JP5836173B2 - Connecting structure of flooring - Google Patents

Description

  The present invention relates to a connecting structure of floor materials constituting a floor surface on a floor base surface.

  As the connecting structure of the floor material that constitutes the floor surface on the floor base surface, the edge treatment material and connecting member for eliminating the width adjustment according to the width of the installation space at the edge of the floor material and the step difference from the floor surface A connection structure using a slab is disclosed (Patent Document 1). Since the connecting member disclosed in Patent Document 1 is integrally molded with an elastomer or rubber, the engaging member provided on the connecting member is provided on the floor material while exhibiting a function as a cushioning material. It is the connection structure of the flooring which can be attached or detached to the to-be-engaged part.

  Furthermore, as a connecting structure between floor materials constituting the floor surface on the floor base surface, female connecting portions having a plurality of long holes are provided on two sides of the rectangular floor material, and a plurality of male members are provided on the remaining two sides. Connection between floor materials in which adjacent floor materials are connected to each other by connecting the male connection portion to a female connection portion provided at a position where the adjacent floor materials are opposed to each other. A structure is disclosed (Patent Document 2).

JP 11-107500 A JP 2008-101381 A

The connecting structure of floor materials disclosed in Patent Document 1 is a connecting member that is placed on a floor base surface with elasticity in a state in which the floor materials and end treatment materials are arranged and the corner portions face each other. By engaging the engaging part provided on the floor to the engaged part provided on the flooring, it is possible to connect the flooring to each other, the flooring and the edge treatment material, and the edge treatment material. is there.
However, with such a flooring connection structure, since the connecting member has elasticity, when the floor base is uneven, it can absorb some unevenness, but it is not like a recess or valley. In the case of unevenness such as unevenness or unevenness, if adjacent flooring materials are connected to each other, the connecting part on the back surface of the flooring material expands and an unreasonable force is applied to the connecting member. In addition, the unevenness cannot be sufficiently absorbed, and the floor surface is in an unstable state in which the floor surface is lifted from the floor surface of the uneven surface.

Furthermore, if it is the flooring connection structure disclosed in Patent Document 1, it can not be said that the locking force at the time of connection is perfect because the connecting member is molded integrally with elastomer or rubber as a whole. There is a risk that the flooring will be rolled up during strong winds, or the flooring may be disconnected due to the connection between the flooring materials.
Alternatively, since the connecting member is not designed to be able to cope with the thermal expansion / contraction margin in the horizontal direction of the flooring (the flooring laying direction), the flooring may be rolled up due to thermal expansion / contraction.
In addition, when there is a dimensional error in the floor material to be laid, it is difficult to lay the floor material while absorbing the dimensional error.

  In addition, when the peripheral edge of the flooring is warped in the thickness direction due to molding failure or thermal expansion or contraction, or when it is deformed in a wave shape, the opposing corners at both ends of the peripheral edge of the adjacent flooring are When trying to connect with the same height, the steps (unevenness) between the peripheral edges facing each other may become conspicuous and the appearance may deteriorate.

On the other hand, in the flooring connection structure disclosed in Patent Document 2, a female connecting part is provided on two adjacent sides of a rectangular flooring, and a male connecting part is provided on the remaining two sides. The connecting structure of the matching flooring is a vertical fitting type.
With such a connection structure, if only one floor material is to be removed from the floor surface constructed by laying the floor material on the floor base surface, it cannot be removed unless the adjacent floor materials are lifted up once It is.
Further, if there is a dimensional error or molding failure or damage in any one of the male connecting portion and the female connecting portion, it may be difficult to connect the floor materials.
In addition, when either the male connecting portion or the female connecting portion is provided protruding from the outside of the floor material body, the male connecting portion or the female connection that is not used for the connection of the flooring located at the end of the floor surface The part remains in a protruding state, and the laid floor surface looks worse, or the labor of having to cut off the male connection part or the female connection part that has not been used for connection increases.

  The present invention has been made in view of the above circumstances, and easily connects adjacent floor materials while absorbing dimensional errors of the floor material, deformation of the peripheral edge and unevenness of the floor ground surface when laying the floor material. -It aims at providing the connection structure of the flooring which can be released | released and can remove | remove arbitrary one flooring from the laid floor surface easily. If any one floor material can be easily removed from the laid floor, not only will the floor undersurface be cleaned and maintained, but it will also be easy to replace it with a new one if the connecting member is damaged. Thus, the connection strength can be maintained.

In order to achieve the above object, the floor material connection structure of the present invention is a floor material connection structure for connecting adjacent rectangular floor materials, and the floor materials are connected by a connecting member, the both end portions of the connecting member is provided engaging portion for connecting the flooring together, between the two ends stretchable portion is provided et been flooring between rectangular joints adjacent is provided, It is a flooring connection structure characterized by being connected at joint portions facing each other by the connecting member.

The floor material is not particularly limited, but is usually composed of a synthetic resin floor material body and a plurality of decorative materials fixed to the floor material body.
When a plurality of decorative materials are fixed to one floor material body, it is preferable that a joint portion is formed between adjacent decorative materials.
Note that the decorative material may be formed integrally with the flooring main body, and in this case, it is preferable that the joint portion is formed also for the decorative material formed integrally with the flooring main body.

When the material of the floor material is made of synthetic resin, for example, polypropylene, polyethylene, EVA (ethylene-vinyl acetate copolymer) resin, polyvinyl chloride, ABS (acrylonitrile-butadiene-styrene copolymer) resin, etc. These thermoplastic resins can be mentioned.
If necessary, a thermal stabilizer, a stabilizing aid, a lubricant, a processing aid, an antioxidant, a light stabilizer, a pigment, a filler, and the like may be added to the thermoplastic resin.
The material of the decorative material is not particularly limited, and examples thereof include inorganic fired bodies such as porcelain tiles, wood, synthetic resins, metals, natural stones, and composite materials thereof.

  The material of the connecting member used in the connecting structure of the present invention is not particularly limited, but it is preferably a metal or a thermoplastic resin in consideration of processability, productivity, handleability, versatility, cost, and the like. In the case of a metal, it is preferable to use a rust-resistant material such as stainless steel or to give a rust prevention treatment such as painting or plating.

  Locking portions are provided at both ends of the connecting member. The structure of the locking portion is not particularly limited, and a locking piece or a locking hole is provided at both ends of the connecting member, and the locking hole or the locking piece is also provided at a position facing an adjacent flooring. And a structure in which an opposing locking piece is inserted into the locking hole, and is locked by a nail, a screw, a bolt and a nut, a snap pin, a snap button, etc. May have been made.

As the structure of the locking portion, for example, when locking pieces are provided at both ends of the connecting member and locking holes are provided at appropriate positions facing adjacent flooring materials, the locking holes are opened. Is formed substantially equal to the cross-sectional size of the locking piece to be inserted, and when the locking piece is inserted into the locking hole, it is pulled out by the frictional force when the locking piece is inscribed in the locking hole. The size may be a fastening structure.
The appropriate position is adjacent so that a predetermined distance is secured between the adjacent floor materials when the adjacent floor materials are connected using the connection member according to the connection structure of the present invention. It is the position of the locking hole provided facing the flooring. In addition, the locking piece provided in the locking portion is gradually expanded from the tip and then contracted, so that the size of the cross section at the maximum bulging portion is the opening of the locking hole. The size of the cross section of the reduced portion may be made smaller than the size of the opening of the locking hole. Furthermore, the locking piece is provided with a slit from the tip, and after the locking piece is press-fitted into the locking hole, the stress applied to the locking piece is released and the maximum bulge is released. The locking piece may be configured to be retained from the locking hole by the portion.

  An expansion / contraction part, which is a feature of the present invention, is provided between both ends of the connecting member. The expansion / contraction part is not particularly limited as long as both ends of the connection member can move in the vertical and horizontal directions via the expansion / contraction part, and a part of the connection member has an inverted V shape, It may have a structure that is bent in an inverted U shape or Z shape, or a coil shape, a wave shape, etc., and a spring property is imparted to the connecting member. A structure in which the body is fixed and connected with a material having elasticity and flexibility such as a spring, a bellows tube, and hard rubber may be used. As the fixing means, any fixing means such as a nail, a bolt, a binding band, a hose band, or the like may be used in addition to bonding using an adhesive.

It is preferable that the connection member is used as a connection structure that connects joint portions facing each other in adjacent flooring materials.
In this case, the connecting member may be used for the purpose of connecting all the joint portions of the adjacent floor materials, but if the connection between the adjacent floor materials can be secured, all the joints facing each other. You may use for the connection of some joint parts arbitrarily selected from parts.
For example, if nine flooring materials are fixed on one flooring body, two joints are formed vertically and horizontally on the nine flooring materials, and adjacent flooring materials are connected to each other. When doing, the connection member of this invention may be used 1 place, and 2 places may be used.
If the floor material body and the decorative material are integrally formed, or the floor material is not provided with a decorative material, and the joint portion is difficult to be specified, the groove formed on the surface of the floor material or You may connect this groove part or recessed parts with the connection member which concerns on the connection structure of this invention by making a recessed part into a joint part.

  In addition, when adjacent floor materials are connected to each other by the connection member according to the connection structure of the present invention, the upper end portion of the connection member does not protrude greatly on the surface of the floor material (or the decorative material fixed to the floor material body). In addition, it is preferable that the height of the connecting member is designed from the viewpoint of design, safety, maintainability, and the like. Specifically, the upper end of the connecting member is fixed to the flooring (or the flooring main body). It is preferable that the height of protrusion on the surface of the decorative material is 2 mm or less. If it is larger than 2 mm, it is easy to spread and the design property is lowered, and foreign matters such as dust are easily caught, and the maintainability may be lowered. In addition, it is more preferable that the height dimension of the connecting member is designed so that the connecting member fits within the joint depth of the flooring (the upper end of the connecting member does not jump out on the surface of the flooring).

Since the connection member according to the floor material connection structure of the present invention is not used for connection between corner portions of the floor material, the floor material of different modules can be easily connected.
For example, two 30 cm square flooring materials are connected in series on the long side of a 30 cm × 60 cm flooring material, or a 30 cm square flooring material is placed at an arbitrary position on the long side of a 30 cm × 120 cm flooring material. One or two can be partially arranged or connected at an arbitrary distance.
Moreover, it is not always necessary to lay the flooring with the corners butting each other, and the adjacent flooring can be connected to each other with an arbitrary length shifted as necessary. It is possible to freely select and lay the flooring material by fitting it to a floor basement surface having a deformed shape or an obstacle such as a drainage ditch or an air conditioner outdoor unit.

  As described above, according to the connecting member according to the connecting structure of floor materials of the present invention, the expansion and contraction portions are provided between both end portions of the connecting member, and are used for connecting adjacent floor materials. Adjacent floor materials can be easily connected and released while absorbing floor material dimensional errors, side surface deformation, and unevenness of the floor base surface, and any one floor material from the laid floor surface Can be easily removed. This not only improves the cleaning and maintainability of the floor base surface, but also makes it possible to easily replace it with a new one and maintain the connection strength if the connection member is damaged.

It is a top view which shows the connection state of the flooring materials of the 1st Embodiment of this invention. It is the elements on larger scale which show the connection state in FIG. It is the elements on larger scale by the side of the back surface which shows the connection state in FIG. It is a perspective view which shows the outline of the connection member of the 1st Embodiment of this invention. It is a perspective view which shows the outline of the connection member of the 2nd Embodiment of this invention.

The best mode for carrying out the present invention will be described below with reference to FIGS.
(First embodiment)

  1 to 3 show a connection state between flooring members using the connecting member according to the first embodiment of the present invention, and FIG. 4 is a perspective view schematically showing the connecting member according to the first embodiment of the present invention. It is.

1 to 3, the flooring 2 is composed of a synthetic resin flooring body 2 a made of polypropylene and having a side of 30 cm and a decorative material 2 b made of an inorganic fired body.
As a method of fixing the decorative material 2b to the floor material body 2a, an epoxy resin adhesive (figure shown in FIG. 3) adjusted to a non-flowable viscosity in the receiving portion 2g provided on the back surface of the floor material body 2a shown in FIG. Nine decorative materials 2b are fixed to the surface of the flooring main body 2a as shown in FIG. 1 and FIG. A joint portion 2d is formed between the decorative materials 2b and 2b.

  A drainage hole 2f is provided in the joint 2d of the flooring main body 2a, and a plurality of legs 2c are provided on the back side, and a drainage space is formed between the flooring main body 2a and a floor base surface (not shown). .

On the other hand, in FIG. 4, the connecting member 1 is made of polypropylene and manufactured by injection molding.
The connecting member 1 has a long rectangular shape in plan view, and a pair of locking portions 1b and 1b are provided at both ends in the longitudinal direction of the connecting member 1 on a member (not shown) curved in an inverted U shape. .

At the tips of the pair of locking portions 1b, 1b, locking pieces 1c, 1c are provided toward the outside of the member curved in an inverted U shape, respectively, and between the pair of locking portions 1b, 1b (reverse U The curved portion of the member curved in a letter shape is provided with a slit 1d, and the two locking pieces 1c and 1c can move vertically and horizontally relative to each other. The two locking pieces 1c, 1c are gradually expanded from the tip and then contracted.
The pair of locking portions 1b, 1b having the above configuration is also provided on the other side of the connecting member 1 as a three-dimensional object.

Two locking pieces 1c, 1c provided on one side of the connecting member 1 are locked at an appropriate position of the joint portion 2d of the flooring 2, and the opposing flooring 2 are locked together. A locking hole 2e is provided.
The size of the opening of the locking hole 2e is such that the maximum bulge portion of the two locking pieces 1c, 1c (not shown) is designed to gradually bulge from the tip and then shrink. The size of the cross section at (1)) is smaller than the size of the cross section at (1)) and is the same as or larger than the size of the cross section at the reduced portion.
Further, the position at which the locking hole 2e is provided is positioned at a portion where the pair of locking pieces 1c, 1c are inserted into the locking hole 2e, and contracts after passing through the maximum bulging portion (not shown), and is at the maximum. It is preferable that the position be secured by a bulging portion (not shown).
In other words, when the pair of locking portions 1b, 1b of the connecting member 1 are inserted into the locking holes 2e of the flooring 2, the two locking pieces 1c, 1c are inserted while elastically contacting the locking holes 2e, When the insertion is completed up to the portion (not shown) that is designed to gradually bulge from the tips of the locking pieces 1c, 1c and then contract, the two locking pieces 1c, 1c are locked. The stress that was separately elastically contacted with the inner surface of the opening of the hole 2e is released, and the two locking pieces 1c and 1c are retained in the locking hole 2e at the maximum bulge portion (not shown). Made with structure.
In addition, since the lengths of the reduced portions of the pair of locking pieces 1c and 1c are the same as the lengths of the locking holes 2e, respectively, the pair of locking pieces 1c and 1c are located with respect to the locking hole 2e. Each is securely fixed without wobbling.

Between the both ends of the connecting member 1, an expansion / contraction part 1 a in which the connecting member 1 is curved in an inverted V shape is provided. The position where the stretchable portion 1a is provided is not limited as long as it is between the locking portions 1b and 1b at both ends, but in consideration of designability, compatibility, strength, productivity, handleability, etc. In the first embodiment, the connecting member 1 is provided at the center.
Since the elasticity is imparted to the connecting member 1 by the expansion / contraction part 1a, both sides of the expansion / contraction part 1a can move vertically and horizontally through the expansion / contraction part 1a.

  In addition, as shown in FIG. 2, the height of the top part of the expansion-contraction part 1a and the height of the top part of the latching | locking part 1b are made the same height, and when connecting the floor materials 2 which oppose using the connection member 1, it expands and contracts. Both the top part of the part 1a and the top part of the locking part 1b were set to a height that does not jump out to the surface of the flooring 2.

  FIG. 1 is a plan view showing a connected state in which four flooring materials 2 are connected using the connecting member 1 by the method as described above. In FIG. 1, all the joint portions 2 e (not shown) facing each other at 8 locations (2 locations in the adjacent floor materials 2) are connected by the 8 connecting members 1. Can be arbitrarily selected even if the number of connected portions is not all eight.

As described above, according to the connecting member 1 of the first embodiment, the joint portions 2e of the flooring 2 opposed to each other by the pair of locking portions 1b, 1b provided at both end portions are vertically moved via the stretchable portion 1a. Since the floor material 2 is connected so that it can be opened and closed, the dimensional error of the floor material 2 can be absorbed when the floor material 2 is laid, and the adjacent floor materials 2 can be connected to each other while absorbing the unevenness of the floor ground surface. It can be easily and reliably connected, and no skill is required for the connection work.
Moreover, the thermal expansion / contraction which generate | occur | produces in the flooring 2 after laying the flooring 2 can be absorbed effectively, and the flooring 2 and the connection member 1 are not damaged.
Furthermore, even if the connecting member 1 is damaged, only the damaged connecting member 1 can be easily replaced with a new one, and the connection strength between the flooring materials 2 can be maintained.
(Second Embodiment)

  FIG. 5 is a perspective view showing an outline of a connecting member according to the second embodiment of the present invention.

The connecting member 1 ′ of the second embodiment is used for connecting the flooring materials 2 shown in the first embodiment.
The connecting member 1 ′ is made of polypropylene and manufactured by injection molding, similarly to the connecting member 1 shown in the first embodiment.
The connecting member 1 ′ is provided with a pair of locking portions 1b ′ and 1b ′ that are the same as the pair of locking portions 1b and 1b of the first embodiment at both ends.

The total length and size of the connecting member 1 'are the same as the connecting member 1, but the connecting member 1' is divided into two pieces at both ends, and is separately molded by a bellows tube made of polypropylene. It is configured as a single unit. That is, the expansion / contraction part 1a 'by the said bellows tube is comprised between the both ends of connection member 1'. In the case of the second embodiment, the bellows tube is fixed by adhesion, but may be fixed by a hose band or a binding band.

Thus, also in the connecting member 1 ′ according to the second embodiment, the pair of locking portions 1b ′ and 1b ′ provided at both ends can be opened and closed with each other via the extendable portion 1a ′. As in the first embodiment, when flooring 2 is laid, adjacent flooring can absorb the dimensional error of flooring 2 and absorb unevenness of the floor ground surface. The two can be easily and reliably connected, and no skill is required for the connection work.
Moreover, after the flooring 2 is laid, the thermal expansion and contraction generated in the flooring 2 can be effectively absorbed, and the flooring 2 and the connecting member 1 ′ are not damaged.

1, 1 'connecting member 1a, 1a' expansion / contraction part 1b, 1b 'locking part 1c, 1c' locking piece 1d, 1d 'slit 2 flooring 2a flooring body 2b decorative material 2c leg 2d joint 2e locking hole 2f Drain hole 2g receiving part

Claims (1)

A flooring connecting structure for connecting adjacent rectangular flooring materials,
The floor materials are connected by a connecting member,
Locking portions for connecting floor materials to each other are provided at both ends of the connecting member, stretchable portions are provided between the both end portions , and rectangular floor materials provided with adjacent joint portions are, coupling structure floor material, characterized in Rukoto connected by joints facing each other by the connecting member.

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