JPH0649742Y2 - Floor support - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a floor support for elastically supporting a floor member such as a floor joist in a high-rise building such as a condominium in a height-adjustable manner.

(Conventional technology and its problems) Conventionally, in middle- and high-rise buildings such as condominiums, the impact force due to walking or jumping on the floor is transmitted to the floor slab such as concrete slab through the floor joists, and the floor impacts downstairs. There was a problem that it was easy to convey the sound.

In addition, since the concrete floor base is uneven, it is necessary to adjust the height when constructing a floor assembly on such a floor base.

Therefore, conventionally, as shown in FIG. 4, a bolt body (4) having a rubber elastic body (3) is erected between a floor base (1) and a floor member (2) such as a floor joist, and a nut is installed. The floor member has been supported by interposing a floor support tool (6) whose height is adjusted by the body (5).

The support tool (6) includes a bolt body (4) and a nut body (5).
The height of the floor is adjusted by screwing, and the impact force on the floor is absorbed and relaxed by the elastic body (3) provided under the bolt body (4), and the impact force is transmitted to the floor base (1). Is reduced, which has the effect of reducing the impact sound emission to the downstairs.

On the other hand, if the support (6) is installed without being fixed to the floor base (1), the rubber elastic body (3) will be compressed and restored to cause a reaction to the upper floor member. It is necessary to fix the pedestal, and therefore the pedestal (7) such as a metal plate is integrally fixed to the floor base.

However, the pedestal (7) such as a metal plate is used as the floor base (1).
There is a problem that the metal pedestal is apt to generate a collision sound with the floor base while being poorly adhered to.

As a solution to the above problem, there is one in which an elastic sheet (not shown) is attached to the lower surface of the pedestal to prevent the collision noise between the pedestal and the floor base, but the bolt body (4) supporting the floor member is When a large floor impact force is applied, the impact force concentrates on the central portion of the pedestal (7), so that the central portion of the pedestal is bent and deformed on the elastic sheet, and the impact force is locally applied via the pedestal. Therefore, it was not possible to obtain sufficient soundproofing effect against a large floor impact force.

(Purpose of the Invention) The present invention has been made in view of the above-mentioned conventional problems, and the height of floor joists and the like can be freely adjusted, and even if an impact force acts on the bolt body, vibration to the floor base is generated. It is intended to provide a floor support having excellent soundproof properties with less transmission.

In order to achieve the above object, the present invention provides a floor support in which a bolt body is erected via a rubber elastic body on a pedestal having a fixing portion fixed to a floor base, A floor support characterized in that an opening of an appropriate shape is provided in the center of the pedestal, and the rubber elastic body extends continuously from the opening of the pedestal to the lower surface of the pedestal and is integrated with the pedestal. .

Therefore, according to the present invention, since the opening is provided at the center of the pedestal, even if a large floor impact force is applied to the upper bolt body, the impact force on the bolt body is not affected. It will be absorbed by the rubber elastic body of the opening of, and will not directly act on the pedestal.

Further, since the rubber elastic body continuously extends from the opening to the lower surface of the pedestal and is integrated, if the pedestal is fixed to the floor base, the extending portion of the rubber elastic body between the lower surface of the pedestal and the surface of the floor base. The vibration is prevented from being transmitted from the pedestal through the interposition of.

Further, since the extending portion of the rubber elastic body is continuously integrated from the opening portion of the pedestal to the lower surface of the pedestal, the rubber elastic body is integrated around the opening portion of the pedestal in a state of being sandwiched from above and below, It is difficult to separate the pedestal and the rubber elastic body.

(Embodiment) Hereinafter, the present invention will be described with reference to the drawings showing an embodiment thereof.

FIG. 1 and FIG. 2 show an embodiment of the floor support (10) of the present invention, in which the lower surface of a cylindrical rubber elastic body (11) having a rubber altitude of 45 degrees, a height of 15 mm and a diameter of 35 mm, A disc-shaped metal pedestal (12) having a larger outer circumference than the rubber elastic body (11) is provided, and a circular opening (13) having a diameter of 15 mm is provided at the center of the pedestal. A rubber elastic body (11) having a thickness of about 1 mm is continuously extended from the opening (13) so as to cover the entire lower surface of the pedestal.

The extension portion (11a) of the rubber elastic body is preferably provided with a thickness of 0.5 mm or more from the viewpoint of the adhesion to the floor base and the vibration absorption.

The pedestal (12) is provided with a fixing portion that is fixed to the floor base so that it can be fixed to the floor base with an anchor or a screw. In this embodiment, the pedestal (12) is provided with two fixing parts (14a) (14a) with holes for inserting anchors and two non-hole fixing parts (14b) (14b) for driving screws, respectively. It is formed so as to be compatible with both fixing by and screw fixing. The shape of the pedestal (12) is
It is needless to say that the shape is not limited to the one shown in the figure, and that an appropriate shape can be adopted.

Further, a bolt body (15) is erected on the upper surface of the rubber elastic body (11), and the metal receiving plate (1) is attached to the bolt body (15).
6) A pair of upper and lower nut bodies (17a) (17b) sandwiching (16)
Are screwed together.

Therefore, as shown in FIG. 3, the pedestal (12) is fixed to the floor base (1) with a fixture (20) such as an anchor, and the lower nut body (17b) is screwed to the nut body (17b) to raise its height. The height of the floor member (2) can be adjusted horizontally by adjusting the height and fitting the floor member (2) such as a floor joist or base panel to the bolt body (15).

At this time, the opening (13) of the pedestal (12) is located immediately below the bolt body (15), and the impact force on the bolt body (15) is applied to the rubber through the opening. It acts only on the elastic body (11) and is absorbed between the elastic body (11) and the floor base.

Further, on the lower surface of the fixed portion of the pedestal (12), the above-mentioned opening (13)
Since the extending portion (11a) of the rubber elastic body extending from the base is integrally provided, it is possible to prevent vibration of floor joists or the like from being transmitted from the lower surface of the pedestal to the floor base (1).

In addition, the extension portion (11a) of the rubber elastic body (11a) uses the opening (13) of the pedestal to reach the lower surface of the fixed portion of the pedestal when the rubber elastic body (11) on the pedestal is molded. Since part of () can be extended and integrally molded, there is no need to separately attach it to the lower surface of the pedestal, which facilitates manufacturing.

(Effect of the Invention) As described above, according to the present invention, since the impact force to the bolt body acts only on the rubber elastic body at the opening of the pedestal and is not directly transmitted to the fixed portion of the pedestal, it is large. Even if a floor impact force is applied, it becomes difficult for the impact force to be transmitted from the pedestal, and the floor impact noise can be reduced, thus providing soundproof performance.

Further, since the elastic body continuously extends from the opening to the lower surface of the pedestal and is integrated, vibration transmission between the lower surface of the pedestal and the surface of the floor base is small.

Further, since the extending portion of the rubber elastic body is continuously integrated from the opening of the pedestal to the lower surface of the pedestal, the pedestal and the rubber elastic body are hard to be integrated and separated.

Moreover, since the extension portion of the rubber elastic body can be integrally molded by extending the rubber elastic body on the pedestal from the opening to the lower surface of the pedestal, there is no need to attach the pedestal and the manufacturing is easy. Have.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the floor support of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a floor support of the present invention. FIG. 4 is a partial sectional view showing a supported state of a floor joist using FIG. 4, and FIG. 4 is a partial sectional view showing a supported state of a conventional floor support. 10 ... Floor support, 11 ... Rubber elastic body, 11a ... Extension part, 12 ... Pedestal, 13 ... Opening part, 15 ... Bolt body

Claims (1)

[Scope of utility model registration request] 1. A floor support in which a bolt body is erected on a pedestal having a fixing portion fixed to a floor base through a rubber elastic body, and an opening having an appropriate shape in the central portion of the pedestal. Is provided, and the rubber elastic body extends continuously from the opening of the pedestal to the lower surface of the pedestal and is integrated with the pedestal.