JPH063075Y2 - Floor board support device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a floor plate supporting device for supporting a floor plate of a building such as a gymnasium or a house so that the level of the floor plate can be adjusted. An underfloor support device useful when low.

[Conventional technology]

Conventionally, as a floor board supporting device, for example, one shown in FIG. 6 is known (published in Japanese Utility Model Laid-Open No. 59-28139). This is a floor board support part 2 that supports the floor board 1,
It is composed of a support bolt 3 for screw-supporting the floor plate supporting portion 2 and a support base 4 for supporting the support bolt 3. The support base 4 includes a bolt receiving portion 6 that rotatably supports a bolt head 5 at a lower end portion of the support bolt 3, and a cap that engages with the bolt receiving portion 6 and holds the bolt head 5 on the bolt receiving portion 6. A member 7 and a base 8 made of a rubber elastic material, which is placed on the underfloor foundation surface 9 and is formed in a truncated cone shape and supports the bolt receiving portion 6, are provided. The bolt receiving portion 6 is fixed to the base portion 8 in advance.

When arranging the floorboard 1 using this support device, for example, the floorboard support portion 2 is fixed to the floorboard 1, while the bolt head 5 of the support bolt 3 is housed in the bolt receiving portion 6 on the base portion 8, Then, the cap member 7 is engaged with the bolt receiving portion 6. Next, the support bolt 3 together with the support base 4 is screwed into the floor plate support portion 2 fixed to the floor plate 1. Then floorboard 1
Are placed on the underfloor foundation surface 9 together with the supporting device.

In this state, when a driver is inserted into the slit 3a at the upper end of the support bolt 3 and the support bolt 3 is rotated, the floor plate supporting portion 2 moves up and down with respect to the support bolt 3, and the level of the floor plate 1 is adjusted.

[Problems to be solved by the invention]

By the way, in this conventional supporting device, as shown in FIG. 7, when the height (H) of the floor plate 1 with respect to the underfloor foundation surface 9 is low, the supporting bolt 3 having a short length is used. The floor plate supporting portion 2 is lowered to the vicinity of the bolt receiving portion 6, but when it is desired to make the height lower than this, the floor plate supporting portion 2 contacts the bolt receiving portion 6 and cannot be further lowered. Therefore, there was a limit and there was a problem that it could not cope with a low floor.

In order to solve this, it is conceivable to use the base portion 8 having a short height (l). However, since the base portion 8 cannot be sufficiently elastically deformed by the shortened height, the vibration absorbing performance is accordingly increased. Also, it cannot be used on floors where the sound absorption performance is inferior and the load and impact are large.

Therefore, the technical problem of the present invention is to make it possible to support the floor plate as low as possible without impairing the vibration absorbing performance and the sound absorbing performance.

[Means for solving problems]

The technical means of the present invention for solving such a problem is that the bolt receiving portion rotatably supports the bolt head, and the lower end portion of the floor plate supporting portion is a cup-shaped receiving portion and the receiving portion. The cap member is provided with a pressing portion that allows the floor plate supporting portion to be retracted and is accommodated in the accommodating portion to press the screw side surface of the bolt head, and the base portion is a bolt receiving portion. The housing has a recess into which the housing of the housing fits, and the wall forming the recess surrounds the outside of the housing and supports the outward flange.

[Action]

According to this means, when the support bolt is rotated, the floor plate supporting portion moves up and down with respect to the support bolt, and the level of the floor plate is adjusted. In this case, since the lower end portion of the floor plate supporting portion can be recessed in the receiving portion of the bolt receiving portion, the lower end portion can be positioned in the recess below the upper surface of the base portion, and the floor plate supporting portion is lowered to that extent. be able to.

Also, when the load from the floor plate acts on the support bolts with the floor plate assembled, the load is transmitted to the base part through the bolt receiving part, but the force acting on the bolt receiving part is outwardly directed to the receiving part. The force is transmitted to the wall portion of the base portion forming the concave portion via the flange, whereby the wall portion of the base portion is elastically deformed, so that the above force is sufficiently absorbed.

〔Example〕

Hereinafter, a floor board supporting device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The same parts as those described above are designated by the same reference numerals and the description thereof will be omitted.

The basic structure of the supporting device according to the embodiment is shown in FIGS.
As shown in the figure, a floor plate support portion 10 for supporting the floor plate 1,
It is composed of a support bolt 20 that supports the floor plate support portion 10 and a support base 30 that supports the support bolt 20.

The floor plate supporting portion 10 is composed of a tubular portion 12 in which a female screw portion 11 that is screwed into the support bolt 20 is formed, and a flange portion 13 that is fixed to the upper end portion of the tubular portion 12 and contacts the lower surface of the floor plate 1. . Reference numeral 14 is a mounting hole for a screw 15 for fixing the flange portion 13 to the floor plate 1.

As shown in FIG. 2, the support bolt 20 has a male screw portion 2 that is screwed onto a shaft portion 21 of the female screw portion 11 of the floor plate supporting portion 10.
2 is formed, and a bolt head 23 having a diameter larger than that of the shaft portion 21 is formed at the lower end portion. Reference numeral 24 is a slot for a driver formed on the upper end of the male screw portion 22.

As shown in FIGS. 1 and 2, the support base 30 is composed of a bolt receiving portion 31, a cap member 35, and a base portion 40.

As shown in FIG. 2, the bolt receiving portion 31 includes a cup-shaped accommodating portion 32 on which the bolt head 23 of the support bolt 20 is rotatably supported. The accommodating portion 32 is formed in such a size that the lower end portion 12a of the tubular portion 12 of the floor plate supporting portion 10 can be recessed. Further, an outward flange 33 is extended to the opening edge 32 a of the accommodation portion 32, and a hanging flange 34 is suspended from the outer edge 33 a of the outward flange 33. The lower end portion 34a of the hanging flange 34 expands outward.

As shown in FIG. 2, the cap member 35 is recessed in the accommodating portion 32 of the bolt receiving portion 31 and the recess 36 into which the lower end portion 12a of the tubular portion 12 of the floor plate supporting portion 10 is depressed.
A cup-shaped bolt pressing portion 36 forming a and the bolt receiving portion 31 formed on the opening edge 36b of the bolt pressing portion 36.
Cover flange 37 that covers the upper surface of the outward flange 33, and a holding flange 38 that hangs from the outer edge 37 a of the cover flange 37 and abuts the hanging flange 34 of the bolt receiving portion 31.
And an engaging flange 39 formed on the lower edge 38a of the pressing flange 38 and engaging with the lower end portion 34a of the hanging flange 34. The bolt pressing part 36
36d has a sloped surface. Further, an insertion hole 29 through which the shaft portion 21 of the support bolt 20 is inserted is formed in the bottom wall 36c of the bolt pressing portion 36. And
As shown in FIG. 1, the engagement flange 39 engages with the lower end portion 34a of the hanging flange 34 to allow the bolt pressing portion 36 to be engaged.
The projecting dimension of the bolt pressing portion 36 is determined so that the bottom wall 36c of the bolt pressing portion 36 contacts the screw side surface 26 of the bolt head 23 in a state where the bolt pressing portion 36 is stored in the housing portion 32 of the bolt receiving portion 31. There is.

As shown in FIG. 2, the base portion 40 is a cylindrical member made of rubber, and has a recess 41 formed along the axis thereof into which the accommodating portion 32 of the bolt receiving portion 31 is fitted. . The wall portion 42 forming the recess 41 surrounds the outside of the housing portion 32 of the bolt receiving portion 31 and supports the outward flange 33. Further, the base portion 40 is formed with the bolt receiving portion 31 adhered thereto. In this state, the storage unit 3
2 is fitted in the recess 41, the outward flange 33 is in contact with the upper surface 43 of the wall portion 42, and the depending flange 34 is in contact with the outer surface 44 of the wall portion 42.

Therefore, when the floor board supporting device according to this embodiment is assembled to the floor board 1, for example, first, as shown in FIG. 1, the hole portion 1a of the floor board 1 and the tubular portion 12 of the floor board bearing portion 10 are coaxial with each other. The flange portion 13 of the floor plate supporting portion 10 is fixed to the floor plate 1 with screws 15 so that the above.

On the other hand, separately from this, the support bolt 20 is assembled to the support base 30. At this time, the bolt head 2 of the support bolt 20
The housing portion 32 of the bolt receiving portion 31 in which 3 is fixed to the base portion 40
Then, the cap member 35 is inserted into the shaft portion 21 of the support bolt 20 and pushed into the bolt receiving portion 31. As a result, the bolt pressing portion 36 of the cap member 35 is retracted into the accommodating portion 32 of the bolt receiving portion 31, the engaging flange 39 is engaged with the lower end portion 34a of the hanging flange 34, and the cap member 35 is bolt receiving. It is attached to the section 31. In this state, the bottom wall 36c of the bolt pressing portion 36 of the cap member 35 is
Contacts the screw side surface 26 of the bolt head 23, so that the support bolt 20 is prevented from coming off from the bolt receiving portion 31.

After that, the support bolt 20 with the support base 30 is screwed into the floor plate supporting portion 10 fixed to the floor plate 1.

Then, the assembled floor board supporting device is placed on the underfloor foundation surface 9 together with the floor board 1. In this case, even if the support bolt 20 is about to fall out from the support base 30, the bottom wall 36c of the bolt pressing portion 36 of the cap member 35 does not contact the bolt head 23.
The support bolt 20 is prevented from coming off from the bolt receiving portion 31, because the support bolt 20 is in contact with the screw side surface 26.

When adjusting the level of the floor board 1 in a state where the floor board supporting device is arranged on the underfloor foundation surface 9, the support bolt 20 is used.
A driver is inserted into the slot 24 at the upper end and the support bolt 20 is rotated. In this case, the bolt head 23 of the support bolt 20 rotates within the accommodating portion 32 while being supported by the accommodating portion 32 of the bolt receiving portion 31. And this support bolt 2
By the rotation of 0, the floor plate bearing 1 with respect to the support bolt 20
0 moves up and down.

In this case, as shown in FIG. 3, the lower end 12a of the tubular portion 12 of the floor plate supporting portion 10 is recessed in the receiving portion 32 of the bolt receiving portion 31, that is, the cap member 3 even if the floor plate supporting portion 10 is lowered.
Since it is recessed into the recess 36a of the bolt pressing portion 36 of the cap member 35 without coming into contact with the cover flange 37 of 5,
The lower end 12a is formed in the recess 4 below the upper surface 43 of the base 40.
It can be located within 1, and only that, floor plate bearing 1
0 can be lowered. Therefore, it is possible to deal with the case where the floorboard 1 must be set low.

Further, when the floor board 1 is level-adjusted and installed on the underfloor foundation surface 9, as shown in FIG. 1, when the load from the floor board 1 acts on the support bolt 20, the load is applied to the bolt receiving portion 31. Is transmitted to the base portion 40 via. in this case,
The lateral component Fh of the force F acting on the bolt receiving portion 31 is also transmitted to the wall portion 42 via the accommodating portion 32 and the hanging flange 34, and the vertical component Fv is also transmitted to the wall portion 42 via the outward flange 33. Therefore, the wall portion 42 of the base portion 40 is elastically deformed. Therefore, by forming the recessed portion 41 in the base portion 40, from the underfloor foundation surface 9 to the storage portion 3
2 Even if the dimension (l) up to the bottom surface 32b is small, the above force F is generated due to the elastic deformation of the wall portion 42 in addition to the elastic deformation of the portion of the storage portion 32 below the bottom surface 32b.
Is absorbed. Therefore, it is possible to prevent the vibration absorption performance and the sound absorption performance from being deteriorated.

The above embodiment can be applied not only when the height (H) of the floorboard 1 with respect to the underfloor foundation surface 9 is low, but also when it is high. In this case, as shown in FIGS. 4 and 5, the support bolts 50 and 51 may be formed appropriately longer than those shown in FIG. In addition, the dimension (l) from the underfloor foundation surface 9 of the bases 52 and 53 to the bottom surface 32b of the storage portion 32 is also made large, and holes 54 and 55 that open to the underfloor foundation surface 9 side are provided to provide vibration absorption performance and sound absorption. Performance may be further improved. Further, as shown in FIGS. 4 and 5, the lengths of the tubular portions 58 and 59 of the underfloor bearing portions 56 and 57 may be appropriately determined. Furthermore, the cap member 35 of the above embodiment.
In FIG. 4, the side wall 36d of the bolt pressing portion 36 is formed to be inclined, but the present invention is not limited to this, and the side wall 61a is formed vertically like the bolt pressing portion 61 of the cap member 60 shown in FIG. Then, the receiving portion 32 of the bolt receiving portion 31
You may make it fit to.

[Effect of device]

As described above, according to the floor board supporting device of the present invention,
Immerse the lower end of the floor plate bearing part in the receiving part of the bolt receiving part,
Since it can be located in the recess below the upper surface of the base, the floor plate bearing can be lowered accordingly.
Therefore, it is possible to cope with the case where the height of the floor plate with respect to the underfloor foundation surface is made extremely low. Further, since the load acting on the support bolt from the floor plate can be absorbed also by the elastic deformation of the wall portion of the base portion, it is possible to suppress the deterioration of the vibration absorbing performance and the sound absorbing performance.

[Brief description of drawings]

FIG. 1 is a half sectional view showing a floorboard supporting device according to an embodiment of the present invention together with its assembled state, FIG. 2 is an exploded perspective view showing the floorboard supporting device, and FIG. 3 is a sectional view showing the action of the floorboard supporting device. FIG. 4, FIG. 5 and FIG. 5 are sectional views and half sectional views showing a modified example of the floor board supporting device according to the embodiment, and FIG. 6 is a sectional view showing an example of a conventional floor board supporting device together with its assembled state,
FIG. 7 is a sectional view showing a defect of the conventional floor board supporting device. DESCRIPTION OF SYMBOLS 1 ... Floor board 9 ... Underfloor foundation surface 10 ... Floor board support part 12 ... Tubular part 12a ... Lower end part 20 ... Support bolt 23 ... Bolt head 30 ... Support stand 31 ... Bolt receiving part 32 ... Housing part 33 ... Outward flange 35 ... Cap member 36 ... Bolt holding portion 40 ... Base portion 41 ... Recessed portion 42 ... Wall portion

Claims (1)

[Scope of utility model registration request] 1. A floor board support portion for supporting a floor board, a support bolt for threadably supporting the floor board support portion, a bolt receiving portion for supporting a bolt head at a lower end portion of the support bolt, and the bolt receiving portion for engaging with the bolt receiving portion. In a floor board supporting device comprising a cap member for holding the bolt head portion to a bolt receiving portion and a base portion made of an elastic material placed on the underfloor foundation surface and supporting the bolt receiving portion, the bolt receiving portion is the bolt. A rotatably supporting head and a cup-shaped accommodating portion into which the lower end of the floor plate supporting portion can be inserted, and an outward flange formed at an opening edge of the accommodating portion,
The cap member is provided with a pressing portion which allows the floor plate support portion to be depressed and is accommodated in the accommodating portion to press the screw side surface of the bolt head, and the base portion has a concave portion into which the accommodating portion of the bolt receiving portion is fitted. A floorboard supporting device, characterized in that the outside of the accommodating portion is surrounded by a wall portion that forms a wall and an outward flange is supported.