JPS631704Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a floor frame for a gymnasium, and particularly to a floor frame suitable for use when tatami mats are laid on the floor as a floor for judo.

The purpose of this invention is to buffer the impact load applied to the floor during judo practice or matches, to elastically support the floor so that it sinks softly, and to make the floor easy to assemble. The objective is to provide a floor frame with a unique configuration.

The floor frame of this invention is constructed as follows in order to achieve the above object.

In other words, a pair of C-shaped steels (channel steel with lips) are placed vertically and substantially parallel to each other and face each other back-to-back, and a coil spring of a predetermined strength is inserted between the two C-shaped steels in the C-shape. A required number of coil springs are installed at a predetermined pitch in the longitudinal direction of the steel, and both ends of the coil springs are connected to each C-beam, thereby connecting the two upper and lower C-beams to form a set of structures.

Therefore, this floor frame can be easily made by inserting joint materials into the grooves of C-shaped steel and joining them to the required length, and by laying a large number of them in parallel at predetermined intervals, and installing floor panels between them. By erecting a tatami mat, a floor structure can be constructed, and by laying tatami mats on top of the tatami mat, the structure will elastically support the floor and be able to withstand impact loads.

Next, an example of this invention will be described.

Figure 1 shows three floor frames 1 according to this invention.
The state immediately before A, 1B, and 1C are joined in series using joint materials 2 and 2 is shown. This is a generic term for the floor frames 1, 1A, 1B, and 1C. same as below)
As shown in the cross section in Figure 2, the length is
Two C-shaped steels 3 and 3', 3500 mm to 4800 mm, with a cross-sectional size of about 100 x 50 mm, are placed vertically parallel to each other, and
The grooves face each other back to back with the grooves opening upward and downward, and the vertical interval H is about 80 mm.
Between the two upper and lower C-shaped steels 3, 3', a large number of compression coil springs 4 of a predetermined strength are installed at pitches of about 900 mm to 1000 mm in the longitudinal direction of the C-shaped steel. That is, bowl-shaped spring receivers 5, 5' are fixed at symmetrical positions on the opposing surfaces of the upper and lower C-shaped steels 3, 3' with bolts, etc., and both ends of the coil spring 4 are inserted into the spring receivers 5, 5. In addition, the upper and lower two C-beams 3 are fixed together by welding or the like, and held together via a coil spring 4.
3' are connected so that they can be handled as a set of structures. In the grooves of the upper and lower C-beams 3 and 3',
A reinforcing plate 6 is fixed to prevent the twisting.

Therefore, the floor frames 1A, 1B, 1C in FIG.
In the groove of each C-beam 3, 3', insert joint material 2, 2, which is a rather small channel-shaped steel and has a length of about 30 cm.
By inserting and connecting with bolts 7 and nuts 8, it can be used as a series of extensions to the required length.

FIG. 4 shows a conceptual diagram of constructing a floor structure for a judo hall in a gymnasium using the floor frame 1 described above.

That is, the floor frames 1, which have been added to the required length (for example, 14 m), are installed parallel to each other in only one direction at a pitch of approximately 900 mm. Wooden panels 9... having a width equal to the pitch of the floor frame 1... are constructed in a row in the longitudinal direction of the floor frame 1, and the crosspieces 9a, 9a on both sides are connected to the upwardly facing lip of the C-shaped steel 3. It is hooked inside (Figure 5).

In addition, in order to ensure the stability of the above-mentioned installation state of the wooden panels 9..., tatami-yose frame corner fittings 10 are installed at the corners of the tatami-yoshi frame, and tatami-yose frame intermediate metal fittings 11 are installed at the middle part. These are joined to the tatami-yose frame 12 and assembled into one frame, and corner tension fittings 13 and intermediate tension fittings 14 are installed at corresponding positions in the laying parts of the wooden panels 9..., and a tape 15 is placed between each. shall be installed.

As shown in FIG. 6, the tatami-yose frame corner fitting 10 has the height as a tatami-yose frame. A plate 10b is fixed to the inner corner of the rectangular tube 10a bent at right angles at the same height as the wooden panel 9.
The connecting slit 10c of the tape 15 is provided in the slit 10c, and the end of the tatami frame 12 is inserted into the hollow part of the rectangular tube 10a and joined.

As shown in FIG. 7, the tatami-yose frame intermediate metal fitting 11 is
A plate 11 is placed at the same height as the wooden panel 9 on the front side of the square tube 11a which has the height as a tatami frame.
b horizontally, and tape 1 is attached to the plate 11b.
5 connecting slits 11c are provided, and the end of the tatami-yosori frame 12 is inserted into the hollow part of the rectangular tube 11a and joined.

As shown in FIG. 8, the corner fitting 13 has a configuration in which a connecting slit 13b is provided on the horizontal surface of a thin angle plate 13a having three right-angled sides, and the two vertical side surfaces are connected to the wooden panel 9...
Insert and install it into the joint gap in the corner part when it is laid.

As shown in FIG. 9, the intermediate tension fitting 14 has a structure in which a connecting slit 14b is provided in a thin plate 14a, and is also inserted into the joint gap of the wooden panels 9.

After pressing down the wooden panels 9... with tape 15..., tatami mats 16 are placed on top of the wooden panels 9...
By laying..., the floor shown in Fig. 5 or Fig. 10 is completed.

Therefore, all of the load applied to the floor is supported through the coil springs 4 of the floor frame 1.

This invention is based on the floor frame having the above-mentioned configuration, and has the following effects.

All of the impact loads applied to the floor are elastically supported by coil springs so that the entire floor sinks softly, providing a buffering effect, making it possible to construct a floor that is ideal for intense exercise such as judo. Using this floor frame makes it extremely easy to assemble the floor.

[Brief explanation of drawings]

Figure 1 is a perspective view of the floor frame according to this invention;
Figures 2 and 3 are cross-sectional views taken along the - and - lines in Figure 1, Figure 4 is an explanatory diagram of how to use the floor frame, and Figure 5 is a diagram illustrating the use of the floor frame.
The figure is a sectional view of the completed floor, Figure 6 is a perspective view of the tatami-yose frame fittings, Figure 7 is a perspective view of the tatami-yose frame intermediate fittings, and Fig. 8 is a perspective view of the tatami-yose frame intermediate fittings.
9 is a perspective view of the corner tension fitting, FIG. 9 is a perspective view of the intermediate tension fitting, and FIG. 10 is a sectional view taken along the line X-X in FIG. 5. 3, 3'...C-beam steel, 4...Coil spring.

Claims (1)

[Scope of utility model registration request] Two C-shaped steels are arranged vertically in parallel and face each other back to back, and a required number of coil springs of a predetermined strength are installed between the two C-shaped steels at a predetermined pitch in the longitudinal direction of the C-shaped steels. Then, the upper and lower two C
A gymnasium floor frame characterized by connecting shaped steel.