JP2007327271A - Planking - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide plankings easily connected to one another and easily replaced when needing to replace one of a large number of plankings connected to one another. <P>SOLUTION: A recessed part 2 and a projecting part 3 are formed at each side of a square plate body 1. The plate body 1 is provided with plate body side pin insertion paths 4 penetrating along the sides formed with the recessed parts 2, and a projecting part side pin insertion path 5 is provided penetrating each projecting part 3. A pin body part 7 of a lock pin 6 is slidably inserted through the plate body side pin insertion path 4 over a connected position and a storage position. A part of the plate body side pin insertion path 4 is formed as an open groove 4a opened to a plate body surface 1a, and the open groove 4a is provided with a first lateral groove 9 and a second lateral groove 10. In the engaged state of the recessed part 2 and the projecting part 3, the pin body part 7 of the lock pin 6 is slid into the connected position to connect the adjacent plate bodies 1, 1 to each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention can be applied to construction sites, construction material storage areas, parking lots, parks, unpaved roads, sidewalks, and other grounds, as well as event venues such as open spaces, baseball fields, soccer fields, and athletic field fields. (Including turkers, natural turf, and artificial turf).

As a conventional floor board, there exists a thing described in patent document 1, for example. This laying plate is a laying plate formed by symmetrically combining two upper and lower plastic plate members, forming a concave and convex engaging portion on each side, and at least connecting holes along two opposite parallel sides. By forming and connecting a long connecting member such as a connecting pipe, rope, chain, bar or the like into this connecting hole, adjacent floor plates are connected to each other.
JP-A-11-152706

  According to the laying plate described in Patent Document 1, the laying plate is composed of two upper and lower plastic plate members symmetrically combined. Therefore, the manufacturing cost is high and the assembly is troublesome. In that case, since a large number of floor plates are connected by a series of connecting pipes, etc., when one of the floor plates is replaced due to damage after the connection, a large number of floor plates are connected. It is necessary to pull out a series of connecting pipes, etc., and to disassemble a large number of floorboards, and the replacement work of the floorboards is very troublesome.

  In view of the above-mentioned problems, the present invention has a simple structure and low manufacturing costs, and can easily and easily connect the floor plates, and one of the many floor plates connected to each other is damaged. It is an object of the present invention to provide a base plate that can be easily removed from another adjacent base plate and can be easily replaced with a new one when it is necessary to replace it.

  Means for solving the above-described problems will be described with reference numerals in the embodiments described later. The base plate A of the invention according to claim 1 is engaged with each side of the quadrilateral plate body 1 in an uneven manner. A concave portion 2 and a convex portion 3 are formed, and a plate body side pin insertion passage 4 is formed through the plate body 1 so as to cross the concave portion 2 along the side where the concave portion 2 is formed. The projecting portion side pin insertion passage 5 is provided so as to communicate coaxially with the plate body side pin insertion passage 4 in a state in which the projection portion 3 is engaged with the recess portion 2 of the other plate body 1. In the insertion passage 4, the pin main body portion 7 of the lock pin 6, which is composed of the pin main body portion 7 and the handle portion 8 protruding sideways, is slid over the connecting position crossing the concave portion 2 and the storage position retracted from the concave portion 2. The plate body side pin insertion passage 4 is an opening that opens partly on the plate body surface 1a. 4a, and the opening groove 4a is provided with a first lateral groove 9 into which the handle portion 8 is recessed at the connecting position of the pin body portion 7 and a second lateral groove 10 into which the handle portion 8 is recessed at the storage position. The adjacent plate main bodies 1 and 1 are connected to each other by sliding the pin main body portion 7 of the lock pin 6 to the connecting position in a state in which the projection 2 and the projection 3 are engaged.

  According to a second aspect of the present invention, in the floorboard A according to the first aspect, the first lateral groove 9 and the second lateral groove 10 cause the grip 8 of the lock pin 6 that is immersed in the lateral grooves 9 and 10 on the respective inner wall surfaces. It is characterized in that the insertion portion 11 for inserting the operator's fingers and a rod-like body is recessed.

  According to a third aspect of the present invention, in the floor plate A according to the first aspect, the first horizontal groove 9 and the second horizontal groove 10 are inclined so that the bottom surfaces of the horizontal grooves 9 and 10 rise upward from the bottom of the opening groove 4 toward the plate body surface 1a. It is formed on the inclined surfaces 9a and 10a.

  According to a fourth aspect of the present invention, in the floorboard A according to the third aspect, the first lateral groove 9 and the second lateral groove 10 are formed deeper on the upstream end side of each inclined bottom surface 9a, 10a, An insertion portion 12 for inserting a rod-like body is formed.

  According to a fifth aspect of the present invention, in the flooring board A according to any one of the first to fourth aspects, the lock pin 6 is formed in an L shape by a pin main body portion 7 and a handle portion 8 protruding laterally at right angles from one end portion thereof. It is characterized by being made.

  Claim 6 is a peripheral base plate B used by being connected to the base plate A according to any one of claims 1 to 5, wherein a convex portion 3 is formed on one side of a square plate body 21, and the convex portion 3 is formed. The portion 3 is formed by penetrating a pin insertion passage 5 that communicates coaxially with the plate body side pin insertion passage 4 of the floor plate A in a state where the convex portion 3 is engaged with the recess 2 of the floor plate A. Features.

  Claim 7 is a peripheral base plate C that is used by being connected to the base plate A according to any one of claims 1 to 5, wherein the concave portion 2 is formed on one side of the rectangular plate body 31, and this side A pin insertion passage 4 that passes through the concave portion 2 is provided in parallel with the pin insertion passage 4, and the pin main body portion 7 of the lock pin 6 is retracted from the concave portion 2 and the connecting position across the concave portion 2. The pin insertion passage 4 has an opening groove 4a that opens to the plate body surface 31a, and a position where the pin body portion 7 is connected to the opening groove 4a. The first lateral groove 9 into which the handle portion 8 is immersed and the second lateral groove 10 into which the handle portion 8 is recessed at the storage position are provided.

  An eighth aspect is characterized in that, in the peripheral base plate B according to the sixth aspect, a slope 20 is formed on the surface 21 a of the plate body 21 in a region opposite to the convex portion 3.

  The ninth aspect is characterized in that, in the peripheral base plate C according to the seventh aspect, a slope 20 is formed on the surface 31 a of the plate body 31 in a region opposite to the concave portion 2.

  The effect of the invention by the above solution will be described with reference numerals in the embodiments described later. According to the invention of claim 1, in order to lay the floor plate A in the front-rear and left-right directions, The concave body 2 and the convex section 3 of the plate main bodies 1, 1 of the adjacent floor boards A, A are engaged with each other, and the handle portion 8 of the lock pin 6 is caused from the second lateral groove 10. 7 is slid from the storage position to the connecting position to connect the recessed portion 2 and the protruding portion 3 that are engaged with each other. When the concave portion 2 and the convex portion 3 of the lock pin 6 are engaged with each other and the pin main body portion 7 of the lock pin 6 is slid from the storage position to the connecting position, the concave portion 2 and the convex portion 3 that are engaged with each other are connected. Since it is good, the floorboards A can be connected easily and easily. Bets can be, also grip portion 8 of the locking pin 6, by post ligation is retracted into the first lateral grooves 9, it does not project on the surface of the plate main body 1a.

  Further, after the laying plate A is laid, when a part of the laying plate A is damaged and needs to be replaced, the handle portion 8 of each lock pin 6 attached to the laying plate A requiring replacement is raised from the first lateral groove 9. When the pin body portion 7 is slid from the coupling position to the storage position by the grip portion 8, the floor plate A can be separated from the other floor plate A adjacent thereto, and thus the floor plate A that needs to be replaced. It can be easily removed and replaced with a new one. In addition, the floor board A has a simple structure, so that the manufacturing cost is low.

  According to the second aspect of the present invention, an operator's fingers and a rod-like body are inserted into the first lateral groove 9 and the second lateral groove 10 in order to cause the handle portion 8 of the lock pin 6 that is immersed in the lateral grooves 9, 10. Since the insertion portion 11 is recessed, the handle portion 8 can be easily raised by inserting a rod-like body such as the operator's finger f or a driver into the insertion portion 11.

  According to the third aspect of the present invention, the first horizontal groove 9 and the second horizontal groove 10 are inclined surfaces 9a in which the bottom surfaces of the respective horizontal grooves 9, 10 are inclined upward from the bottom of the opening groove 4 toward the plate body surface 1a. 10a, when the handle portion 8 of the lock pin 6 immersed in each lateral groove 9, 10 is caused, the operator's fingers are placed on the upstream end side of the inclined bottom surface of each lateral groove 9, 10. By inserting a rod-like body such as f or a screwdriver, the handle 8 can be easily raised.

  According to the invention which concerns on Claim 4, the 1st horizontal groove 9 and the 2nd horizontal groove 10 form the upstream edge part side of each inclined bottom face 9a, 10a in one step deeply, and insert an operator's finger and a rod-shaped body. Since the insertion portion 12 is formed, the grip portion 8 can be easily raised.

  According to the fifth aspect of the present invention, the lock pin 6 has a simple structure formed in an L shape by the pin main body portion 7 and the handle portion 8 projecting from the one end portion of the lock pin 6 at right angles. The manufacture is easy, and the formation of the first lateral grooves 9 and the second lateral grooves 10 is facilitated.

  When the peripheral base plate B of the invention according to claim 6 is engaged with the concave portion 2 of one base plate A located at the peripheral portion of the base plate connecting structure as shown in FIG. By sliding the pin body portion 7 of the lock pin 6 from the storage position to the connection position in exactly the same way as the connection method in the case of the floor plate A described above, the plate body 21 of the peripheral floor plate B is moved to the plate body 1 of the floor plate A. Therefore, by using this peripheral base plate B, the uneven portions 2 and 3 of the base plate A are not exposed around the base plate connecting structure, and the appearance and appearance are improved.

  The peripheral floor plate C of the invention according to claim 7 has its concave portion 2 engaged with the convex portion 3 of the base plate A located in the peripheral portion of the base plate connecting structure as shown in FIG. By sliding the pin body portion 7 of the lock pin 6 provided on the floor plate C from the storage position to the coupling position, the plate body 31 of the peripheral floor plate C can be coupled to the plate body 1 of the floor plate A, Therefore, by using this peripheral laying plate C, the uneven portions 2 and 3 of the laying plate A are not exposed around the laying plate coupling structure, and the appearance and appearance are improved.

  According to the invention according to claim 8, since it is the peripheral base plate B 'with a slope, for example, when the peripheral base plate B' is laid in a baseball field or the like to form a base plate connecting structure for an event venue, the base plate connection There is no step in the periphery of the structure, and it is possible to avoid dangers such as hooking shoes when stepping on the floorboard connection structure.

  According to the ninth aspect of the present invention, since it is the peripheral base plate C ′ with a slope, for example, when the base plate for the event venue is formed by laying the peripheral base plate C ′ on a baseball field or the like, the base plate connection There is no step in the periphery of the structure, and it is possible to avoid dangers such as hooking shoes when stepping on the floorboard connection structure.

  A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a perspective view of the floor plate A according to the present invention as viewed from the front side, and FIG. 2 (a) is a plan view of the siding plate A, (b) is a side view of the siding plate A as viewed from the arrow (a), and (c) is the siding plate A (a). FIG. 3A is a side view of the floor plate A, and FIG. 3B is a plan view of the lock pin. 4A is a plan view showing a use state in which a large number of flooring boards A are connected, and FIG. 4B is an enlarged view of a portion indicated by an arrow c in FIG.

  The floor plate A is formed of a plastic plate body 1 having a substantially equal side length, and a concave portion 2 and a convex portion 3 that engage with each other on each side of the rectangular plate body 1. And are formed alternately. Referring to FIG. 2 (a), a convex portion 3 is formed on the left side of the upper side of the rectangular plate body 1, and a convex portion 3 is formed on the right side of the lower side. A recess 2 is formed in the lower half of the right side of the side and a recess 2 is formed in the upper half of the left side. Further, only a part of the surface 1a of the plate main body 1 is indicated by an arrow D in FIG. 2 (a), and as shown in FIGS. As shown in FIG. 1B and FIG. 3, the ribs r are formed on the back side in the form of vertical and horizontal grids and diagonal lattices.

  There is a plate body side pin insertion passage 4 that crosses the recess 2 along the side where the recess 2 is formed in the plate body 1 (the right side and the left side when referring to FIG. 2A). It extends in parallel so as to cover the entire side, and each convex portion 3 communicates coaxially with the plate body side pin insertion passage 4 in a state where the convex portion 3 is engaged with the concave portion 2 of the other plate body 1. Such a convex part side pin insertion path 5 is penetrated in the direction orthogonal to the plate main body side pin insertion path 4.

  In the plate body side pin insertion passage 4, a lock pin 6 formed in an L shape as shown in FIG. 3 (b) is composed of a pin body portion 7 and a handle portion 8 protruding laterally from one end of the pin body portion 7. The pin main body 7 slides over a connecting position crossing the recess 2 as shown on the left side of FIG. 2A and a storage position retracted from the recess 2 as shown on the right side of FIG. It is inserted freely and freely.

Further, as can be seen from FIG. 1 (a) and FIG. 2 (a), a part of the plate body side pin insertion passage 4 is formed as an opening groove 4a opened in the surface 1a of the plate body 1, The opening groove 4a includes a first lateral groove 9 into which the handle portion 8 is recessed when the pin body portion 7 is in the coupling position, and a second lateral groove 10 into which the handle portion 8 is recessed when the pin body portion 7 is in the storage position. , Branched so as to be orthogonal to the opening groove 4a. The bottom surfaces 9a and 10a of the first lateral groove 9 and the second lateral groove 10 are shown in FIG.
As shown by a broken line, the surface 1a of the plate body 1 is parallel to the surface 1a.

  Further, as can be seen from FIGS. 1A and 2A, the first lateral groove 9 and the second lateral groove 10 are respectively provided on the inner wall surfaces thereof, and the handle portion of the lock pin 6 immersed in the lateral grooves 9 and 10. In order to cause 8, an insertion portion 11 into which a rod-like body such as an operator's finger or tool is inserted is recessed.

  Next, when the floor plate A having the above-described structure is laid in a predetermined place in the front-rear and left-right directions as shown in FIG. 4, the plate bodies 1, 1 of the floor plates A, A adjacent in the front-rear direction are arranged. By engaging the opposing concave portion 2 and the convex portion 3 with each other and sliding the pin main body portion 7 of the lock pin 6 from the storage position to the coupling position, the concave portion 2 and the convex portion 3 that are engaged with each other. The pin body 7 of the lock pin 6 is connected from the retracted position by engaging the concave portions 2 and the convex portions 3 of the plate bodies 1 and 1 of the floor plates A and 1 adjacent to each other in the left-right direction. The concave portion 2 and the convex portion 3 that are engaged with each other are connected to each other by sliding to the right. FIG. 4A shows a state in which a large number of floorboards A are connected in the front-rear and left-right directions in this way, and FIG. 4B is an enlarged view of the portion indicated by the arrow c in FIG.

  The connecting method of the recessed portion 2 and the protruding portion 3 engaged with each other will be described in more detail with reference to FIG. 2 as well, when the pin body portion 7 of the lock pin 6 is retracted to the storage position. The opposite concave portions 2 and the convex portions 3 of the plate bodies 1 and 1 of the floor plates A and 1 adjacent to each other in the left-right direction are engaged with each other, so that the handle portion 8 of the lock pin 6 that is immersed in the second lateral groove 10 is Then, the pin body portion 7 is slid from the storage position to the connection position along the opening groove 4a of the plate body-side pin insertion passage 4 by this handle portion 8, and thereby the recess 2 and The convex part 3 is connected. After this connection, the lock pin 6 is locked in the connection position by tilting the handle portion 8 of the lock pin 6 into the first lateral groove 9 and immersing it.

  In order to cause the handle portion 8 of the lock pin 6 from the second lateral groove 10, an operator's finger is inserted into the insertion portion 11 provided in the second lateral groove 10 or a screwdriver (screwdriver) is inserted. If lifted, the handle portion 8 can be easily raised.

  After laying a large number of floorboards A in a predetermined place as described above, when some of the floorboards A are damaged and need replacement, the handle of each lock pin 6 attached to the floorboard A that needs to be replaced If the portion 8 is raised from the first lateral groove 9 and the pin body portion 7 is slid from the connecting position to the storage position by the handle portion 8, the floor plate A can be separated from the other floor plate A adjacent thereto. Only the floorboard A that has been damaged and needs to be replaced can be removed and replaced with a new one.

  The floorboard A according to the present invention includes a plaza, an event venue, a baseball field, a soccer field, a field of an athletics stadium (including an untied car, natural turf, and artificial turf), a construction site, a construction material storage area, a parking lot It can be easily laid on the ground of parks, unpaved roads and sidewalks.

  In the embodiment shown in FIG. 1 to FIG. 4, the first lateral groove 9 and the second lateral groove 10 of the plate body side pin insertion passage 4 have respective inner wall surfaces 9 a and 10 a as planes parallel to the surface 1 a of the plate body 1, In the inner wall surfaces of the grooves 9 and 10, an insertion portion 11 for inserting an operator's fingers or a rod-like body is provided in order to cause the handle portion 8 of the lock pin 6. In the embodiment of FIGS. 5 and 6, By forming each bottom groove 9a, 10a of the first lateral groove 9 and the second lateral groove 10 into an inclined surface that is inclined upward from the bottom of the opening groove 4a toward the surface 1a of the plate body 1, each lateral groove 9, When the handle portion 8 of the lock pin 6 that is immersed in 10 is caused, a bar shape such as an operator's finger f or a screwdriver is provided on the upstream end side of the inclined bottom surfaces 9a and 10a of the lateral grooves 9 and 10. Inserting the body easily causes the handle 8 of the lock pin 6 So that it is theft. The inclination angle of the inclined bottom surfaces 9a and 10a with respect to the horizontal plane is preferably about 30 ° to 45 °.

  In this case, the inclined bottom surfaces 9a and 10a of the first lateral groove 9 and the second lateral groove 10 are formed deeper on the upstream end side as shown in FIG. If the insertion portion 12 to be inserted is formed, it is easy to grasp the tip portion of the handle portion 8 of the lock pin 6 immersed in each of the lateral grooves 9 and 10 with the fingers f, or to easily hook the rod-like body on the tip portion of the handle portion 8. Therefore, it is easier to raise the handle portion 8.

  FIG. 7 shows peripheral floor boards B and C connected to each floor board A located at the periphery of the floor board connecting structure as shown in FIG. 4 in which a large number of floor boards A are connected in the front-rear and left-right directions. Reference numeral 8 denotes the usage procedure of the peripheral floor boards B and C. In other words, since the floor plate A has the concave portion 2 and the convex portion 3 formed on each side of the quadrangle, as can be seen from (a) and (b) in FIG. Since the uneven portions 2 and 3 are exposed, the appearance and appearance of the appearance are deteriorated, and there are inconveniences that the toe of the shoe is caught and damaged. Therefore, the peripheral floor plates B and C, which are different from the floor plate A and do not expose the uneven portions 2 and 3 around the base plate connecting structure, are provided. It is formed in a rectangular shape having a size that is divided into two, and a concave portion 2 or a convex portion 3 is formed on one long side thereof.

  As shown in (a-1) and (a-2) of FIG. 7, the peripheral laying board B is a convex portion on one long side of the rectangular board body 21 having a size that is obtained by dividing the square laying board A into two parts. 3, and a pin insertion passage 5 is formed in the convex portion 3 so as to communicate coaxially with the plate body side pin insertion passage 4 of the floor plate A in a state where the convex portion 3 is engaged with the concave portion 2 of the floor plate A. It is something that has been installed. Reference numeral 21 a denotes the surface of the plate body 21. As shown in FIGS. 7 (b-1) and (b-2), the peripheral floor plate C forms a recess 2 on one long side of the rectangular plate body 31 having the same size as the peripheral floor plate B. In addition, a pin insertion passage 4 is provided in parallel with the one long side so as to cross the recess 2, and the pin body portion 7 of the lock pin 6 is connected to the pin insertion passage 4 across the recess 2. The pin insertion passage 4 is formed into an opening groove 4a that opens partly on the plate body surface 31a, and is inserted into the opening groove 4a. A first lateral groove 9 into which the handle portion 8 is immersed at the connecting position of the pin body portion 7 and a second lateral groove 10 into which the handle portion 8 is inserted at the storage position are provided.

  Since the concave portion 2, the convex portion 3, the pin insertion passages 4, 5, the opening groove 4a and the lock pin 6 in the peripheral floor plates B and C have the same configuration as the floor plate A, the same reference numerals are used for the same members. Detailed description will be omitted. Further, the configuration of the inclined surfaces 9a and 10a shown in FIG. 6 is also applied to the first horizontal groove 9 and the second horizontal groove 10 of the peripheral floor plate C. In this embodiment, the peripheral base plates B and C have a rectangular shape with a size obtained by dividing the square base plate A into two, but may be a square having the same size as the square base plate A.

  Thus, in using the peripheral base plates B and C, first, the peripheral base plate B has the convex portion 3 with the concave portion 2 of one base plate A located at the peripheral portion of the base plate connecting structure as shown in FIG. After that, the plate body of the peripheral base plate B is slid by moving the pin main body portion 7 of the lock pin 6 from the storage position to the connection position in exactly the same manner as in the case of the base plate A described above. 21 can be connected to the plate body 1 of the floor plate A. Similarly, the peripheral base plate C is provided in the peripheral base plate C in a state in which the concave portion 2 is engaged with the convex portion 3 of the base plate A located in the peripheral portion of the base plate coupling structure shown in FIG. The plate body 31 of the peripheral floor plate C can be connected to the plate body 1 of the floor plate A by sliding the pin main body portion 7 of the lock pin 6 from the storage position to the connection position.

FIG. 9 shows the sloped peripheral floor boards B ′ and C ′ in which the slope 20 is formed on the outer end side of the board main body surfaces 21 a and 31 a of the peripheral base boards B and C shown in FIG. 9 (a-1) is a plan view of a peripheral floor board B ′ with a slope in which a slope 20 is formed in a region opposite to the concave portion 2 of the board body surface 21a of the peripheral base board B. FIG. (A-2) is a front view thereof. FIG. 9B-1 is a plan view of a peripheral floor board B ′ with a slope in which a slope 20 is formed in a region opposite to the convex portion 3 of the surface 31a of the peripheral base board C. (b-2)
Is a front view thereof. The configuration other than the slope 20 is exactly the same as the peripheral floor plates B and C in FIG. For example, when the slope plate A and the surrounding base plates B and C are laid on a natural or artificial turf of a baseball field to form a base plate connecting structure for an event venue, the slope 20 is attached to the base plate connecting structure. When there is a step in the periphery when a foot is stepped on, there is a risk of shoes being caught, so this is provided to avoid such danger.

(a) is the perspective view which looked at the flooring board A which concerns on this invention from the surface side, (b) is the perspective view which looked at the flooring board A from the back surface side. (a) is a plan view of the base plate A, (b) is a side view of the base plate A viewed from the arrow a in (a), and (c) is a side view of the base plate A viewed from the arrow b in (a). is there. (a) is a bottom view of the floor plate A, and (b) is a plan view of the lock pin. (a) is a top view which shows the use condition of the floorboard A, (b) is an enlarged view of the part shown by the arrow c of (a). (a) is a top view of the flooring board A by other embodiment, (b) is a side view. FIG. 6 is an enlarged sectional view of the ho-ho line of FIG. (a-1) is a plan view of the peripheral base plate B, (a-2) is a front view thereof, (b-1) is a plan view of another peripheral base plate C, and (b-2) is a front view thereof. is there. It is a top view which shows the usage method of the floorboard B for periphery. (a-1) is a plan view showing a peripheral base plate B ′ with a slope, (a-2) is a front view thereof, (b-1) is a plan view of another peripheral base plate C ′ with a slope, ( b-2) is the front view.

Explanation of symbols

A slats B, C Peripheral slats B ', C' Peripheral slats 2 Slopes 3 Protrusions 4 Pin insertion passages 4a Opening grooves 5 Pin insertion passages 6 Lock pins 7 Pin body portions 8 Handle portions 9 First lateral grooves 10 First 2 transverse grooves

Claims (9)

  A concave portion and a convex portion that engage with each other are formed on each side of the rectangular plate main body, and the plate main body side pin insertion passage that crosses the concave portion extends along the side that forms the concave portion on the plate main body. Each projection is provided with a projection-side pin insertion passage that is coaxially connected to the plate-body-side pin insertion passage in a state where the projection is engaged with a depression of another plate body. In the side pin insertion path, the pin body part of the lock pin consisting of the pin body part and the handle part protruding sideways is slidable and freely rotatable between the coupling position crossing the recess and the storage position retracted from the recess. A part of the plate body side pin insertion passage is formed as an opening groove that opens to the surface of the plate body. The opening groove includes a first lateral groove into which the handle portion is inserted at the connection position of the pin body portion, and a storage position. A state in which a second lateral groove into which the handle portion is immersed is provided and the concave portion and the convex portion are engaged. By sliding the pin body portion of the locking pin in the coupling position, decking which is adapted to connect adjacent plate body each other.   2. The first lateral groove and the second lateral groove are each provided with an insertion portion for inserting a finger or a rod-like body of an operator in order to cause a handle portion of a lock pin immersed in the lateral groove on each inner wall surface. The floorboard described in 1.   The floor plate according to claim 1, wherein the first horizontal groove and the second horizontal groove are formed on an inclined surface in which the bottom surface of each horizontal groove is inclined upward from the bottom of the opening groove toward the surface of the plate body.   The floor plate according to claim 3, wherein the first horizontal groove and the second horizontal groove are formed deeper on the upstream end side of each inclined bottom surface to form an insertion portion into which an operator's fingers or a rod-like body is inserted.   The laying board according to any one of claims 1 to 4, wherein the lock pin is formed in an L shape by a pin main body part and a handle part protruding from the one end part of the pin at right angles.   A peripheral base plate used by being connected to the base plate according to any one of claims 1 to 5, wherein a convex portion is formed on one side of a quadrilateral plate body, and the convex portion is a base plate. Peripheral laying board formed by penetrating a pin insertion passage that communicates coaxially with the plate main body side pin insertion passage of the laying board in a state of being engaged with the concave portion of the lining plate.   A peripheral floor plate used by being connected to the floor plate according to any one of claims 1 to 5, wherein a concave portion is formed on one side of a rectangular plate body, and the concave portion is traversed parallel to the one side. A pin insertion passage is penetrated, and the pin body of the lock pin is inserted into the pin insertion passage so as to be slidable and rotatable between a connection position crossing the recess and a storage position retracted from the recess. A part of the insertion passage is an opening groove that opens to the surface of the plate body. The opening groove has a first lateral groove in which the handle portion is immersed at the connecting position of the pin body portion, and a second groove in which the handle portion is immersed in the storage position. Peripheral slats provided with lateral grooves.   The peripheral floor board according to claim 6, wherein a slope is formed on a surface of the board main body on a side opposite to the convex portion. The peripheral floor board according to claim 7, wherein a slope is formed on a surface of the board main body on a side opposite to the concave portion.

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