JP2006274695A - Column in double flooring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To constitute a floor board support for supporting a floor board in double flooring by a nut holding member requiring wear resistance and a tool fitting member requiring strength and integrate the two members by a simple and reliable engaging structure. <P>SOLUTION: In a column 1 of double flooring, a screw rod 4 is erected in an earth plate 3 placed on a foundation floor, and the floor board 6 is supported by the floor board support 5 spirally engaged with the screw rod 4. The floor board support 5 is constituted of both the nut holding member 8 to be spirally engaged with the screw rod 4 and the tool fitting member 9 which is integrated with the nut holding member 8 by the engaging structure and in which a tool fitting part 21 for rotating the floor board support 5 is formed in its upper surface. A support surface for supporting the floor board 6 is formed in both or either one of the nut holding member 8 and the tool fitting member 9. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a column that supports a floor board in a double floor that lays a floor board at a certain height from the foundation floor and secures a required space with the foundation floor.

  With regard to this support column, four screw rods are erected on the ground plate placed on the foundation floor, and the four corner portions of the floor plates that are assembled by the respective floor plate supports that hold the nuts screwed to the individual screw rods are supported. There is a thing of this support | pillar type (patent document 1). This type is suitable for the case where precise and highly accurate adjustment is required because the height of a plurality of floor boards to be assembled can be individually adjusted. On the other hand, the floorboard may be removed for maintenance or layout change. At this time, the body or object hits the floorboard support and rotates it, which may cause the level to go wrong. In order to prevent this, it is necessary to prevent the floor board support from rotating in a few cases. In the above-mentioned Patent Document 1, a pressure contact portion that presses against the screw rod is formed on the floor board support, thereby preventing rotation ( To prevent loosening).

  However, a tool or the like must be able to be engaged with the floor board support to finely adjust its height after the floor board is placed, and the floor board presser is fastened to the floor board support to fix the floor board. In order to secure the strength of the tool fitting portion and the screw portion necessary for these, the floor board support is made of a hard material. In this configuration, the pressure contact portion is in contact with the screw rod in a state of being in contact with the screw rod while the floor plate support screwed to the screw rod is rotated and set to a predetermined height. There are times when it is scraped off, and there is no need for it. In the previous Patent Document 1, a slit is formed in the floor board support so that it can be inserted from the side with respect to the screw rod, and the rotation required until the floor board support is set to a predetermined height. Although this situation is avoided by reducing the amount, the floor board support is rotated even when finely adjusting the height, and the pressure contact part and the screw rod are constantly rubbed, so the height adjustment is repeated. If it does, even the thing of patent document 1 may also wear out and there is a possibility that the anti-rotation effect may be reduced.

Furthermore, in the thing of patent document 1, while the slit groove gives elasticity to a press-contact part and prevents abrasion, the strength is reduced and looseness is generated between the nut and the screw rod to make it easy to wobble. As a result, there is a risk that the floor board will be loose. Furthermore, there is a possibility that the pressing force of the press contact portion is released and the rotation preventing effect is somewhat reduced.
JP 2004-76577 A

  The present invention solves such a problem, and includes a nut holding member for screwing a floor board support that supports the floor board with a screw rod, and a tool fitting portion that supports the floor board and engages a tool. The tool fitting member has two members, and each member can be made of a material suitable for the required function.

  Under the above-mentioned problems, the present invention provides a double floor which supports a floor board by a floor board support body in which a screw rod is erected on a ground plate placed on a foundation floor and screwed into the screw rod. In the support column, the floor plate support is constituted by a nut holding member that is screwed onto the screw rod, and a tool fitting member that is integrated with the nut holding member and an engagement structure and has a tool fitting portion formed on the upper surface. Further, the present invention provides a double floor column characterized in that a support surface for supporting a floor board is formed on both or one of a nut holding member and a tool fitting member. Specifically, the nut holding member is a structure formed of a resin material that is softer than the tool fitting member described in claim 2, and the tool fitting member is formed from the support surface described in claim 3. A structure in which a pin that protrudes from below into a fitting hole formed in the floor plate is provided so as to form a tool fitting portion on the upper surface of the pin, and the tool fitting portion on the upper surface of the support surface according to claim 4 The structure formed is provided.

  Further, according to the present invention, in the above-mentioned support column, the engagement structure between the nut holding member and the tool fitting member described in claim 5 is based on the insertion coupling, and the insertion coupling is performed in the insertion direction. 7. A structure provided with a locking structure for restricting the slipping of the floor plate, and a floor plate presser for pressing each corner of the assembled floor plate from above, below the tool fitting portion of the pin of the tool fitting member according to claim 6. The nut holding member according to claim 7, wherein the nut holding member has a pocket for holding the nut screwed to the screw rod so as not to rotate with respect to the floor plate support, and is formed on the outer periphery of the screw rod. 9. A structure in which a press-contact portion for press contact is formed, and a window that opens to the outer periphery facing the pocket of the nut holding member according to claim 8 is provided, and the nut is inserted into the pocket from this window, and the press-contact portion is formed above and below the pocket Shape The structure of claim 9, wherein the nut holding member pocket is provided with a structure in which a protrusion that presses the upper surface of the nut against the ceiling surface of the pocket portion from below is formed in the pocket of the nut. is there.

  According to the means of claims 1 to 4, the floor board support is at least a nut holding member in which a press-contact portion or a pocket is formed, and a tool fitting member in which a tool fitting portion or the like with which a tool can be engaged is formed. Since the nut holding member is composed of two members, the nut holding member can be composed of a material suitable for the required function, such as a soft hard-wearing material and the tool fitting member a hard high-strength material. In this case, since the nut holding member and the tool fitting member are integrated by the engagement structure, the integration operation is simple and quick.

  At this time, according to the means of claim 5, once inserted, it does not come out due to the locking structure that restricts the withdrawal in the inserting direction. Further, according to the means of claim 6, since the tool fitting member has strength, it is possible to form a thread portion provided with a female screw and a male screw having the same strength, and the floor plate presser is tightened. Made possible with components. According to the seventh aspect of the invention, the nut firmly supports the load applied to the floor plate, and the press contact portion prevents the floor plate support from rotating. Further, according to the means of claim 8, the nut can be easily taken into the pocket, while the nut is reliably prevented from rattling with respect to the screw rod, and the anti-rotation effect with respect to the screw rod can be stably obtained. According to the ninth aspect of the present invention, the nut is housed in a state of being pressed against the ceiling surface of the pocket by the protrusion in the pocket, so that play in the vertical direction is eliminated and rattling in the rotational direction of the nut is prevented. . Further, since the upper surface of the nut is pressed against the ceiling surface of the pocket, sinking of the floor board (floor board support) due to the load can be minimized.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 9 is a perspective view showing the relationship between the column and the floor board, and FIG. 7 is a cross-sectional view corresponding to AA in FIG. 9 in a state in which the floor board is supported by the column, but the column 1 of this example is on the foundation floor 2. The four screw rods 4 are erected from the four corners of the ground plate 3 to be fixed, and the floor plate support 5 is screwed to each screw rod 4. A double floor is constructed by individually supporting each other. This floor board support 5 is a tool fitting that fits a nut holding member 8 that holds a nut 7 screwed into the screw rod 4 and a tool that is assembled to the nut holding member 8 and rotates the floor board support 5. And a member 9.

  1 is a side sectional view of the nut holding member 8 and FIG. 2 is a plan view. The nut holding member 8 is a cup body having a large diameter in the upper part where an insertion hole 10 through which the screw rod 4 passes is formed at the center. It is what. A pocket 11 for holding the nut 7 is formed in the lower part so as to surround the insertion hole 10, and the diameter of the insertion hole 10 in a certain range above and below the pocket 11 is smaller than the diameter of the screw rod 4. Thus, the press contact portion 12 that presses the outer periphery of the screw rod 4 is formed. The pressure contact portion 12 serves as a detent that prevents the nut holding member 8 from rotating against the body or an object. 7 can be surely prevented, and a stable detent effect can always be obtained.

  Of course, the press contact portion 12 can be provided either above or below the pocket 11, but the press contact portion 12 is also a screw rod when the floor plate support 5 is adjusted to the full height. Since it is preferable to press-contact the outer periphery of 4, it is suitable to provide below. However, when it is desired to set the height adjustment allowance downward as much as possible, it is suitable to provide the upper and lower portions and set the formation range of the lower pressure contact portion as small as possible. In addition, the pressure contact portion 12 is generally configured by a hole having a diameter smaller than the diameter of the screw rod 4, but if it is configured by a convex portion formed intermittently in the circumferential direction, the floor plate support 5 is appropriately provided. The rotation resistance can be adjusted.

  The nut 7 may be a commercially available hex nut, and is accommodated in the pocket 11 so as not to rotate but to move up and down. For this reason, the cross-sectional shape of the pocket 11 is formed in a hexagonal shape. At this time, if the window 13 that opens to the outer periphery faces the pocket 11, the nut 7 can be inserted into the pocket 11 from the window 13. Easy to install. In addition, since the nut 7 once inserted must not come out, an appropriate removal prevention structure (not shown) is provided.

  The nut 7 housed in the pocket 11 has its upper surface pressed against the ceiling surface 11a of the pocket 11 so that vertical movement is completely restricted. In order to perform this pressure contact, in the present invention, a flexible protrusion 32 is formed on the upward surface 11 b of the pocket 11. FIG. 8 is an enlarged cross-sectional view of the main part of FIG. 7 showing the state of the protrusion 32 formed in the pocket 11, but the protrusion 32 of this example is the upward and downward direction of the pocket 11 that supports the flange 7 a of the nut 7. A protrusion 32 made of a flexible ridge is provided on the surface 11b along the direction in which the nut 7 is inserted. In addition, since the nut holding member 8 is comprised with resin, if the protrusion 32 is integrally formed in this, it will have flexibility.

  In this case, the height between the top of the protrusion 32 and the ceiling surface 11a is smaller than the height of the corresponding flange 7a, and when the flange 7a of the nut 7 is placed on the protrusion 32, the self The nut 7 is deformed (compressed or tilted) and pressed against the ceiling surface 11a. As a result, the nut 7 is pressed up and down between the protrusion 32 and the ceiling surface 11a in the pocket 11, and the play in the up and down direction is absorbed. A typical deformation of the protrusion 32 is that it tilts itself, but since the end of the flange 7a that contacts the protrusion 32 is naturally inclined outward, this induces a tilt. . In addition, although illustration is abbreviate | omitted, in order to make this inclination more reliable, it is also considered to form the protrusion 32 inclined beforehand. Further, the protrusion 32 may be provided so as to protrude in the horizontal direction from the inner surface of the pocket 11 as long as the nut 7 can be pressed in the vertical direction.

  In this manner, when the nut 7 with the flange 7a is used, if a protrusion is formed on the upward surface opposite to the bottom surface of the nut 7, stronger pressure contact is possible. On the other hand, in the case of using a nut having no wrinkles (not shown), the end of the nut is not inclined outwardly, so that a protrusion that is tilted in advance is formed on the first upward surface 14a. become.

  The upper surface of the nut holding member 8 is formed flat, and in this example, this surface is a support surface 8 a that supports the floor plate 6. A groove 14 extending from the outer periphery to the vicinity of the insertion hole 10 is formed on the support surface 8a. The groove 14 is not a constant width from the bottom to the upper surface, and the upper surface has a constant thickness and a predetermined width. An overhanging portion 15 that projects into the groove 14 is provided. The above nut holding member 8 is suitably a resin product by injection molding in consideration of moldability, weight, cost, and the like. In the case of using a resin product, it is preferable to form an appropriate groove or the like that is recessed from the outer peripheral surface in order to remove the thick portion (to obtain a stealing shape), and to equalize the thickness. This resin is directly formed with a protrusion 32 that is pressed against the screw rod 4 and rotated (when screwed to the screw rod 4) and presses against the pressure contact portion 12 or the nut 7 to restrict vertical movement. For example, a nylon-based resin which is soft and has high elasticity and is hard to wear is suitable.

  FIG. 3 is a side sectional view of the tool fitting member 9 and FIG. 4 is a plan view. However, the tool fitting member 9 of this example has a second pedestal 17 having a flat upper surface superimposed on the first pedestal 16. The upper surface of the second pedestal 17 serves as a support surface 9a that supports the floor board 6. Further, in this example, a pin 18 projects from the support surface 9a. In the center of the pin 18, a hole 19 having a diameter slightly larger than that of the press contact portion 12 is formed below, and a screw portion 20 in which a female screw 20 a having a small hole diameter is formed is formed above. Above that, a tool fitting portion 21 made of an insertion hole having a hexagonal shape or the like is formed. As can be seen from FIG. 7, the hole 19 in this case accommodates the tip of the screw rod 4 when the floor board support 5 is adjusted and lowered downward, and the screw portion 20 presses the floor board 6. The floor plate presser 30 is screwed in, and the tool fitting portion 21 is engaged by inserting a tool 29 such as a hexagon wrench.

  In this case, the first pedestal 16 has the same shape as the cross section of the groove 14 of the nut holding member 8, and the second pedestal 17 is set to have the same shape as the cross sectional shape of the overhang portion 15. Therefore, as shown in FIG. 5, the first pedestal 16 and the second pedestal 17 can be inserted into the groove 14 and the overhanging portion 15 without any backlash. The engaging structure 22 by plug-in connection is configured. At this time, the tool fitting member 9 is subjected to a force to be pulled upward by screwing the floor plate presser 30, but the overhang 15 extends over the entire circumference of the first pedestal 17. , Do not escape upward. In addition, in this example, the support surface 8a of the nut holding member 8 and the support surface 9a of the tool fitting member 9 are flush with each other so that the floor plate 6 is supported by the two support surfaces 8a and 9a in the widest possible area. I have to. Further, claws 23 project outwardly on both side surfaces of the second pedestal 17, and nails 24 project inwardly on both side surfaces of the overhanging portion 15. A locking structure 25 is constituted by 23 and 24.

  5 and 6 are perspective views in the case where the nut holding member 8 and the tool fitting member 9 are integrated, as described above, the tool fitting member is formed by the engagement structure 22 formed by horizontal insertion coupling. When 9 is inserted into the nut holding member 8, the claws 23 and 24 are engaged with each other (the locking structure 25 acts), so that they do not come out to the side (of course, there is no backlash). The tool fitting member 9 is also suitable as a resin product, like the nut holding member 8, but needs to be able to withstand the rotational pressure of the tool 29 inserted into the tool fitting portion 21 and the floor plate retainer 30 is screwed. Since it is necessary to withstand the resultant force, a hard and high-strength resin such as polycarbonate resin is suitable.

  In addition, although the above engaging structure 22 is the horizontal insertion coupling | bonding which inserts the tool fitting member 9 in the nut holding member 8 from the side, you may insert from the upper and lower sides. In this case, depending on the engagement structure 22, the shape and structure of members such as the groove 14, the overhanging portion 15, the first pedestal 16, and the second pedestal 17 may be different. Specifically, it is conceivable that the floor plate 6 is supported only by the most supporting surface 8a of the nut holding member 8 or the supporting surface 9a of the tool fitting member 9, but the tool fitting member 9 and the nut holding member 8 Since there is a concern that the play between the two may be transmitted to the floor plate 6, at least the nut holding member 8 that holds the nut 7 is provided with the support surface 8 a directly. However, when the floor plate 6 is fastened to the floor plate support 5 using the floor plate presser 30, an upward force is applied to the tool fitting member 9, so that the locking structure cannot be easily separated once integrated. 25 is required. As this locking structure 25, for example, a structure in which it is rotated and locked after being inserted is conceivable, but at this time, the horizontal direction is set so as not to rotate together with the fastening of the floor plate presser 30. A structure that can be locked simply by being inserted by a locking claw or the like (not shown) protruding to the right is conceivable.

  By the way, although this invention comprises the floor-plate support body 5 by two members, the nut holding member 8 and the tool fitting member 9, this is divided into two for the purpose of only changing a material. is not. Since it is very difficult to integrally form the nut holding member 8 and the tool fitting member 9 having a complicated shape as described above, the shape is easy to form and can be reliably integrated. The two are the nut holding member 8 and the tool fitting member 9 having the above-described shape. Specifically, when the inner diameter is irregularly increased or decreased according to the respective functions such as the press contact portion 12, the insertion hole 10, the hole 19, the screw portion 20, and the tool fitting portion 21 from the bottom, it is integrally formed. Although it is difficult, it becomes easy if it is composed of two members as in the present invention. The number of members may be three or more. However, as the number of members increases, the cost and assembling work are increased. Therefore, the number of members should be as small as possible, and the present invention responds to this.

  Next, the case where the floor board 6 is supported by the above-described floor board support 5 will be described with reference to FIG. First, the floor plate support 5 in which the nut holding member 8 and the tool fitting member 9 are integrated with each screw rod 4 is screwed to a predetermined height (may be screwed in advance in the manufacturing stage). During this time, the pressure contact portion 12 is rubbed against the screw rod 4, but the wear can be prevented by configuring the nut holding member 8 having the pressure contact portion 12 with a material that is hard to wear. Next, the ground plate 3 is placed on the foundation floor 2 and installed, and the fitting holes 26 formed on the back surface of the corner portion of the floor plate 6 are inserted into the pins 18 to place the floor plate 6 on the floor plate support 5. . At this time, in order to prevent noise between the floor plate 6 and the tool fitting member 9, it is preferable to interpose a ring 27 such as a nonwoven fabric on the upper surfaces of the second pedestal 17 and the nut holding member 8 (see FIG. 6). .

  When the four floor boards 6 are supported by the respective floor board supports 5, it is sufficient that the height of each floor board 6 is equal. If not, the floor boards 6 are formed concentrically with the fitting holes 26 on the upper surface. It engages with the tool fitting portion 21 through a tool 29 such as a wrench from the adjusting hole 28 (which is a counterbore hole for accommodating the flange portion of the floor plate presser 30). And the tool 29 is operated, the floor board support body 5 is rotated to the left or the right, and it is made the predetermined height. Also at this time, the pressure contact portion 12 is rubbed against the screw rod 4, but the wear is prevented by the above-described material. On the other hand, the rotational pressure of the tool 29 is applied to the tool fitting portion 21, but the tool fitting member 9 on which the tool fitting portion 21 is formed is made of a high-strength material to withstand this pressure. It will be.

  After this operation, the floor board presser 30 is inserted into the adjustment hole 28 and screwed into the screw portion 20 to fix the floor board 6 to the floor board support 5. However, this operation may be omitted at places where the floor plate 6 does not need to be fixed. Although the strength is also required for the screw portion 20 at this time, since the screw portion 20 is formed on the high-strength tool fitting member 9, it can withstand the strength. If the above operation is performed at the collection point of each floor board 6, the laying operation of the floor board 6 is completed.

  FIG. 10 is a perspective view of another support column according to the present invention, and FIG. 11 is a perspective view of a floor plate support. In this example, the support column 41 has two screw rods 4 erected from the corners of the ground plate 3. The floor plate support 45 is screwed onto the screw rod 4. This support 41 is a border made by cutting the floor board 6 in accordance with the width of the border part, for example, in order to fill a gap (border part) generated in the case of the wall 31 of the room when the floor board 6 is sequentially spread. It is used for supporting the floor board 46 for use, and is installed along the wall 31 of the room. The floor board support body 45 of this example is also the same as that of the nut holding member 48 and the tool fitting member 49, but the floor board support body 45 supports the side 46a on the cut side of the floor board 46. Therefore, the adjustment hole 28 and the fitting hole 26 do not exist in the floor board 46. Therefore, the pin 18 described above is not provided in the tool fitting member 49 of this example, the entire upper surface of the second pedestal 17 is flattened to be flush with the upper surface of the nut holding member 48, and both are supported by the support surface 48a. 49a, and the tool fitting portion 21 is provided through the upper surface of the second pedestal 17.

  Similarly, since the floor plate presser 30 is not screwed together, the above-described screw portion 20 is not provided. Moreover, in this example, the hole 19 which accommodates the front-end | tip of the screw rod 4 mentioned above for space reasons is not provided, but the distance between the opposite sides of the hexagonal shape of the tool fitting portion 21 is set to the outside of the screw rod 4 instead. It is set larger than the diameter dimension. Thereby, the front-end | tip of the screw rod 4 can be accommodated in the tool fitting part 21, and the height adjustment margin to the downward direction of the floor board support body 45 can be ensured to the maximum. Note that the engagement structure 22 and the locking structure 25 provided between the tool fitting member 49 and the nut holding member 48 are necessary, and these are the same as described above. In this way, the nut holding member 48 can be used with the same structure as the nut holding member 8 described above, which is efficient.

It is a cross-sectional side view of a nut holding member. It is a top view of a nut holding member. It is a cross-sectional side view of a tool fitting member. It is a top view of a tool fitting member. It is a perspective view which shows integration of a nut holding member and a tool fitting member. It is a perspective view which shows integration of a nut holding member and a tool fitting member. FIG. 10 is a cross-sectional view corresponding to AA in FIG. 9 showing a state in which the floor board is supported by the floor board support screwed to the screw rod. It is a principal part expanded sectional view of FIG. 7 which shows the state which the protrusion formed in the pocket press-contacted to the nut. It is a perspective view which shows the relationship between a support | pillar and a floor board. It is a perspective view which shows the relationship between the support | pillar and floor board of another example. It is a perspective view of a floor board support body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Foundation floor 3 Grounding plate 4 Screw rod 5 Floor board support body 6 Floor board 7 Nut 7a ８ 8 Nut holding member 8a 支持 support surface 9 Tool fitting member 9a 〃 support surface 10 Insertion hole 11 Pocket 11a Ceiling surface 11b Direction surface 12 Pressure contact portion 13 Window 14 Groove 15 Overhang portion 16 First base 17 Second base 18 Pin 19 Hole 20a Female screw 20 Screw portion 21 Tool fitting portion 22 Engagement structure 23 Claw 24 Claw 25 Locking structure 26 Fitting Joint hole 27 Ring 28 Adjustment hole 29 Tool 30 Floor board retainer 31 Wall 32 Projection body 41 Prop 45 Floor board support body 46 Floor board 46a Side of floor board cut side 48 Nut holding member 48a Support surface of hook 49 Tool fitting member 49a Support surface

Claims (9)

  In a double-floor strut that supports a floor board by a floor board support that is raised from a grounding plate placed on the foundation floor and screwed into the screw bar, the floor board support is a nut holding member that is screwed into the screw bar. And a tool fitting member integrated with a nut holding member and an engagement structure and having a tool fitting portion for turning a floor plate support on the upper surface, while the nut holding member and the tool fitting member A double-floor strut characterized in that a support surface for supporting a floor board is formed on both or one side.   The double floor support according to claim 1, wherein the nut holding member is formed of a resin material that is softer than the tool fitting member.   3. The double tool according to claim 1 or 2, wherein the tool fitting member has a pin projecting from below into a fitting hole formed in the floor plate from the support surface, and a tool fitting portion is formed on the upper surface of the pin. Floor support.   The double floor support according to claim 1 or 2, wherein the tool fitting member has a tool fitting portion formed on the upper surface of the support surface.   The engagement structure between the nut holding member and the tool fitting member is based on plug-in coupling, and the plug-in coupling is provided with a latching structure for restricting withdrawal in the plug-in direction. Item 1. Double-floor column.   4. The double floor column according to claim 3, wherein a thread portion for fastening a floor plate presser for pressing the floor plate from above is formed below the tool fitting portion of the pin of the tool fitting member.   The nut holding member has a pocket that holds the nut screwed to the screw rod so as not to rotate with respect to the floor plate support, and is formed with a pressure contact portion that presses against the outer periphery of the screw rod. Term double floor prop.   The double-floor column according to claim 7, wherein a window that opens to the outer periphery facing the pocket of the nut holding member is provided, the nut is inserted into the pocket through the window, and press contact portions are formed above and below the pocket.   8. The double-floor column according to claim 7, wherein the nut holding member has a pocket formed with a protrusion that presses against the lower surface of the nut and presses the upper surface of the nut against the ceiling surface of the pocket from below.