JP2007138692A - Floor sleeve device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor sleeve device simple in structure and precisely adjustable in height to the thickness of a concrete floor. <P>SOLUTION: The floor sleeve device 10 is arranged on a level with a concrete floor and forms a vertical piping passage in the concrete floor. The device is composed of a lower sleeve 12 located at the lower part of the device, an upper sleeve 14 mounted at a position above and around the lower sleeve 12 in a way that it can vertically slide up and down around the lower sleeve 12, a nut 16 fixed to the outer periphery of the upper sleeve 14, a connector 18 fixed to the outer periphery of the lower sleeve at their bottom end and having a slide groove in the axial direction, and a butterfly screw 24 that screws the connector 18 into the nut 16 fixed on the upper sleeve 14 via the slide groove of the connector 18 for tightening them with the space between the lower sleeve 12 and the upper sleeve 14 adjusted to a slide position coincident with an installation floor thickness. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a floor sleeve device that is attached to a floor position in a building work or the like and forms a through-hole in a vertical direction when the concrete is cast.

Conventionally, at the time of building work, a cylindrical sleeve is attached to a floor portion through which piping passes when reinforcing bars are assembled. Such a sleeve is made of a thin steel plate, and a sleeve having a height corresponding to the thickness of a floor constructed by concrete casting is manufactured and attached.
Design Registration No. 1077117

  However, in such a conventional floor sleeve, a height corresponding to the thickness of the floor of the building to be constructed is necessary, and the height of the floor is in the range of about 200 mm to 600 mm, for example. Even in a building, the dimensions may differ depending on the floor, for example, in units of 5 mm, and this is a high-mix low-volume production in which the required number of sleeves having different dimensions must be manufactured. -Manufactured and delivered in units of 3 days, and it is difficult to make a long-term production plan. Is a big problem.

  In order to solve this problem, a flexible sleeve can be considered in which the height of the sleeve can be freely adjusted as necessary by screwing together a pair of sleeves formed with thread grooves, as in Patent Document 1. In screwing with screws, when the sleeve is mounted upright on the floor part, the height dimension deviation due to screw play occurs within a few millimeters and it is difficult to set the floor dimensions accurately. There is.

  Also, floor sleeves form thread grooves on the outer periphery by extruding thin metal sheets, etc., so the processing is complicated, and when the pair of sleeves are screwed together, if the play is not large, it cannot rotate smoothly and play If it is increased, there is a problem that the deviation of the height dimension at the time of installation becomes large, and practical application is difficult.

An object of the present invention is to provide a floor sleeve device that can be adjusted in the height direction with a simple structure and capable of accurately setting a height corresponding to a floor dimension.

In order to achieve this object, the present invention is configured as follows. The present invention is a floor sleeve device which is arranged at a floor position where concrete is placed and forms a pipe through hole in a vertical direction,
A lower sleeve located on the lower side;
An upper sleeve located on the upper side and slidably mounted on the outside of the lower sleeve;
A pair of nut members fixed to the outer peripheral surface of the upper sleeve;
A pair of connecting members whose lower ends are fixed to the outer peripheral surface of the lower sleeve and in which a slide groove is formed in the axial direction;
With the distance between the lower end of the lower sleeve and the upper end of the upper sleeve adjusted to the slide position that matches the thickness of the floor to be installed, the nut is fixed to the nut member fixed to the upper sleeve via the slide groove of the pair of connecting members. A pair of screw members for fixing the pair of connecting members together,
It is provided with.

Further, in another form of the present invention, a floor sleeve device that is arranged at a floor position where concrete is placed and forms a pipe through hole in a vertical direction,
A lower sleeve located on the lower side;
An upper sleeve located on the upper side and slidably mounted on the outside of the lower sleeve;
A pair of bolt members having a head portion fixed to the outer peripheral surface of the upper sleeve with the screw portion on the outside;
A pair of connecting members whose lower ends are fixed to the outer peripheral surface of the lower sleeve and in which a slide groove is formed in the axial direction;
Screwed into the threaded part of the bolt member protruding through the slide groove of the pair of connecting members, with the distance between the lower end of the lower sleeve and the upper end of the upper sleeve adjusted to the slide position that matches the thickness of the floor to be installed A pair of nut members for fixing the pair of connecting members;
It is provided with.

Here, a scale representing the distance between the lower end of the lower sleeve and the upper end of the upper sleeve is provided in the outer peripheral axis direction of the lower sleeve. As this scale, an adhesive tape graduated on the surface is attached in the direction of the outer peripheral axis of the lower sleeve.

  According to the present invention, the upper sleeve is slidably fitted on the outer side of the lower sleeve, and the upper sleeve is adjusted via the slide groove of the connecting member fixed to the lower sleeve in a state adjusted to a height matching the floor dimension. By screwing and fixing the screw member (or nut member) to the nut member (or bolt member) of the sleeve, the height dimension can be set easily and accurately.

  In this way, the sleeve height dimension can be freely adjusted according to the floor dimension, so even if the floor dimension varies from site to site, it is sufficient to use a floor sleeve device that includes the floor size within the adjustment range. Without being constrained by the floor dimensions at the factory, the manufacturing side can take the lead in making a production plan, and can solve the problem of multi-volume production in one machine.

In addition, by providing a scale on the outside of the lower sleeve, by aligning the lower end of the upper sleeve with this scale, it is possible to accurately set the height to match the floor dimensions, eliminating the need for field work using a separate measure. For example, the height corresponding to the floor dimension in millimeters can be set easily and easily.

  FIG. 1 is an explanatory view showing an embodiment of a floor sleeve device according to the present invention. FIG. 2 is a side view, and FIG. 3 is a plan view.

  1 to 3, the floor sleeve device 10 of this embodiment includes a lower sleeve 12 and an upper sleeve 14. The upper sleeve 14 is fitted on the outer side of the lower sleeve 12 so as to be slidable in the axial direction. Accordingly, the outer shape of the lower sleeve 12 has a dimension that substantially matches the inner diameter of the upper sleeve 14. Both the lower sleeve 12 and the upper sleeve 14 are cylindrical members made of a thin metal plate.

  In the floor sleeve device 10 of the present invention, the upper sleeve 14 must be fitted into the outer side of the lower sleeve 12. This is for preventing the inside of the sleeve from flowing through the gap between the mating portions of the lower sleeve 12 and the upper sleeve 14 during concrete placement. Note that a fixing bracket 27 is fixed to the lower end of the outer periphery of the lower sleeve 14 by spot welding as necessary.

  As shown in FIG. 4, the upper sleeve 12 has a thin nut 16 fixed thereto by welding or the like at a lower position in the radial direction on the outer peripheral surface. As shown in FIG. 5, the lower sleeve 12 has a pair of connecting fittings 18 fixed to the lower position of the outer peripheral surface facing the radial direction by spot welding or the like.

  As shown in FIG. 6, the connecting bracket 18 is a metal plate member that is long in the axial direction, has a slide groove 20 in the axial direction, and has a lower end bent into an L shape to form a fixed portion 22. The dimensions of the connecting fitting 18 and the slide groove 20 in the axial direction are determined according to the adjustment height of the upper sleeve 12 that is slidably fitted into the fixed lower sleeve 12.

  Referring again to FIGS. 1 to 3, the connecting fitting 18 fixed to the lower sleeve 14 is positioned outside the nut 16 fixed to the upper sleeve 12, and the slide groove 20 of the connecting member 18 is aligned with the screw hole of the nut 16. In this state, the thumbscrew 24 is screwed from the outside and fixed. The thumbscrew 24 has a holding portion 25 formed on the screw portion side, and the connecting member 18 is sandwiched and fixed between the nut 16 and the pressing portion 25.

  In addition, in order to prevent the movement in a fixed state, you may provide the notch | indentation by a knurling etc. in the part of the both sides of the slide groove | channel 20 pinched and fixed by the screwing of the thumbscrew 24 of the connection member 18. FIG.

  A scale 28 is provided in the axial direction of the outer periphery of the lower sleeve 12. As the scale 28, for example, a white adhesive tape with a scale 30 displayed on the surface thereof is pasted.

  In the floor sleeve device 10 of the present invention having such a structure, when the floor size of the installation place is the distance D1 from the floor surface 31 to the floor back surface 32, it matches the floor distance D1. The sliding position of the upper sleeve 14 is adjusted with the thumbscrew 24 loosened with respect to the lower sleeve 12.

  This sliding position can be adjusted using the scale 30 of the scale 28 of the lower sleeve 12. The scale D of the scale 28 can be determined by adjusting the size of the scale with the lower end portion 14b of the upper sleeve 14 as the cursor position, thereby determining the distance D1 between the upper end portion 14a of the upper sleeve 14 and the lower end portion 12b of the lower sleeve 12.

  Accordingly, by aligning the lower end portion 14b of the upper sleeve 14 so that the scale 30 has the dimension given by the floor thickness D1 and the scale position of the scale 30, the height D1 corresponding to the dimension of the floor is set to the floor sleeve device. 10 can be set.

  When the height adjustment of the lower sleeve 12 and the upper sleeve 14 using the scale 30 is completed in this way, the nut in which the thumbscrew 24 is fixed to the upper sleeve 12 via the slide groove 20 of the connecting metal 18 in that state. When the screw 16 is screwed into the screw hole 16, the connecting metal fitting 18 is sandwiched and fixed between the pushing portion 25 of the thumbscrew 24 and the nut 16, and the height of the lower sleeve 12 and the upper sleeve 14 are adjusted via the connecting metal fitting 18. Can be fixed to.

  Usually, since the floor thickness in which the floor sleeve device is provided is in a range of 200 mm to 600 mm, for example, the intermediate dimension between the maximum length and the minimum length of the adjustment interval between the upper sleeve 14 and the lower sleeve 12 is, for example, 200 mm, 300 mm, 400 mm. , 500 mm, and the adjustable dimensions are set to ± 50% of the reference height, and the following floor dimension range can be adjusted.

(1) Reference dimension 200 mm ± 100 mm = 100 mm to 300 mm
(2) Standard dimension 300 mm ± 150 mm = 150 mm to 450 mm
(3) Standard dimension 400 mm ± 200 mm = 200 mm to 600 mm
(4) Reference dimension 500 mm ± 250 mm = 250 mm to 750 mm

  Of course, the reference dimension and the dimension adjustment range are examples, and an appropriate adjustment range can be set as necessary. Moreover, the adjustment dimension range should just prepare the connection metal fitting 18 from which length differs according to each range.

  FIG. 7 is an explanatory view showing another embodiment of a floor sleeve device according to the present invention. The embodiment of FIG. 7 is characterized in that the nut 16 fixed to the upper sleeve 12 in the embodiment of FIGS. 1 to 3 is replaced with a bolt 34 in this embodiment. The bolt 34 has a thin head, and the head is fixed to the radially opposing position of the outer peripheral surface of the upper sleeve 12 by welding with the screw portion 34a facing outward.

  The lower sleeve 14 to which the connecting member 18 is fixed is the same as that of the embodiment of FIGS. 1 to 3, and the bolt 34 that is fixed to the upper sleeve 12 in a state where the upper sleeve 12 is fitted to the outside of the lower sleeve 14. The slide groove (see FIG. 6) of the connecting metal fitting 18 is fitted into the screw portion 34a, and the wing nut 36 is screwed and fixed to the screw portion 34a in a state where the height is adjusted. The wing nut 36 is integrally provided with a pressing portion 38, and the connecting fitting 18 is sandwiched and fixed between the head portion of the bolt 34 and the pressing portion 38 by screwing to the screw portion 34 a.

  In the embodiment of FIG. 7, it is necessary to bend the connecting member 18 when the slide groove 20 is fitted into the screw portion 34 a of the bolt 34 fixed to the upper sleeve 12, but this is avoided. Therefore, the slide groove 20 of the connecting member 16 of FIG. 6 used in the embodiment of FIG. 7 may be a slide groove opened upward.

  In the above embodiment, the wing screw 24 is used so that the connection fitting 18 can be fixed by screwing without using a tool. However, the wing screw 24 has a large amount of protrusion and costs. Since it is expensive, screws and bolts that are screwed with a normal screwdriver may be used.

  Further, the scale 28 may be provided at two opposite positions on the outer periphery of the lower sleeve 12 to increase the accuracy of the adjustment dimension.

The present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

Explanatory drawing which showed one Embodiment of the sleeve apparatus for floors by this invention Side view of FIG. Plan view of FIG. Explanatory drawing which took out and showed the upper sleeve of FIG. Explanatory drawing which took out and showed the lower sleeve of FIG. Explanatory drawing which took out and showed the connection metal fitting of FIG. Explanatory drawing which showed other embodiment of the sleeve apparatus for floors by this invention

Explanation of symbols

10: Floor sleeve device 12: Lower sleeve 12a, 14a: Upper end portion 12b, 14b: Lower end portion 14: Upper sleeve 16: Nut 18: Connecting bracket 20: Slide groove 22: Fixing portion 24: Thumb screw 25, 38: Push Part 26: Fixing bracket 28: Scale 30: Scale 31: Floor surface 32: Floor back surface 34: Bolt 34a: Screw part 36: Wing nut

Claims (4)

In the floor sleeve device which is arranged at the floor where the concrete is placed and forms a pipe through hole in the vertical direction,
A lower sleeve located on the lower side;
An upper sleeve located on the upper side and slidably mounted on the outside of the lower sleeve;
A pair of nut members fixed to the outer peripheral surface of the upper sleeve;
A pair of connecting members whose lower ends are fixed to the outer peripheral surface of the lower sleeve and in which a slide groove is formed in the axial direction;
The distance between the lower end of the lower sleeve and the upper end of the upper sleeve is adjusted to a slide position that matches the thickness of the floor to be installed, and is fixed to the upper sleeve via the slide grooves of the pair of connecting members. A pair of screw members that are screwed onto the nut member to fix the pair of connecting members;
A floor sleeve device comprising:
In the floor sleeve device which is arranged at the floor where the concrete is placed and forms a pipe through hole in the vertical direction,
A lower sleeve located on the lower side;
An upper sleeve located on the upper side and slidably mounted on the outside of the lower sleeve;
A pair of bolt members with the head portion fixed to the outer peripheral surface of the upper sleeve with the screw portion on the outside;
A pair of connecting members whose lower ends are fixed to the outer peripheral surface of the lower sleeve and in which a slide groove is formed in the axial direction;
The screw of the bolt member that protrudes through the slide groove of the pair of connecting members in a state where the distance between the lower end of the lower sleeve and the upper end of the upper sleeve is adjusted to a slide position that matches the thickness of the floor to be installed. A pair of nut members that are screwed together to fix the pair of connecting members;
A floor sleeve device comprising:
3. The floor sleeve device according to claim 1, wherein a scale representing a distance between a lower end of the lower sleeve and an upper end of the upper sleeve is provided in an outer peripheral axis direction of the lower sleeve. Sleeve device.
4. The floor sleeve device according to claim 3, wherein an adhesive tape graduated on the surface is attached as the scale in the direction of the outer peripheral axis of the lower sleeve.

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