JPH0540483U - Double floor support leg - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a support leg for a double floor capable of solving all of the above-mentioned problems by making the panel pedestal level without tilting the base plate up and down. [Structure] A horizontal leveling mechanism A for horizontally adjusting the panel pedestal 2a is provided between a base plate 1 fixed to a base floor X and a support leg 2 having a panel pedestal 2a. A is a projecting piece provided integrally with the support leg 2 by opening several screw shaft portions 1a projecting upward from the base plate 1 and a stupid hole 2c through which the screw shaft portion 1a is inserted. 2b and a pair of upper and lower nut portions 3 and 3 which are respectively screwed into the screw shaft portion 1a and sandwich the projecting piece portion 2b.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a double-floor support leg that forms a floating floor for installing electronic computers, office automation equipment, and the like.

[0002]

[Prior Art]

 Since there is a slight undulation on the foundation floor where the support legs for the double floor are fixed, if the lower end of the support legs is directly fixed to the foundation floor, the floating will tilt due to the undulation and the levelness will be reduced. Does not appear. Therefore, conventionally, as shown in FIG. 4, several support bolts 11 protruding from the base plate 1 and contacting the lower end of the base floor X are screwed into the base plate 1 at the lower end of the support leg 10 so as to be vertically movable. By operating the support bolt 11 from above, the base plate 1 at the lower end of the support leg is moved up and down along the bolt screw shaft portion 11a that rotates about the point of contact with the foundation floor surface X as a fulcrum to absorb the undulation, and the floating floor B Since the entire surface of the base plate 1 does not evenly contact the foundation floor surface X evenly and creates an unstable state where it partially floats up, the base plate 1 portion that floats up and the foundation floor surface X A larger amount of adhesive material 100 'is filled between them and the other parts, and the base plate 1 is fixed to the foundation floor surface X with anchor bolts 200 or the like to stabilize the fixing.

[0003]

[Problems to be solved by the device]

 However, in the type in which the base plate 1 absorbs the undulations of the foundation floor surface X as in the prior art, the adhesive layer 100 becomes thicker in part as the undulations become more severe, and the adhesive strength decreases, or when the anchor bolts 200 are fastened. 1 is liable to be deformed, the reliability of seismic strength and mechanical strength is poor, and the base plate 1 itself tilts. The center position is displaced with respect to the fixing index (not shown), which requires troublesome correction work separately, and further, the adhesive strength decreases when the adhesive layer 100 becomes thicker. Therefore, the correction amount (tilt amount) of the base plate 1 when setting the horizontal level cannot be used for a foundation floor surface with large undulations, and there is a problem in the usage range that the construction site is restricted. is there.

The present invention has been made in view of the above-mentioned conventional circumstances, and an object of the present invention is to make the panel pedestal level without tilting the base plate vertically. It is to provide a support leg for a double floor that can solve all of the above.

[0005]

[Means for Solving the Problems]

 The technical means taken to achieve the above-mentioned object is, in claim 1, a horizontal leveling mechanism for horizontally adjusting the panel pedestal between the base plate fixed to the foundation floor and the supporting leg portion having the panel pedestal. The horizontal leveling mechanism is provided integrally with the support leg by forming several screw shafts projecting upward from the base plate and stupid holes through which the screw shafts are inserted. The gist is that it is composed of a protruding piece portion and a pair of upper and lower nut portions that are respectively screwed into the screw shaft portion and sandwich the protruding piece portion. According to a second aspect of the present invention, the horizontal leveling mechanism of the first aspect is formed on the surface portion of the base plate, the bolt head is rotatably loosely fitted, and the boss hole through which the bolt screw shaft portion is inserted is formed on the upper surface wall portion. The gist of the invention is that it is composed of several open bolt receiving parts and screw holes that are respectively screwed into the bolt screw shaft parts and projecting parts that are integrally provided on the support leg part. .. According to a third aspect of the present invention, the horizontal leveling mechanism according to the first aspect includes a plurality of screw shaft portions projecting upward from the base plate and a stupid hole through which the supporting leg portions are fixed and penetrated. It is formed by a projecting piece that has a hole, a nut part that is screwed onto the screw shaft part and located on the projecting part, a lower end of the support leg and a base plate part to which the lower end corresponds. It is essential that the pressure receiving portion has a downward curved shape that is in surface contact with the pressure receiving portion.

[0006]

[Action]

 According to the above technical means, the following effects are exhibited. (Claim 1) The lower nut portion screwed to the screw shaft portion projecting from the base plate fixed to the foundation floor is rotated to dispose the projecting piece portion between the screw shaft portion and the stupid hole which it owns. By tilting up and down using the play of, the levelness of the panel pedestal of the support leg is achieved. (Claim 2) A head (bolt head) is rotatably fitted in a bolt accommodating portion formed on a base plate fixed to the foundation floor, and is screwed from a stupid hole in an upper wall of the accommodating portion. By rotating the screw shaft part (bolt screw shaft part) of the bolt through which the shaft part (bolt screw shaft part) is inserted, the bolt can be moved within the play range of the stupid hole or within the play range of the bolt housing part. While the head rotates and tilts, the projecting piece on the lower part of the support leg, which is screwed into the same screw shaft, is tilted up and down to level the panel pedestal. (Claim 3) A vertically-corrected support with the base plate fixed to the foundation floor. The lower end portion of the leg portion and the corresponding base frame portion are brought into surface contact with each other to form a downward curved pressure receiving portion. , The nut portion that is screwed into the screw shaft portion that protrudes from the base plate, presses the protruding piece portion that is fixed in the support leg penetrating shape toward the base frame side to increase the surface contact force of the pressure receiving portion, As a result, the support legs are held vertically and the panel base is leveled.

[0007]

[Effect of the device]

 Since the present invention is the double-floor support leg configured as described above, the flatness of the panel pedestal can be obtained without absorbing the ups and downs of the foundation floor with the base plate. Therefore, use more adhesive than necessary to block the space between the base plate and the foundation floor, resulting in deterioration of the adhesive strength, or any deformation such as deformation of the base frame when fastening with anchor bolts. It is possible to increase the seismic strength and mechanical strength without fear of occurrence. In addition, since the support leg is tilted vertically with the center position above the center of the base plate as the lower end, it may cause a positional deviation with respect to a fixing index such as a marking line that is pre-wired on the foundation floor. Since it does not require any correction processing, it can contribute to the simplification of horizontal leveling work. In addition, since it is possible to use the optimum amount of adhesive material for fixing the base plate, it is possible to maintain the seismic resistance and mechanical strength above a certain level with confidence even on a rugged foundation floor and use it. There is no restriction on the place.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1, FIG. 2 and FIG. 3 show respective embodiments of claim 1, claim 2 and claim 3. First, it demonstrates based on FIG.

In FIG. 1, reference numeral 1 is a base plate, 2 is a supporting leg portion having a panel pedestal 2 a, and A is a horizontal leveling mechanism provided between the base plate 1 and the supporting leg portion 2.

The base plate 1 has a rectangular shape in a plan view, and the head is fixed to four symmetrical positions such as four corners with the support leg 2 as the center by welding or the like to fix the screw shaft portion ( In the description below, a first screw shaft portion 1a) is provided so as to project upward.

The support leg 2 has a tubular shape, and has a panel pedestal 2 a that is screwed so as to be able to move up and down, at the upper end, and a flange-shaped protrusion 2 b is integrally fixed to the lower end.

As shown in FIG. 1, the horizontal leveling mechanism A has a hole formed in the first screw shaft portion 1a and the projecting piece portion 2b, and is a stupid hole (which will be described later) through which the first screw shaft portion 1a is inserted. 2c, and a pair of upper and lower nut portions 3 and 3 which are respectively screwed into the first screw shaft portion 1a and sandwich the projecting piece portion 2b.

Of the pair of upper and lower nut portions 3, 3, a petal-shaped continuous operating protrusion 3 a is integrated with the lower nut portion 3 so as to project from the outer periphery.

When the panel pedestal of the double-floor support leg of this embodiment is leveled horizontally, first, the base plate 1 is attached to a predetermined position on the base floor surface X via the adhesive layer 100, and then, Fix with anchor bolts or other means (not shown) to be placed. Next, the lower nut portion 3 having the continuous operating protrusion 3a is screwed onto the first screw shaft portion 1a, and the second screw shaft portion 1a is inserted into the first dowel hole 2c to project the protruding piece portion. 2b is set on the lower nut portion 3. In this state, the lower nut portion 3 is rotated by using the operation continuous protrusion 3a to tilt the panel pedestal 2a by a desired angle so as to absorb the ups and downs of the foundation floor X, and the panel pedestal 2a The level of the panel pedestal 2a is leveled with a level (not shown), and finally the upper nut part 3 is lowered along the first screw shaft part 1a. The support leg 2 is fixed so as not to loosen by sandwiching the protruding piece 2b.

The feature of this embodiment is that no special structure other than bolts and nuts is adopted, and a simple structure is sufficient.

Referring to FIG. 2, reference numeral 1 is a base plate, 2 is a supporting leg portion having a panel pedestal (not shown), and A is a horizontal leveling provided between the base plate 1 and the supporting leg portion 2. It is a mechanism.

The base plate 1 has a quadrangular shape in a plan view, and the head 4a of the bolt 4 is rotatably loosely fitted at four positions such as four corners which are symmetrical with each other with the support leg 2 interposed therebetween. 1b is formed.

The bolt accommodating portion 1 b has a metallic hat body 1 b ′ having a concave portion 1 b ″ having a volume slightly larger than the rotation locus of the outer peripheral surface of the bolt head 4 a of the bolt 4, and the surface of the hat body 1 b is covered by the base plate 1. A fool hole (hereinafter referred to as a second fool hole) 5 which is formed by fixing with a desired means such as welding so that the bolt screw shaft portion 4b of the bolt 4 is inserted into the upper surface wall portion 1b-1. It is open.

Reference numeral 6 is a small through hole formed in the base plate 1 so as to communicate with the recess 1b ″ of the bolt accommodating portion 1b. The small through hole 6 is formed in the central portion of the base plate 1 facing the recess 1b ″. Four protrusions 8 are formed in front, rear, left, and right, leaving the cross-shaped wall 7, and a protrusion 8 that makes point contact with the center of the head 4a of the bolt 4 is formed on the inner surface of the recess 1b ″ at the intersection of the cross-shaped wall 7. There is.

The support leg portion 2 has a tubular shape, and has a panel pedestal (not shown) screwed to move up and down like the above-described embodiment at the upper end portion, and has a brim-shaped protrusion 2b at the lower end portion. Are fixed together.

As shown in FIG. 2, the horizontal leveling mechanism A rotates the bolt accommodating portion 1b in which the second stair hole 5 is opened in the upper surface wall portion 1b-1 and the bolt head 4a into the bolt accommodating portion 1b. The projecting piece which is loosely fitted as much as possible and has the bolt screw shaft portion 4b inserted through the second stag hole 5 of the upper surface wall portion 1b-1 of the bolt housing portion 1b and the lower end of the supporting leg portion 2 are integrated. The screw hole 2d is formed in the portion 2b and is screwed into the bolt screw shaft portion 4b.

Reference numeral 4b 'is a tool insertion groove provided at the tip of the screw shaft portion 4b.

Then, in order to obtain the horizontal level of the double floor support leg of this embodiment, a predetermined tool (driver or the like) is inserted into the tool insertion groove 4b 'and the bolt 4 is rotated. That is, as the bolt head 4a rotates by making point contact with the protrusion 8 in the bolt accommodating portion 1b, the bolt screw shaft portion 4b makes use of the play range in the second fool hole 5 and the concave portion 1b ″. While tilting, the projecting piece 2b is tilted up and down to bring out the horizontality of the panel pedestal (not shown). Of course, a level (not shown) is used as in the above embodiment. The bolt screw shaft portion 4b tilts within a range of an inverted triangular pyramid locus in which the bolt head 4a comes into contact with the recess 1b ″ wall of the bolt housing portion 1b or the hole edge of the second fool hole 5 to make tilting impossible. it can. Finally, as in the case of the above-mentioned embodiment, the base plate 1 is attached to a predetermined portion of the foundation floor surface X via the adhesive layer 100 and then fixed by means of anchor bolts or the like (not shown) to be placed.

The feature of this embodiment is that a part of the adhesive layer 100 flows into the bolt accommodating portion 1b through the small through hole 6 and solidifies, so that the horizontal level adjustment is performed without operating a fixing tool such as a nut. That is, the bolt 4 can be stably fixed, and the workability is improved.

In the embodiment, the small through hole 6 is not opened in the base plate 1, and the adhesive is filled into the recessed portion 1b ″ from the second silly hole 5 after the horizontal level is taken out so that the bolt 4 cannot be rotated. In this case, the leveling work can be carried out with the base plate 1 fixed to the foundation floor X as in the case of the above embodiment.

The embodiment shown in FIG. 3 is a modification of the embodiment shown in FIG. 1, and reference numeral 1 is a screw shaft portion (hereinafter referred to as a third screw shaft portion) 1c by fixing the lower end by means such as welding. A base plate 2 having a rectangular shape in a plan view provided so as to project upward, and 2 is a support leg portion having a panel pedestal (not shown) at the upper end portion which is screwed so as to be capable of moving up and down similarly to the above embodiment, A Is a horizontal leveling mechanism.

As shown in FIG. 3, the horizontal leveling mechanism A has the third screw shaft portion 1 c protruding upward from the base plate 1 and the support leg portion 2 fixed in a penetrating manner, and the third screw shaft portion 1 described above. The projecting piece 2b having a stupid hole (hereinafter referred to as a third stupid hole) 2e through which c is inserted, and the projecting piece 2b screwed into the third screw shaft portion 1c and positioned on the projecting piece 2b. Similarly to the example, the downwardly curved pressure receiving member is formed by the nut portion 3 having the operation continuous protrusion 3a, the lower end portion of the support leg portion 2 and the corresponding base plate 1 portion, and the surface contacting each other. It is composed of part 9 and

The pressure receiving portion 9 has a semi-circular shape at the lower end of the supporting leg portion 2 protruding from the projecting piece portion 2b so that the lower end of the supporting leg portion 2 is in surface contact with the corresponding base plate 1. It is formed by recessing in a semicircle.

In the double-floor support leg of this embodiment, first, similarly to the above-mentioned embodiment, the base plate 1 is attached to a predetermined portion of the foundation floor surface X via the adhesive layer 100, and then an anchor bolt or the like is placed. It is fixed by the means (not shown). Next, the third screw shaft portion 1c is inserted into the third sille hole 2e of the projecting piece portion 2b, and the lower end portion of the supporting leg portion 2 and the corresponding base frame are utilized by utilizing the play range of the third sille hole 2e. The support leg 2 is corrected to a vertical shape in a state in which the pressure receiving portion 9 having a downward curved shape is formed by making surface contact with one portion. Then, with the nut portion 3 screwed onto the third screw shaft portion 1c protruding from the base plate 1, the projecting piece portion 2b fixed in a penetrating manner to the support leg portion 2 is uniformly pressed toward the base frame 1 side. The abutting force of the pressure receiving portion 9 is increased, thereby holding the support leg portion 2 in the vertical state, and leveling the panel pedestal (not shown).

The feature of this embodiment is that, as in the embodiment shown in FIGS. 1 and 2, the supporting leg portion 2 is forcibly tilted up and down by the rotating force of the nut portion 3 and the rotating force of the bolt screw shaft portion 4b. It is possible to perform leveling without being subject to screwing resistance as in the case of objects and to improve workability.

In all of the above-mentioned embodiments, the pedestal type supporting legs are shown as clearly shown in the drawings, but the present invention is not limited to this.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of claim 1 with a part cut away.

FIG. 2 is a partially sectional front view showing a main part of an embodiment of claim 2;

FIG. 3 is a partial cross-sectional view showing a front view of a main part of an embodiment of claim 3;

FIG. 4 is a front view showing a usage state of a conventional example, with a part thereof shown in section.

[Explanation of symbols]

1: Base plate 2: Support leg 2a: Panel pedestal A: Horizontal leveling mechanism 1a: Screw shaft part (first screw shaft part) 2b: Projection piece 2c: Stupid hole (first stupid hole) 3, 3: Vertical Pair of nut parts 4: Bolt 4a: Bolt head 4b: Bolt screw shaft part 5: Stupid hole (second stupid hole) 2d: Screw hole 1b: Bolt accommodating part 1c: Screw shaft part (third screw shaft part) 2e : Stupid hole (No. 3 stupid hole) 9: Pressure receiving part X: Foundation floor

Claims (3)

[Scope of utility model registration request] 1. A horizontal leveling mechanism for horizontally adjusting the panel pedestal is provided between a base plate fixed to a foundation floor and a supporting leg portion having the panel pedestal. Several screw shafts projecting upward from the base plate, stupid holes through which the screw shafts are inserted are formed, and a projecting piece integrally provided on the support leg, and the screw shafts are respectively screwed. A support leg for a double floor, which is composed of a pair of upper and lower nut portions that sandwich the protruding piece portion together. 2. The horizontal leveling mechanism is formed on a surface portion of a base plate, a bolt head is rotatably fitted therein, and several stupid holes through which a bolt screw shaft portion is inserted are formed in an upper surface wall portion. 2. The bolt accommodating portion according to claim 1, and a screw hole that is screwed into the bolt screw shaft portion, and a projecting piece portion that is integrally provided on the support leg portion. Support legs for double floor. 3. The horizontal leveling mechanism has a plurality of screw shaft portions projecting upward from the base plate and a supporting leg portion fixed in a penetrating manner, and a stupid hole through which the screw shaft portion is inserted. The protruding piece portion, the nut portion screwed onto the screw shaft portion and positioned on the protruding piece portion, the lower end portion of the support leg portion and the base plate portion to which the lower end portion corresponds, and are in surface contact with each other. The support leg for a double floor according to claim 1, wherein the support leg is a downwardly curved pressure receiving portion.