JP2016108834A - Floor material - Google Patents

Abstract

The present invention relates to a floor material laid vertically and horizontally on a floor surface, and an assembling type floor material capable of detachably connecting adjacent floor materials to each other. A connecting projection is inserted into and locked in a connecting hole between rectangular disk-shaped floor members, and the connecting projection (13) includes a shaft portion (13a) and a retaining portion at the tip of the shaft portion. (13b), the connecting hole (14) includes a holding hole (14a) that allows the shaft portion to pass therethrough and engages with the retaining portion, and when the one floor material is lifted from the floor surface, An introduction hole portion that allows the stop portion and the shaft portion to be removably inserted, and a communication path that allows the shaft portion to move from the introduction hole portion toward the holding hole portion are formed, and the connection hole (14 ) Are introduced into a central introduction hole portion (14b) that is displaced in the vertical direction with respect to the holding hole portion (14a), and left and right introduction hole portions (14c) that are laterally separated from the central introduction hole portion. ) (14d). [Selection] Figure 1

Description

The present invention relates to a floor material laid vertically and horizontally on a floor surface, and more particularly to an assembly-type floor material that allows adjacent floor materials to be detachably connected to each other.

For example, in a factory or the like where various mechanical devices are installed, a raised floor type work floor is constructed in the work space of an operator who operates the mechanical device. Further, in an office or the like, a raised floor type floor may be constructed on an existing floor surface for the purpose of electrical wiring or the like.

Such a floor is assembled by laying a rectangular disk-like floor material vertically and horizontally on an existing floor surface and connecting adjacent floor materials to each other.

JP 2013-163953 A

Floors constructed by laying floor materials vertically and horizontally are integrated as a whole by connecting adjacent floor materials. At this time, it is desirable to configure so that the connection can be performed simultaneously with the laying operation.

As shown in Patent Document 1, the connecting means for floor material is generally provided with vertical grooves and vertical ribs that can be fitted to each other on the side portions of adjacent floor materials and laid in advance. The vertical groove and the vertical rib are fitted to each other while the floor material to be laid down is moved downward with respect to the floor material.

However, the connecting means constituted by the vertical grooves and the vertical ribs can be easily implemented when the floor material is made of plastic, but is difficult to implement when the floor material is made of metal.

In this regard, since the working floor in the factory or the like as described above needs to withstand severe use conditions, it is preferable that the floor material is made of metal and the connecting means is made of metal.

Therefore, the present inventor considers that it is desirable to configure the connecting means by providing connecting protrusions and connecting holes that can be inserted and locked to each other on the side portions of the adjacent floor materials, and as described below, the comparison is made. The present invention has been achieved by finding that Example 1 (FIGS. 14 and 15) and Comparative Example 2 (FIGS. 16 and 17) include the following problems and solving them.

(Comparative Example 1)
The comparative example 1 shown in FIG. 14 is related to the X axis parallel to one side part and the Y axis parallel to the other side part of the side parts intersecting each other of the rectangular disk-shaped floor material 1. A pair of side protrusions 2x, 2x facing each other on the X axis are provided with a connecting projection 3 protruding from the side edge, and a pair of side edges 2y, 2y facing each other on the Y axis are provided with a connecting hole 4. . At this time, in order to enable stable and strong connection, a plurality (two) of connection protrusions 3 and 3 are provided on each of the pair of side portions 2x and 2x, and a plurality of connection projections 3 and 2 are provided on each of the pair of side portions 2y and 2y. (Two) connecting holes 4 and 4 are provided.

As shown in FIG. 15, the connecting projection 3 includes a shaft portion 3a and a retaining portion 3b including a head having a large diameter at the tip of the shaft portion. The connecting hole 4 is formed by a so-called dharma hole, and is inserted through the shaft portion 3a and locked to the retaining portion 3b. The retaining hole 4a is located above the retaining hole portion 4a and is retained. An introduction hole 4b is provided for removably inserting the portion 3b and the shaft 3a, and the introduction hole 4b and the holding hole 4a are communicated with each other.

Accordingly, when the side portions 2x and 2y of the adjacent floor materials 1 and 1 are faced to each other, the connecting protrusion 3 is inserted into the introduction hole 4b of the connecting hole 4, and the connecting protrusion 3 is lowered, the connecting protrusion 3 When the three shaft portions 3a move to the holding hole portions 4a and engage the retaining portions 3b, the side portions 2x and 2y can be connected to each other in an inseparable manner.

However, when the floor material 1 is laid while being connected in order, the floor material 1 (shown by reference numerals 1a, 1b, and 1c) laid in advance is arranged in an L shape as shown in FIG. There is a case where a corner portion is left. In this case, the floor material 1 (denoted by reference numeral 1d) to be laid down behind the corner portion has to be arranged in a joined state, but raises a problem that it cannot be arranged and connected. .

Of the pair of floor materials 1a and 1c forming the corner portion, one floor material 1a has the connection holes 4 and 4 facing the corner portion, and the other floor material 1c has the connection protrusions 3 and 3 at the corner portion. I ’m here. Accordingly, the floor material 1d to be laid downstream is the connection protrusions 3 and 3 on the side part 2x and the connection holes 4 and 4 on the side part 2y, respectively, and the connection holes 4 and 4 on the floor material 1a and the floor material, respectively. It must be inserted and locked to the connecting projections 3 and 3 of 1c.

However, the connecting projections 3 and 3 that face the corner portion protrude as shown by the symbol P, and interfere with the side portions 2x and 2y to be joined of the floor material 1d that is laid downstream, so that the floor material 1d cannot be moved so as to be joined to the corner portion. Therefore, since the connection projection 3 and the introduction hole portion 4b of the connection hole 4 cannot be arranged on the same axis, the connection projection 3, 3 and the connection hole 4, 4 cannot be inserted and locked. .

For this reason, when constructing a plurality of floor materials 1 in order while inserting and locking the connection protrusions 3 and the connection holes 4 when constructing a floor having a predetermined area, the floor material previously laid is L as described above. When a corner portion having a shape is generated, there is a problem in that a floor material to be laid down behind the corner portion cannot be connected in a connected state.

(Comparative Example 2)
The comparative example 2 shown in FIG. 16 is related to the X axis parallel to one side part and the Y axis parallel to the other side part of the side parts intersecting each other of the rectangular disk-shaped floor material 1. A pair of side projections 2x and 2x facing each other on the X axis are provided with a connection projection 3 and a connection hole 4, respectively. A pair of side projections 2y and 2y facing each other on the Y axis are respectively provided with a connection projection 3 and a connection hole 4. Provided. At this time, in order to enable stable and strong connection, a plurality (two) of connection protrusions 3 and 3 and a plurality (two) of connection holes 4 and 4 are provided in the respective side portions 2x and 2y. . Although not shown, the connection protrusion 3 and the connection hole 4 are formed in the same manner as in the above-described comparative example 1. The connection protrusion 3 includes a shaft portion and a retaining portion, and the connection hole 4 includes a holding hole portion. An introduction hole is provided.

In Comparative Example 2, similarly to Comparative Example 1, when laying while sequentially connecting a plurality of floor materials 1, as shown in FIG. 16B, the floor material 1 (reference numerals 1a, 1b, 1b, 1c) is arranged in an L shape, and a corner portion may be left inside. Therefore, a floor material 1 (denoted by reference numeral 1d) to be laid down on the corner portion is arranged in a joined state. Need arises.

Under the present circumstances, according to the comparative example 2, as for a pair of floor materials 1a and 1c which form a corner part, all have the connection holes 4 and 4 face a corner part (this point differs from the comparative example 1). Accordingly, the floor material 1d to be laid downstream is connected to the connection projections 3 and 3 and the side edge 2y of the side edge 2x of the floor material 1d with respect to the connection holes 4 and 4 of the floor material 1a and 1b. If the connection protrusions 3 and 3 are not inserted and locked, they cannot be connected.

However, the floor material 1d to be laid downstream is projected from the pair of side portions 2x and 2y facing the corner portion, as shown by the symbol P, and is laid in advance. Therefore, the floor material 1d cannot be moved so as to be joined to the corner portion. Therefore, the connection protrusion 3 and the introduction hole portion 4b of the connection hole 4 cannot be arranged coaxially with each other. As a result, the connection protrusions 3 and 3 and the connection holes 4 and 4 cannot be inserted and locked. It is.

For this reason, when constructing a plurality of floor materials 1 in order while inserting and locking the connection protrusions 3 and the connection holes 4 when constructing a floor having a predetermined area, the floor material previously laid is L as described above. When a corner portion having a shape is generated, there is a problem in that a floor material to be laid down behind the corner portion cannot be connected in a connected state.

In this regard, in the case of Comparative Example 2, as shown in FIG. 17, the side portions extending in the row direction by connecting the floor materials (indicated by reference numerals 1 e and 1 f) laid in advance in a single row state. The connection holes 4 are arranged in a row, and floor units (indicated by reference numerals 1g and 1h) to be laid downstream are connected in advance so as to be in the same one-row state to form a unit U, If the connecting protrusions 3 are arranged in a row on the side portions extending in the direction of arrangement of the units U, the connecting protrusions 3 of the unit U are inserted into the connecting holes 4 of the floor members 1e and 1f previously laid. It is possible to stop.

However, in the floor construction site, the requirement for the unit U in advance not only deteriorates the workability, but also has the problem of forcing a heavy work to lift the heavy unit U. When the floor materials 1g and 1he are refracted, there is a problem that the connecting protrusion 3 is broken.

(Task)
The present invention is configured so that a floor having a predetermined area can be easily and easily constructed by laying a plurality of floor materials in order while inserting and locking the connection protrusion and the connection hole. Even when the floor material is arranged in an L shape and the corner portion is left inside, the floor material to be laid downstream from the corner portion is arranged in a joined state, and the connection protrusion and the connection hole are arranged. It is an object of the present invention to provide a floor material that can be suitably inserted and locked.

Therefore, the present invention is configured as a means is a rectangular disk-like floor material laid vertically and horizontally on the floor surface, provided with a connection protrusion and a connection hole on the side portions facing each other of the adjacent floor material, The connection protrusion is configured to be inserted and locked into the connection hole. The connection protrusion includes a shaft portion and a retaining portion that projects outward from the tip of the shaft portion, and the connection holes are adjacent to each other. When the floor material is grounded to the floor surface, the shaft portion is inserted and the holding hole portion to be locked to the retaining portion, and when the one floor material is lifted from the floor surface, the retaining portion and the shaft portion are inserted and removed. An introduction hole portion to be freely inserted and a communication path that allows the shaft portion to move from the introduction hole portion toward the holding hole portion are formed, and the introduction hole portion of the connection hole is formed by the holding hole portion. With respect to the center introduction hole portion displaced in the vertical direction and in the lateral direction of the center introduction hole portion. It lies in comprising constituted by left and right introduction hole for between.

Preferably, the separation distances L and R of the left and right introduction hole portions laterally separated from the holding hole portion with respect to the protrusion length P of the connecting protrusion protruding from the side portion of the floor material are L ≧ P, respectively. And R ≧ P.

In a preferred embodiment of the present invention, the X-axis parallel to one side portion and the Y-axis parallel to the other side portion of the side portions intersecting each other of the rectangular disk-like floor material are arranged in the X direction. Among the pair of side parts facing each other on the shaft, a plurality of connection protrusions are provided on one side part, a plurality of connection holes are provided on the other side part, and the connection protrusions provided on both side parts are provided. The shaft part and the holding hole part of the connection hole are arranged coaxially with each other, and a plurality of connection protrusions are provided on one side part of the pair of side parts opposed to each other on the Y axis, and the other side A plurality of connecting holes are provided in the side portions, and the shaft portions of the connecting protrusions provided on both side portions and the holding hole portions of the connecting holes are arranged coaxially with each other.

When disassembling the laid floor material, it is preferable to hold the connecting protrusion released from the holding hole in a state where it can be easily pulled out with the connecting protrusion facing the introduction hole portion. It has been.

In the first embodiment of the holding means, the retaining portion of the connecting protrusion is constituted by a flange extending from the entire circumference of the tip of the shaft portion, and the introducing hole portion of the connecting hole is the above-mentioned upper and lower edge portions of the hole. A movement restricting means is provided on the edge opposite to the holding hole, and with the connecting protrusion inserted through the connecting hole, one floor member is lifted with respect to the other floor member, thereby When the shaft portion faces the introduction hole portion, the flange comes into contact with the movement restricting means, so that the retaining portion is held at a position where it can be removed from the introduction hole portion.

In the first embodiment of the holding means, the retaining portion of the connecting protrusion is constituted by a protruding piece protruding from a portion facing the holding hole portion among the upper and lower portions of the tip of the shaft portion. An extension portion of the shaft portion is formed on the opposite side, and the introduction hole portion of the connection hole is provided with a movement restricting means at an edge portion facing the extension portion of the shaft portion, of the upper and lower edge portions of the hole, When the connecting projection is inserted into the connecting hole, when the shaft portion of the connecting projection faces the introduction hole portion by lifting one floor material with respect to the other floor material, the extension portion of the shaft portion is By making contact with the movement restricting means, the retaining portion is configured to be held at a position where it can be removed from the introduction hole portion.

1st Embodiment of this invention is the side part which provided the connection protrusion of the floor material laid down behind with respect to the side part which provided the connection hole of the floor material previously laid in the floor surface. Are connected to each other in a joined state, and the connection hole is arranged above the holding hole portion coaxial with the shaft portion of the connection protrusion, and the introduction hole portion is disposed upwardly through a separation distance H1. Then, the connecting projection is lifted corresponding to the separation distance H1 together with the floor material to be laid downstream, so that the connecting projection is inserted into the introduction hole portion and lowered to correspond to the separation distance H1. The connection protrusion is moved toward the holding hole by being grounded.

In the second embodiment of the present invention, the side portion provided with a floor material connecting hole to be laid downstream is provided with respect to the side portion provided with the connecting projection of the floor material previously laid on the floor surface. Are connected to each other in a joined state, and the connection hole is arranged with a distance H2 below the introduction hole portion with respect to the holding hole portion coaxial with the shaft portion of the connection protrusion. Then, the connecting hole is lifted corresponding to the separation distance H2 together with the floor material to be laid down, so that the connection protrusion is inserted into the introduction hole portion, and the floor is lowered corresponding to the separation distance H2. The holding hole portion is configured to move toward the connecting projection by being grounded.

According to the present invention, it is possible to construct a floor having a predetermined area by laying a plurality of floor materials 11 in order while inserting and locking the connection protrusion 13 and the connection hole 14 to each other. It becomes easy.

At this time, if the floor materials are laid together one by one in sequence, the fixed floor material laid in advance may be arranged in an L shape, leaving a corner portion on the inside. Therefore, it is necessary to place and connect the newly installed floor material to be laid down in a joined state, and the floor material of the present invention suitably connects the newly installed floor material to the corner portion. It becomes possible to do.

1 shows an embodiment of the present invention, where (A) is a perspective view showing an upper surface, and (B) is a perspective view showing a lower surface. BRIEF DESCRIPTION OF THE DRAWINGS The 1st Embodiment regarding the connection protrusion and connection hole of this invention is shown, (A) is sectional drawing which shows a floor material in the fracture | rupture state, (B) is followed to the connection hole of the floor material laid ahead. Sectional drawing which shows the method of inserting the connection protrusion of the floor material laid down, (C) is sectional drawing which shows the state which inserted and latched the connection protrusion in the connection hole. The method of inserting and engaging the connection protrusion in the connection hole with respect to the first embodiment is shown. (A) is an explanatory view showing the connection method of moving the connection protrusion from the central introduction hole portion to the holding hole portion, and (B). FIG. 6C is an explanatory view showing a connecting method for moving the connecting protrusion from the left introducing hole to the holding hole, and FIG. 8C is an explanatory view showing a connecting method for moving the connecting protrusion from the right introducing hole to the holding hole. 1A shows a first connection method for connecting a floor material to be laid down in a joined state to a corner portion of a floor material laid in advance with respect to the first embodiment, and FIG. The top view which shows the moving direction of material, (B) is explanatory drawing which shows the relationship between the connection protrusion and insertion hole which are inserted and locked previously, (B) is the relationship between the connection protrusion and connection hole which is inserted and locked later. It is explanatory drawing shown. The 2nd connection method for connecting the floor material laid down behind and connected to the corner part of the floor material laid in advance about the 1st embodiment is shown, and (A) is a floor. The top view which shows the moving direction of material, (B) is explanatory drawing which shows the relationship between the connection protrusion and insertion hole which are inserted and locked previously, (B) is the relationship between the connection protrusion and connection hole which is inserted and locked later. It is explanatory drawing shown. It is a perspective view which shows 1st Example of the holding means which hold | maintains in the attitude | position which is easy to pull out in the state which faced the connection protrusion to the introduction hole part. The operation of the first embodiment of the holding means is shown, (A) is a cross-sectional view showing a state in which the connecting projection is retained in the holding hole, and (B) is a state in which the connecting projection faces the introduction hole. (C) is explanatory drawing which shows the relationship between a connection protrusion and a movement control means. It is a perspective view which shows 2nd Example of the holding means which hold | maintains the attitude | position which is easy to pull out in the state which faced the connection protrusion to the introduction hole part. The operation of the second embodiment of the holding means is shown, (A) is a cross-sectional view showing a state in which the connecting projection is retained and locked in the holding hole, and (B) is a state in which the connecting projection faces the introduction hole. (C) is explanatory drawing which shows the relationship between a connection protrusion and a movement control means. It is a perspective view which shows the deformation | transformation embodiment of the floor material which concerns on 1st Embodiment. The 2nd Embodiment regarding the connection protrusion and connection hole of this invention is shown, (A) is sectional drawing which shows a floor material in a fracture | rupture state, (B) is followed to the connection hole of the floor material laid in advance. Sectional drawing which shows the method of inserting the connection protrusion of the floor material laid down, (C) is sectional drawing which shows the state which inserted and latched the connection protrusion in the connection hole. The method to insert and engage a connection protrusion in the connection hole concerning 2nd Embodiment is shown, (A) is explanatory drawing which shows the connection method which moves a connection hole from a center introduction hole part to a holding hole part with respect to a connection protrusion. (B) is explanatory drawing which shows the connection method which moves a connection hole from a left introduction hole part to a holding hole part with respect to a connection protrusion, (C) is a holding hole from a right introduction hole part with respect to a connection protrusion. It is explanatory drawing which shows the connection method moved to a part. Regarding the second embodiment, a method for connecting the floor material to be laid downstream and joined to the corner portion of the floor material laid in advance is shown, and (A) shows the movement of the floor material. A plan view showing the direction, (B) is an explanatory view showing the relationship between the connecting hole inserted and locked first and the connecting protrusion, (B) is an explanatory diagram showing the relationship between the connecting hole inserted and locked later and the connecting protrusion It is. The comparative example 1 with respect to this invention is shown, (A) is a perspective view of a floor material, (B) is a state where the floor material to be laid downstream is joined to the corner portion of the floor material previously laid. It is a top view which shows the state which cannot be connected by. It is a perspective view which shows the state which cannot insert and lock the connection protrusion and connection hole in a corner part regarding the comparative example 1. FIG. The comparative example 2 with respect to this invention is shown, (A) is a perspective view of a floor material, (B) is a state where the floor material to be laid downstream is joined to the corner portion of the floor material previously laid. It is a top view which shows the state which cannot be connected by. It is a top view explaining that it is necessary to form a unit beforehand, in order to insert and lock a connection projection in a connection hole when laying a floor material, regarding Comparative Example 2.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the floor material 11 is formed in a rectangular disk shape as a whole, and among the side parts intersecting each other of the floor material 11, the X axis parallel to one side part and the other With respect to the Y axis parallel to the side portions of the first side, a pair of side side portions 12x, 12x facing each other on the X axis are provided with a connecting projection 13 and a connecting hole 14, respectively, and a pair of side side portions 12y, facing each other on the Y axis, 12y is provided with a connecting projection 13 and a connecting hole 14, respectively.

The connection protrusion 13 and the connection hole 14 may be provided at least one on each side portion. However, in order to achieve stable and strong connection, a plurality (two) of the connection projections 13 and the connection holes 14 are provided in each of the side portions 12x and 12y. The connection protrusions 13 and 13 and a plurality (two) of connection holes 14 and 14 are preferably provided. At this time, the positions and intervals of the plurality of connecting projections 13 and 13 and the connecting holes 14 and 14 are laid vertically and horizontally by joining the plurality of floor members 1 to each other at the side portions as shown in FIG. In this case, the connection protrusions 13 provided on one side part joined to each other are set so as to be inserted and locked into the connection holes 14 provided on the other side part.

The floor material 11 is formed of a metal material having an L-shaped cross section in a rectangular shape to form the side portions 12x and 12y by the side wall portion 15a of the metal material, and the upper wall portion 15b is made of metal. The top plate 16 is mounted and fixed, thereby forming a disk shape. As shown in FIG. 1 (A), the top plate 16 is preferably constituted by a so-called striped plate provided with a slip stopper.

Seat means 17 projecting downward are provided at the four corners of the frame, and the vertical position of the seat means 17 can be adjusted by an adjusting means comprising a bolt shaft and a nut as shown. Has been. Accordingly, when the floor material 11 is laid on the floor surface, the adjustment means adjusts the vertical position of the seat means 17 to absorb the unevenness of the floor surface, and the top plate 16 of the adjacent floor material 11 is the same. Aligned to be flat, this creates a raised floor.

As shown in FIG. 2 (A), the connecting projection 13 is formed by a headed bolt inserted into the side wall 15a of the metal material formed with the frame, and a nut 18 is screwed from the inside of the side wall 15a. A shaft portion 13a that is fixed by wearing and protrudes to the outside of the side wall portion 15a, and a retaining portion 13b that protrudes outward (outer circumferential direction) from the tip of the shaft portion 13a are provided. The protrusion length P is formed by the distance from the outer surface to the tip of the retaining portion 13b. In the case of the illustrated embodiment, the retaining portion 13b is constituted by a head having a large diameter of a headed bolt, and the shaft portion 13a is constituted by a neck portion of the bolt, but is not limited thereto. Instead, for example, the retaining portion 13b may be formed by bending the tip of the shaft portion into a hook shape, or may be formed by a protruding piece as shown in FIG.

The connecting hole 14 extends through the side wall portion 15a of the metal material formed with the frame, and a holding hole portion through which the shaft portion 13a of the connecting protrusion 13 is inserted but the retaining portion 13b is locked so as not to be inserted and removed. 14a, a central introduction hole 14b disposed above the holding hole 14a, a left introduction hole 14c and a right introduction hole 14d disposed on the left and right of the central introduction hole 14b, The central introduction hole portion 14b and the left and right introduction hole portions 14c and 14d are formed to have a size that allows the retaining portion 13b to be inserted and removed together with the shaft portion 13a of the connection protrusion 13. A communication passage is formed between the central introduction hole portion 14b, the left and right introduction hole portions 14c and 14d, and the holding hole portion 14a so that the shaft portion 13a can move therebetween.

The shaft portion 13a of the connecting projection 13 and the holding hole portion 14a of the connecting hole 14 are arranged as shown by an axis C when the side wall portion 15a of the adjacent floor material 11 is joined by laying the floor material 11. Are arranged so as to be located on the same axis. Accordingly, in this joined state, the shaft portion 13a of the connecting projection 13 provided on one side wall portion 15a is held by the holding hole portion 14a of the connecting hole 14 provided on the other side wall portion 15a, and the retaining portion 13b is held by the holding hole. Locks to the portion 14a.

The central introduction hole portion 14b and the left and right introduction hole portions 14c and 14d are disposed with a separation distance H1 above the holding hole portion 14a, and are introduced to the left and right laterally away from the central introduction hole portion 14b. The separation distances L and R of the holes 14c and 14d are formed such that L ≧ P and R ≧ P with respect to the protruding length P of the connecting protrusion 13, respectively.

According to said structure, with respect to the fixed floor material (it shows with the code | symbol 11a) laid in advance on the floor F, the new floor material (it shows with the code | symbol 11d) which should be laid down behind is joined. In the case of connection, as shown in FIG. 2B, when the new floor member 11d is lifted corresponding to the separation distance H1, the connection protrusion 13 of the floor member 11d is introduced into the connection hole 14 in the fixed floor member 11a. Since it faces the portions (14b, 14c, 14d), the retaining portion 13b and the shaft portion 13a of the connecting protrusion 13 are introduced by moving the newly installed floor member 11d toward the fixed floor member 11a as shown by the chain line in the figure. It can be inserted into the hole.

Therefore, when the connecting protrusion 13 is lowered from the state where the connecting protrusion 13 is inserted into the introduction hole until the newly installed floor material 11d is grounded to the floor surface F as shown in FIG. 2C, the connecting protrusion 13 holds the shaft portion 13a. By moving to the hole portion 14a, the retaining portion 13b is locked to the holding hole portion 14a, thereby connecting the both floor materials 11d and 11a inseparably.

FIG. 3 shows the operation of the central introduction hole portion 14b and the left and right introduction hole portions 14c and 14d constituting the introduction hole portion.

FIG. 3 (A) shows a case where the side wall 15a of the new floor material 11d is joined to the side wall 15a of the fixed floor material 11a in a state where the new floor material 11d faces from the front. The effect | action when joining by attitude | position is shown. In this case, as described above, when the newly-installed floor member 11d is lifted corresponding to the separation distance H1, the connection protrusion 13 can face the central introduction hole portion 14b of the connection hole 14 and can be inserted. When the new floor member 11d is lowered in the inserted state, the shaft portion 13a moves to the holding hole portion 14a, and the retaining portion 13b is locked to the holding hole portion 14a.

FIG. 3B shows a case where the side wall 15a of the fixed floor member 11a is joined in a posture in which the side wall 15a of the newly installed floor member 11d is displaced to the left side. In this case, when the new floor member 11 d is lifted corresponding to the separation distance H 1, the connection protrusion 13 can face and be inserted into the left introduction hole portion 14 c of the connection hole 14. In the inserted state, the connecting protrusion 13 is moved together with the new floor member 11d in the right direction as shown by the arrow M1, and then the new floor member 11d is lowered. Then, the shaft portion 13a moves to the holding hole portion 14a and is removed. The stopper 13b is locked in the holding hole 14a.

FIG. 3C shows a case where the side wall 15a of the fixed floor member 11a is joined in a posture in which the side wall 15a of the new floor member 11d is displaced to the right. In this case, when the new floor member 11 d is lifted corresponding to the separation distance H 1, the connection protrusion 13 can face and be inserted into the right introduction hole portion 14 d of the connection hole 14. In the inserted state, the connecting projection 13 is moved to the left as indicated by the arrow M2 together with the new floor material 11d, and then the new floor material 11d is lowered. Then, the shaft portion 13a moves to the holding hole portion 14a and is removed. The stopper 13b is locked in the holding hole 14a.

As a result of the above configuration, it is possible to construct a floor with a predetermined area by laying a plurality of floor materials 11 in order while inserting and locking the connection protrusions 13 and the connection holes 14. Easy.

As shown in FIG. 4 (A), when the floor materials 11 are laid together one by one in sequence, the fixed floor material 11 (first fixed floor material 11a, second fixed floor material 11b, third, The fixed floor material 11c is arranged in an L shape and may cause a state in which a corner portion is left inside, and a new floor material 11 (reference number) that is laid downstream from the corner portion. 11d) must be arranged and connected in a joined state. In this case, the newly installed floor material 11d can be joined and connected by the following first connection method or second connection method.

(First connection method)
FIG. 4 shows a first connection method in which the side portion 12x of the illustrated new floor member 11d is first joined and connected to the side portion 12x of the first fixed floor member 11a. In the case of this method, when the newly installed floor member 11d is opposed to the first fixed floor member 11a in a posture shifted to the left side and lifted up, as shown by a chain line in FIG. Between 12x and 12x, the connection protrusion 13 (indicated by reference numeral 13x) can face the left introduction hole 14c of the connection hole 14 (indicated by reference numeral 14x). At this time, the connecting projection protrudes from the other side portion 12y of the newly-installed flooring material 11d as indicated by the symbol P. However, since the above-described L ≧ P is established, the connecting projection is No interference with the three fixed floor members 11c.

Therefore, when the newly installed floor member 11d is moved toward the first fixed floor member 11a as indicated by the arrow Q1, the connection protrusion 13x is inserted into the left introduction hole portion 14c of the connection hole 14x. Due to the movement indicated by the arrow Q1, between the newly-installed floor material 11d and the third fixed floor material 11c, as shown by a chain line in FIG. It faces the central introduction hole 14b (indicated by reference numeral 14y) and is ready for insertion.

Subsequently, when the new floor material 11d is moved toward the third fixed floor material 11c as shown by the arrow Q2, the arrow M1 in FIG. 4B is interposed between the new floor material 11d and the first fixed floor material 11a. As shown, the connecting projection 13x moves to the central introduction hole 14b of the connecting hole 14x. At the same time, between the new floor material 11d and the third fixed floor material 11c, the connection protrusion 13y is inserted into the central introduction hole portion 14b of the connection hole 14y.

Therefore, after that, when the newly installed floor member 11d is lowered and brought into contact with the floor surface, the connecting projection 13x moves toward the holding hole portion 14a of the connecting hole 14x between the newly installed floor member 11d and the first fixed floor member 11a. At the same time as being inserted and locked, the connecting protrusion 13y is inserted and locked by moving toward the holding hole portion 14a of the connecting hole 14y between the newly installed floor member 11d and the third fixed floor member 11c. .

(Second connection method)
FIG. 5 shows a second connection method in which the side portion 12y of the newly-installed floor member 11d shown in the figure is first joined and connected to the side portion 12y of the third fixed floor member 11c. In the case of this method, when the newly installed floor member 11d is opposed to the third fixed floor member 11c in a posture shifted to the right side and lifted, as shown by a chain line in FIG. Between 12y and 12y, the connection protrusion 13 (indicated by reference numeral 13y) can face the right introduction hole 14d of the connection hole 14 (indicated by reference numeral 14y). At this time, a connecting projection protrudes from the other side portion 12x of the newly-installed floor member 11d as indicated by the symbol P. However, since it is configured such that L ≧ P, the connecting projection is There is no interference with the 1 fixed floor material 11a.

Therefore, when the newly installed floor member 11d is moved toward the third fixed floor member 11c as indicated by the arrow Q1, the connection protrusion 13y is inserted into the left introduction hole portion 14d of the connection hole 14y. Due to the movement indicated by the arrow Q1, between the new floor material 11d and the first fixed floor material 11a, as shown by the chain line in FIG. 5C, the connection protrusion 13 (indicated by reference numeral 13x) is connected to the connection hole 14 ( It faces the central introduction hole 14b (indicated by reference numeral 14x) and is ready for insertion.

Subsequently, when the new floor material 11d is moved toward the first fixed floor material 11a as indicated by the arrow Q2, the arrow M2 in FIG. 5B is interposed between the new floor material 11d and the third fixed floor material 11c. As shown, the connecting projection 13y moves to the central introduction hole 14b of the connecting hole 14y. At the same time, the new floor member 11d and the first fixed floor member 11a are inserted into the central introduction hole 14b of the connection protrusion 13yx connection hole 14x.

Therefore, after that, when the newly installed floor member 11d is lowered and brought into contact with the floor surface, the connecting projection 13y moves toward the holding hole portion 14a of the connecting hole 14y between the newly installed floor member 11d and the third fixed floor member 11c. At the same time as being inserted and locked, the connecting protrusion 13x is inserted and locked by moving toward the holding hole portion 14a of the connecting hole 14x between the newly installed floor member 11d and the first fixed floor member 11a. .

In the case of the illustrated embodiment, the floor constructed by laying the floor material 11 can be dismantled by removing them one by one by the reverse method.

In the case of the illustrated embodiment in which the connecting protrusion 13 is configured by a bolt with a head as described above, the shaft portion 13a of the connecting protrusion 13 is allowed to escape from the holding hole 14a and the introduction hole in order to disassemble the floor material 11 laid. When the axial center of the shaft portion 13a is displaced from the center of the introduction hole portion when facing the portions 14b, 14c, 14d, the retaining portion 13b is the edge of the introduction hole portions 14b, 14c, 14d. There is a possibility that the connection projection 13 is prevented from being pulled out. In this case, the operator must position the shaft center of the connecting protrusion 13 and the centers of the introduction holes 14b, 14c, and 14d while lifting the floor material 11, and the operation is not easy. For this reason, it is preferable to provide a holding means for automatically holding the connecting protrusion 13 in the posture of being easily pulled out when facing the introduction hole.

(First embodiment of holding means)
6 and 7 show a first embodiment of the holding means. The connecting projection 13 is constituted by a headed bolt or a headed pin as described above, and a retaining portion 13b is formed by a flange 18 extending from the entire circumference of the tip of the shaft portion 13a.

On the other hand, the introduction hole portions 14b, 14c, 14d of the connection hole 14 face the edge portion on the opposite side of the holding hole portion 14a among the upper and lower edge portions of the hole, and respectively inward from the side wall portion 15a. Protruding movement restricting means 19b, 19c, 19d are provided.

At this time, the protruding length Pa of the shaft portion 13a of the connecting projection 13 protruding outward from the side wall portion 15a of the floor material 11 (floor material 11d to be disassembled) (between the surfaces of the side wall portion 15a and the flange 18 facing each other). The thickness T of the side wall 15a of the floor material 11 (fixed side floor material 11a) and the protruding length V of the movement restricting means 19b, 19c, 19d are V + T> Pa. It is preferable to configure.

Further, as shown in the figure, it is preferable that the movement restricting means 19b, 19c, 19d have a concave surface that holds a part of the peripheral surface of the flange 18.

Therefore, as shown in FIG. 7A, in order to disassemble the floor members 11a and 11d connected in a joined state, the connecting protrusion 13 is caused to escape from the holding hole 14a by lifting one floor member 11d, and the introduction hole When moving toward any one of the portions 14b, 14c, and 14d, as shown in FIG. 7B, the flange 18 of the connecting protrusion 13 comes into contact with the movement restricting means 19b, 19c, and 19d.

Due to this contact, as shown in FIG. 7C, the connection protrusion 13 is held in a state where the axis is aligned with the centers of the introduction holes 14b, 14c, and 14d. In other words, if the connecting protrusion 13 is moved in the axial direction from this state, the flange 18 (prevention portion 13b) is not caught by the edge portions of the introduction holes 14b, 14c, and 14d, and is held at a position where it can be extracted. ing.

In order to extract the connecting protrusion 13 from the connecting hole 14, when the floor member 11d is moved in the lateral direction while being lifted, if the concave surfaces are formed on the movement restricting means 19b, 19c, 19d as described above, the flange 18 Since a part of the peripheral surface of the moving member moves over the concave surface, it can be easily confirmed whether or not the connecting projection 13 is in contact with the desired movement restricting means 19b, 19c, 19d by the operator's tactile sensation.

(Second embodiment of holding means)
8 and 9 show a second embodiment of the holding means. The retaining portion 13b of the connecting projection 13 is constituted by a projecting piece 20 protruding from a portion facing the holding hole portion 14a among the upper and lower portions of the tip of the shaft portion 13a. Forms an extension 21 of the shaft 13a.

On the other hand, the introduction hole portions 14b, 14c, 14d of the connecting hole 14 have the movement restricting means 19b, 19c, 19d by the edge portion facing the extension portion 21 of the shaft portion 13a among the upper and lower edge portions of the hole. Forming. At this time, it is preferable that the movement restricting means 19 b, 19 c, 19 d include a concave surface that holds a part of the peripheral surface of the extension portion 21.

Therefore, as shown in FIG. 9A, in order to disassemble the floor materials 11a and 11d connected in a joined state, the connection protrusion 13 is caused to escape from the holding hole 14a by lifting one floor material 11d, and the introduction hole When moving toward any one of the portions 14b, 14c, and 14d, as shown in FIG. 9B, the extension portion 21 of the connecting projection 13 comes into contact with the movement restricting means 19b, 19c, and 19d.

With this contact, as shown in FIG. 9C, if the connecting projection 13 moves in the axial direction, the projecting piece 20 (prevention portion 13b) is caught by the edge of the introduction holes 14b, 14c, and 14d. There is nothing, and it is held at a position where it can be extracted.

In order to extract the connecting projection 13 from the connecting hole 14, when the floor member 11d is moved in the lateral direction while being lifted, if the concave portions are formed in the movement restricting means 19b, 19c, 19d as described above, the extension portion Since the peripheral surface of 21 moves over the concave surface, it can be easily confirmed whether or not the connecting projection 13 is in contact with the desired movement restricting means 19b, 19c, 19d by the operator's tactile sensation.

(Modified embodiment)
1, 4, and 5 show a rectangular plate-like floor material 11 having a square shape in which the lengths of adjacent side portions 12 x and 12 y are equal, but as in the modified embodiment shown in FIG. 10. Moreover, you may form in the rectangle from which the length of a side part differs. In this case, the distance L1 between the pair of connection protrusions 13 and 13 and the pair of connection holes 14 and 14 provided on the X axis, and the pair of connection protrusions 13 and 13 and the pair of connection holes provided on the Y axis. 14 and 14 may be formed such that L1 <L2.

When laying the rectangular disk-shaped floor members 11 according to the illustrated modification one by one, all the floor members 11 should be laid parallel to each other and the Y axes parallel to each other. It ’s fine.

Other configurations are the same as those in the first embodiment, and the relationship and operation between the connection protrusion 13 and the connection hole 14 are also the same as those in the first embodiment.

(Second Embodiment)
1st Embodiment mentioned above is comprised so that the connection protrusion 13 of the newly installed floor material 11d which should be laid behind can be inserted and latched with respect to the connection hole 14 of fixed floor material 11a, 11c laid previously. I explained what I did. However, according to the present invention, as in the second embodiment shown in FIGS. 11 to 13, the connection protrusion and the connection hole are configured so that the relationship between the connection protrusion and the connection hole is reversed. On the other hand, you may comprise so that the connection hole 14 of the new floor material which should be laid down behind may be fitted and latched.

In the second embodiment, as shown in FIG. 11, the connection protrusion 13 is formed by a headed bolt inserted into the side wall portion 15a, and is fixed by screwing a nut 18 from the inside of the side wall portion 15a. , A shaft portion 13a protruding outward from the side wall portion 15a, and a retaining portion 13b projecting outward (outer circumferential direction) from the tip of the shaft portion 13a, and the retaining portion 13b from the outer surface of the side wall portion 15a. The protrusion length P is formed according to the distance to the tip of. This is the same as in the first embodiment.

The connecting hole 14 extends through the side wall 15a, and the holding hole 14a that allows the shaft 13a of the connecting projection 13 to pass therethrough but locks the retaining portion 13b so as not to be inserted and removed, and the holding hole A central introduction hole 14b disposed below 14a, and a left introduction hole 14c and a right introduction hole 14d disposed on the left and right of the central introduction hole 14b. The introduction holes 14c and 14d are formed in such a size that the retaining portion 13b can be inserted and removed together with the shaft portion 13a of the connecting projection 13. A communication passage is formed between the central introduction hole portion 14b, the left and right introduction hole portions 14c and 14d, and the holding hole portion 14a so that the shaft portion 13a can move therebetween.

The shaft portion 13a of the connecting projection 13 and the holding hole portion 14a of the connecting hole 14 are arranged as shown by an axis C when the side wall portion 15a of the adjacent floor material 11 is joined by laying the floor material 11. Are arranged so as to be located on the same axis. Accordingly, in this joined state, the shaft portion 13a of the connecting projection 13 provided on one side wall portion 15a is held by the holding hole portion 14a of the connecting hole 14 provided on the other side wall portion 15a, and the retaining portion 13b is held by the holding hole. Locks to the portion 14a.

The center introduction hole portion 14b and the left and right introduction hole portions 14c and 14d are arranged with a separation distance H2 below the holding hole portion 14a, and are separated from the center introduction hole portion 14b in the lateral direction. The separation distances L and R of the holes 14c and 14d are formed such that L ≧ P and R ≧ P with respect to the protruding length P of the connecting protrusion 13, respectively.

According to said structure, with respect to the fixed floor material (it shows with the code | symbol 11e) laid in advance on the floor surface F, the new floor material (it shows with the code | symbol 11h) which should be laid down behind is joined. In the case of connection, as shown in FIG. 11B, when the newly installed floor member 11h is lifted corresponding to the separation distance H2, the introduction hole portions (14b, 14c, 14d) of the connection hole 14 of the floor member 11h are formed. Since it faces the connection protrusion 13 in the fixed floor material 11e, the retaining portion 13b and the shaft portion 13a of the connection protrusion 13 are introduced by moving the newly installed floor material 11h toward the fixed floor material 11e as shown by the chain line in the figure. It can be received in the hole.

Therefore, when the newly installed floor material 11h is lowered until it is brought into contact with the floor F as shown in FIG. 11C from the state in which the connecting projection 13 is received in the introduction hole, the holding hole 14a of the connecting hole 14 is connected. By moving toward the shaft portion 13a of the protrusion 13, the retaining portion 13b is locked to the holding hole portion 14a, thereby connecting the both floor materials 11h and 11e inseparably.

FIG. 12 shows the operation of the central introduction hole portion 14b and the left and right introduction hole portions 14c and 14d constituting the introduction hole portion.

FIG. 12A shows a case where the side wall 15a of the new floor material 11h is joined to the side wall 15a of the fixed floor material 11e in a state where the side wall 15a faces from the front, that is, it is not displaced laterally. The effect | action when joining by attitude | position is shown. In this case, as described above, when the newly-installed floor member 11h is lifted corresponding to the separation distance H2, the center introduction hole portion 14b of the connection hole 14 faces the connection protrusion 13 and can be received. When the new floor member 11h is lowered in the received state, the holding hole portion 14a of the connecting hole 14 moves toward the shaft portion 13a, and the retaining portion 13b is locked to the holding hole portion 14a.

FIG. 12B shows a case where the side wall 15a of the fixed floor member 11e is joined in a posture in which the side wall 15a of the new floor member 11h is displaced to the left. In this case, when the new floor member 11h is lifted corresponding to the separation distance H2, the right introduction hole portion 14d of the connection hole 14 faces the connection protrusion 13 and can be received. In the received state, the connecting hole 14 is moved together with the new floor material 11h in the right direction as indicated by the arrow M1, and then the new floor material 11h is lowered, the holding hole portion 14a moves toward the shaft portion 13a. The retaining portion 13b is locked in the holding hole portion 14a.

FIG. 12C shows a case where the side wall 15a of the fixed floor member 11e is joined in a posture in which the side wall 15a of the new floor member 11h is displaced to the right. In this case, when the new floor member 11h is lifted corresponding to the separation distance H2, the left introduction hole portion 14c of the connection hole 14 faces the connection protrusion 13 and can be received. In the received state, after moving the connecting hole 14 together with the new floor material 11h in the left direction as indicated by the arrow M2, the holding hole 14a moves toward the shaft portion 13a when the new floor material 11h is lowered. The retaining portion 13b is locked in the holding hole portion 14a.

As a result of the above configuration, it is possible to construct a floor having a predetermined area by laying a plurality of floor materials 11 in order while receiving and locking the connection protrusions 13 in the connection holes 14, and laying work can be performed. Easy.

As shown in FIG. 13 (A), when the floor materials 11 are laid together one by one in sequence, the fixed floor material 11 (first fixed floor material 11e, second fixed floor material 11f, third, The fixed floor member 11g is arranged in an L shape and may cause a state in which a corner portion is left inside, and the newly installed floor member 11 (reference numeral) is installed behind the corner portion. 11h) is required to be arranged and connected in a joined state.

In the case of the above-described first embodiment, the connection hole faces the corner portion from the fixed floor material. However, in the case of the second embodiment, the connection protrusion extends from the fixed floor material 11e, 11g toward the corner portion. 13 is on display.

In this case, the new floor member 11h can be joined and connected by the same method as the first connection method and the second connection method described with respect to the first embodiment, but the first connection method will be described below. . Note that the second connection method may follow the second connection method described with respect to the first embodiment, and will be obvious to those skilled in the art with reference to the above description, and thus the description thereof is omitted.

(Consolidation method)
FIG. 13 shows a method of first joining and connecting the side part 12x of the newly-illustrated floor member 11h to the side part 12x of the first fixed floor member 11e. In the case of this method, when the newly installed floor member 11h is opposed to the first fixed floor member 11e in a posture shifted to the left side and lifted up, as shown by a chain line in FIG. Between 12x and 12x, the right introduction hole portion 14d of the connecting hole 14 (indicated by reference numeral 14x) can face the connecting protrusion 13 (indicated by reference numeral 13x). At this time, the connecting projection protrudes from the side portion 12y of the third fixed floor member 11g as indicated by the symbol P. However, since the above-described L ≧ P is established, the connecting projection is newly provided. There is no interference with the floor material 11h.

Therefore, when the newly installed floor member 11h is moved toward the first fixed floor member 11e as indicated by the arrow Q1, the connection protrusion 13x is received in the right introduction hole portion 14d of the connection hole 14x. That is, the connecting protrusion 13x is inserted into the right introduction hole 14d. Due to the movement indicated by the arrow Q1, between the newly installed floor material 11h and the third fixed floor material 11g, as shown by a chain line in FIG. 13C, the central introduction hole portion of the connecting hole 14 (indicated by reference numeral 14y) 14b faces the connection protrusion 13 (indicated by reference numeral 13y), and is in a state where it can be received.

Subsequently, when the newly installed floor member 11h is moved toward the third fixed floor member 11g as indicated by the arrow Q2, the arrow M1 in FIG. 13B is interposed between the newly installed floor member 11h and the first fixed floor member 11e. As shown, the central introduction hole 14b of the connection hole 14x moves toward the connection protrusion 13x. At the same time, between the new floor material 11h and the third fixed floor material 11g, the central introduction hole portion 14b of the connection hole 14y receives the connection protrusion 13y. That is, the connecting protrusion 13y is inserted into the central introduction hole 14b.

Therefore, after that, when the newly installed floor member 11h is lowered and brought into contact with the floor surface, the holding hole portion 14a of the connecting hole 14x moves toward the connecting protrusion 13x between the newly installed floor member 11h and the first fixed floor member 11e. Thus, simultaneously with the insertion locking, the holding hole portion 14a of the connection hole 14y moves toward the connection protrusion 13y and is locked between the newly-installed floor material 11h and the third fixed floor material 11g.

(Holding means)
Also in the floor material 11 of the second embodiment, it is preferable to provide the holding means described above with reference to FIGS. The basic difference between the first embodiment and the second embodiment is that the connection protrusion 13 and the connection hole 14 are configured in opposite directions, and the holding hole 14a and the introduction holes 14b, 14c, and 14d constituting the connection hole 14 are moved up and down. It is in the point constructed on the opposite side. Accordingly, even if not particularly described in detail, if the movement restricting means 19b, 19c, 19d as described above are provided at the lower edge of the introduction holes 14b, 14c, 14d, and configured similarly to the above, the holding means Can be easily implemented.

11 Floor materials 11a, 11b, 11c, 11e, 11f, 11g Preceding fixed floor materials 11d, 11h New floor materials 12x, 12y to follow Later side portions 13 Connecting protrusions 13a Shaft portions 13b Detaching portions 14 Connecting holes 14a Holding holes Part 14b Center introduction hole part 14c Left introduction hole part 14d Right introduction hole part 15a Side wall part 16 Top plate 17 Seat means 18 Flange 19b, 19c, 19d Movement restriction means 20 Projection piece 21 Extension part of shaft part

Claims (7)

A rectangular disk-like floor material laid vertically and horizontally on the floor surface, and provided with a connection projection and a connection hole on mutually opposing side portions, and the connection protrusion is inserted and locked into the connection hole And
The connection protrusion (13) includes a shaft portion (13a) and a retaining portion (13b) projecting outward from the tip of the shaft portion,
The connecting hole (14) includes a holding hole portion (14a) that allows the shaft portion to be inserted and locked to the retaining portion when an adjacent floor material is grounded to the floor surface, and one floor material from the floor surface. An introduction hole portion that allows the retaining portion and the shaft portion to be inserted and removed when lifted, and a communication path that allows the shaft portion to move from the introduction hole portion toward the holding hole portion;
The introduction hole portion of the connection hole (14) includes a central introduction hole portion (14b) that is offset in the vertical direction with respect to the holding hole portion (14a), and left and right spaces that are separated in the lateral direction of the central introduction hole portion. A flooring material comprising an introduction hole (14c) (14d). Separation distance of left and right introduction hole portions (14c) and (14d) spaced laterally from the holding hole portion (14a) with respect to the projecting length P of the connecting projection (13) projecting from the side portion of the floor material The flooring material according to claim 1, wherein L and R are formed such that L≥P and R≥P, respectively. Of the side parts intersecting each other of the rectangular disk-like floor material, with respect to the X axis parallel to one side part and the Y axis parallel to the other side part,
Of the pair of side portions (12x, 12x) facing each other on the X-axis, a plurality of connection projections (13) are provided on one side portion, and a plurality of connection holes (14 ), The shaft portion (13a) of the connecting projection provided on both sides and the holding hole portion (14a) of the connecting hole are arranged coaxially with each other,
Among the pair of side portions (12y, 12y) facing each other on the Y-axis, a plurality of connection projections (13) are provided on one side portion, and a plurality of connection holes (14 3. A shaft portion (13a) of a connecting projection provided on both sides and a holding hole portion (14a) of a connecting hole are arranged coaxially with each other. Floor material.
The retaining portion (13b) of the connecting projection (13) is constituted by a flange (18) protruding from the entire circumference of the tip of the shaft portion (13a),
The introduction hole portion (14b, 14c, 14d) of the connection hole (14) has a movement restricting means (19b, 19c, 14) on the edge portion on the opposite side of the holding hole portion (14a) among the upper and lower edge portions of the hole. 19d)
With the connecting projection (13) inserted through the connecting hole (14), the shaft portion (13a) of the connecting projection (13) is introduced into the introduction hole by lifting one floor material with respect to the other floor material. (14b, 14c, 14d), when the flange (18) abuts against the movement restricting means (19b, 19c, 19d), the retaining portion (13b) is introduced into the introduction hole (14b, 14c). 14d) is configured to be held at a position where it can be removed from the floor material. The retaining portion (13b) of the connecting projection (13) is constituted by a protruding piece (20) protruding from a portion facing the holding hole portion (14a) among the upper and lower portions of the tip of the shaft portion (13a). An extension (21) of the shaft (13a) is formed on the opposite side of the projecting piece (20),
The introduction hole portion (14b, 14c, 14d) of the connection hole (14) has a movement restricting means (19b) on an edge facing the extension portion (21) of the shaft portion (13a) among the upper and lower edge portions of the hole. , 19c, 19d)
With the connecting projection (13) inserted through the connecting hole (14), the shaft portion (13a) of the connecting projection (13) is introduced into the introduction hole by lifting one floor material with respect to the other floor material. When the extension portion (21) of the shaft portion (13a) comes into contact with the movement restricting means (19b, 19c, 19d) when facing the (14b, 14c, 14d), the retaining portion (13b) is The floor material according to claim 1, 2 or 3, wherein the floor material is configured to be held at a position where it can be removed from the introduction hole (14b, 14c, 14d).
The side part provided with the connecting projection (13) of the floor material to be laid downstream is joined to the side part provided with the connecting hole (14) of the floor material previously laid on the floor surface. It is configured to connect with,
The connecting hole (14) is spaced apart from the holding hole portion (14a) coaxial with the shaft portion (13a) of the connecting protrusion (13) by separating the introduction hole portions (14b, 14c, 14d) upwardly by a distance H1. Arranged through
The connecting projection (13) is lifted corresponding to the separation distance H1 together with the floor material to be laid downstream, so that the connection projection (13) is inserted into the introduction hole portion and corresponds to the separation distance H1. The connecting projection (13) is configured to move toward the holding hole (14a) by being lowered and grounded to the floor surface. 5. The floor material according to 5. The side portion provided with the connecting hole (14) for the floor material to be laid downstream is joined to the side portion provided with the connecting protrusion (13) for the floor material previously laid on the floor surface. It is configured to connect with,
The connecting hole (14) is spaced apart from the holding hole portion (14a) coaxial with the shaft portion (13a) of the connecting protrusion (13) by a distance H2 from the introduction hole portions (14b, 14c, 14d). Arranged through
The connecting hole (14) is lifted corresponding to the separation distance H2 together with the floor material to be laid behind, so that the connection protrusion (13) is inserted into the introduction hole portion and also corresponds to the separation distance H2. The holding hole (14a) is configured to move toward the connecting projection (13) by being lowered and grounded to the floor surface. 5. The floor material according to 5.

Images