JP3359966B2 - Double floor floor panel support equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device for a floor panel having a double floor, and more particularly to an improvement of a support device for a floor panel having a double floor, wherein the floor panel can be fixed 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, a device in which a panel presser can be attached with a single touch has been proposed (for example, Japanese Patent Application Laid-Open No. 1-304261).
And Japanese Utility Model Laid-Open No. 4-51532). In addition, FIG.
As shown in FIG. 8, support legs 200 erected at predetermined intervals on the floor surface, a support plate 210 fixed to the support legs 200 so as to be adjustable in height, and fixed to the upper surface of the support plate 210 , A spacer 220 integrally formed of resin, and the spacer 2
The floor panel 230 placed on the upper surface of the
There is also known a supporting device including a panel presser 240 that presses down toward the upper surface of the panel 20.

[0003] The spacer 22 in the above-mentioned conventional supporting device is used.
As shown in FIG. 17, a ring portion 221 covers the support plate 210 from above, four partition portions 222 extending radially inward from the ring portion 221 and a plurality of partition portions 222. And a cylindrical portion 223 which is held at the center of the ring portion 221 and into which a screw 250 for fixing the panel presser 240 is inserted.

[0004] In addition, the annular protruding edge portion of the ring portion 221 includes:
As shown in FIG. 18, a claw portion 225 that protrudes inward in the radial direction and is hooked on the lower surface of the support plate 210 is formed on the inside surrounded by the pair of slits 224, 224, and the pair of slits 224 are adjacent to each other. It is formed at a position close to one of the two partition portions 222.

[0005]

However, of the above-mentioned conventional supporting devices, the former allows the panel press to be attached to the spacer with one touch, but the panel press goes straight when the panel press is installed. There is a problem that there is difficulty in sex. In the latter case, the spacer 220
In the vicinity of the claw portion 225 surrounded by the pair of slits 224 formed in the above, there is a problem that a so-called weld defect at the time of molding due to the slit 224 easily occurs.

That is, slits 224 are formed on both sides of the claw 225 of the spacer 220 to promote its elastic deformation. However, if there is a slit 224, the spacer 220
In the injection molding die described above, branching and joining of the resin flow are likely to occur near the molding portion of the claw portion 225 surrounded by the pair of slits 224. For this reason, unevenness in strength occurs in the claw portion 225 surrounded by the pair of slits 224, or a so-called weld line is generated, which is likely to cause damage.

Further, the claw portion 2 surrounded by a pair of slits 224
25 is positioned close to one of the adjacent partition portions 222, so that when the spacer 220 receives an upward pulling force, the claw portion 225 approaches one of the two partition portions 222. Force was easy to be ubiquitous in part 222. For this reason, the claws 225
Is closer to the ring portion 2 than the root portion of
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 double-floor floor panel support device, and has been made in accordance with the present invention.
The object of the invention described in (1) is to improve the attachment of the panel holder.

Another object of the present invention is to rotate a panel holder so that it can be tightened or removed. The object of the invention according to claim 3 is to eliminate the slits conventionally required, thereby preventing the occurrence of a so-called weld defect at the time of molding, and applying an upward pulling force to the spacer. The purpose of the present invention is to prevent the ubiquity of force in such a case and to prevent the spacer from being damaged.

A fourth aspect of the present invention aims to simultaneously achieve the objects of the first and third aspects of the present invention. A fifth object of the present invention is to facilitate retightening and removal of the panel retainer.

[0010]

SUMMARY OF THE INVENTION The present invention is to achieve the above-mentioned object, and its contents will be described below with reference to embodiments shown in the drawings. According to the first aspect of the present invention, a head (72) abutting on the upper surface of the floor panel (20) and a screw shaft (7) suspended from the lower surface of the head (72) are provided on the panel holder (70).
1), and the spacer (60) includes a panel presser (70).
A cylindrical portion (110) into which the screw shaft (71) is inserted;
Inside the (110), a plurality of elastic engaging portions radially arranged, projecting inward in the radial direction, and engaging with the screw shaft (71).
(112), located within the interval between adjacent elastic engagement portions (112),
A plurality of guide ribs (1) extending in the insertion direction of the screw shaft (71)
13).

According to a second aspect of the present invention, there is provided a screw which is disposed on each of the plurality of elastic engagement portions so as to correspond to one circumference of a screw groove of the screw shaft of the panel retainer. A mountain (115) is formed on each. The invention according to claim 3 provides a plurality of radially extending partitions (100) that fit into the spacer (60) within the space between adjacent floor panels (20).
And a plurality of claw portions (93) protruding inward in the radial direction that are respectively located at substantially centers in adjacent intervals of the plurality of partition portions (100) and hooked on the support plate (50); And a plurality of abutting portions (94) that respectively abut against the outer periphery of the support plate (50).

In addition to the above, the invention according to claim 3 provides
The pacer (60) has an inner circumference larger than the outer circumference of the support plate (50).
A side wall portion (92), and the contact portion (94) includes the side wall portion (92).
Projecting inward in the radial direction from the inner peripheral surface. Claim 4
The panel holder (70) includes a head (72) that abuts on the upper surface of the floor panel (20), and a screw shaft (71) that is suspended from the lower surface of the head (72). A cylindrical portion (110) into which the screw shaft (71) of the panel presser (70) is inserted, the spacer (60);
A plurality of partitions (100) extending radially from the cylindrical portion (110) and fitting into the space between the adjacent floor panels (20), and approximately at the center of the space between the plurality of partitions (100) in the adjacent space. A plurality of radially inwardly projecting claws (93) which are respectively positioned and hooked on the support plate (50); and a plurality of radially inwardly projecting claws (93) which are in contact with the outer periphery of the support plate (50). A contact part (94), inside the cylindrical part (110), radially arranged, protruding radially inward, and the screw shaft (71)
And a plurality of guide ribs (113) located within the space between the adjacent elastic engaging portions (112) and extending in the insertion direction of the screw shaft (71). It is characterized by having.

According to a fifth aspect of the present invention, there is provided a panel press (70).
A rotation operation portion (for example, a hexagonal hole 73, a concave portion 74, a coin groove 76) for rotating the panel presser (70) is formed on the surface of the.

[0014]

Therefore, according to the first aspect of the present invention,
Connect the screw shaft (71) of the panel presser (70) to the guide ribs (11
It can be inserted straight along 3). After insertion, screw shaft
Even if the (71) is inclined in the cylinder (110) of the spacer (60), the screw shaft (71) comes into contact with the guide rib (113) in the cylinder (110), so that the screw shaft (71) Can prevent tilt. For this reason, even when the floor panel (20) is going to float upward and a detaching force is applied to the panel holder (70) obliquely upward, the inclination of the screw shaft (71) is prevented, so that a plurality of Of the elastic engaging portions (112), the pull-out force is not unevenly distributed to only one elastic engaging portion (112). Therefore, the disengagement force can always be evenly distributed to the plurality of elastic engagement portions (112), so that damage to the elastic engagement portions (112) can be prevented.

According to the second aspect of the present invention, the thread (115) of the elastic engaging portion (112) is arranged so as to correspond to one circumference of the thread groove of the screw shaft (71) of the panel presser (70). Since the panel holder (70) is rotated as necessary, the screw shaft (71) of the panel holder (70) can be further tightened. According to the third aspect of the present invention, since the claw portion (93) does not have the conventionally required slit, it is possible to prevent the occurrence of a so-called weld defect during molding.

Further, by eliminating the slit, it is expected that rattling occurs between the spacer (60) and the support plate (50). The occurrence of this backlash can be reduced by using a plurality of contact parts (94)
This is prevented by making contact with the outer periphery of (50).
That is, in order for the claw portion (93) to be hooked on the support plate (50), the claw portion (93) must climb over the support plate (50). For this reason, the deflection 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
Play may occur between the support plate (60) and the support plate (50). For this reason, by making the contact portion (94) protrude into the gap, rattling occurring between the spacer (60) and the support plate (50) is prevented. In addition, by positioning each claw portion (93) substantially at the center within the adjacent space between the plurality of partition portions (100), when the upward pulling force acts on the spacer (60), the adjacent portions (93) are adjacent to each other. The force can be evenly distributed to the left and right with respect to the partition (100).

According to the fourth aspect, the effects of the first and third aspects can be expected at the same time. According to the fifth aspect of the present invention, the panel presser is provided with a rotary operation portion (for example, a hexagonal hole 73, a concave portion 74, a coin groove 76) formed on the surface of the panel presser (70).
(70) can be rotated.

[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 an operating state, and FIG. 3 shows a spacer and a panel retainer. FIG. 4 is a side view showing a part of the spacer, FIG. 4 is a plan view of a spacer, and FIG.
6 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 state in which the spacer is mounted on the support plate, FIG. 8 is an enlarged cross-sectional view of the cylindrical portion of the spacer, and FIG. FIG. 10 is a plan view of the panel retainer, FIG. 11 is a partial side view showing a state where the spacer and the panel retainer are connected, and FIG. 12 is a view of the 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 floor panel 20 is lifted up from the floor surface 30 by fixing the floor panel 20 over each of the adjacent support devices 20 and fixed, and the floor panel 20 is lifted upward from the floor surface
Although not shown, cables and ducts can be wired or piped in a space between the floor panel 20 and the floor panel 20.

As shown in FIGS. 1 and 2, the support device 10 is roughly divided into support legs 40 erected at predetermined intervals on a floor 30, and the height of the support legs 40 is adjustable. A support plate 50 to be fixed, a spacer 60 fixed to the upper surface of the support plate 50, and a floor panel mounted on the upper surface of the spacer 60
And a panel holder 70 for holding the panel 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 mounted on the floor 30 and a bolt shaft 42 extending upward from substantially the center of the upper surface of the bottom plate 41. It is composed of The bottom plate 41 is formed of a substantially rectangular metal plate as shown in FIGS. Also, the bottom plate 41
As shown in FIG. 1, a through hole 43 penetrating up and down
A plurality are formed at predetermined intervals. These through holes
Although not shown, an adhesive used for bonding the bottom plate 41 to the floor surface 30 flows into the inside of the floor 43.

The bolt shaft 42 is made of metal and has its lower end welded to the approximate center of the bottom plate 41 as shown in FIGS. In addition, the support leg 40 is composed of the bottom plate 41 and the bolt shaft 42, but is not limited to this, except for the bottom plate 41.
May be composed only of the bolt shaft 42. The support plate 50
As shown in FIG. 1 and FIG. 2, a nut 51 is screwed into the bolt shaft 42, and a base plate 52 fixed to the nut 51.

As shown in FIG. 1, the base plate 52 is formed of a substantially disk-shaped metal plate. And the base plate
At the center of the center hole 52, a center hole 53 penetrating vertically through which the bolt shaft 42 passes is formed. With the center hole 53 and the screw hole of the nut portion 51 aligned, a metal plate is formed on the lower surface of the base plate 52. Is welded. As shown in FIG. 1, the base plate 52 is formed with a plurality of convex portions 54 arranged in a circumferential direction and extending substantially vertically upward. In the present embodiment, four convex portions 54 are radially arranged, and more specifically, the base plate 52 is cut out in a U-shape to form each cut portion.

Further, on the upper surface of the base plate 52, FIG.
As shown in FIG. 7, a rectangular cushion material 80 having a predetermined thickness and slightly smaller than the base plate 52 is fixed. The cushion member 80 is compressed between the lower surface of each floor panel 20 and prevents rattling of each floor panel 20. The spacers 60 are roughly classified as shown in FIGS.
A ring portion 90 covering the base plate 52 from above, and four partition portions of the same number as the convex portions 54 extending radially inward radially from the ring portion 90 and covering the convex portions 54 of the base plate 52, respectively. .., And held at the center of the ring portion 90 by these partition portions 100, and the screw shaft 71 of the panel presser 70.
And a cylindrical portion 100 into which the. And spacer 6
Numeral 0 is integrally molded of a 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 extends annularly downward from the outer periphery of the upper wall 91. A side wall portion 92 having a large inner circumference. As shown in FIGS. 3 to 7, the inner peripheral surface of the side wall portion 92 has the adjacent partition portion 10.
It is located substantially at the center within the interval of 0, protrudes radially inward to be hooked on the base plate 52, and has the same number of
And four abutting portions of the same number as the claw portions 93, which are located above the claw portions 93, protrude inward in the radial direction, and abut against the outer periphery of the base plate 52, respectively. 94 ...

As shown in FIGS. 6 and 7, the claw portion 93 has a saw-tooth shape with the slope facing downward, and the upper surface thereof has a base plate 52.
Hooked on the underside of. These claw portions 93 are located substantially at the center of each space between the adjacent partition portions 100 because when the spacer 60 is subjected to an upward pull-out force, the force is applied to the two adjacent partition portions. This is because the right and left sides are evenly distributed with respect to 100. By distributing the pull-out force equally to the two adjacent partition portions 100 in the left and right directions, the ring portion 90 is prevented from being damaged. In addition, with respect to the upward pulling force, 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 around the claw portion 93 is bowed upward. However, damage to the ring portion 90 is prevented.

As shown in FIGS. 6 and 7, each of the abutting portions 94 has a vertically extending rib shape, and a tip portion thereof abuts on the outer periphery of the base plate 52. These contact portions 94 are for preventing the occurrence of rattling caused by making the inner periphery of the side wall portion 92 larger than the outer periphery of the base plate 52. That is, in order for the claw portion 93 to climb over the outer periphery of the base plate 52 and be hooked on the lower surface thereof, the inner periphery of the side wall portion 92 must be bent so as to slightly expand in diameter against the elasticity of the resin. However, in order to prevent the occurrence of resin weld, the side wall portion 92 has a claw portion.
No slit is formed to make the 93 easy to bend.

Therefore, by making the inner circumference of the side wall portion 92 larger than the outer circumference of the base plate 52, the side wall portion 92 can ride over the outer circumference of the base plate 52 with a slight bending. However, if the inner circumference of the side wall portion 92 is made larger than the outer circumference of the base plate 52, the claw portion 93 is hooked on the lower surface of the base plate 52, and then a gap is formed between the inner circumference of the side wall portion 92 and the outer circumference of the base plate 52. This causes rattling.

Therefore, by projecting the contact portion 94 inward in the radial direction from the inner peripheral surface of the side wall portion 92, rattling generated between the inner periphery of the side wall portion 92 and the outer periphery of the base plate 52 is prevented. What you want to do. In the embodiment shown in the drawings, the contact portion 94 is formed above each claw portion 93, but is not limited thereto, and may be formed within the interval between the adjacent claw portions 93. Further, the number of the abutting portions 94 is not limited to four, which is the same as the number of the claw portions 93. The number of the abutting portions 94 may be larger or smaller than the number of the claw portions 93.

The upper wall 91 of the ring portion 90 has
As shown in FIG. 5, auxiliary holes 95 are formed just above the claws 93 and penetrate vertically. Each auxiliary hole 95
This is for removing the claw 93 during molding. further,
The thickness of the upper wall 91 of the ring portion 90 is smaller than the thickness of the cushion material 80. For this reason, the cushion member 80 is provided between the lower surface of the floor panel 20 placed on the upper surface of the ring portion 90 and the support plate 50.
Of the base plate 52 is compressed.

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 part 100
As shown in FIGS. 1 and 3 to 5, the lower surface of the outer end portion is connected to the upper surface of the upper wall 91 of the ring portion 90, and
The inner end is connected to the outer periphery of the cylindrical portion 100. And 4
The upper surface of the upper wall 91 of the ring portion 90 is
Each of the 20 corners of the four floor panels can be placed within the space between the adjacent partitions 100.

As shown in FIG. 5, concave portions 101 into which the respective convex portions 54 of the base plate 52 fit are formed on the lower surface of each partition portion 100, respectively. The protrusions 54 of the base plate 52 fit into the recesses 101, respectively, thereby preventing the rotation of the ring portion 90 with respect to the base plate 52. As shown in FIG. 8, the cylindrical portion 100 has an insertion hole 111 into which the screw shaft 71 of the panel presser 70 is inserted,
A plurality of elastic engaging portions radially arranged in the inside 11 and protruding radially inward and engaging with the screw shaft 71 of the panel presser 70.
And a plurality of guide ribs located within the space between the adjacent elastic engagement portions 112 and extending in the insertion direction of the screw shaft 71.
113 ...

As shown in FIG. 8, the insertion hole 111 has an inner diameter that is 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 engaging portions 112 are arranged on an extension of each of the partition portions 100. Each elastic engagement portion 111 has an elastic piece 114 projecting obliquely downward into the insertion hole 111 of the cylindrical portion 100, and a radially inwardly projecting cross-sectional mountain shape from the lower end of the elastic piece 114. A single thread 115 that fits into the thread groove of the shaft 71 is provided.

As shown in FIG. 8, the four screw threads 115 are arranged so as to correspond to one round of the screw groove of the screw shaft 71 of the panel presser 70. Therefore, when the panel presser 70 is rotated, its screw shaft 71 moves up and down in the axial direction by engagement with the four screw threads 115. Each guide rib 113
As shown in FIG. 8, each of the upper and lower ribs has a tapered surface 116 for receiving the tip of the screw shaft 71 of the panel retainer 70 at the upper end thereof.

The lower surface of each guide rib 113 is
The lowermost position of the support plate 50 is regulated by the contact of the leading end of the zero bolt shaft 42. 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 by a spacer 60.
When the is mounted, it projects from below into the insertion hole 111 of the cylindrical portion 110. At this time, the tip of the bolt shaft 42 is
By contacting the lower surface of each of the guide ribs 113 protruding into the inside 111, it is not possible to protrude further upward. For this reason, the tip of the bolt shaft 42 of the support leg 40 abuts on 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 regulated, and the base plate 52 The height of the support leg 40 from the bottom plate 41 is regulated.

As shown in FIGS. 9 and 10, the panel retainer 70 has a disk-shaped head 72 abutting on the upper surface of the floor panel 20;
The tube portion 110 of the spacer 60 is suspended from the lower surface of the head 72.
Of the elastic engaging portion 11 in the insertion hole 111.
And a screw shaft 71 having a screw groove that engages with the second screw thread 115. And the panel presser 70 has a moderate rigidity,
For example, it is integrally molded with a resin such as POM.

As shown in FIGS. 9 and 10, a hexagonal hole 73 for inserting a hexagonal wrench (not shown) is formed in the head 72 as a rotary operation part. The head
A cushion material similar to the cushion material fixed to the upper surface of the base plate 52 of the support plate 50 is fixed to the lower surface of the
20 rattling may be prevented.

On the other hand, each of the floor panels 20 has a substantially rectangular shape as shown in FIGS. 1 and 2, and the upper surface of the four corners thereof is provided with a disk-shaped head 72 of the panel presser 70. A 1/4 fan-shaped step portion 21 is formed, into which a part fits. This step 21
Then, 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-described configuration will be described.
A procedure for performing the floor panel 20 using the method will be described. First, with respect to the base plate 52 of the support plate 50, as shown in FIGS.
Attach the spacer 60. That is, the concave portion 101 on the lower surface of each partition portion 100 of the spacer 60 is aligned with each convex portion 54 on the upper surface of the base plate 52, and the ring portion 90 of the spacer 60 is formed.
Is pressed down from above so as to cover the base plate 52 from above.

When the ring portion 90 is pushed down, its protruding edge portion 75
Each claw portion 93 contacts 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 protruding portion 75 is slightly expanded against the elastic force of the resin. Diameter. For this reason, as shown in FIG. 7, each claw portion 93 goes over the outer peripheral surface of the base plate 52 and the inner diameter of the protruding edge portion 75 is restored by the elastic force of the resin. Is hooked on the lower surface of the base plate 52.

Therefore, the spacer 60 is not detached upward from the base plate 52 by the claw portion 93. Also, spacer 60
Each of the protrusions 54 of the base plate 52 fits into the recess 101 of the partitioning portion 100, thereby preventing the rotation of the spacer 60 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 bolt is screwed deeply into the nut portion 51 of the support plate 50 until the tip of the bolt shaft 42 of the support leg 40 comes into contact with the lower surface of each guide rib 113 of the spacer 60. At the position where the tip of the bolt shaft 42 of the support leg 40 abuts on the lower surface of each guide rib 113, the interval between the bottom plate 41 of the support leg 40 and the base plate 52 of the support plate 50 is closest, and the support plate 50 It becomes 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. The height of the plate 50 up to the upper surface of the base plate 52 is set to a predetermined height. Note that the adjustment is performed in the direction in which the support plate 50 is raised from the lowest position of the support plate 50. By adjusting in this manner, the adjustment time can be reduced. That is, since the lowest position of the support plate 50 is aligned, it is only necessary to raise the support plate 50 at the place where the floor surface 20 is lowered, so when adjusting the height of the support plate 50 while moving it up and down. In comparison, the adjustment can be completed in a short time.

Then, if the heights of the support plates 50 are aligned,
The lower surface of the bottom plate 41 of the support leg 40 is bonded to the floor surface 20. Note that the lower surface of the bottom plate 41 of the support leg 40 is adhered to the floor surface 20 and then the support plate
A height adjustment of 50 is also possible. Also, support legs 40
The bottom surface of the bottom plate 41 is bonded to the floor surface 20 and then the bolt shaft
It is also possible to screw the nut portion 51 of the support plate 50 into 42. Further, it is also possible to attach the spacer 60 after the nut portion 51 of the support plate 50 is screwed 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 placed within the interval of 0. As a result, a total of four floor panels 20 are placed on the spacers 60, respectively. Next, as shown in FIG. 11, the screw shaft 71 of the panel presser 70 is inserted into the insertion hole 111 of the cylindrical portion 110 of the spacer 60, as shown in FIG.

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 cylindrical portion 110, and advances in the insertion hole 111 substantially vertically. Then, when the screw shaft 71 of the panel presser 70 further advances in the insertion hole 111, the screw thread is inserted into the insertion hole 111 of the cylindrical portion 110.
Abut on the thread 115 of each elastic engaging portion 112 projecting inward.

Here, when the screw shaft 71 is further pressed 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 pressed. Deflected radially outward 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 engagement portion 112 passes over one thread 115 of the screw shaft 71,
Proceed to the next thread groove. When the thread 115 of each elastic engaging portion 112 climbs over the thread of the screw shaft 71, the elastic piece 114 of each elastic engaging portion 112 is restored by the elastic force of the resin, and the thread 115 is It fits into the thread groove.

Thus, each time the screw shaft 71 of the panel holder 70 is pressed down, the thread 115 of each elastic engaging portion 112 is
At the position where the lower surface of the head 72 abuts the bottom surface of the step portion 21 of the floor panel 20 one by one,
70 can no longer be depressed. 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 presser 70, the hexagonal hole 73 of the head 72 of the panel presser 70 may be used if necessary. (Not shown), insert a hexagon wrench and rotate it to hold the panel
It is also possible to retighten the 70 screw shafts 71.

When the panel presser 70 is mounted in this way, as shown in FIG. 11, the thread 115 of each elastic engaging portion 112 fits into the thread groove of the screw shaft 71, and the screw shaft of the panel 71 is the insertion hole 111 of the cylindrical portion 110 of the spacer 60
It cannot be pulled upward from inside. That is, when an upward pulling force is applied to the screw shaft 71 of the panel presser 70, each elastic engagement 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. For this reason, each elastic piece 114 narrows inward in the radial direction, and the thread 115 bites into the screw groove of the screw shaft 71, thereby resisting the pull-out force.

As shown in FIG. 2, the lower surface of each floor panel 20 is received by the upper surface of the ring portion 90 of the spacer 60 or the cushion member 80, and the head is attached to the bottom surface of the step portion 21 of each floor panel 20. The lower surface of the part 72 contacts. For this reason, each floor panel 20 is fixed in a state of being lifted upward from the floor surface 30 via the support device 10 with the corners of the floor panel 20 sandwiched from above and below.

As shown in FIG. 2, a carpet 120 may be laid on the upper surface of the floor panel 20 to hide the joint of the floor panel 20 and the head 72 of the panel holder 70 of the support device 10, as shown in FIG. Good. Next, in order to remove the floor panel 20 and change the wiring and piping, a hexagonal hole 73 in the head 72 of the panel presser 70 is required.
Although not shown, the hexagon wrench is inserted and rotated, so that the screw shaft 71 of the panel retainer 70 is inserted into the insertion hole of the spacer 60.
It gradually comes off upward by screwing with the thread 115 in 111. Thus, when the screw shaft 71 of the panel holder 70 comes off, the floor panel 20 placed on the spacer 60 is opened by removing the panel holder 70.

13 and 14 show a second embodiment of the panel retainer 70. FIG. 13 is a side view showing a half of the panel retainer 70 in section, and FIG. 14 is a plan view thereof. The feature of this embodiment is that a plurality of depressions 74 for a rotation operation into which a finger fits are formed as a rotation operation unit on the upper surface of the head 72 of the panel presser 70 as shown in FIG.

According to the present embodiment, when the floor panel 20 is removed, fingers are inserted into the adjacent depressions 74, and the fingers are hung on the ridges 75 therebetween.
Can be rotated. Therefore, there is an advantage that the head 72 of the panel holder 70 can be rotated even when there is no hexagon wrench. In the description of the present embodiment, the same components as those of the panel presser 70 of the first embodiment described above are denoted 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 present embodiment is characterized in that a coin groove (not shown) 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 presser 70 as a rotary operation unit as shown in FIGS. It is in the point which 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 holder 70 can be rotated. For this reason,
There is the advantage that the coin 72 can be used to rotate the head 72 without using a special tool such as a hexagon wrench. Especially the head with fingers
Even when it is difficult to rotate the head 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 presser 70 of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof will be omitted. Also, the hexagonal hole 73, the concave portion 74, and the coin groove 76 have been described as examples of the rotating operation portion, but one or more of the hexagonal hole 73, the concave portion 74, and the coin groove 76 are combined. Or a hexagonal hole 73, a recess 74, a coin groove 76, or a + groove or a-groove into which a driver can be inserted. May be non-circular.

[0058]

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

According to the second aspect of the present invention, it is possible to retighten and remove the panel presser. Claim 3
According to the invention described in (1), by eliminating the conventionally required slits, it is possible to prevent the occurrence of so-called weld defects at the time of molding, and to reduce the ubiquity of the force when the upward pulling force acts on the spacer. Thus, the spacer can be prevented from being damaged.

In addition to the above, according to the third aspect of the present invention,
Then, the contact part protrudes inward in the radial direction from the inner peripheral surface of the side wall part.
Between the inner circumference of the side wall and the outer circumference of the support plate.
The occurrence of rattling can be prevented. Claim 4
According to the invention described in (1), claim 1 and claim 3 described above.
It is possible to provide a supporting device that can simultaneously provide the effects of the described invention.

According to the fifth aspect of the present invention, it is possible to easily retighten and remove the panel presser.

[Brief description of the drawings]

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

FIG. 2 is a schematic cross-sectional view showing an enforced state of the floor panel.

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

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 where a spacer is mounted on a support plate.

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

FIG. 9 is a side view of a half of the panel retainer in section.

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

FIG. 11 is a partially sectional side view showing a state where the spacer and the panel retainer are connected.

FIG. 12 is a plan view showing a state where a spacer and a panel holder are connected.

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

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

FIG. 15 illustrates another embodiment of the panel presser.
It is the side view which made the half into a cross section.

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

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

FIG. 18 is an enlarged perspective view in which a part of the spacer of FIG. 17 is sectioned;

[Description of Signs] 10 Supporting device 20 Floor panel 21 Step 30 Floor 30 Support leg 41 Bottom plate 42 Bolt shaft 43 Through hole 50 Support plate 51 Nut 52 Base plate 53 Center hole 54 Convex portion 60 Spacer 70 Panel press 71 Screw Shaft 72 Head 73 Six as an example of rotary operation part
Square hole 74 Depressed portion 75 Raised portion 76 Coin groove 80 Cushion material 90 Ring portion 91 Upper wall 92 Protruding edge 93 Claw portion 94 Abutment portion 95 Auxiliary hole 100 Partition portion 101 Depression 110 Tube portion 111 Insertion hole 112 Elastic engagement 113 Guide rib 114 Elastic piece 115 Thread 116 Tapered surface 120 Carpet (Conventional example) 200 Support leg 210 Support plate 220 Spacer 221 Ring part 222 Partition part 223 Tube part 224 Slit 225 Claw part 230 Floor panel 240 Panel presser

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masanobu Kawamoto 184 Maioka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Nifco Co., Ltd. (56) References JP-A-5-10020 (JP, A) Japanese Utility Model 2 −125 135 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04F 15/00 101 E04F 15/024 603 F16B 37/00

Claims (5)

(57) [Claims] 1. A support leg erected at predetermined intervals on a floor, a support plate fixed to the support leg so as to be adjustable in height, and fixed to an upper surface of the support plate and integrally formed of resin. In a supporting apparatus for a floor panel of a double floor provided with a spacer molded into the above, and a panel holder for pressing a floor panel placed on the upper surface of the spacer toward the upper surface of the spacer, Comprises a head abutting on an upper surface of the floor panel, and a screw shaft vertically provided from a lower surface of the head, and the spacer includes a cylindrical portion into which a screw shaft of a panel holding member is inserted. Inside the portion, a plurality of elastic engaging portions that are radially arranged, protrude inward in the radial direction, and engage with the screw shaft, and are located within a space between the adjacent elastic engaging portions, and the insertion direction of the screw shaft. A plurality of guide ribs extending to A double-floor floor panel support device, characterized in that: 2. A screw thread which is formed on each of the plurality of elastic engaging portions so as to correspond to one circumference of a screw groove of a screw shaft of the panel presser. A floor panel support device as described in the above. 3. A support leg erected at predetermined intervals on a floor, a support plate fixed to the support leg so as to be adjustable in height, and fixed to an upper surface of the support plate and integrally formed of resin. In a supporting apparatus for a double-floor floor panel, comprising a spacer molded into a spacer and a panel retainer for pressing a floor panel placed on the upper surface of the spacer toward the upper surface of the spacer, A plurality of radially extending partitions that fit into the space between the adjacent floor panels; and a plurality of radially inwardly projecting radially inwardly located at the approximate center of the plurality of partitions in the adjacent space. A plurality of claw portions, and a plurality of abutting portions projecting radially inward and respectively abutting on the outer periphery of the support plate , wherein the spacer has a side wall portion having an inner periphery larger than the outer periphery of the support plate. Be prepared
The support device for a double-floor floor panel , wherein the contact portion protrudes radially inward from an inner peripheral surface of the side wall portion . 4. A support leg erected at predetermined intervals on a floor, a support plate fixed to the support leg so as to be adjustable in height, and fixed to an upper surface of the support plate and integrally formed of resin. In a supporting apparatus for a floor panel of a double floor provided with a spacer molded into the above, and a panel holder for pressing a floor panel placed on the upper surface of the spacer toward the upper surface of the spacer, Comprises a head abutting on the upper surface of the floor panel, and a screw shaft suspended from the lower surface of the head, and the spacer has a cylindrical portion into which the screw shaft of the panel press is inserted; A plurality of partitions extending radially from the portion and fitting into the space between the adjacent floor panels, and located at approximately the center of the plurality of partitions adjacent to each other,
A plurality of claws protruding inward in the radial direction hooked on the support plate, and a plurality of contact portions protruding inward in the radial direction and abutting on the outer periphery of the support plate, respectively. A plurality of elastic engaging portions radially inwardly projecting in the radial direction and engaging with the screw shaft, and a plurality of elastic engaging portions located within a space between adjacent elastic engaging portions and extending in the insertion direction of the screw shaft. A support device for a double-floor floor panel, comprising a guide rib. 5. The support for a double-floor floor panel according to claim 1, wherein a rotation operation portion for rotating the panel presser is formed on a surface of the panel presser. apparatus.