JPH07189461A - Support device of double floor panels - Google Patents

Abstract

PURPOSE:To upgrade a mounting capacity of a panel stopper, and what is more, to protect an elastic engagement unit of a spacer after mounted from damages by providing a plurality of guide ribs and holding back the inclination of a screwed shaft of the panel stopper. CONSTITUTION:A plurality of guide ribs 113 are provided where a screwed shaft 71 of a panel stopper 70 is arranged to be insertable thereinto straightly along the shaft. Even when the screwed shaft 71, after inserted, tries to be inclined inside a cylindrical part 110 of a spacer 60, it will come into contact with the guide ribs 113 so that the inclination may be inhibited. As a result, when a floor panel 20 is inclined to float upward and a pull-out force acts on the panel stopper 70, the inclination of the screwed shaft is inhibited, which prevents the pull-out force from being maldistributed to only one out of the plurality distribute the of elastic engagement units. It is, therefore, possible to distribute the pull-out force the plurality of the elastic engagement units constantly and equally and prevent the elastic engagement units 112 from being damaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting device for a floor panel of a double floor, and more particularly to an improvement of a supporting device for a floor panel of a double floor, which is capable of fixing the floor panel by a panel retainer. .

[0002]

2. Description of the Related Art Heretofore, as a support device for a floor panel of this type of double floor, there has been proposed one in which a panel retainer can be attached with one touch (for example, Japanese Patent Laid-Open No. 1-304261).
Gazette, Jitsukaihei 4-51532 gazette, etc.). Also, FIGS.
As shown in FIG. 8, a support leg 200 is provided upright on the floor at a predetermined interval, a support plate 210 is fixed to the support leg 200 in a height-adjustable manner, and is fixed to an upper surface of the support plate 210. , A spacer 220 integrally molded with resin, and this spacer 2
The floor panel 230 placed on the upper surface of the
A supporting device including a panel retainer 240 that is pressed against the upper surface of 20 is also known.

Spacer 22 in the above conventional supporting device
As shown in FIG. 17, 0 denotes a ring portion 221 which covers the support plate 210 from above, four partition portions 222 radially extending inward from the ring portion 221, and the partition portions 222. And a cylindrical portion 223 which is held in the center of the ring portion 221 and into which a screw 250 for fixing the panel retainer 240 is inserted.

Further, the ring-shaped protruding edge of the ring portion 221 has
As shown in FIG. 18, a claw portion 225 that protrudes inward in the radial direction and that is hooked on the lower surface of the support plate 210 is formed on the inner side surrounded by the pair of slits 224, 224. It is formed at a position close to one of the two partition parts 222.

[0005]

However, among the above-mentioned conventional supporting devices, in the former case, the panel retainer can be mounted on the spacer with one touch, but when the panel retainer is installed, the panel retainer moves straight forward. There is a problem that there is difficulty in sex. In the latter case, the spacer 220
There is a problem that a so-called weld defect at the time of molding due to the slit 224 is likely to occur in the vicinity of the claw portion 225 surrounded by the pair of slits 224 formed in 1.

That is, the slits 224 for promoting the elastic deformation are formed on both sides of the claw portion 225 of the spacer 220. However, with the slit 224, the spacer 220
In the injection molding die, in the vicinity of the molding portion of the claw portion 225 surrounded by the pair of slits 224, branching and coupling of the resin flow easily occur. For this reason, the claw portion 225 surrounded by the pair of slits 224 is likely to cause non-uniformity in strength or a so-called weld line to cause damage.

Further, the claw portion 2 surrounded by the pair of slits 224
Since 25 is positioned close to one of the adjacent partition parts 222, one partition part to which the claw part 225 approaches when the spacer 220 is pulled upward. It was easy for the power to be omnipresent in the part 222. Therefore, the claw portion 225
From the root of one partition 222 that is close to
There is also a problem that 21 is easily damaged. (Object of the Invention) The present invention has been made in view of the above-mentioned problems of the conventional support device for a floor panel of a double floor, and the invention according to claim 1 provides an attachment property of a panel retainer. Intended to improve.

The second aspect of the present invention is intended to make it possible to retighten or remove the panel pressing member by rotating the panel pressing member. The object of the invention according to claim 3 is to eliminate the conventionally required slits to prevent the occurrence of so-called weld defects during molding and to prevent the spacer from being pulled upward. The purpose of this is to prevent the uneven distribution of force in the case of doing so and to prevent the spacer from being damaged.

The invention described in claim 4 is intended to achieve the objects of the inventions described in claims 1 and 3 at the same time. The fifth aspect of the present invention is intended to facilitate the retightening and removal of the panel retainer.

[0010]

The present invention is to achieve the above-mentioned object, and the contents thereof will be described below with reference to the embodiments shown in the drawings. In the invention according to claim 1, the panel retainer (70) is provided with a head (72) that abuts on an upper surface of the floor panel (20), and a screw shaft (7) hung from a lower surface of the head (72).
1) and, the spacer (60) is provided with a panel retainer (70).
The tubular portion (110) into which the screw shaft (71) of
Inside the (110), a plurality of elastic engaging portions that are radially arranged, project inward in the radial direction, and engage with the screw shaft (71).
(112) and located within the interval between the adjacent elastic engagement portions (112),
A plurality of guide ribs (1) extending in the insertion direction of the screw shaft (71).
13) and are provided.

According to a second aspect of the present invention, the plurality of elastic engaging portions (112) each have a screw arranged so as to correspond to one circumference of the screw groove of the screw shaft (71) of the panel retainer (70). It is characterized in that mountains (115) were formed in each. In the invention according to claim 3, a plurality of partition parts (100) extending radially are fitted into the spacer (60) within the space between the adjacent floor panels (20).
And a plurality of claws (93) protruding inward in the radial direction that are located substantially in the center of adjacent spaces of the plurality of partitions (100) and are caught by the support plate (50), and inward in the radial direction. And a plurality of abutting portions (94) that abut on the outer periphery of the support plate (50).

The invention according to claim 4 is the panel retainer (70).
The head (72) that abuts the upper surface of the floor panel (20), and the screw shaft (71) that is hung from the lower surface of the head (72). A tubular portion (110) into which the screw shaft (71) of (70) is inserted, and radially extending from the tubular portion (110),
A plurality of partition parts (100) that fit into the space between the adjacent floor panels (20), and each of the plurality of partition parts (100) are located substantially at the center of the space between the adjacent space parts, and on the support plate (50). The plurality of claws (93) that project inward in the radial direction to be caught, and the plurality of abutment parts (94) that project inward in the radial direction and contact the outer periphery of the support plate (50), respectively. Inside the portion (110), arranged radially, projecting radially inward,
A plurality of elastic engaging portions (112) that mesh with the screw shaft (71),
A plurality of guide ribs (113) are provided which are located within the space between the adjacent elastic engagement portions (112) and extend in the insertion direction of the screw shaft (71).

The invention according to claim 5 is the panel retainer (70).
A rotation operation portion (for example, a hexagonal hole 73, a recess portion 74, a coin groove 76) for rotating the panel retainer (70) is formed on the surface of the.

[0014]

Therefore, according to the invention of claim 1,
Align the screw shaft (71) of the panel retainer (70) with the guide ribs (11
It can be inserted straight along 3). Also, after inserting, screw shaft
Even if the (71) tries to incline in the tubular part (110) of the spacer (60), the screw shaft (71) comes into contact with the guide rib (113) in the tubular part (110), so that the screw shaft (71) The inclination can be prevented. Therefore, even if the floor panel (20) tries to float upward and a pull-out force is applied to the panel retainer (70) in an obliquely upward direction, the inclination of the screw shaft (71) is prevented, so that a plurality of Among the elastic engaging portions (112), the pull-out force is not unevenly distributed only in one elastic engaging portion (112). Therefore, the pulling-out force can always be evenly distributed to the plurality of elastic engaging portions (112), so that the elastic engaging portions (112) can be prevented from being damaged.

According to the second aspect of the invention, the screw thread (115) of the elastic engaging portion (112) is arranged so as to correspond to one circumference of the screw groove of the screw shaft (71) of the panel retainer (70). Therefore, the screw shaft (71) of the panel retainer (70) can be retightened by rotating the panel retainer (70) as necessary. According to the invention described in claim 3, since the claw portion (93) does not have the slit conventionally required, it is possible to prevent the occurrence of so-called weld failure during molding.

Further, by eliminating the slit, it is expected that rattling will occur between the spacer (60) and the support plate (50). To prevent this rattling, use a plurality of contact parts (94)
This is prevented by making contact with the outer circumference of (50).
That is, in order for the claw portion (93) to be caught by the support plate (50), the claw portion (93) must ride over the support plate (50). Therefore, the bending of the spacer (60) itself and the gap set between the spacer (60) and the support plate (50) are used.

However, due to the gap, the spacer
Rattling may occur between the (60) and the support plate (50). Therefore, by making the contact portion (94) project into the gap, it is possible to prevent the occurrence of rattling between the spacer (60) and the support plate (50). In addition, by positioning each claw portion (93) substantially at the center of the adjacent spaces of the plurality of partition portions (100), the spacers (60) are adjacent to each other when an upward pulling force is exerted. The force can be evenly distributed on the left and right sides of the partition part (100).

According to the invention described in claim 4, the effects of the invention described in claims 1 and 3 can be expected at the same time. According to the invention described in claim 5, the panel retainer is provided via the rotary operation portion (for example, the hexagonal hole 73, the recessed portion 74, the coin groove 76) formed on the surface of the panel retainer (70).
Can rotate (70).

[0019]

1 to 12 show a first embodiment of the present invention. FIG. 1 is an exploded perspective view, FIG. 2 is a schematic sectional view showing a working state, and FIG. 3 shows a spacer and a panel retainer. FIG. 4 is a plan view of the spacer, FIG.
Is a bottom view of the spacer, FIG. 6 is a partial perspective view of the spacer, FIG. 7 is a partial cross-sectional view of the spacer attached to the support plate, FIG. 8 is an enlarged cross-sectional view of the cylindrical portion of the spacer, and FIG. 9 is a panel retainer. 10 is a cross-sectional side view, FIG. 10 is a plan view of the panel retainer, FIG. 11 is a partial cross-sectional side view showing a state in which the spacer and the panel retainer are connected, and FIG. 12 is a spacer and the panel retainer. The top view which shows the connected state is each shown.

In FIGS. 1 and 2, reference numeral 10 denotes a support device for a floor panel 20 having a double floor. The support device 10 is a floor surface 30.
The plurality of floor panels 20 are fixed to each other at predetermined intervals, and the floor panels 20 are fixed on the adjacent supporting devices 20 by crossing the floor panels 20, so that the floor panels 20 are lifted upward from the floor surface 30.
Although not shown, cables and ducts (not shown) can be wired or piped in the space between the floor panel 20 and the floor panel 30.

As shown in FIGS. 1 and 2, the supporting device 10 is roughly classified into a supporting leg 40 standing upright on a floor surface 30 at a predetermined interval, and a height adjustable on the supporting leg 40. A supporting plate 50 to be fixed, a spacer 60 fixed to the upper surface of the supporting plate 50, and a floor panel placed on the upper surface of the spacer 60.
20 is provided with a panel retainer 70 for pressing the spacer 20 toward the upper surface of the spacer 60.

As shown in FIGS. 1 and 2, each of the support legs 40 has a bottom plate 41 placed on the floor surface 30 and a bolt shaft 42 extending upward from substantially the center of the upper surface of the bottom plate 41. It consists of and. As shown in FIGS. 1 and 2, the bottom plate 41 is composed of a substantially rectangular metal plate. Also, the bottom plate 41
1, as shown in FIG.
A plurality of them are formed at predetermined intervals. These through holes
Although not shown, an adhesive used for bonding the bottom plate 41 onto the floor surface 30 flows into the space 43.

The bolt shaft 42 is made of metal and, as shown in FIGS. 1 and 2, its lower end is welded to the center of the bottom plate 41. Although the support leg 40 is composed of the bottom plate 41 and the bolt shaft 42, the support leg 40 is not limited to this, and the support leg 40 is excluded.
May be composed of only the bolt shaft 42. The support plate 50
As shown in FIGS. 1 and 2, it comprises a nut portion 51 screwed into the bolt shaft 42 and a base plate 52 fixed to the nut portion 51.

As shown in FIG. 1, the base plate 52 is made of a substantially disc-shaped metal plate. And base plate
A central hole 53 is formed at the center of the 52 through which the bolt shaft 42 passes. The central hole 53 is formed on the lower surface of the base plate 52 with the central hole 53 and the screw hole of the nut portion 51 aligned. The nut portion 51 of is welded. Further, as shown in FIG. 1, the base plate 52 is provided with a plurality of convex portions 54 ... Arranged in the circumferential direction and extending substantially vertically in the upward direction. In this embodiment, four convex portions 54 are radially arranged, and more specifically, the base plate 52 is notched in a U shape and each notched portion is formed.

Further, on the upper surface of the base plate 52, as shown in FIG.
As shown in, a rectangular cushion member 80 having a predetermined thickness and slightly smaller than the base plate 52 is fixed. The cushion material 80 is compressed between the bottom surface of each floor panel 20 and prevents rattling of each floor panel 20. As shown in FIGS. 1 and 3 to 5, the spacer 60 is roughly divided into
A ring portion 90 that covers the base plate 52 from above, and four partition portions that extend radially inward from the ring portion 90 and that respectively cover the protrusions 54 of the base plate 52 and that have the same number as the protrusions 54. 100 ... and these partition parts 100 hold the central part of the ring part 90, and the screw shaft 71 of the panel retainer 70.
And a tubular portion 100 into which the is inserted. And spacer 6
0 is integrally formed of resin such as POM having appropriate rigidity and elasticity.

As shown in FIG. 3, the ring portion 90 has an upper wall 91 placed on the upper surface of the base plate 52, and a ring extending downward from the outer circumference of the upper wall 91 so as to extend from the outer circumference of the base plate 52. A side wall portion 92 having a large inner circumference. As shown in FIGS. 3 to 7, on the inner peripheral surface of the side wall portion 92, the adjacent partition portions 10 are formed.
It is located almost at the center within the interval of 0, protrudes inward in the radial direction to be hooked on the base plate 52, and has the same number as the partition part 100.
.. and four abutting portions that are located above each of the pawl portions 93, project inward in the radial direction, and abut on the outer periphery of the base plate 52, respectively. 94 ... and.

As shown in FIGS. 6 and 7, the claw portion 93 has a sawtooth shape with its slope facing downward, and its upper surface has a base plate 52.
Is caught on the underside of. These claws 93 are positioned substantially in the center of each space between the adjacent partition parts 100, because when the spacer 60 is pulled upward, the force is applied to the two adjacent partition parts. This is to ensure that they are evenly distributed to the left and right with respect to 100. In this way, the pull-out force is evenly distributed to the two adjacent partition parts 100, so that the ring part 90 is prevented from being damaged. Further, with respect to the pull-out force to the upper side, the ring portion 90 is bent by the elastic force of the resin so that the partition portion between the two partition portions 100 adjacent to each other with the claw portion 93 as the center warps upward. However, the ring portion 90 is prevented from being damaged.

As shown in FIGS. 6 and 7, each of the abutting portions 94 has a rib shape extending vertically, and its tip portion abuts on the outer periphery of the base plate 52. These abutting portions 94 are for preventing rattling due to making the inner circumference of the side wall portion 92 larger than the outer circumference of the base plate 52. That is, in order for the claw portion 93 to pass over the outer periphery of the base plate 52 and be caught on the lower surface thereof, the inner periphery of the side wall portion 92 must be bent so as to slightly expand its diameter against the elasticity of the resin. However, in order to prevent the generation of resin welds, the side wall 92 is provided with a claw portion.
No slit is formed to make the 93 easily bendable.

Therefore, by making the inner circumference of the side wall portion 92 larger than the outer circumference of the base plate 52, it is possible to overcome the outer circumference of the base plate 52 with a slight bending of the side wall portion 92 itself. However, if the inner circumference of the side wall portion 92 is made larger than the outer circumference of the base plate 52, after the claw portion 93 is caught on the lower surface of the base plate 52, a gap is formed between the inner circumference of the side wall portion 92 and the outer circumference of the base plate 52. It may cause rattling.

Therefore, by making the contact portion 94 project inward in the radial direction from the inner peripheral surface of the side wall portion 92, it is possible to prevent the occurrence of rattling between the inner periphery of the side wall portion 92 and the outer periphery of the base plate 52. Is what you are trying to do. In addition, in the embodiment shown in the drawings, the contact portion 94 is formed above each claw portion 93, but it is not limited to this, and may be formed within the interval between the adjacent claw portions 93. Further, the number of contact portions 94 is not limited to four, which is the same number as the claw portions 93, and may be formed in a larger number or a smaller number than the claw portions 93.

Further, the upper wall 91 of the ring portion 90 has a structure shown in FIGS.
As shown in, an auxiliary hole 95 is formed directly above each claw portion 93 and penetrates vertically. Each auxiliary hole 95
It is used for die cutting at the time of molding the claw portion 93. further,
The wall thickness of the upper wall 91 of the ring portion 90 is smaller than the thickness of the cushion material 80. Therefore, the cushion material 80 includes the lower surface of the floor panel 20 placed on the upper surface of the ring portion 90 and the support plate 50.
Between the base plate 52 and the upper surface of the base plate 52.

The cushion material may be fixed to the upper surface of the ring portion 90 so that the cushion material is compressed between the upper surface and the lower surface of the floor panel 20. Each partition 100
As shown in FIGS. 1 and 3-5, is a piece, and the lower surface of the outer end portion is connected to the upper surface of the upper wall 91 of the ring portion 90.
The inner end portion is connected to the outer circumference of the tubular portion 100. And 4
With the partition part 100 of the book, the upper surface of the upper wall 91 of the ring part 90 is
The floor is divided into individual parts, and each of the four corners of the floor panel can be placed within the space between the adjacent partition parts 100.

Further, as shown in FIG. 5, recesses 101 into which the protrusions 54 of the base plate 52 are fitted are formed on the lower surface of each partition 100. The protrusions 54 of the base plate 52 are fitted in the recesses 101, respectively, thereby preventing the ring portion 90 from rotating with respect to the base plate 52. As shown in FIG. 8, the tubular portion 100 includes an insertion hole 111 into which the screw shaft 71 of the panel retainer 70 is inserted and an insertion hole 1
A plurality of elastic engaging portions that are radially arranged in the housing 11, project inward in the radial direction, and engage with the screw shaft 71 of the panel retainer 70.
, And a plurality of guide ribs that are located within the interval between the adjacent elastic engagement portions 112 and that extend in the insertion direction of the screw shaft 71.
113 ... and equipped.

As shown in FIG. 8, the insertion hole 111 has an inner diameter slightly larger than the outer diameter of the screw shaft 71 of the panel retainer 70. As shown in FIG. 8, a total of four elastic engagement portions 112 are arranged on an extension line of each partition portion 100. Each elastic engagement portion 111 has an elastic piece 114 that protrudes obliquely downward into the insertion hole 111 of the tubular portion 100, and a downward projecting radially inward cross-sectional chevron from the lower end of the elastic piece 114. And a single thread 115 that fits into the thread groove of the shaft 71.

As shown in FIG. 8, the four screw threads 115 are arranged so as to correspond to one circumference of the screw groove of the screw shaft 71 of the panel pressing member 70. Therefore, when the panel retainer 70 is rotated, the screw shaft 71 moves up and down in the axial direction due to the engagement with the four screw threads 115. Each of the guide ribs 113
As shown in FIG. 8, each of the upper and lower ribs has a vertically long rib shape, and a tapered surface 116 for receiving the tip of the screw shaft 71 of the panel retainer 70 is formed on each of the upper and lower ribs.

Further, the lower surface of each guide rib 113 has a support leg 4
The most downward position of the support plate 50 is regulated by abutting the tip end of the bolt shaft 42 of 0. That is, the bolt shaft 42 of the support leg 40 is screwed into the nut portion 51 of the support plate 50 and protrudes upward through the center hole 53 of the base plate 52. The tip of the protruding bolt shaft 42 is attached to the base plate 52 with a spacer 60.
In the state of being mounted, the tube portion 110 projects from below into the insertion hole 111. At this time, the tip of the bolt shaft 42
By contacting the lower surface of each guide rib 113 protruding into 111, it is impossible to project further upward. Therefore, the tip end portion of the bolt shaft 42 of the support leg 40 abuts the lower surface of each guide rib 113, whereby the screwing amount of the nut portion 51 of the support plate 50 with respect to the bolt shaft 42 is restricted, and by extension, the base plate 52 of the base plate 52. The height of the support leg 40 from the bottom plate 41 is restricted.

As shown in FIGS. 9 and 10, the panel retainer 70 has a disk-shaped head 72 that abuts on the upper surface of the floor panel 20,
It is hung from the lower surface of the head 72, and the cylindrical portion 110 of the spacer 60.
Is inserted into the insertion hole 111 of the elastic engagement part 11 in the insertion hole 111.
And a screw shaft 71 having a screw groove that meshes with the second screw thread 115. And the panel retainer 70 has an appropriate rigidity,
For example, it is integrally molded with resin such as POM.

As shown in FIGS. 9 and 10, the head 72 is provided with a hexagonal hole 73 for inserting a hexagonal wrench (not shown) as a rotary operation part. Incidentally, the head
To the bottom surface of 72, fix the same cushion material as the cushion material fixed to the upper surface of the base plate 52 of the support plate 50, and fix each floor panel.
20 rattling may be prevented.

On the other hand, each floor panel 20 has a substantially rectangular shape as shown in FIGS. 1 and 2, and the disc-shaped head 72 of the panel retainer 70 is provided on the upper surfaces of the four corners. A quadrilateral fan-shaped step portion 21 is formed so that a part thereof fits in. This step 21
, Part of the head 72 of the panel presser 70 fits in,
The upper surface of the head 72 and the upper surface of the floor panel 20 are substantially flush with each other.

Next, the supporting device 10 having the above structure
The procedure for implementing the floor panel 20 using is explained. First, with respect to the base plate 52 of the support plate 50, as shown in FIGS.
Attach the spacer 60. That is, the recesses 101 on the lower surface of each partition portion 100 of the spacer 60 are aligned with the respective projections 54 on the upper surface of the base plate 52, and the ring portion 90 of the spacer 60 is formed.
Is pushed down from above so as to cover the base plate 52 from above.

When the ring portion 90 is pushed down, its side wall portion 75
Each of the claws 93 comes into contact with the base plate 52. Here, when the ring portion 90 is further pushed down, the downward slope of each claw portion 93 is pushed by the outer peripheral surface of the base plate 52, and the inner diameter of the annular side wall portion 75 expands slightly against the elastic force of the resin. To do. For this reason, as shown in FIG. 7, each claw 93 rides over the outer peripheral surface of the base plate 52 downward, and the inner diameter of the side wall 75 is restored by the elastic force of the resin, whereby the upper surface of each claw 93 is changed. It is caught on the lower surface of the base plate 52.

Therefore, the spacer 60 cannot be separated upward from the base plate 52 by the claw portion 93. Also, spacer 60
The protrusions 54 of the base plate 52 are fitted in the recesses 101 of the partition 100 to prevent the spacer 60 from rotating with respect to the base plate 52. Next, the nut portion 51 of the support plate 50 is screwed into the bolt shaft 42 of the support leg 40 as shown in FIG.

At this time, the tip end portion of the bolt shaft 42 of the support leg 40 is deeply screwed into the nut portion 51 of the support plate 50 up to the position where the tip end portion of the bolt rib 42 of the spacer 60 contacts the lower surface of each guide rib 113 of the spacer 60. At the position where the bottom end of the bolt shaft 42 of the support leg 40 abuts the lower surface of each guide rib 113, the distance between the bottom plate 41 of the support leg 40 and the base plate 52 of the support plate 50 becomes closest, and the support plate 50 The lowest position.

Next, as shown in FIG. 2, the bottom plate 41 of the support leg 40 is placed on the floor surface 20, and the amount of screwing of the nut portion 51 of the support plate 50 is adjusted to support the floor plate 20 from the floor surface 20. The height of the plate 50 to the upper surface of the base plate 52 is set to a predetermined height. The adjustment is performed in the direction of raising the support plate 50 from the lowermost position of the support plate 50. By adjusting in this way, the adjustment time can be shortened. That is, since the lowermost positions of the support plates 50 are aligned, it is only necessary to raise the support plates 50 at locations where the floor surface 20 has become low, so when adjusting the height of the support plates 50 while moving up and down. In comparison, the adjustment can be completed in a short time.

Then, if the heights of the support plates 50 are made uniform,
The bottom surface of the bottom plate 41 of the support leg 40 is bonded to the floor surface 20. In addition, after the bottom surface of the bottom plate 41 of the support leg 40 is adhered to the floor surface 20,
It is also possible to make a height adjustment of 50. Also, support legs 40
Bond the bottom surface of the bottom plate 41 of the
It is also possible to screw the nut portion 51 of the support plate 50 into 42. Further, it is possible to mount the spacer 60 after screwing the nut portion 51 of the support plate 50 into the bolt shaft 42 of the support leg 40.

Next, the adjacent partition 10 of the spacer 60
As shown in FIGS. 1 and 2, 20 corners of the floor panel are respectively placed within the interval of 0. As a result, a total of four floor panels 20 are placed on the spacer 60, respectively. Next, as shown in FIG. 11, the screw shaft 71 of the panel retainer 70 is inserted in alignment with the insertion hole 111 of the tubular portion 110 of the spacer 60.

When the screw shaft 71 of the panel retainer 70 is inserted, the screw shaft 71 is guided by the guide ribs 113 projecting into the insertion hole 111 of the tubular portion 110 and advances in the insertion hole 111 substantially vertically. Then, when the screw shaft 71 of the panel retainer 70 further advances in the insertion hole 111, the screw thread is inserted into the insertion hole 111 of the tubular portion 110.
It abuts on the threads 115 of each elastic engaging portion 112 protruding inward.

When the screw shaft 71 is further pushed down, the thread 115 of each elastic engaging portion 112 is pushed by the thread of the screw shaft 71, and the elastic piece 114 of each elastic engaging portion 112 is It bends outward in the radial direction against the elastic force of the resin. For this reason, the screw shaft
71 descends in the insertion hole 111, and at that time, the thread 115 of each elastic engaging portion 112 passes over one thread 115 of the screw shaft 71,
Proceed to the next thread. When the screw thread 115 of each elastic engagement portion 112 gets over the screw thread of the screw shaft 71, the elastic piece 114 of each elastic engagement portion 112 is restored by the elastic force of the resin, and the screw thread 115 of the screw shaft 71 is restored. Fit into the thread groove.

Thus, each time the screw shaft 71 of the panel retainer 70 is pushed down, the screw thread 115 of each elastic engaging portion 112 is locked by the screw shaft 71.
Panel presser at the position where the bottom surface of the head 72 abuts the bottom of the step 21 of the floor panel 20
You can no longer push 70 down. Further, since the screw thread 115 of the elastic engaging portion 112 is arranged so as to correspond to one circumference of the screw groove of the screw shaft 71 of the panel pressing member 70, the hexagonal hole 73 of the head 72 of the panel pressing member 70 is provided as necessary. Although not shown, insert a hexagon wrench and rotate the
The screw shaft 71 of 70 can be retightened.

When the panel retainer 70 is mounted in this manner, as shown in FIG. 11, the thread 115 of each elastic engaging portion 112 fits into the thread groove of the screw shaft 71, whereby the screw axle of the panel retainer 70 is inserted. 71 is the insertion hole 111 of the cylindrical portion 110 of the spacer 60.
It cannot get out from the inside. That is, when upward pull-out force is applied to the screw shaft 71 of the panel retainer 70, each elastic engaging portion 11
Since the second elastic piece 114 projects obliquely downward, the screw thread 115 is pushed upward by the screw thread of the screw shaft 71 located below. Therefore, each elastic piece 114 is recessed inward in the radial direction, and the screw thread 115 bites into the thread groove of the screw shaft 71, thereby resisting the removal force.

As shown in FIG. 2, the bottom surface of each floor panel 20 is received by the top surface of the ring portion 90 of the spacer 60 or the cushion member 80, and the bottom surface of the stepped portion 21 of each floor panel 20 is covered. The lower surface of the portion 72 abuts. Therefore, the corners of each floor panel 20 are fixed in a state of being lifted above the floor surface 30 via the support device 10 while being sandwiched in the vertical direction.

As shown in FIG. 2, a carpet 120 may be laid on the upper surface of the floor panel 20 to hide the joints of the floor panel 20 and the head 72 of the panel retainer 70 of the supporting device 10. Good. Next, to remove the floor panel 20 and change the wiring and piping, use the hexagonal hole 73 of the head 72 of the panel retainer 70.
Although not shown in the drawing, by inserting a hexagon wrench and rotating it, the screw shaft 71 of the panel retainer 70 is inserted into the insertion hole of the spacer 60.
The screw thread 115 in 111 causes the screw thread 115 to come off gradually. In this way, if the screw shaft 71 of the panel retainer 70 comes off, the floor panel 20 placed on the spacer 60 is opened by removing the panel retainer 70.

On the other hand, FIGS. 13 and 14 show a second embodiment of the panel retainer 70. FIG. 13 is a side view of one half of the panel retainer 70 in section, and FIG. 14 is a plan view thereof. A feature of the present embodiment is that, as shown in FIG. 13, a plurality of depressions 74 for rotation operation into which a finger fits are formed as rotation operation portions on the upper surface of the head 72 of the panel retainer 70, as shown in FIG.

According to this embodiment, when the floor panel 20 is removed, the fingers are placed in the adjacent recesses 74, and the raised portions 75 between them are hooked, so that the head 72 of the panel retainer 70 is removed.
Can be rotated. Therefore, the head 72 of the panel retainer 70 can be rotated even if there is no hexagon wrench. In the description of this embodiment, the same components as those of the panel retainer 70 of the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.

FIGS. 15 and 16 show another embodiment of the panel retainer 70. FIG. 15 is a side view showing a half of the panel retainer 70 in section, and FIG. 16 is a plan view thereof. The feature of this embodiment is that a coin groove 76 of a size such that a coin (not shown) such as a coin fits into the upper surface of the head 72 of the panel retainer 70 as a rotary operation portion as shown in FIGS. Is the point that formed.

According to this embodiment, when removing the floor panel 20, a coin (not shown) can be inserted into the coin groove 76 and the head 72 of the panel retainer 70 can be rotated. For this reason,
Even if there is no special tool such as a hexagon wrench, there is an advantage that the head 72 can be rotated by using a coin. Especially with the fingers on the head
Even if it is difficult to rotate the 72, there is an advantage that the head 72 can be rotated using a coin.

In the description of this embodiment, the same components as those of the panel retainer 70 of the first embodiment described above will be designated by the same reference numerals and detailed description thereof will be omitted. The hexagonal hole 73, the recessed portion 74, and the coin groove 76 have been described as an example of the rotary operation portion. However, one or more of the hexagonal hole 73, the recessed portion 74, and the coin groove 76 are combined. Alternatively, the hexagonal hole 73, the recessed portion 74, and the coin groove 76 may be used, and a + groove or a − groove into which a driver can be inserted may be formed. Further, the head 72 of the panel retainer 70 may be formed. The outer circumference itself may be non-circular.

[0058]

Since the present invention is constituted as described above, it has the following effects. Claim 1
According to the invention described in (1), not only the mountability of the panel retainer to the spacer can be improved, but also damage to the elastic engaging portion of the spacer after attachment can be prevented.

According to the second aspect of the invention, the panel retainer can be retightened and removed. Claim 3
According to the invention described in (1), by eliminating the conventionally required slit, the occurrence of so-called weld failure during molding is prevented in advance, and the uneven distribution of force when the upward pulling force acts on the spacer is eliminated. It is possible to prevent the spacer from being damaged.

According to the invention described in claim 4, it is possible to provide a supporting device which simultaneously exhibits the effects of the inventions described in claims 1 and 3. According to the fifth aspect of the present invention, the panel presser can be easily tightened and removed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a floor panel support device.

FIG. 2 is a schematic cross-sectional view showing a working state of a floor panel.

FIG. 3 is a side view showing a part of a spacer and a panel retainer in section.

FIG. 4 is a plan view of a spacer.

FIG. 5 is a bottom view of the spacer.

FIG. 6 is a partial perspective view of a spacer.

FIG. 7 is a partial cross-sectional view showing a state in which a spacer is attached to a support plate.

FIG. 8 is an enlarged cross-sectional view of a cylindrical portion of a spacer.

FIG. 9 is a side view showing a cross section of one half of the panel retainer.

FIG. 10 is a plan view of a panel retainer.

FIG. 11 is a partial cross-sectional side view showing a state in which a spacer and a panel retainer are connected to each other.

FIG. 12 is a plan view showing a state in which a spacer and a panel retainer are connected to each other.

FIG. 13 shows a second embodiment of the panel retainer,
It is the side view which made one half into the cross section.

14 is a plan view of the panel retainer shown in FIG. 14. FIG.

FIG. 15 shows another embodiment of the panel retainer,
It is the side view which made one half into the cross section.

16 is a plan view of the panel retainer shown in FIG.

FIG. 17 is an exploded perspective view of a conventional floor panel support device.

FIG. 18 is an enlarged perspective view showing a cross section of a part of the spacer of FIG.

[Explanation of symbols]

10 Support device 20 Floor panel 30 Floor surface 40 Support leg 50 Support plate 60 Spacer 70 Panel retainer 71 Screw shaft 72 Head 73 Hexagonal hole as an example of rotary operation part 80 Cushion material 93 Claw part 94 Abutment part 100 Partition part 110 Cylindrical part 112 Elastic engagement part 113 Guide rib 115 Thread

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masanobu Kawamoto 1 184 Maioka-cho, Totsuka-ku, Yokohama-shi, Kanagawa 1 Nifco Co., Ltd.

Claims (5)

[Claims] 1. A support leg which is erected at a predetermined interval on a floor surface, a support plate which is fixed to the support leg in a height adjustable manner, and a support plate which is fixed to an upper surface of the support plate and is integrally made of resin. In a support device for a double-floor floor panel, which includes a spacer molded in and a panel retainer for pressing the floor panel placed on the upper face of the spacer toward the upper face of the spacer, Includes a head that abuts on an upper surface of the floor panel, and a screw shaft that is hung from a lower surface of the head, and the spacer includes a cylindrical portion into which the screw shaft of the panel retainer is inserted. Inside the portion, the plurality of elastic engaging portions that are radially arranged, project inward in the radial direction, and engage with the screw shaft, and are located within the interval between the adjacent elastic engaging portions, and insert direction of the screw shaft. Having a plurality of guide ribs extending to the Supporting device for floor panel of double floor. 2. The plurality of elastic engaging portions each have a thread formed so as to correspond to one circumference of a thread groove of a screw shaft of the panel pressing member. Floor panel support device as described. 3. A support leg that is erected on the floor surface at a predetermined interval, a support plate that is fixed to the support leg in a height-adjustable manner, a support plate that is fixed to the upper surface of the support plate, and is integrally made of resin. In a supporting device for a floor panel of a double floor, which comprises a spacer molded in, and a panel retainer for pressing the floor panel placed on the upper surface of the spacer toward the upper surface of the spacer, the spacer includes , A plurality of radially extending partition parts that fit into the space between the adjacent floor panels and a plurality of partition parts that are located substantially at the center of the adjacent space between the partition parts and project inward in the radial direction to be caught by the support plate. A support device for a floor panel of a double floor, comprising: a plurality of claw portions and a plurality of contact portions that protrude inward in a radial direction and contact the outer periphery of the support plate, respectively. 4. A support leg which is erected at a predetermined interval on a floor surface, a support plate which is fixed to the support leg so as to be adjustable in height, and fixed to an upper surface of the support plate, and is integrally made of resin. In a support device for a double-floor floor panel, which includes a spacer molded in and a panel retainer for pressing the floor panel placed on the upper face of the spacer toward the upper face of the spacer, Includes a head that abuts the upper surface of the floor panel, and a screw shaft that is hung from the lower surface of the head, and the spacer includes a tubular portion into which the screw shaft of the panel retainer is inserted, and the tubular portion. Radially extending from the portion, a plurality of partition portions that fit into the space between the adjacent floor panels, and are respectively located at approximately the center of the adjacent space between the plurality of partition parts,
A plurality of claw portions that project inward in the radial direction to be hooked on the support plate, and a plurality of contact portions that project inward in the radial direction and contact the outer periphery of the support plate, respectively, , Radially arranged, radially inwardly projecting, a plurality of elastic engaging portions that engage with the screw shaft, and a plurality of elastic engaging portions that are located in a space between the adjacent elastic engaging portions and that extend in the inserting direction of the screw shaft. A support device for a floor panel of a double floor, comprising a guide rib. 5. A support for a double-floor floor panel according to claim 1, wherein a rotation operation part for rotating the panel retainer is formed on a surface of the panel retainer. apparatus.