG. 3 is an exploded perspective view showing a floor support leg A according to one embodiment of the present invention, and FIG. 4 is a cross-sectional view of the bag in a state where FIG. 3 is assembled.

The floor support leg A is formed with male screw portions 11 and 11 in which male screws are engraved in a reverse screw shape on the upper and lower portions, and the tips of the male screw portions 11 and 11 are formed to be expandable. A floor plate support formed by hanging a female screw tube 22 engraved with an inner pipe 1 composed of a male screw tube and a female screw 21 screwed into the male screw portion 11 on the upper portion of the inner pipe 1 to a floor plate support plate 23. 2 and a pedestal body 3 formed by projecting a female screw pipe 34 engraved with a female screw 33 to be screwed into the male screw portion 11 below the inner pipe 1 on the pedestal 32; The taper pin 4 has tapered tip portions 41 and 42 at the upper end portion and the lower end portion that widen the tips of the upper and lower male screw portions 11.

  In FIGS. 1 and 2, the tapered tip 41 is illustrated only on the upper portion of the taper pin 4. However, the tapered tip 41 is formed only on the lower portion of the taper pin 4. Correspondingly, the male threaded portion 11 is formed at the lower portion of the taper pin 1, the upper portion is the unthreaded portion 12, and the female threaded tube 22 is replaced with a threadless one, and the threadless tube 31 is replaced with a male threaded portion 31. Of course, the screw 21 may be formed.

Hereinafter , FIGS. 3 and 4 showing an embodiment of the present invention will be described in detail.

  The inner pipe 1 is made of a metal pipe or a hard synthetic resin pipe, and male threads 11 and 11 are formed on the outer surfaces of the upper and lower parts by engraving male threads formed in reverse screw shapes. Yes.

  Four slits 13 are formed at the tips of the male screw portions 11 so as to face each other, so that the tips of the male screw portions 11 of the inner pipe 1 can be expanded.

  Here, as a means for enabling the tip of the male screw portion 11 to be expanded, the slit 13 is formed at the tip of the male screw portion 11 as described above, and the tip of the male screw portion 11 is integrally formed and formed separately. For example, it may be formed of an elastic material such as an expandable rubber or an elastic synthetic resin. However, when the slit 13 is formed at the tip of the male screw portion 11, the tip of the male screw portion 11 can be expanded smoothly and easily, which is optimal.

  Further, a rotating tool locking portion 15 is formed at the upper end portion of the inner pipe 1, here the upper end of the upper male screw portion 11.

  The rotating tool locking portion 15 is formed by a rotating tool locking protrusion 14 formed by protruding a pair of protrusions on the upper end of the male screw portion 11, or of the male screw portion 11. It can be formed by a rotating tool locking groove formed by forming a linear groove on the upper end.

  Further, the rotary tool locking groove may also be used as the slit 13 formed in the inner pipe 1. In the illustrated example, the rotary tool locking groove including the rotary tool locking protrusion 14 and the slit 13 is used. Both show the ones attached.

  The floor board support 2 is formed with a hole 21a in the center of a floor board support board 23 formed of a metal plate, a wooden board, a synthetic resin board or the like, and is screwed into the male screw portion 11 on the upper portion of the inner pipe 1 in the hole 21a. A female threaded tube 22 engraved with a female thread 21 is suspended downward.

  Here, an example in which a female screw pipe 22 using a pipe pipe is fixed to a floor board support plate 23 is illustrated. However, when the floor board support body 2 is formed, for example, a hook of the female screw pipe 22 with a hook is used. Even if a floor board support plate 23 made of a plate body such as particle board, fiber board, plywood or wood board is placed on the part and fixed with a fastener such as a screw or a nail, the floor board support body 2 is formed. good.

  As described above, the pedestal 3 is formed by projecting a female screw pipe 34 engraved with a female screw 33 to be screwed into the male screw portion 11 below the inner pipe 1 on the pedestal 32.

  In the case of forming the pedestal 3, for example, a female threaded tube 34 provided with a short rod part 34 a for retaining is formed, and the vicinity of the short rod part 34 a is made of an elastic material such as rubber or elastic synthetic resin. What is necessary is just to embed and form integrally in the cyclic | annular base 32 which becomes.

  Although not shown, a screw is formed at the lower end of the female screw tube 34, and a groove to be screwed into the screw is formed on the inner surface of the base 32. By screwing these, the female screw tube 34 is formed. The pedestal 3 projecting from the pedestal 32 can also be formed.

  The pedestal 32 can be formed even if it is other than the elastic material described above, but an elastic material is preferable because it has a strong viscous resistance when placed on a floor plate such as concrete and is difficult to slip.

  The taper pin 4 has a solid metal rod as a base shaft, and tapered tip portions 41 and 42 for expanding the tips of the upper and lower male screw portions 11 of the inner pipe 1 at the upper end portion and the lower end portion of the base shaft. Formed.

  Specifically, the tapered tip portions 41 and 42 are formed in an inverted trapezoidal shape narrowed downward as shown in the figure, and if the taper pin 4 is inserted into the inner pipe 1, the taper tip portions 41 and 42 are tapered. The tip of the male threaded portion 11 of the inner pipe 1 can be smoothly expanded along the tapered surface of the trapezoidal tip portions 41 and 42 having an inverted trapezoidal cross section.

In this case, a tapered portion 16 (see FIG. 4) that is narrowed toward the lower end edge is formed on the inner surface of the lower end of the inner pipe 1, and the tip of the male screw portion 11 is inserted by insertion of the tapered tip portion 42. Has been expanded.

The shape of the tapered tip 41 and 42, addition to the aforementioned reversed-trapezoid shaped cross-section, sectional inverted triangle, cross rhombic shape, but may form a form a semicircular cross-section or the like. However, when it is formed in an inverted trapezoidal shape, it is optimal because the tip of the male threaded portion 11 of the inner pipe 1 can be smoothly expanded along the tapered surface of the inverted trapezoidal shape.

  The floor support leg A of the present invention configured as described above performs the following actions.

With screwing the female screw tube 22 of the bed plate support 23 to the upper portion of the male screw portion 11 of the inner pipe 1, a female screw tube 3 4 of the base body 3 is screwed into the lower portion of the male screw portion 11, the inner pipe 1 Is rotated to the left or right, the floor board support 2 and the pedestal 3 are moved closer to or away from each other to adjust the height. After the height adjustment is completed at a desired position, Nuki挿Then the taper pin 4 inside the inner pipe 1, the tapered tip portions 41 and 42 of the upper and lower ends, the upper and lower male threaded portion The tips of 11 and 11 are expanded, and the inner pipe 1 is prevented from rotating and fixed.

  According to the floor support leg A according to the present invention as described above, the fixing after the height adjustment can be easily and quickly performed by a one-touch operation of inserting the taper pin 4. Moreover, since it is mechanical fixing by the taper pin 4, it can fix reliably compared with the chemical fixing (adhesion fixing) by the conventional adhesive agent. Moreover, since it is mechanical fixing without using such an adhesive, there is no risk of deterioration over time when used for a long period of time, the fixing strength can be reliably maintained over a long period of time, and durability is also improved. It is good and useful as a support leg for double floors in apartments.

The floor support leg A shown in FIGS. 1 and 2 shown as a reference example of the present invention has a tapered tip at the upper end or the lower end when the taper pin 4 is inserted into the inner pipe 1. The only difference from the above embodiment is that the tip of either the upper or lower male threaded portion 11 is expanded by the portion 41, and is the same in that the rotation of the inner pipe 1 can be prevented and fixed. Therefore, the description is omitted.

  The present invention is capable of simple, quick and reliable fixing after height adjustment, can reliably maintain the fixing strength over a long period of time, has good durability, and supports for double floors such as apartments It can be used effectively as a leg.

It is a disassembled perspective view which shows the floor support leg body A which concerns on the reference example of this invention. FIG. 2 is a cross-sectional view of the heel in a state in which the floor support leg A shown in FIG. 1 is assembled. It is a disassembled perspective view which shows the floor support leg body A which concerns on the Example of this invention. FIG. 4 is a cross-sectional view of the heel in a state where the floor support leg A shown in FIG. 3 is assembled.

A Floor support leg 1 Inner pipe 11 Male threaded portion 12 Unthreaded portion 13 Slit 15 Rotating tool locking portion 2 Floor plate support 21 Female screw 22 Female screw tube 23 Floor plate support plate 3 Base body 3 4 Female screw tube 3 3 Female thread 32 Base 4 Tapered pin 41 , 42 Tapered tip

Claims (6)

An inner pipe made of a male threaded tube formed by engraving male threads in the form of reverse threads on the upper part and the lower part, and forming the tip of each male threaded part so as to be able to expand;
A floor plate support formed by suspending a female screw pipe engraved with a female screw to be screwed into the male screw portion on the upper part of the inner pipe, on the floor plate support plate;
A pedestal body formed by projecting a female screw pipe engraved with a female screw to be screwed into the male screw part at the lower part of the inner pipe on the pedestal;
It consists of a taper pin that has a tapered tip portion that extends through the inside of the inner pipe and widens the tip of the upper and lower male screw portions at the upper end and the lower end,
By screwing the female screw tube of the floor plate support to the male screw portion on the upper part of the inner pipe, and screwing the female screw tube of the base body to the lower male screw portion, and rotating the inner pipe, the floor plate Adjust the height by moving the support and pedestal closer to or away from each other, insert a taper pin into the inner pipe, and connect the upper and lower male threaded portions with the tapered tip at the upper and lower ends. A floor support leg characterized in that its tip is expanded to prevent and fix rotation. In claim 1,
A floor support leg body in which a slit is formed at the tip of the male thread portion of the inner pipe so that the tip of the male thread portion of the inner pipe can be expanded. In claim 1 or 2,
A floor support leg body in which a tapered tip end portion of a taper pin is formed in an inverted trapezoidal cross section, and a front end of a male screw portion of an inner pipe can be expanded along a tapered surface having an inverted trapezoidal cross section shape. In any one of Claims 1-3,
A floor support leg formed by forming a rotating tool locking portion at the upper end of the inner pipe. In claim 4,
A floor support leg formed by forming a rotating tool locking portion with a rotating tool locking protrusion. In claim 4,
A floor support leg formed by forming a rotating tool locking portion with a rotating tool locking groove.

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