JP7181905B2 - floor bundle - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor bundle that is installed on a base surface such as earthen floor concrete and supports an underfloor panel.

2. Description of the Related Art Conventionally, in a building such as a house, there has been known a floor truss that is installed on a base surface such as earthen floor concrete and supports an underfloor panel (see, for example, Patent Document 1). A bed bundle (support device) disclosed in Patent Document 1 includes a screw shaft, a support column having a cylindrical body that is screwed with one end of the screw shaft, and a tightening body that is screwed with the screw shaft. ing.

In the conventional floor bundle having such a configuration, the height of the underfloor panel can be adjusted by relative rotation between the screw shaft and the cylinder. After adjusting the height of the underfloor panel, the relative rotation between the screw shaft and the cylinder is prevented by rotating the clamping body around the screw shaft so that the clamping body moves toward the cylinder. regulate. Thereby, it is possible to maintain the height position of the underfloor panel after the height adjustment.

JP-A-5-156790

However, in the above-described prior art, in the adjustment work for adjusting the height of the underfloor panel, after releasing the tightening of the tightening body, the screw shaft and the cylindrical body are relatively rotated. , it is necessary to move the tightening body while rotating it around the screw shaft to a retracted position where it does not interfere with the adjustment work. Furthermore, after adjusting the height, it is necessary to move the tightening body at the retracted position to the restricting position for restricting the relative rotation between the screw shaft and the cylindrical body while rotating about the screw shaft. As described above, in the above-described prior art, it is necessary to move the tightening body between the retracted position and the regulated position while rotating it around the screw shaft in the adjustment work for adjusting the height of the underfloor panel. , there is a problem that it takes time and effort to adjust the height.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and its object is to provide a floor truss that can improve the work efficiency of the adjustment work for adjusting the height of the underfloor panel. to do.

A floor truss according to one aspect of the present invention is a floor truss that is installed on a base surface and supports an underfloor panel. The floor bundle includes a base installed on the base surface, a first support section extending upward from the base, a tubular section for receiving an upper portion of the first support section, and a tubular section provided below the tubular section. and a holding portion provided above the cylindrical portion for holding the underfloor panel, the second supporting column portion being axially movable with respect to the first supporting column portion. and an adjusting mechanism for adjusting the axial position of the second support section with respect to the first support section. The first support section has a support male screw section formed on its outer peripheral surface. The adjustment mechanism includes an elastic portion provided below the external screw portion, which restricts movement of the second support portion in the axial direction by elastic deformation due to application of a pressing force in a predetermined direction, and an upper side of the elastic portion. an operation member externally inserted movably in the axial direction with respect to the first support section, the operation female screw section being screwed with the support male thread section on an inner peripheral surface facing the first support section and an operating portion that is rotated for movement along the axial direction; and an operating portion that is provided above the operating portion, and that the operating portion is in an idle state with respect to the second strut portion during the rotating operation. an operating member having a connecting portion connected to the second support portion so as to be; an internal thread portion externally inserted to the first support portion and screwed into the external thread portion; a tightening member having a pressing portion that presses the elastic portion in the predetermined direction in response to screwing of the screw portion.

According to this floor bundle, the height of the underfloor panel can be adjusted by axially moving the second support section with respect to the first support section extending upward from the base installed on the base surface. can be done. After adjusting the height of the underfloor panel, the pressing portion of the tightening member is screwed together with the inner threaded portion of the tightening member externally inserted on the first strut portion and the outer threaded portion of the second strut portion. presses the elastic portion provided below the outer threaded portion to restrict axial movement of the second strut portion. This makes it possible to maintain the height position of the underfloor panel after the height adjustment.

Here, in the adjustment work for adjusting the height of the underfloor panel, by releasing the pressure of the pressing portion of the tightening member against the elastic portion, the restriction on the movement of the second strut portion is released, and the underfloor panel is lifted. Height adjustment can be made. Release of the pressing force applied to the elastic portion by the tightening member is achieved by releasing the screw engagement between the inner threaded portion of the tightening member and the outer threaded portion of the second strut portion. At this time, since the tightening member is not screwed with the first post portion, it becomes freely movable in the axial direction when the screwing between the inner threaded portion and the outer threaded portion is released. As a result, in the adjustment work for adjusting the height of the underfloor panel, it is not necessary to rotate and move the tightening member with respect to the first column, and the work efficiency of the adjustment work can be improved.

In this aspect, the operation member is moved in the axial direction by rotating the operation portion using a tool such as a wrench by screwing the post male thread portion of the first post portion and the operation female thread portion of the operation portion. can be made In the operation member, the connection portion is connected to the second support portion so that the operation portion is in an idle state with respect to the second support portion when the operation member is rotated. Therefore, when the operating member moves in the axial direction in response to the rotating operation of the operating portion, the second strut portion moves in the axial direction while its rotation is restricted. That is, the height of the underfloor panel can be adjusted by axially moving the second support member along with the movement of the operation member according to the rotation operation of the operation unit.

In the above bed bundle, the tightening member is formed in a cylindrical shape extending upward from the pressing portion and provided with the inner threaded portion, and the operation is performed while the inner threaded portion is screwed with the outer threaded portion. A configuration having a cylindrical portion that covers the member from the outside may be employed.

In this aspect, the operating member is covered by the cylindrical portion of the tightening member when the inner threaded portion of the tightening member and the outer threaded portion of the second strut are screwed together. As a result, it is possible to prevent the operation member from being erroneously operated after the height of the underfloor panel is adjusted. In addition, when operating the operating member to adjust the height of the underfloor panel, the threaded engagement between the inner threaded portion and the outer threaded portion is released, and the tightening member can be moved freely in the axial direction. , the operating member can be exposed.

In the above bed bundle, the elastic portion may be configured by an elastic piece that extends downward from the operation portion and is elastically deformable in a radial direction. The elastic piece has an elastic female screw portion that is formed on an inner peripheral surface facing the first post portion and screwed with the post male screw portion. The pressing portion presses the elastic piece in the radial direction toward the first post portion according to the screw engagement of the inner threaded portion with the outer threaded portion.

In this aspect, after the height of the underfloor panel is adjusted, the tightening member is tightened according to the screw engagement between the inner threaded portion of the tightening member externally inserted on the first support portion and the outer threaded portion of the second support portion. The pressing portion radially presses the elastic piece extending downward from the operating portion toward the first support portion. Thus, the elastic piece can be crimped onto the first post in a state where the elastic female threaded portion of the elastic piece is screwed to the post male threaded portion of the first post. Therefore, the axial movement of the operating member can be restricted, and accordingly the axial movement of the second strut portion can be restricted, and the height position of the underfloor panel after the height adjustment can be maintained. becomes.

In the above-described floor bundle, the elastic piece has a tapered surface portion on the outer peripheral surface thereof, the outer diameter of which decreases downward, and the pressing portion is formed in a cylindrical shape provided outside the tapered surface portion. and has an inner peripheral surface that is smaller than the maximum diameter of the tapered surface portion and larger than the minimum diameter thereof.

In this aspect, the tightening member is positioned so as to approach the second strut portion according to the screw engagement between the inner threaded portion of the tightening member externally inserted on the first strut portion and the outer threaded portion of the second strut portion. Moves upward along the axial direction. As the tightening member moves, the pressing portion presses the elastic piece. At this time, since the portion of the elastic piece to be pressed by the pressing portion is the tapered surface portion, the force of moving the tightening member along the axial direction can be converted into a pressing force in the radial direction. As a result, the pressing portion of the tightening member can more reliably press the elastic piece in the radial direction toward the first strut portion according to the threaded engagement between the internal threaded portion and the externally threaded portion.

In the above bed bundle, the elastic portion may have a spring washer disposed between the operating portion and the pressing portion in the axial direction. The pressing portion presses the spring washer in the axial direction toward the operating portion according to the screwing of the inner threaded portion with the outer threaded portion.

In this aspect, after the height of the underfloor panel is adjusted, the tightening member is tightened according to the screw engagement between the inner threaded portion of the tightening member externally inserted on the first support portion and the outer threaded portion of the second support portion. The pressing portion axially presses the spring washer so as to be sandwiched between it and the operation portion. As a result, a phenomenon occurs, such as the corner of the spring washer biting into both the pressing portion and the operating portion. Therefore, the axial movement of the operating member can be restricted, and accordingly the axial movement of the second strut portion can be restricted, and the height position of the underfloor panel after the height adjustment can be maintained. becomes.

In the bed bundle described above, the operation member may have a flange portion projecting radially outward from the lower end of the operation portion.

In this aspect, when the operating portion is operated to adjust the height of the underfloor panel, the operating tool or the like can be supported from below by the flange portion. As a result, it is possible to improve the workability of operating the operation unit.

In the above bed bundle, the tightening member is provided so that a gap is formed between it and the first strut portion when the internal threaded portion is screwed to the external threaded portion. good too.

In this aspect, since the tightening member has a gap between itself and the first strut portion and is externally inserted on the first strut portion, the portion of the first strut portion that is screwed to the male threaded portion of the first strut portion is do not have. As a result, the tightening member can be freely moved in the axial direction reliably by releasing the threaded engagement between the inner threaded portion of the tightening member and the outer threaded portion of the second strut portion.

INDUSTRIAL APPLICABILITY As described above, according to the present invention, it is possible to provide a floor truss capable of improving the working efficiency of the adjustment work for adjusting the height of the underfloor panel.

It is a front view which shows the structure of the bed bundle which concerns on 1st Embodiment of this invention. Figure 2 is a cross-sectional view of the bed bundle of Figure 1; FIG. 3 is a cross-sectional view of a main part of the bed bundle shown in FIG. 2; It is a figure explaining the procedure of the adjustment work which adjusts the height of an underfloor panel using a floor bundle. FIG. 10 is a diagram for explaining the procedure of holding work for holding the height position of the underfloor panel after the adjustment work; It is a figure which shows the modification of an operation member. FIG. 5 is a cross-sectional view showing the configuration of a bed bundle according to a second embodiment of the present invention; FIG. 8 is a cross-sectional view of a main part of the bed bundle shown in FIG. 7;

Hereinafter, a bed bundle according to one embodiment of the present invention will be described based on the drawings. The floor truss according to the present embodiment is a steel floor truss that is installed, for example, on the base surface of a building such as a house, and supports an underfloor panel. The base surface includes, for example, earthen floor concrete, foundation slabs, upper surfaces of bundled stones, and the like, and refers to the surface that serves as a base on which floor bundles are installed. Further, the floor bundles are not limited to steel bundles, and may be synthetic resin bundles.

<First embodiment>
1 to 3 are diagrams showing the structure of the bed truss 1 according to the first embodiment of the present invention, wherein FIG. 1 is a front view, FIG. 2 is a sectional view, and FIG. 3 is a floor truss 1. FIG. 3 is a cross-sectional view of a main part; The floor bundle 1 includes a base 2 installed on a base surface 9, a first support section 3 extending upward from the base 2, and a second support section extending further upward from the first support section 3 to hold an underfloor panel 10. It is provided with two struts 4 and an adjustment mechanism 5 . In the floor bundle 1, the first support section 3 and the second support section 4 are provided so that their central axes are coaxial. In addition, the axial direction along which the central axes of the first strut portion 3 and the second strut portion 4 extend coincides with the vertical direction, and the radial direction orthogonal to the axial direction is parallel to the base surface 9 .

The base 2 is configured by a flat plate. The base 2 is fixed to the base surface 9 by driving concrete pins 91 into the base surface 9 . At the center of the upper surface of the base 2, a first support pillar 3 is erected so as to extend upward from the base 2. As shown in FIG. The first support section 3 is a solid shaft formed in a columnar shape elongated in the vertical direction, and has a support male screw section 31 formed of a male screw on its outer peripheral surface.

The second strut portion 4 has a cylindrical tubular portion 41 that receives the upper portion of the first strut portion 3, and is a vertically elongated shaft member. The tubular portion 41 is provided at the lower end portion of the second strut portion 4 . The internal structure of the second strut portion 4 is not limited as long as it has a cylindrical portion 41 for receiving the upper portion of the first strut portion 3. The inside is a hollow shaft that is hollow over the entire vertical direction. Alternatively, the portion other than the cylindrical portion 41 may be a solid shaft. The second strut portion 4 is provided movably along the axial direction (vertical direction) with respect to the first strut portion 3 in a state where the upper portion of the first strut portion 3 is inserted into the cylindrical portion 41 .

In addition, the second strut portion 4 has an external screw portion 421 provided below the tubular portion 41 and a holding portion 43 provided above the tubular portion 41 for holding the underfloor panel 10. there is

The external threaded portion 421 is formed on the outer peripheral surface of the cylindrical external thread forming member 42 assembled to the cylindrical portion 41, as shown in FIGS. The external thread forming member 42 has an insertion portion 423 provided above the external thread portion 421 and inserted into the cylindrical portion 41 . The external thread forming member 42 is assembled to the tubular portion 41 so that the external threaded portion 421 is exposed outward from the lower end edge of the tubular portion 41 with the insertion portion 423 inserted into the tubular portion 41 . Attached. The assembly structure of the external thread forming member 42 with respect to the cylindrical portion 41 is not particularly limited, but for example, a screwing structure using screws between the insertion portion 423 and the cylindrical portion 41 can be adopted. . In this case, the external thread forming member 42 is assembled to the tubular portion 41 by screwing the male thread formed on the outer peripheral surface of the insertion portion 423 and the female thread formed on the inner peripheral surface of the tubular portion 41 . be done. The outer thread forming member 42 has an outer threaded portion 421 formed on its outer peripheral surface, and an engaging protrusion 422 protruding radially inward is formed on its inner peripheral surface. The external threaded portion 421 may be formed on the outer peripheral surface of the tubular portion 41 , and the engaging projection 422 may be formed on the inner peripheral surface of the tubular portion 41 . In this case, it is not necessary to assemble the external thread forming member 42 to the tubular portion 41 .

The holding portion 43 is provided at the upper end portion of the second strut portion 4 and is configured by a flat plate. The holding portion 43 holds the underfloor panel 10 on its upper surface from below. The holding portion 43 is fixed to the underfloor panel 10 by driving screws 101 into the underfloor panel 10 .

In the floor bundle 1 according to the present embodiment, by moving the second support section 4 along the axial direction (vertical direction) with respect to the first support section 3 extending upward from the base 2 installed on the base surface 9, , the height of the underfloor panel 10 held by the holding portion 43 can be adjusted.

In the floor truss 1, the adjustment mechanism 5 is used to adjust the height of the underfloor panel 10, that is, to adjust the position of the second support section 4 in the axial direction (vertical direction) with respect to the first support section 3. be. The adjusting mechanism 5 includes an operating member 6, an elastic portion 7, and a tightening member 8, as shown in FIGS.

The operation member 6 is externally inserted so as to be movable in the axial direction (vertical direction) with respect to the first column portion 3 and is operated when adjusting the height of the underfloor panel 10 . The operation member 6 is externally fitted to the first support 3 on the upper side of the elastic portion 7 which will be described later. The operating member 6 has an operating portion 61 and a connecting portion 62 . The operation portion 61 is a portion to which an operation force is applied to move the operation member 6 along the axial direction (vertical direction). The operation portion 61 has an operation female screw portion 611 formed of a female screw to be screwed with the male post screw portion 31 on the inner peripheral surface facing the first post portion 3, and the outer peripheral surface is formed, for example, in a hexagonal shape. It is the nut part. The operation portion 61 is rotated around the first support portion 3 in order to move the operation member 6 along the axial direction (vertical direction). The connecting portion 62 is a portion provided above the operating portion 61 and connected to the second support portion 4 . The connecting portion 62 is recessed radially inward from the upper end of the operating portion 61 , and extends downward from the lower surface of the engaging projection 422 of the external thread forming member 42 assembled to the cylindrical portion 41 of the second strut portion 4 . and an engaging portion 622 extending upward from the stepped portion 621 and engaged with the engaging projection 422 . In the connecting portion 62, the stepped portion 621 abuts on the lower surface of the engaging projection 422, and in a state where the engaging portion 622 is engaged with the engaging projection 422, the operation portion 61 is moved relative to the second strut portion 4 during the rotating operation. It is connected to the second strut portion 4 from below so that it is in an idle state.

In the bed bundle 1 provided with the adjustment mechanism 5 including the operation member 6, the operation member 6 is moved along the first strut portion 3 in accordance with the rotation operation on the operation portion 61, thereby connecting at the connection portion 62. The height of the underfloor panel 10 can be adjusted by moving the second support column 4 in the axial direction (vertical direction). More specifically, by screwing the post male screw portion 31 of the first post portion 3 and the operation female thread portion 611 of the operation portion 61, the operation portion 61 is rotated around the first post portion 3 using a tool such as a spanner. The operation member 6 can be moved in the axial direction (vertical direction) by the rotating operation. When the operating member 6 is moved upward in response to the rotating operation of the operating portion 61 , the second strut portion 4 is moved by the step portion 621 of the connecting portion 62 contacting the lower surface of the engaging projection 422 of the external thread forming member 42 . A force to move upward acts on the second strut portion 4 . As a result, the second strut portion 4 moves upward according to the upward movement of the operating member 6 . On the other hand, when the operating member 6 is moved downward in response to the rotating operation of the operating portion 61 , the engaging portion 622 of the connecting portion 62 that engages with the engaging projection 422 of the external thread forming member 42 causes the second post portion to move downward. A force that moves 4 downward acts on the second support section 4 . As a result, the second strut portion 4 moves downward in accordance with the downward movement of the operating member 6 . In the operating member 6, the connecting portion 62 is connected to the second support 4 so that the operating portion 61 is in an idle state with respect to the second support 4 during the rotation operation. Therefore, when the operating member 6 moves in the axial direction (vertical direction) in response to the rotating operation of the operating portion 61, the second strut portion 4 moves in the axial direction while its rotation is restricted. That is, the height of the underfloor panel 10 can be adjusted by moving the second support 4 in the axial direction (vertical direction) as the operation member 6 moves according to the rotation operation of the operation portion 61 .

2 and 3, the operating member 6 has a flange portion 612 protruding radially outward from the lower end of the operating portion 61. As shown in FIGS. As a result, a tool such as a wrench can be supported by the flange portion 612 from below when the operation portion 61 is operated to adjust the height of the underfloor panel 10 . Therefore, the workability of operating the operating portion 61 can be improved.

The elastic portion 7 is provided below the external threaded portion 421 of the second support 4 and restricts the movement of the second support 4 in the axial direction (vertical direction) by elastic deformation due to application of a pressing force in a predetermined direction. Specifically, the elastic portion 7 is provided below the operation portion 61 so as to restrict the movement of the second strut portion 4 by restricting the movement of the operation member 6 in the axial direction (vertical direction). there is

The elastic portion 7 is pressed by the tightening member 8 . The tightening member 8 is externally fitted on the first strut portion 3 on the lower side of the elastic portion 7 and the lower side of the operating member 6 . The tightening member 8 is externally fitted on the first strut portion 3 so that a gap GA is formed between the tightening member 8 and the first strut portion 3 . The tightening member 8 has an inner threaded portion 811 that is screwed onto the outer threaded portion 421 of the second strut portion 4, and a pressing portion 82 that presses the elastic portion 7 in the predetermined direction according to the threaded engagement of the inner threaded portion 811. ,have.

The pressing portion 82 is formed in a tubular shape. The pressing portion 82 has an outer peripheral surface formed in, for example, a hexagonal shape so as to enable a tightening operation using a tool such as a wrench, and has a circular insertion opening 821 in the center through which the first strut portion 3 can be inserted. ing. In the pressing portion 82 , the inner peripheral surface facing the first strut portion 3 that defines the insertion opening 821 serves as a pressing surface 822 that presses the elastic portion 7 . A pressing surface 822 of the pressing portion 82 is not formed with a threaded portion, and has a gap GA between itself and the first strut portion 3 . That is, the pressing portion 82 does not screw together with the male threaded portion 31 of the first post portion 3 .

The tightening member 8 has a cylindrical portion 81 extending upward from the upper end of the pressing portion 82 and provided with an inner threaded portion 811 . That is, the inner threaded portion 811 is formed on the inner peripheral surface of the tubular portion 81 . The inner threaded portion 811 is a threaded portion that screws together with the outer threaded portion 421 of the second column portion 4 , and does not screw with the column male threaded portion 31 of the first column portion 3 . An inner threaded portion 811 is formed in the tubular portion 81 , and an inner peripheral surface facing the first support portion 3 has a gap between itself and the first support portion 3 . The tightening member 8 is configured such that the operation member 6 is covered by the cylindrical portion 81 in a state where the inner threaded portion 811 is screwed with the outer threaded portion 421 of the second strut portion 4 .

After adjusting the height of the underfloor panel 10 in accordance with the movement of the second support section 4 in the axial direction (vertical direction) with respect to the first support section 3, the tightening member 8 externally inserted on the first support section 3 As the internal threaded portion 811 and the externally threaded portion 421 of the second post portion 4 are screwed together, the pressing portion 82 of the tightening member 8 presses the elastic portion 7 provided below the externally threaded portion 421 . When a pressing force is applied by the pressing portion 82 , the elastic portion 7 is elastically deformed in the radial direction and restricts the movement of the second strut portion 4 in the axial direction (vertical direction). As a result, it is possible to maintain the height position of the underfloor panel 10 after the height adjustment. More specifically, in a state where the tightening member 8 is arranged at a position where the inner threaded portion 811 and the outer threaded portion 421 can be screwed together, the pressing portion 82 having, for example, a hexagonal outer peripheral surface is pressed with a wrench or the like. A tool is used to rotate the second strut portion 4 . As a result, the tightening member 8 moves along the axial direction so as to approach the second support 4 according to the screw engagement between the inner thread 811 of the tightening member 8 and the outer thread 421 of the second support 4 . to move up. As the tightening member 8 moves, the pressing portion 82 presses the elastic portion 7 provided below the external screw portion 421 . As a result, the elastic portion 7 is elastically deformed in the radial direction to restrict the movement of the second strut portion 4 in the axial direction (vertical direction), and the height position of the underfloor panel 10 after the height adjustment can be maintained. Become.

In the present embodiment, as shown in FIGS. 2 and 3, the elastic portion 7 is provided integrally with the operation member 6, extends downward from the operation portion 61, and is elastically deformable in the radial direction. Configured. The plurality of elastic pieces 71 extend downward from the operating portion 61 at predetermined intervals so as to surround the first support 3 from the outside. Each elastic piece 71 has an elastic female threaded portion 711 formed of a female thread that screws together with the male post threaded portion 31 of the first post portion 3 on the inner peripheral surface facing the first post portion 3 . . With respect to the elastic portion 7 having such a configuration, the pressing portion 82 of the tightening member 8 is screwed into the plurality of elastic pieces 71 constituting the elastic portion 7 according to the screw engagement of the internal thread portion 811 with the external thread portion 421 . is pressed radially toward the first strut portion 3 . As a result, the pressing portion 82 elastically deforms the elastic pieces 71 in the radial direction in a state in which the elastic female threaded portion 711 is screwed to the post male threaded portion 31 of the first post portion 3 . can be pressed against. By press-fitting each elastic piece 71 to the first strut portion 3 , the movement of the operating member 6 integrated with each elastic piece 71 in the axial direction (vertical direction) is restricted. It is possible to restrict the axial (vertical) movement of the two struts 4 . As a result, it is possible to maintain the height position of the underfloor panel 10 after the height adjustment.

As shown in FIG. 3, each elastic piece 71 forming the elastic portion 7 has a tapered surface portion 72 on the outer peripheral surface thereof, the outer diameter of which decreases downward. The pressing portion 82 of the tightening member 8 is formed in a cylindrical shape provided outside the tapered surface portion 72 and has an inner peripheral surface that is smaller than the maximum diameter of the tapered surface portion 72 and larger than the minimum diameter. That is, the pressing surface 822 that defines the inner peripheral surface of the cylindrical pressing portion 82 is formed in a shape that is smaller than the maximum diameter of the tapered surface portion 72 and larger than the minimum diameter, and the tapered surface portion 72 of each elastic piece 71 is pushed from the outside. press.

As described above, in a state where the tightening member 8 is arranged at a position where the inner threaded portion 811 and the outer threaded portion 421 can be screwed together, the pressing portion 82 is rotated around the second support portion 4 using a tool such as a spanner. When rotated, the tightening member 8 axially moves closer to the second strut portion 4 according to the threaded engagement between the inner threaded portion 811 of the tightening member 8 and the outer threaded portion 421 of the second strut portion 4. move up along. As the tightening member 8 moves, the pressing portion 82 presses each elastic piece 71 . At this time, since the portion of each elastic piece 71 to be pressed by the pressing portion 82 is the tapered surface portion 72, the force of moving the tightening member 8 along the axial direction can be converted into a pressing force in the radial direction. . As a result, the pressing portion 82 of the tightening member 8 more reliably presses the elastic pieces 71 radially toward the first strut portion 3 in accordance with the threaded engagement between the inner threaded portion 811 and the outer threaded portion 421 . can do.

Here, adjustment work for adjusting the height of the underfloor panel 10 and holding work for holding the height position of the underfloor panel 10 after the adjustment work will be described with reference to FIGS. 4 and 5. FIG.

In the adjustment work of adjusting the height of the underfloor panel 10 using the floor truss 1, by releasing the pressure of the pressing portion 82 of the tightening member 8 against the elastic portion 7 (elastic piece 71), the second support portion 4 is released, the height of the underfloor panel 10 can be adjusted. The release of the pressure applied to the elastic portion 7 by the tightening member 8 is achieved by releasing the screw engagement between the inner threaded portion 811 of the tightening member 8 and the outer threaded portion 421 of the second strut portion 4 . At this time, the tightening member 8 has a gap GA between itself and the first strut portion 3 and is not screwed with the first strut portion 3, as described above. Therefore, when the threaded engagement between the inner threaded portion 811 and the outer threaded portion 421 is released, the tightening member 8 can move freely in the axial direction (vertical direction). That is, when the threaded engagement between the inner threaded portion 811 and the outer threaded portion 421 is released, the tightening member 8 drops to the base 2 on the base surface 9 due to its own weight (see FIG. 4). As a result, in the adjustment work for adjusting the height of the underfloor panel 10, the work of rotating and moving the tightening member 8 with respect to the first strut portion 3 becomes unnecessary, and the working efficiency of the adjustment work is improved. can be done.

With the tightening member 8 arranged on the base 2 (the state shown in FIG. 4), the operation portion 61 made of a nut portion is rotated around the first support portion 3 using a tool such as a spanner. The height of the underfloor panel 10 can be adjusted by moving the second support column 4 in the axial direction (vertical direction) with the movement of the member 6 . At this time, since the operating member 6 has the flange portion 612 , when operating the operating portion 61 , a tool such as a wrench can be supported by the flange portion 612 from below.

After the adjustment work for adjusting the height of the underfloor panel 10, the pressing portion 82 is held with a wrench while the tightening member 8 is arranged at a position where the inner threaded portion 811 and the outer threaded portion 421 can be screwed together. It is made to rotate around the 2nd support|pillar part 4 using tools, such as. As a result, the tightening member 8 moves along the axial direction so as to approach the second support 4 according to the screw engagement between the inner thread 811 of the tightening member 8 and the outer thread 421 of the second support 4 . to move up. As the tightening member 8 moves, the pressing portion 82 presses the elastic portion 7 (elastic piece 71 ) provided below the external screw portion 421 . As a result, the elastic portion 7 is elastically deformed in the radial direction to restrict the axial movement of the second strut portion 4, making it possible to maintain the height position of the underfloor panel 10 after the height adjustment (FIG. 5). reference).

As described above, when the inner threaded portion 811 of the tightening member 8 and the outer threaded portion 421 of the second strut portion 4 are screwed together, the operating member 6 is covered with the cylindrical portion 81 of the tightening member 8. . As a result, it is possible to prevent the operation member 6 from being erroneously operated after the height of the underfloor panel 10 is adjusted. When the operation member 6 is operated to adjust the height of the underfloor panel 10, the threaded engagement between the inner threaded portion 811 and the outer threaded portion 421 is released, and the tightening member 8 is axially (up and down) direction), the operation member 6 can be exposed.

FIG. 6 is a diagram showing an operation member 6S according to a modification. 6A shows a perspective view of the operating member 6S, FIG. 6B shows a front view of the operating member 6S, and FIG. 6C shows a sectional view of the operating member 6S. The adjustment mechanism 5 in the bed bundle 1 may be configured to include an operation member 6S shown in FIG. 6 instead of the operation member 6 described above. The operating member 6S is integrally provided with an elastic portion 7 composed of a plurality of elastic pieces 71, similarly to the operating member 6 described above.

The operation member 6</b>S is fitted onto the first support column 3 so as to be axially (vertically) movable, and is operated when adjusting the height of the underfloor panel 10 . The operating member 6S has an operating portion 61S and a connecting portion 62S.

The operation portion 61S is a portion to which an operation force is applied to move the operation member 6S along the axial direction (vertical direction). The operation part 61S has an operation female screw part 611S formed of a female screw that screws together with the male screw part 31 on the inner peripheral surface facing the first post part 3, and the outer peripheral surface is formed in a hexagonal shape, for example. It is the nut part. The operation portion 61S is rotated around the first support portion 3 in order to move the operation member 6S along the axial direction (vertical direction).

The connecting portion 62S is a portion provided above the operating portion 61S and connected to the second support portion 4 . The connecting portion 62S has a stepped portion 621S and a plurality of connecting elastic pieces 623S provided with engaging portions 622S. The stepped portion 621S is recessed radially inward from the upper end of the operating portion 61S, and extends downward from the lower surface of the engaging projection 422 of the external thread forming member 42 assembled to the tubular portion 41 of the second support 4. can be contacted from The plurality of connecting elastic pieces 623S extend upward from the stepped portion 621S at predetermined intervals so as to surround the first strut portion 3 from the outside, and are elastically deformable in the radial direction. In the plurality of connecting elastic pieces 623S, engaging portions 622S are provided in connection regions with the stepped portions 621S. The engaging portion 622S is a portion that engages with the engaging protrusion 422 of the external thread forming member 42 .

In the connecting portion 62S, the stepped portion 621S is in contact with the lower surface of the engaging projection 422, and in a state where the engaging portion 622S is engaged with the engaging projection 422, the operation portion 61S is moved relative to the second column portion 4 during the rotating operation. It is connected to the external thread forming member 42 of the second strut portion 4 from below so as to be in an idling state. The connecting portion 62S is connected to the external thread forming member 42 by pressing the operating member 6S against the external thread forming member 42 from below. More specifically, the operating member 6S is pressed against the external thread forming member 42 from below with the connecting portion 62S directed upward. Then, the plurality of connecting elastic pieces 623S receives force from the inner peripheral surface of the engaging projection 422 and elastically deforms inward in the radial direction. When the operating member 6S is further pressed against the external thread forming member 42 in this state, the stepped portion 621S contacts the lower surface of the engaging projection 422 and the engaging portion 622S engages with the engaging projection 422. As shown in FIG. At this time, the plurality of connecting elastic pieces 623S are released from the force received from the engaging projections 422, elastically deform radially outward, and return to their original shapes. As a result, the engaging portion 622S is reliably engaged with the engaging projection 422, and the connecting portion 62S is connected to the external thread forming member . Thus, the connecting portion 62S can be connected to the external thread forming member 42 by a simple operation of pressing the operating member 6S against the external thread forming member 42 from below.

In the bed bundle 1 provided with the adjusting mechanism 5 including the operating member 6S, the operating member 6S is moved along the first support column 3 in response to the rotating operation of the operating portion 61S, thereby causing the external thread forming member 42 to move. The height of the underfloor panel 10 can be adjusted by moving the second support column 4 connected by the connecting portion 62S in the axial direction (vertical direction).

<Second embodiment>
Next, a bed bundle 1A according to a second embodiment of the present invention will be described with reference to FIGS. 7 and 8. FIG. FIG. 7 is a cross-sectional view showing the configuration of a floor truss 1A according to the second embodiment of the present invention, and FIG. 8 is a cross-sectional view of the essential parts of the floor truss 1A.

The floor bundle 1A includes a first strut portion 3 extending upward from the base 2, a second strut portion 4 extending further upward relative to the first strut portion 3, and an adjusting mechanism 5A. The floor truss 1A is configured in the same manner as the floor truss 1 according to the first embodiment except that the configuration of the adjusting mechanism 5A is different from that of the adjusting mechanism 5 described above. That is, the configurations of the first support section 3 and the second support section 4 provided in the floor bundle 1A are the same as those of the floor bundle 1 according to the first embodiment. Therefore, a detailed description of the first support section 3 and the second support section 4 of the floor bundle 1A is omitted.

The adjustment mechanism 5A provided in the floor bundle 1A is a portion for adjusting the height of the underfloor panel 10, that is, for adjusting the axial (vertical) position of the second support section 4 with respect to the first support section 3. is. The adjusting mechanism 5A includes an operating member 6A, an elastic portion 7A, and a tightening member 8A.

The operation member 6A is fitted around the first support column 3 so as to be movable in the axial direction (vertical direction), and is operated when adjusting the height of the underfloor panel 10. As shown in FIG. The operating member 6A has an operating portion 61A and a connecting portion 62A. The operation portion 61A has an operation female screw portion 611A that screws together with the post male screw portion 31 on the inner peripheral surface facing the first post portion 3, similar to the operation portion 61 in the floor bundle 1 according to the first embodiment. , and the outer peripheral surface is a nut portion formed, for example, in a hexagonal shape. The operating portion 61A is rotated around the first column portion 3 in order to move the operating member 6A along the axial direction (vertical direction). The connecting portion 62A is a portion that is provided above the operating portion 61A and is connected to the second strut portion 4 . The connecting portion 62A is recessed inward in the radial direction from the upper end of the operating portion 61A, similarly to the connecting portion 62 in the bed bundle 1 according to the first embodiment, and is connected to the cylindrical portion 41 of the second support column 4. A stepped portion 621A that can contact the lower surface of the engaging projection 422 of the assembled external thread forming member 42 from below, and an engagement that extends upward from the stepped portion 621A and engages with the engaging projection 422. and a portion 622A. In the connecting portion 62A, the stepped portion 621A is in contact with the lower surface of the engaging projection 422, and in a state where the engaging portion 622A is engaged with the engaging projection 422, the operating portion 61A is moved relative to the second column portion 4 during the rotation operation. It is connected to the second strut portion 4 from below so that it is in an idle state.

In the floor bundle 1A, by rotating the operation portion 61A made up of a nut portion around the first support portion 3 using a tool such as a wrench, the second support portion 4 is axially moved along with the movement of the operation member 6A. The height of the underfloor panel 10 can be adjusted by moving it (in the vertical direction). Further, the operation member 6A has a flange portion 612A protruding radially outward from the lower end of the operation portion 61A, similarly to the operation member 6 described above. As a result, when the operating portion 61A is operated to adjust the height of the underfloor panel 10, a tool such as a wrench can be supported from below by the flange portion 612A.

The elastic portion 7A is provided below the operation portion 61A, and restricts the movement of the operation member 6A in the axial direction (vertical direction) by elastic deformation due to the application of a pressing force in a predetermined direction, thereby preventing the movement of the second strut portion 4. to regulate. Details of the elastic portion 7A will be described later.

The tightening member 8A is externally fitted on the first column portion 3 on the lower side of the elastic portion 7A and the lower side of the operating member 6A. The tightening member 8A is externally fitted on the first strut portion 3 so that a gap GA is formed between the tightening member 8A and the first strut portion 3 . The tightening member 8A, like the tightening member 8 in the bed bundle 1 according to the first embodiment, is a tubular portion formed with an inner threaded portion 811A that is screwed onto the outer threaded portion 421 of the second strut portion 4. 81A, and a pressing portion 82A that presses the elastic portion 7A according to the screwing of the internal screw portion 811A.

The pressing portion 82A is formed in a tubular shape. The pressing portion 82A has, for example, a hexagonal outer peripheral surface so that it can be tightened using a tool such as a wrench. The inner peripheral surface of the pressing portion 82</b>A facing the first strut portion 3 is not formed with a threaded portion, and has a gap GA between itself and the first strut portion 3 . That is, the pressing portion 82A does not screw together with the male post threaded portion 31 of the first post portion 3 . As shown in FIG. 8, in the pressing portion 82A of the present embodiment, the upper end surface of the pressing portion 82A facing the lower surface of the operating portion 61A serves as a pressing surface 822A that presses the elastic portion 7A.

The inner threaded portion 811A formed on the inner peripheral surface of the cylindrical portion 81A is a threaded portion that screws together with the outer threaded portion 421 of the second support portion 4, and is screwed with the support male threaded portion 31 of the first support portion 3. does not fit. An inner threaded portion 811A is formed in the cylindrical portion 81A, and an inner peripheral surface facing the first support portion 3 has a gap between itself and the first support portion 3. As shown in FIG. The tightening member 8A is configured so that the operation member 6A is covered by the tubular portion 81A in a state where the inner threaded portion 811A is screwed with the outer threaded portion 421 of the second support 4. As shown in FIG.

After adjusting the height of the underfloor panel 10 according to the movement of the second support pillar 4 in the axial direction (vertical direction) with respect to the first support 3, the tightening member 8A externally inserted on the first support 3 is As the internal threaded portion 811A and the externally threaded portion 421 of the second strut portion 4 are screwed together, the pressing portion 82A of the tightening member 8A presses the elastic portion 7A provided below the externally threaded portion 421 . When a pressing force is applied by the pressing portion 82A, the elastic portion 7A is elastically deformed in the axial direction and restricts the movement of the second column portion 4 in the axial direction (vertical direction). As a result, it is possible to maintain the height position of the underfloor panel 10 after the height adjustment. More specifically, in a state in which the tightening member 8A is arranged at a position where the inner threaded portion 811A and the outer threaded portion 421 can be screwed together, the pressing portion 82A having, for example, a hexagonal outer peripheral surface is pressed with a wrench or the like. A tool is used to rotate the second strut portion 4 . As a result, the tightening member 8A moves along the axial direction so as to approach the second support 4 according to the screw engagement between the inner threaded portion 811 of the tightening member 8A and the outer threaded portion 421 of the second support 4. to move up. As the tightening member 8A moves, the pressing portion 82A presses the elastic portion 7A provided below the external screw portion 421. As shown in FIG. As a result, the elastic portion 7A is elastically deformed in the axial direction to restrict the movement of the second strut portion 4 in the axial direction (vertical direction), and the height position of the underfloor panel 10 after the height adjustment can be maintained. Become.

In this embodiment, as shown in FIGS. 7 and 8, the elastic portion 7A has a spring washer disposed between the operating portion 61A and the pressing portion 82A in the axial direction (vertical direction). is doing. A spring washer is a flat washer that has a partially cut and twisted shape. The elastic portion 7A configured by a spring washer is elastically deformable in the axial direction (vertical direction). With respect to the elastic portion 7A having such a configuration, the pressing portion 82A of the tightening member 8A pivots the elastic portion 7A toward the operation portion 61A in accordance with the screw engagement with the external thread portion 421 of the internal thread portion 811A. direction upwards. As a result, the elastic portion 7A formed by the spring washer is elastically deformed in the axial direction, and a phenomenon occurs such that the corner portion bites into both the pressing portion 82A and the operating portion 61A. Therefore, axial movement of the operating member 6A can be restricted, and along with this, axial movement (vertical direction) of the second strut portion 4 can be restricted. As a result, it is possible to maintain the height position of the underfloor panel 10 after the height adjustment.

In the adjustment work of adjusting the height of the underfloor panel 10 using the floor truss 1A, the movement of the second support 4 is restricted by releasing the pressure of the pressing portion 82A of the tightening member 8A against the elastic portion 7A. is released and the height of the underfloor panel 10 can be adjusted. Release of the pressure applied to the elastic portion 7A by the tightening member 8A is achieved by releasing the screw engagement between the inner threaded portion 811A of the tightening member 8A and the outer threaded portion 421 of the second strut portion 4. As shown in FIG. At this time, as described above, the tightening member 8A has a gap GA between it and the first strut portion 3 and is not screwed with the first strut portion 3, so that the inner screw portion 811A and the outer screw When the screw engagement with the portion 421 is released, it becomes freely movable in the axial direction (vertical direction). As a result, in the adjustment work for adjusting the height of the underfloor panel 10, the work of rotating and moving the tightening member 8A with respect to the first strut portion 3 is not required, thereby improving the work efficiency of the adjustment work. can be done.

With the tightening member 8A arranged on the base 2, the operation part 61A is rotated around the first support part 3 using a tool such as a wrench. 4 can be moved in the axial direction (vertical direction) to adjust the height of the underfloor panel 10 .

After the adjustment work for adjusting the height of the underfloor panel 10, the pressing portion 82A is held with a wrench while the tightening member 8A is arranged at a position where the inner threaded portion 811A and the outer threaded portion 421 can be screwed together. It is made to rotate around the 2nd support|pillar part 4 using tools, such as. As a result, the tightening member 8A moves along the axial direction so as to approach the second support 4 according to the screw engagement between the inner thread 811A of the tightening member 8A and the outer thread 421 of the second support 4. to move up. As the tightening member 8A moves, the pressing portion 82A presses upward the elastic portion 7A disposed between the pressing portion 82A and the operating portion 61A. As a result, the elastic portion 7A is elastically deformed in the axial direction to restrict the axial movement of the second strut portion 4, and the height position of the underfloor panel 10 after the height adjustment can be maintained.

Reference Signs List 1, 1A floor bundle 2 base 3 first support section 31 support male threaded section 4 second support section 41 cylindrical section 42 external thread forming member 421 external threaded section 43 holding section 5, 5A adjustment mechanism 6, 6A, 6S operating member 61, 61A, 61S operating portion 611, 611A, 611S operating female screw portion 612, 612A, 612S flange portion 62, 62A, 62S connecting portion 7 elastic portion 71 elastic piece 711 elastic female screw portion 72 tapered surface portion 7A spring washer (elastic portion )
8, 8A tightening member 81, 81A cylindrical portion 811, 811A internal screw portion 82, 82A pressing portion 9 base surface 10 underfloor panel

Claims (7)

A floor truss installed on the base surface and for supporting the subfloor panel, comprising:
a base installed on the base surface;
a first strut extending upward from the base;
A tubular portion that receives the upper portion of the first support, an external screw portion that is provided below the tubular portion, and a holding portion that is provided above the tubular portion and holds the underfloor panel. a second strut portion that is axially movable with respect to the first strut portion;
an adjustment mechanism for adjusting the axial position of the second strut with respect to the first strut,
The first support section has a support male screw section formed on its outer peripheral surface,
The adjustment mechanism is
an elastic portion provided below the outer threaded portion for restricting movement of the second strut portion in the axial direction by elastic deformation due to application of a pressing force in a predetermined direction;
An operation member is externally inserted on the upper side of the elastic portion so as to be movable in the axial direction with respect to the first support section, and has an inner peripheral surface facing the first support section that is threadedly connected to the male threaded section of the support. an operating female threaded portion that mates with the operating female threaded portion and is rotatably operated for movement along the axial direction; a connecting portion connected to the second strut portion so as to be in an idle state with respect to the operating member;
an inner threaded portion that is externally inserted into the first support column and is screwed into the outer threaded portion; and a pressing portion that presses the elastic portion in the predetermined direction in accordance with the threaded engagement of the inner threaded portion. and a tightening member. The tightening member is formed in a tubular shape extending upward from the pressing portion and is provided with the inner threaded portion. 2. The bed bundle of claim 1 , comprising a section. the elastic portion includes an elastic piece that extends downward from the operation portion and is elastically deformable in a radial direction;
The elastic piece has an elastic female thread portion formed on an inner peripheral surface facing the first post portion and screwed with the post male thread portion,
3. The floor according to claim 1 or 2 , wherein the pressing portion presses the elastic piece in the radial direction toward the first support portion according to screwing of the inner threaded portion with the outer threaded portion. bundle. The elastic piece has, on its outer peripheral surface, a tapered surface portion whose outer diameter decreases downward,
4. The bed bundle according to claim 3 , wherein said pressing portion is formed in a cylindrical shape provided outside said tapered surface portion, and has an inner peripheral surface smaller than a maximum diameter and larger than a minimum diameter of said tapered surface portion. the elastic portion has a spring washer arranged between the operating portion and the pressing portion in the axial direction;
The bed bundle according to claim 1 or 2 , wherein the pressing portion presses the spring washer toward the operating portion in the axial direction according to screwing of the inner threaded portion with the outer threaded portion. The bed bundle according to any one of claims 1 to 5 , wherein the operating member has a flange portion projecting radially outward from the lower end of the operating portion. The tightening member is provided so that a gap is formed between it and the first strut portion when the inner threaded portion is screwed to the outer threaded portion. A bed bundle as described above.

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