JPH0811907B2 - Floor panel connecting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel connecting device, and more particularly to connecting a plurality of floor panels laid on a floor surface to each other by connecting members at positions where corner portions of the floor panels are adjacent to each other. Related to what is effectively used for the technology.

[0002]

2. Description of the Related Art Recently, in an office building or the like, when laying a floor panel on a concrete floor or the like, the floor panel is laid on the floor surface via support legs, and a cable or a cable is installed between the floor panel and the floor surface. A double-floor structure is adopted that secures a free space where ventilation ducts and the like can be arranged.

However, if the floor panel is simply laid on the floor surface and a horizontal load is applied to the floor panel due to an earthquake or the like, the direction in which the horizontal load acts and the direction in which the horizontal load is applied are deviated from each other, thereby generating a rotation moment. , Floor panels may try to shift horizontally from each other. Further, when furniture installed on the floor panel tries to fall, pulling force acts on the floor panel fixed on the side opposite to the falling direction.

Therefore, as described in Japanese Patent Application Laid-Open No. 2-91352, a step portion is formed at a corner portion of a floor panel, a connecting member is mounted in the step portion, and the corner portion of each floor panel is connected. A connecting device for floor panels, which is configured to be connected to each other via a member, has been proposed.

[0005]

However, in the conventional floor panel connecting device, the connecting member is inserted into the through hole formed by the corner portion of the floor panel, and the connecting member is rotated by a predetermined angle. Since the floor panels are connected by doing so, when each floor panel is connected, work for rotating the connecting member is required, resulting in poor work efficiency.

It is an object of the present invention to provide a floor panel connecting device capable of connecting floor panels to each other without rotating the connecting member.

[0007]

In the floor panel connecting device according to the present invention, four floor panels are adjacent to each other among the corner portions of the plurality of floor panels laid on the floor surface through the support legs. Four corner portions are abutted to each other to form a connecting member mounting portion, the connecting member is mounted to the connecting member mounting portion, and the four floor panels are connected to each other by the connecting member. In the floor panel connecting device, the insertion openings are formed at the corners so as to butt each other to form an insertion opening, and the floor panels are horizontally fixed to the outside of the insertion openings at the corners. Each portion is formed, each coupling member side horizontal fixing portion engaged with each floor panel horizontal fixing portion is formed on the lower surface of the connecting member, A holding member is provided so as to project downward at a position corresponding to each of the insertion openings of the connecting member, and engaging claws are provided so as to project radially outward at the lower end of each holding member. In the state where the connecting member is mounted on the connecting member mounting portion, the connecting member side horizontal fixing portions are respectively engaged with the floor panel side horizontal fixing portions, and further, the inward direction of each holding member. The engaging claws are respectively engaged with the lower edges of the insertion openings in a state where the holding members are expanded outward in the radial direction by inserting the expanding members into the surface space. Characterize.

[0008]

According to the above-mentioned means, when the connecting member is attached to the connecting member attaching portion formed by each corner portion of the floor panel, the connecting member side horizontal fixing portion is fixed to each floor panel horizontal fixing portion. The respective holding members are engaged with each other, and the respective holding members are inserted into the insertion openings of the connecting member mounting portions.

Then, when the expanding member is inserted into the inner space of each holding member of the connecting member, the engaging claws at the tips of the holding members are respectively engaged with the lower surface side of the insertion holes. As a result, the floor panels are connected to each other via the connecting member. In this connected state, since each connecting member side horizontal fixing portion is engaged with each floor panel side horizontal fixing portion, each floor panel is in a state in which it is prevented from being radially moved by the connecting member. Has become. Further, since the engaging claws of each holding member are engaged with the lower surface of the insertion opening of the floor panel, the connecting member is prevented from coming out of the connecting member mounting portion of the floor panel.
Therefore, the floor panels are in a state of being reliably connected to each other by the connecting member.

When releasing the connection of each floor panel, the push-out member is raised with respect to the connecting member, and the engaging claws at the tips of the holding members move radially inward, so that the engaging claws are inserted. Since it is separated from the lower surface side of the hole, the connecting member can be easily detached from the connecting member mounting portion of the floor panel.

[0011]

1 is a partially cutaway exploded perspective view showing a floor panel connecting device according to an embodiment of the present invention, and FIG. 2 is a front sectional view showing a state in which the cut surface passes through a horizontal fixing member and a holding member. Figure, Figure 3 is each figure showing the floor panel,
(A) is a partial front sectional view and (b) is a partial plan view.
4A and 4B are views showing the connecting member, and FIG. 4A is a front sectional view in which a cut surface passes through the horizontal fixing member and the holding member,
(B) is a bottom view.

In this embodiment, the floor panel connecting device according to the present invention is used to connect a plurality of floor panels 10 laid on a concrete floor or the like. The floor panel 10 is integrally formed using a material having rigidity such as aluminum or iron.
That is, the floor panel 10 is formed in a substantially square shape (however, in the present embodiment, only the corner portion is shown), and the upper panel 11 and the lower panel 12 are hollowly overlapped with each other. It is integrated.
Further, a filling material 19 such as a soundproof material or a heat insulating material is appropriately filled in the hollow portion of the floor panel 10. It should be noted that the hollow portion of the floor panel 10 may not be filled with the filler.

4 of the corners of each floor panel 10
Steps 13 are formed at the corners of the floor panels 10 adjacent to each other. The four step portions 13 are each formed in a substantially quadrant circular shape, and the four step portions 13 are
Are joined together to form a circular recess 1
4 are formed. The recess 14 is formed so that a connecting member, which will be described later, is fitted and mounted therein. Therefore, the recess 14 substantially constitutes a connecting member mounting portion.

The step portion 13 is formed by bulging downward and upward from the upper panel 11 and the lower panel 12, respectively. Therefore, a pair of circular recesses 14 is vertically symmetrical by the four step portions 13. Has been formed. An insertion port 15 is concentrically arranged in the center of the circular recess 14 to have a circular shape. The circular insertion port 15 is formed by abutting the insertion port portions 15a formed on the four step portions 13, respectively.

On a pair of normal sides of the bottom wall 16 of the step portion 13 which are boundaries between the step portions 13 adjacent to each other, a substantially semi-elliptical notch 17 is provided in the center of the notch 17. Have been opened respectively. Then, a pair of notches 17, 17 formed between the adjacent step portions 13, 13 form a substantially oblong horizontal fixing hole 18. Further, each horizontal fixing hole 18 is arranged so as to extend tangentially on a concentric circle R ₁ centered on the insertion hole 15 formed in the center of the circular recess 14 formed by the four step portions 13. Has been done. The horizontal fixing hole 18 is formed so that a fixing member as a connecting member side horizontal fixing portion, which will be described later, is fitted therein. Therefore, the horizontal fixing hole 18 substantially forms the floor panel side horizontal fixing portion. Is configured.

A connecting member 20 is inserted into and connected to the circular recess 14 formed by the corners of the four floor panels 10. This connecting member 2
Reference numeral 0 denotes a main body 21, which is made of a material having appropriate elasticity and mechanical strength, such as hard resin, and is integrally formed into a substantially cylindrical shape which can be mounted in the circular recess 14 as a whole. There is.

The lower surface of the cylindrical wall 22 of the connecting member main body 21 is fixed in the horizontal direction as a connecting member side horizontal fixing portion having a semi-elliptical shape in the vertical cross section and an oval shape in the cross section. Four members 23 project vertically downward, and each horizontal fixing member 23 is a connecting member main body 21.
Are arranged so as to extend in the tangential direction on the concentric circles R ₁ and have a phase difference of 90 degrees from each other in the circumferential direction. Then, these horizontal fixing members 23 are each fixed in the horizontal direction as a floor panel side horizontal fixing portion in which four pieces are formed on the floor panel 10 side.
It is designed to fit in each.

Inside the cylindrical wall 22 of the connecting member 21, a holding member 24 for holding the connecting member 20 in the circular recess 14 as the connecting member mounting portion of the floor panel.
Are arranged so as to have a phase difference of 90 degrees with respect to each other in the circumferential direction and have a phase difference of 45 degrees with respect to each of the horizontal fixing members 23 in the circumferential direction. It is slightly inclined inward in the radial direction and protrudes downward. The holding member 24 is formed in the shape of a rod having a rectangular cross section whose cross-sectional area gradually increases as it goes downward, and its longitudinal cross section is slightly meandering in an S shape.

Engaging claws 25 are integrally formed on the lower ends of the four holding members 24 so as to project radially outward. These four engaging claws 25 are provided in a state where the connecting member 20 is mounted in the circular recess 14 as will be described later.
Each of the step portions 13 has a position and a shape that can be engaged with the inner peripheral edge lower end surface of the insertion opening 15a.

Inside the four holding members 24, press-fitting holes 26 into which push-out members to be described later are press-fitted are substantially formed by the inward faces of the holding members 24. The press-fitting hole 26 is formed so that the inner peripheral surface thereof gradually decreases as it goes downward, and the holding members 24 are pushed and expanded in a state in which the push-expanding member described later is press-fitted into the press-fitting hole 26. As a result, each engagement claw 25 is engaged with the lower surface of the edge of the insertion opening 15 of the circular recess 14.

The push-spreading member 30 has a main body 31, which is made of a metal such as aluminum or iron.
A material having mechanical strength, such as a resin such as nylon, is used, and is formed in a cylindrical shape having a retaining portion 32 at the lower end and a truncated cone-shaped head 33 at the upper end. The retaining portion 32 protruding from the lower end of the main body 31 is configured so as to be engageable with a holding member of a connecting member described later from below. A tool engaging groove 34 is integrally recessed in the head portion 33, and this groove 34 is formed so that a tool such as a driver can be engaged with the head engaging groove 34.

A male screw portion 35 is integrally formed on the outer periphery of the push-spreading member main body 31, and the male screw portion 35 has a multi-thread structure having a relatively large pitch. That is, as described later, the male screw portion 35 is set so that it can be removed with a small number of rotations when the expanding member 30 is pulled out from the press-fitting hole 26. However, due to the natural force such as the vibration of the floor, the pushing member 30 is pushed into the press-fitting hole
The lead angle is equal to or less than that of a normal male screw (about 5 degrees) so that it will not accidentally come out.

Next, a method of laying the floor panel 10 will be described.

First, the floor panel 10 is placed on the floor surface 41 via the support legs 40 and sequentially arranged and laid. A support leg 40 is screwed near the corner of each floor panel 10 and protrudes downward in the vertical direction, and each floor panel 10 is floated on the floor surface 41 via the support leg 40. Will be supported by.

Thereafter, circular recesses 14 are formed at the corners of the four floor panels 10 as connecting member mounting portions.
The connecting member 20 is inserted and mounted inside. That is,
In the aligned state, the connecting member 20 has a circular recess 14
When inserted into the inside, the four horizontal fixing members 23 on the connecting member side are engaged with the respective horizontal fixing holes 18 on the floor panel side, and the four holding members 24 are inserted. It is inserted into the mouth 15 from above.

Subsequently, the pushing and expanding member 30 is connected to the connecting member 20.
When press-fitted into the press-fitting holes 26 of the four holding members 24, the four holding members 24 are pushed outward by the push-expanding member main body 31 in the radial direction. It is engaged with the lower surface side of the opening edge of the opened insertion port 15. At this time, the retaining portion 32 protruding from the tip of the push-spreading member main body 31 is in a state of being pushed down below the group of engaging claws 25.

By the engagement of the engaging claws 25 with the insertion opening 15, the connecting member 20 is prevented from coming out upward from the circular recess 14 as the connecting member mounting portion on the floor panel 10 side. Further, since the male screw portion 35 of the push-expanding member 30 press-fitted into the press-fitting hole 26 bites into the inner peripheral surface of the press-fitting hole 26, the push-expanding member 30 is prevented from accidentally coming out upward from the press-fitting hole 26. become.

On the other hand, by inserting the four horizontal fixing members 23 on the floor panel side into the horizontal fixing holes 18 on the connecting member side, the floor panels 10 are prevented from separating from each other in the horizontal direction. It Due to the fixing action of the horizontal fixing member 23, the four floor panels 10 are reliably connected to each other through the connecting member 20, so that the four floor panels 10 are displaced from each other in the horizontal direction. Can be reliably prevented.

In the event that it becomes necessary to disconnect the floor panels 10 from each other, the tip of the driver is mounted in the tool engaging groove 34 of the push-spreading member 30, and the push-spreading member 3 is pushed.
0 is rotated a few times. Due to the rotation of the push-spreading member 30, the male screw portion 35 biting into the inner peripheral surface of the press-fitting hole 26 moves along the biting groove, so that the main body 31 of the push-spreading member 30 comes out upward from the press-fitting hole 26. Become.

The body 31 of the push-spreading member 30 has the press-fitting hole 26.
When pulled out, the four holding members 24 return to the central portion side, so that the engagement of each engagement claw 25 with the insertion port 15 is released. When the engagement of the engaging claw 25 with the insertion port 15 is released, the connecting member 20 can be easily pulled out upward from the circular recess 14 of the floor panel 10. On this occasion,
When the head 33 of the push-spreading member 30 is picked up, the retaining portion 32 protruding from the lower end of the push-spreading member 30 is engaged with the inner end of each engaging claw 25 of the connecting member 20 from below. Therefore, the connecting member 20 can be easily pulled out from the circular recess 14 by picking up the pushing and expanding member 30.

In this manner, by pulling out the push-spreading member 30, the connecting member 20 can be easily detached from the circular recess 14 serving as the connecting member mounting portion of the four floor panels 10. Then, when the connecting member 20 is detached from the circular recess 14, the connection between the floor panels 10 is released, so that each floor panel 10 can be moved with respect to the floor surface 41.

As described above, according to this embodiment,
By inserting the connecting members 20 into the circular recesses 14 formed at the corners of the four floor panels 10 and pressing the expanding members 30 into the connecting members 20, the floor panels 10 are connected to each other. It is possible to connect via the, and the work efficiency can be improved.

If it is necessary to move the floor panel 10 after the group of floor panels 10 has been laid, the pushing member 30 is raised in the press-fitting hole 26 of the joining member 20 to raise the joining member. Since the connection between the four floor panels 10 by 20 can be released, each floor panel 10 can be moved with respect to the floor.

5A and 5B are views showing a floor panel connecting device according to a second embodiment of the present invention. FIG. 5A is a front sectional view through a horizontal fixing portion and a holding member, and FIG. Is. 6A and 6B are views showing the connecting member, FIG. 6A is a partially cutaway plan view, and FIG. 6B is a front sectional view passing through the horizontal fixing portion and the holding member.

The main difference of the second embodiment from the first embodiment is the structure of the connecting member mounting portion and the connecting member in the floor panel 10A.

That is, among the corner portions of each floor panel 10A, the channel-shaped portions 13A are formed by bending at the corner portions where four floor panels 10A are adjacent to each other. Each of the four channel-shaped portions 13A is bent into a channel-shaped steel shape having a concave vertical cross-section and is bent into a substantially quadrant circular shape in a plan view by pressing or the like. By coupling with each other, a concave portion 14A having a circular shape as a whole is formed. The recess 14A is formed so that a connecting member, which will be described later, is fitted and mounted, and thus the recess 14A substantially constitutes a connecting member mounting portion.

The channel-shaped portion 13A is arranged so as to be located on the upper surface side of the floor panel 10A.
That is, the channel-shaped portion 13A is arranged such that the upper surface of the connecting member 20A mounted in the recess 14A formed by the channel shape 13A is in a state of being aligned with the upper surface of the floor panel 10A.

By the inner hollow portion of the circular recess 14A as the connecting member mounting portion, the through holes 15A for inserting the holding member of the connecting member, which will be described later, are concentrically arranged and substantially opened in the circular shape. It is in the state of being
This circular insertion port 15A has four channel-shaped portions 13
The insertion openings formed in A are abutted against each other.

Further, the channel (groove) of the channel-shaped portion 13A is formed so that the horizontal fixing convex portion on the connecting member side of the connecting member described later can be fitted therein. That is, the fixing recess 18A as the floor panel side horizontal fixing portion is substantially constituted by the groove of the channel-shaped portion 13A. The four floor panel side horizontally fixed recessed portions 18A are formed concentrically with the circular recessed portion 14A.

A circular concave portion 14A as a connecting member mounting portion constituted by four corner portions of the floor panel 10
The connecting member 20A shown in FIG. 6 is inserted into and connected to the inside. The connecting member 20A includes a main body 21A. The main body 21A is made of a material having appropriate elasticity and mechanical strength such as hard resin, and can be fitted into the outer circular hole of the circular recess 14A as a whole. It is integrally molded into a plate shape.

At the outer peripheral portion of the lower surface of the connecting member main body 21A, a horizontal fixing convex portion 23A as a connecting member side horizontal fixing portion having a substantially rectangular vertical cross section and an arc cross section is formed. Four vertically protruding downward, and each horizontal fixing member 23A is arranged concentrically with the connecting member main body 21A and with a phase difference of 90 degrees in the circumferential direction. The horizontal fixing members 23A are configured to be fitted in the horizontal fixing recesses 18A as the floor panel side horizontal fixing portions.

A holding member 24A for holding the connecting member 20A in the circular concave portion 14A as the connecting member mounting portion of the floor panel is provided inside the fixed convex portions 23A on the lower surface of the connecting member body 21A in the circumferential direction. Are arranged so as to have a phase difference of 90 degrees with each other, and in a natural state, they are largely inclined radially inward and project downward. The holding member 24A is appropriately curved and formed in a tapered shape, and its tip end is directed inward in the radial direction and is in a substantially horizontal state.

Engaging claws 25A are integrally provided at the lower ends of the four holding members 24A so as to project outward in the radial direction like chicken kicking claws. These four engaging claws 2
5A, the connecting member 20A has a circular recess 14A as described later.
4 channel-shaped parts 1 when mounted on the
The position and shape are such that they can be engaged with the lower end surface of the inner peripheral edge of the insertion opening in each of 3A.

Inside the four holding members 24A,
An insertion hole 26A into which a pushing and expanding member, which will be described later, is inserted is substantially formed by the inward surface of each holding member 24A. Since each holding member 24A is configured as described above, the insertion hole 26A is formed such that the inner peripheral surface thereof has a large inner diameter that decreases downward, and the insertion hole 26A is pushed by When the expanding member is inserted, the expanding member expands each holding member 24A, so that each engaging claw 25A is engaged with the lower surface of the edge of the insertion opening 15A of the circular recess 14A.

The push-out member 30A is provided with a main body 31A, and the main body 31A is made of a metal having a mechanical strength such as a metal such as aluminum or iron, or a resin such as nylon, and is pulled out at the lower end. It is formed in a columnar shape having a stop portion 32A and a truncated cone-shaped head portion 33A at the upper end portion. A tool engaging groove 34A is integrally recessed in the head portion 33A, and the groove 34A is formed so that a tool such as a driver can be engaged with the head engaging portion 34A.

A male screw portion 35A is integrally formed on the outer circumference of the push-spreading member main body 31A.
A has a multiple thread structure with a relatively large pitch. That is, the male screw portion 35A is, as described later,
When the push-out member 30A is pulled out from the insertion hole 26A, the push-out member 30A is set to come out with a small number of rotations. However, due to natural forces such as floor vibrations, the pushing member 30A
The lead angle is equal to or less than that of a normal male screw (about 5 degrees) so that it will not accidentally come out of the insertion hole 26A.

The outer diameter of the body 31A of the push-spreading member 30A is set to be larger than the inner-diameter dimension of the tips of the holding members 24A in the natural state, and the push-spreading member 30A has the insertion hole. In the state of being inserted in 26A, the outer circumference of the push-out member main body 31A is pressed against the tip end surface of each holding member 24A, so that each holding member 24A is pushed outward in the radial direction.

Next, a method of laying the floor panel 10A will be described.

First, as in the first embodiment, the floor panel 10A is placed on the floor surface 41 via the support legs 40 and sequentially arranged and laid (see FIGS. 2 and 3).

After that, the circular concave portion 1 as the connecting member mounting portion formed in the corner portion of the four floor panels 10A.
The connecting member 20A is inserted and mounted in the 4A. That is, when the connecting member 20A is inserted into the circular concave portion 14A in the aligned state, the four horizontal fixing convex portions 23A on the connecting member side are respectively inserted in the horizontal fixing concave portions 18A on the floor panel side. As well as being fitted, the four holding members 24A are inserted into the insertion opening 15A from above.

Subsequently, the push-spreading member 30A is connected to the connecting member 2.
When inserted into the insertion hole 26A of 0A, the four holding members 24A are pushed outward by the outer periphery of the main body 31A in the radial direction, so that the engagement claws 25A are formed on the bottom wall of the circular recess 14A of the floor panel 10A. Opened 15A
Are respectively engaged with the lower surfaces of the opening edges. At this time, the retaining portion 32A protruding from the tip of the push-spreading member 30A is in a state of being pushed down below the engaging claw 25A.

By engaging the engaging claws 25A with the insertion openings 15A, the connecting member 20A is prevented from coming out upward from the circular recess 14A serving as the connecting member mounting portion on the floor panel 10A side. Further, since the tip end portion of each holding member 24A meshes with the thread groove of the male screw portion 35A of the push-expanding member 30A inserted into the insertion hole 26A, the push-expanding member 30A may not accidentally come out upward from the insert hole 26A. Being prevented.

On the other hand, the four horizontal fixing concave portions 18A on the floor panel side are the respective horizontal fixing convex portions 23A on the connecting member side.
Each floor panel 1 by being fitted into
The 0A's are prevented from separating horizontally from each other. Due to the fixing action of the horizontal fixing member 23A, the connecting member 2
Since the four floor panels 10A are reliably connected to each other via 0A, it is possible to reliably prevent the four floor panels 10A from horizontally shifting from each other.

Should it be necessary to release the connection between the floor panels 10A, the tip of the driver is mounted in the tool engagement groove 34A of the push-spreading member 30A, and the push-spreading member 30A rotates a few times. To be done. This pushing member 30
Due to the rotation of A, the tip ends of the holding members 24A of the connecting member 20A relatively move along the thread groove of the male screw portion 35A, so that the main body 31A of the expanding member 30A comes out upward from the insertion hole 26A. Become.

When the main body 31A of the push-spreading member 30A is pulled out from the insertion hole 26A, the four holding members 24A are returned to the central portion side, so that the insertion holes 1 by the respective engaging claws 25A are inserted.
The engagement with 5A is released. Insertion port 15 of engaging claw 25A
When the engagement with A is released, the connecting member 20A can be easily pulled out upward from the circular recess 14A of the floor panel 10A. At this time, the head 33 of the pushing member 30A
When A is picked up, the retaining portion 32A projecting from the lower end of the push-spreading member 30A has the engaging claws 2 of the connecting member 20A.
Since the state is engaged with the inner end portion of 5A from the lower side, the coupling member 20A can be easily pulled out from the circular recess 14A by picking up the pushing and expanding member 30A.

In this way, by pulling out the pushing and expanding member 30A, the connecting member 20A can be easily detached from the circular recess 14A serving as the connecting member mounting portion of the four floor panels 10A. And the connecting member 20
When A is removed from the circular recess 14A, the connection between the floor panels 10A is released, so that each floor panel 1
OA can be moved with respect to the floor surface 41.

As described above, also in the second embodiment, similar to the first embodiment, the circular concave portion 1 in which the connecting member 20A is formed in the corner portion of the four floor panels 10A is formed.
4A, and pushes and expands the connecting member 20A into the connecting member 20A.
The floor panels 10A can be connected to each other via the connecting members 20A only by performing the operation of inserting, and the work efficiency can be improved.

If it is necessary to move the floor panel 10A after laying the floor panel 10A group, the push-expanding member 30A is raised in the insertion hole 26A of the connecting member 20A. Since the four floor panels 10A can be disconnected from each other by 20A, each floor panel 10A can be moved with respect to the floor.

FIG. 7 is a front sectional view showing a connected state of a floor panel connecting device according to a third embodiment of the present invention. FIG.
FIG. 6 is a front sectional view showing the released state.

The main difference of the third embodiment from the first embodiment is the structure of the connecting member and the pushing and expanding member.

Of the corners of each floor panel 10B, the corners adjacent to the four floor panels 10B are
Steps 13B are formed respectively. 4 steps 13
B is formed in a substantially quadrangular shape, and the four step portions 13B are combined to form a circular recess 14B as a whole. The recess 14B is formed so that a connecting member, which will be described later, is fitted and mounted therein. Therefore, the recess 14B substantially constitutes a connecting member mounting portion.

The insertion opening 1 is provided at the center of the circular recess 14B.
5B are arranged concentrically and opened in a circular shape. The circular insertion opening 15B is formed by abutting the insertion openings formed on the four stepped portions 13B.

A pair of normal side edges, which serve as boundaries between the adjacent step portions 13B in the bottom wall 16B of the step portion 13B, are each provided with a substantially semi-elliptical notch, which is arranged in the approximate center. Each has been opened. Then, the adjacent step portions 13B, 13
A pair of notches formed between the Bs form a substantially elliptical horizontal fixing hole 18B. Further, each horizontal fixing hole 18B is arranged so as to extend in a tangential direction on a concentric circle centered on an insertion opening 15B formed at the center of a circular recess 14B formed by four step portions 13B. There is. The horizontal fixing hole 18B is formed so that a fixing member as a connecting member-side horizontal fixing portion, which will be described later, is fitted therein. Therefore, the horizontal fixing hole 18B substantially forms the floor panel side horizontal fixing portion. Is configured.

In the circular concave portion 14B formed by the corner portions of the four floor panels 10B, the connecting member 20 is provided.
B is inserted and connected. The connecting member 20B includes a main body 21B.
Is made of a material having appropriate elasticity and mechanical strength, such as hard resin, and is integrally molded into a substantially disk shape that can be mounted in the circular recess 14B as a whole.

On the lower surface of the connecting member main body 21B, four horizontal fixing members 23B, which are semi-elliptical in vertical cross section and oval in horizontal cross section, are provided as the horizontal fixing portions on the connecting member side. The vertical fixing members 23B are provided so as to extend downward in the vertical direction, and the horizontal fixing members 23B are arranged so as to extend tangentially on the concentric circles of the connecting member main body 21B and have a phase difference of 90 degrees from each other in the circumferential direction. It is set up. Then, these horizontal fixing members 23B are respectively fitted into the respective horizontal fixing holes 18B as the floor panel side horizontal fixing portions formed with four pieces on the floor panel 10B side.

Further, inside the horizontal fixing member 23B group in the connecting member 21B, holding cylinders 24B for holding the connecting member 20B in the circular recess 14B as the connecting member mounting portion of the floor panel are concentrically arranged. Is projected downward. As shown in FIG. 8, the holding cylinder 24B is formed in a natural state such that it has a substantially inverted rocket shape in which the upper cylindrical portion is connected to the lower conical cylindrical portion. Then, when the push-expanding member is press-fitted in the holding cylinder 24B, the connecting portion between the conical cylindrical portion and the cylindrical portion expands outward in the radial direction as shown in FIG. It is supposed to do.

Engaging claws 25B are provided on the outer circumference of the middle bent portion of the cylindrical portion of the holding cylinder 24B so as to project radially outward in a ring shape. The engagement claw 25B is used for connecting member 2 as described later.
In a state in which 0B is mounted in the circular recess 14B, the position and shape are such that they can be engaged with the inner peripheral edge lower end surface of the insertion opening in each of the four step portions 13B.

Further, inside the holding cylinder 24B, a press-fitting hole 26B into which a later-described push-spreading member is press-fitted is substantially formed by the inward surface of the cylinder hollow portion. A protrusion 27 is formed in the inner peripheral surface of the press-fitting hole 26B in the height direction so that the inner diameter gradually decreases as it goes downward.
In the state in which the push-expanding member to be described later is press-fitted, the holding cylinder 24B is pushed outward in the radial direction so that the engaging claw 25B is engaged with the lower surface of the edge of the insertion opening 15B of the circular recess 14B. There is.

Further, a plurality of projections 28 are formed in a hemispherical shape and project radially inward on the upper end portion of the inner peripheral surface of the holding cylinder 24B. It is configured to mesh with the male screw portion.

The push-out member 30B is provided with a main body 31B. The main body 31B is made of a metal having a mechanical strength such as a metal such as aluminum or iron, or a resin such as nylon, and has a taper at the lower end. It is formed in a cylindrical shape having a portion 32B and a disk-shaped head portion 33B at the upper end. A tool engaging groove 34B is integrally recessed in the head portion 33B, and the groove 34B is formed so that a tool such as a driver can be engaged with the head engaging portion 34B.

A male screw portion 35B is integrally formed on the outer circumference of the push-spreading member main body 31B.
B has a multi-threaded structure having a relatively large pitch. That is, the male screw portion 35B is, as described later,
When the push-out member 30B is pulled out from the press-fitting hole 26B, the push-out member 30B is set to come out with a small number of rotations. However, due to the natural force such as floor vibration, the pushing member 30B
The lead angle is equal to or less than that of a normal male screw (about 5 degrees) so that it will not accidentally come out of the press-fitting hole 26B.

Next, a method of laying the floor panel 10B will be described.

First, the floor panel 10B is placed on the floor surface 41 via the support legs 40 and sequentially arranged and laid (see FIGS. 2 and 3).

After that, the circular recess 1 as a connecting member mounting portion formed at the corners of the four floor panels 10B.
The connecting member 20B is inserted and mounted in the 4B. That is, when the connecting member 20B is inserted into the circular recess 14B in the aligned state, the four horizontal fixing members 23B on the connecting member side are engaged in the respective horizontal fixing holes 18B on the floor panel side. As it becomes a combined state,
The holding cylinder 24B is inserted into the insertion port 15B from above.

Then, the push-spreading member 30B is connected to the connecting member 2.
When press-fitted into the press-fitting hole 26B of 0B, the holding cylinder 24B is expanded outward in the radial direction, so that the engaging claw 25B opens the edge of the insertion port 15B formed in the bottom wall of the circular recess 14B of the floor panel 10B. The lower surface side is engaged.

The engagement of the engaging claw 25B with the insertion port 15B prevents the connecting member 20B from being pulled out upward from the circular recess 14B serving as the connecting member mounting portion on the floor panel 10B side. Further, the male screw portion 35B of the push-spreading member 30B press-fitted into the press-fitting hole 26B is the press-fitting hole 2B.
The push-spreading member 30B is prevented from accidentally coming out upward from the press-fitting hole 26B because it engages with the projection 28 provided on the inner peripheral surface of 6B.

On the other hand, by inserting the four horizontal fixing members 23B on the floor panel side into the respective horizontal fixing holes 18B on the connecting member side, each floor panel 10
The B's are prevented from separating from each other in the horizontal direction. Due to the fixing action of the horizontal fixing member 23B, the connecting member 20
Since the four floor panels 10B are surely connected to each other via B, it is possible to reliably prevent the four floor panels 10B from horizontally shifting from each other.

In the unlikely event that it becomes necessary to disconnect the floor panels 10B from each other, the tip of the driver is mounted in the tool engagement groove 34B of the pushing member 30B, and the pushing member 30B rotates a few times. To be done. This pushing member 30
The rotation of B causes the protrusion 28 projecting on the inner peripheral surface of the press-fitting hole 26B to relatively move along the thread groove of the male screw portion 35B, so that the body 31B of the push-spreading member 30B is pressed into the press-fitting hole 2B.
It will come out from 6B upwards.

When the main body 31B of the push-spreading member 30B is pulled out from the press-fitting hole 26B, the holding cylinder 24B returns to the center side, so that the engagement of the engaging claw 25B with the insertion opening 15B is released. When the engagement of the engaging claw 25B with the insertion port 15B is released, the connecting member 20B is fixed to the floor panel 10B.
It can be easily pulled out upward from the circular recess 14B. At this time, when the head portion 33B of the push-spreading member 30B is picked up, the protrusion 28 remains engaged with the lower end portion of the male screw portion 35B of the push-spreading member 30B.
By pulling up the push-spreading member 30B, the connecting member 20B can be easily pulled out from the circular recess 14B.

By pulling out the pushing member 30B in this manner, the connecting member 20B can be easily detached from the circular recess 14B serving as the connecting member mounting portion of the four floor panels 10B. And the connecting member 20
When B is removed from the circular recess 14B, the connection between the floor panels 10B is released, so that each floor panel 1
OB can be moved with respect to the floor surface 41.

As described above, also in the third embodiment, the connecting member 20B is inserted into the circular recess 14B formed in the corner portion of the four floor panels 10B, and the expanding member 30B is pushed on the connecting member 20B. Each floor panel 10B can be connected via the connecting member 20B only by performing the press-fitting operation, and the work efficiency can be improved.

Should it be necessary to move the floor panel 10B after the floor panel 10B group has been laid, the pushing member 30B is lifted from the connecting member 20B to raise the four floors by the connecting member 20B. Since the panels 10B can be disconnected from each other, each floor panel 10B can be moved with respect to the floor.

It is needless to say that the present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the scope of the invention.

For example, the horizontal fixing holes formed in the stepped portion are not limited to being formed by a pair of notched portions each formed in a semi-elliptical shape on the normal side of the stepped portion, and may be formed in the middle portion of each stepped portion. It may be formed in a circular shape or an arc shape.

The male screw portion and the retaining portion formed on the pushing and expanding member may be omitted.

Since it is not necessary to rotate the connecting member with respect to the connecting member mounting portion formed by the corners of the four floor panels, the connecting member mounting portion and the connecting member do not necessarily have to be formed in a circular shape.

[0087]

As described above, according to the present invention,
Since each floor panel can be connected through the connecting member without rotating the connecting member, the work efficiency in laying the floor panel can be improved.
Further, after connecting the floor panels to each other, the connection can be released by an extremely easy operation, if necessary.

[Brief description of drawings]

FIG. 1 is a partially cutaway exploded perspective view showing a floor panel connecting device according to an embodiment of the present invention.

FIG. 2 is a front cross-sectional view showing the assembled state in which a cut surface passes through a horizontal fixing member and a holding member.

3A and 3B are views showing a floor panel, in which FIG. 3A is a partial front sectional view and FIG. 3B is a partial plan view.

FIG. 4 is a view showing a connecting member, in which (a) is a front cross-sectional view of a cut surface passing through a horizontal fixing member and a holding member;
(B) is a bottom view.

5A and 5B are views showing a floor panel connecting device according to a second embodiment of the present invention, in which FIG. 5A is a front sectional view passing through a horizontal fixing portion and a holding member, and FIG. .

6A and 6B are views showing a connecting member, in which FIG. 6A is a partially cutaway plan view and FIG. 6B is a front sectional view passing through a horizontal fixing portion and a holding member.

FIG. 7 is a front cross-sectional view showing a connected state of the floor panel connecting apparatus according to the third embodiment of the present invention.

FIG. 8 is a front sectional view showing the released state.

[Explanation of symbols]

10, 10A, 10B ... Floor panel, 11 ... Top panel, 12 ... Bottom panel, 13, 13B ... Step section, 13A ...
Channel-shaped portion, 14, 14A, 14B ... Circular recess,
15, 15A, 15B ... Insertion port, 15a ... Insertion port portion, 1
6, 16B ... Bottom wall, 17 ... Notch, 18, 18B ... Horizontal fixing hole, 18A ... Horizontal fixing recess, 19 ... Filler, 20, 20A, 20B ... Coupling member, 21, 21A,
21B ... Connection member main body, 22 ... Cylindrical wall, 23, 23A, 2
3B ... Horizontal fixing member, 24, 24A, 24B ... Holding member, 25, 25A, 25B ... Engaging claw, 26, 26B ...
Press-fitting hole, 26A ... insertion hole, 27 ... protruding part, 28 ... protrusion,
30, 30A, 30B ... Pushing and expanding member, 31, 31A,
31B ... Main body, 32, 32B ... Tapered portion, 32A ... Retaining portion, 33, 33A, 33B ... Head portion, 34, 34
A, 34B ... Tool engaging groove, 35, 35A, 35B ... Male screw portion, 40 ... Support leg, 41 ... Floor surface, 27 ... Projection portion.

Claims (5)

[Claims] 1. A connecting member in which four corners are butted to a corner adjacent to four floor panels out of the corners of a plurality of floor panels laid on the floor via support legs. A mounting portion is formed, and the connecting member is mounted on the connecting member mounting portion.
In a floor panel connecting device in which a plurality of floor panels are connected to each other, insertion openings are formed at the corners such that the insertion openings abut against each other to form an insertion opening, and the insertion openings at the corners are formed. Each floor panel side horizontal fixing portion is formed on the outside of, and each connecting member side horizontal fixing portion engaged with each floor panel horizontal fixing portion is formed on the lower surface of the connecting member. Holding members project downward at positions corresponding to the respective insertion openings of the connecting member, and engaging claws project radially outward at the lower ends of the holding members. When the connecting member is mounted on the connecting member mounting portion, the connecting member-side horizontal fixing portions are engaged with the floor panel-side horizontal fixing portions, respectively. In addition, in a state where each holding member is pushed outward in the radial direction by inserting the pushing spread member into the inward space of each holding member, the engaging claws are arranged so that A floor panel connecting device, characterized in that the floor panel connecting devices are respectively engaged with the floor panel. 2. The floor panel side horizontal fixing portion is formed by a fixing hole formed in the connecting member mounting portion of the floor panel, and the connecting member side horizontal fixing portion is formed by a fixing member fitted in the fixing hole. The floor panel coupling device according to claim 1, wherein the floor panel coupling device is configured. 3. The floor panel side horizontal fixing portion is constituted by a fixing concave portion formed in the connecting member mounting portion of the floor panel, and the connecting member side horizontal fixing portion is fitted into the fixing concave portion. The floor panel connecting device according to claim 1, wherein the connecting device is a floor panel connecting device. 4. A male screw portion having a large pitch interval is formed by a multiple thread on the outer peripheral surface of the push-spreading member, and a tool engaging groove is formed in the head portion. The floor panel connecting device according to 1. 5. A retaining portion, which engages with an engaging claw of a horizontal fixing portion on the connecting member side from below, is provided at the tip of the pushing and expanding member so as to project radially outward. Item 2. A floor panel connecting device according to item 1.