JP7334944B2 - Connection structure between sole plates - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a connection structure between a plurality of sole plates that are arranged vertically and horizontally and connected.

Conventionally, as a connection structure of this type of sole plates, a structure in which the outer edges are overlapped in the vertical direction is known (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 9-302606 (Fig. 3, etc.)

In the above-described conventional connection structure between floor plates, it is required to suppress looseness.

The invention according to claim 1, which has been made to achieve the above object, is a connection structure for a plurality of floorboards that are arranged vertically and horizontally and are connected to each other, wherein the edge of one of the adjacent floorboards is directed upward or downward. In the connection structure between the sole plates, the first thin plate portion formed by depression and the second thin plate portion provided at the edge of the other sole plate and overlapping the first thin plate portion in the vertical direction are engaged, One of the first thin plate portion and the second thin plate portion is provided with a sandwiched portion having a pair of side surfaces extending in a second direction orthogonal to the first direction in which the edge portion extends, and the first thin plate portion and the second thin plate portion A sandwiching portion sandwiching the sandwiched portion in the first direction is provided on the other side of the second thin plate portion. At least one of the parts is a connection structure between sole plates forming a closed ring .

According to a second aspect of the present invention, there is provided a connection structure between sole plates according to the first aspect, wherein the holding portion has an inclined portion on the outer surface thereof for guiding the portion to be held which is pushed in from the side.

The invention according to claim 3 is the connection structure for floor plates according to claim 1 or 2, wherein the side surface of the clamped portion is formed with a retaining projection that can be engaged with the clamping portion .

In the connecting structure of the sole plates according to claim 1 , the part to be held and the part to be held are press-fitted, so there is almost no clearance and rattling can be suppressed.

In addition , since at least one of the portion to be held and the portion to be held has a closed ring shape and is easily elastically deformed, even if the positions of the portion to be held and the portion to be held are slightly misaligned due to expansion or contraction of the floor plate, It is possible to make it easier to engage the part to be held and the part to be held.

According to the connection structure of the bottom plates of claim 2 , when the first thin plate portion and the second thin plate portion are brought close to each other from the side and overlapped in the vertical direction instead of being overlapped in the vertical direction. In addition, since the clamped portion is guided by the clamping portion, the work is facilitated.

According to the connecting structure of the sole plates of claim 3 , the retaining projection prevents the portion to be held from slipping out of the holding portion.

FIG. 4 is a perspective view of a state in which a plurality of sole plates of the present disclosure are connected to each other; Perspective view of sole plate Underside perspective view of floor plate Enlarged perspective view of bottom side of floor plate Perspective view of the state in which two sole plates are arranged Perspective view of a state in which two sole plates are connected Enlarged perspective view around the first recess Enlarged perspective view around the first protrusion Enlarged view of the connection state between sole plates Perspective view of the first parting material Bottom side perspective view of the first parting material Perspective view of the second parting material Bottom side perspective view of the second parting material

Hereinafter, based on FIGS. 1 to 13, a floor board 10 to which the "connection structure between floor boards" of the present disclosure is applied will be described. The floor board 10 shown in FIG. 1 is a plate-shaped member made of synthetic resin, and as shown in the figure, a plurality of floor boards 10 are arranged vertically and horizontally and connected to be used as a temporary passageway or a temporary floor.

As shown in FIGS. 2 and 3 , the floor board 10 has a flat ceiling wall 11 and a plurality of hanging walls hanging down from the ceiling wall 11 . As shown in FIG. 2, the ceiling wall 11 has an isosceles trapezoidal overhanging portion 12 extending laterally from a pair of opposing side portions 11A1 of an imaginary square 11A, and overhanging portions 12 to the remaining pair of opposing side portions 11A2. 12 and the shape which provided the notch 13 with substantially the same planar shape. As a result, the outer edge of the ceiling wall 11 is divided into a first opposing side 11E opposing in the longitudinal direction, a second opposing side 11F opposing in the lateral direction, and an obliquely inward longitudinal direction from the end of the first opposing side 11E. and a second inclined portion 11H connecting the end of the first inclined portion 11G and the end of the second opposing side 11F.

As shown in FIG. 3, on the lower surface of the ceiling wall 11, along the first opposing side 11E, a pair of first opposing drooping portions extending between the connecting portions of the first inclined portion 11G and the second inclined portion 11H are provided. A wall 20 and a second opposing hanging wall 21 that hangs down from the second opposing side 11F and its extension line and connects the positions near the ends of the pair of first opposing hanging walls 20 are formed. Both ends of the first opposing hanging wall 20 are slightly upwardly slanted. Inner reinforcing ribs 22 having the same height as the first and second hanging walls 20 and 21 are formed inside the first and second hanging walls 20 and 21 in a grid pattern.

Outside the second opposing hanging wall 21, a middle stage wall 14 is provided that protrudes outward from the middle portion of the second opposing hanging wall 21 in the height direction. As shown in FIG. 2, the middle wall 14 has an isosceles trapezoidal shape substantially identical to that of the notch 13, and has an upper bottom portion 14A connected to the second opposing side 11F of the ceiling wall 11 by a second opposing hanging wall 21. , a pair of inclined portions 14B extending parallel to the second inclined portion 11H of the ceiling wall 11, and a lower bottom portion 14C extending parallel to the upper bottom portion 14A and communicating between the ends of the inclined portions 14B. The second inclined portion 11H of the ceiling wall 11 and the inclined portion 14B of the intermediate wall 14 are connected by a connecting wall 15 extending in the vertical direction. Further, as shown in FIG. 3, on the lower surface of the middle wall 14, a middle hanging wall 23 extending along the bottom 14C is formed near the bottom 14C. The lower end surface of the middle hanging wall 23 is flush with the lower end surface of the second opposing hanging wall 21 .

The middle wall 14, the middle hanging wall 23, and the like constitute the first thin plate portion 30 in the claims. In addition, as shown in FIG. 4 , a plurality of connecting ribs 24 communicate between the second opposing hanging wall 21 and the intermediate hanging wall 23 . The connecting ribs 24 include a high connecting rib 24A whose lower end face is flush with the second opposing hanging wall 21 and the intermediate hanging wall 23, and a low connecting rib 24B whose lower end face is located above the high connecting rib 24A. is provided. A triangular rib 25 communicates between the middle hanging wall 23 and the outer edge of the middle wall 14 . The end face of the triangular rib 25 is flush with the end of the first opposing hanging wall 20 , so that the outer edge of the first thin plate portion 30 is provided with an upward inclined portion 31 .

As shown in FIG. 3, from the outer edge of the projecting portion 12, that is, from the first opposing side 11E of the ceiling wall 11 and the first inclined portion 11G, about half of the first and second hanging walls 20 and 21 , depending from which is a ledge depending wall 26 having a height of . The projecting portion 12, the projecting portion hanging wall 26, and the like constitute the second thin plate portion 40 in the claims. The projecting portion hanging wall 26 and the first opposing hanging wall 20 are connected by a connecting rib 27 extending flush with the projecting portion hanging wall 26 .

Due to the above shape, the sole plate 10 is a first thin plate portion formed by recessing a pair of opposing side portions (see symbol 11A2 in FIG. 2) into a square plate member (see symbol 11A in FIG. 2). 30 and a second thin plate portion 40 projecting laterally from the remaining pair of opposing side portions (see reference numeral 11A1 in FIG. 2).

As shown in FIG. 2, the bottom plate 10 has right-angled triangular tiered projections 11T formed at the four corners of the ceiling wall 11. When the floor plates 10 are stacked, the lower tiered projections 11T are formed. abuts against the second opposing hanging wall 21 and the first opposing hanging wall 20 on the lower surface of the upper floor plate 10, stabilizing the stacking.

5 and 6, when the two sole plates 10 are arranged so that the first thin plate portion 30 of one sole plate 10 and the second thin plate portion 40 of the other sole plate 10 face each other, The second thin plate portion 40 of the bottom plate 10 overlaps the first thin plate portion 30 of one of the bottom plates 10 from above, and the ceiling walls 11 are flush with each other. Hereinafter, the direction in which the overlapping first thin plate portion 30 and the second thin plate portion 40 extend will be referred to as a "first horizontal direction H1", and the direction in which the sole plates 10 are aligned will be referred to as a "second horizontal direction H2".

Adjacent sole plates 10 are connected by engaging the first and second thin plate portions 30 and 40, which overlap vertically. Details will be described below.

As shown in FIG. 4, the first thin plate portion 30 of the sole plate 10 is formed with a first concave portion 32 and a second concave portion 35 recessed inward from the outer edge. As shown in FIG. 7, the first recessed portion 32 includes an opening-side inclined portion 32A (corresponding to the "inclined portion" in the claims) extending from the edge of the opening so as to approach each other toward the back side, and an opening. The end of the side sloping portion 32A is folded back outward to extend to the back side, and the ends of the back side sloping portion 32B are connected to each other and extend parallel to the outer edge of the first thin plate portion 30. 32C of back|inner side straight parts are provided in an inner surface. A triangular through hole 33 is formed in a triangular portion formed by the opening-side inclined portion 32A and the back-side inclined portion 32B. As a result, the first thin plate portion 30 is formed with a sandwiching portion 34 having a pair of bent portions 34A having a "<" shape, the center portions of which are adjacent to each other. It has become. Both ends of the bent portion 34A are connected to the connecting rib 24 and the triangular rib 25 of the first thin plate portion 30, thereby forming the holding portion 34 into a closed ring. In addition, as shown in FIG. 4, the outer end of the bent portion 34A is also inclined upward.

As shown in FIG. 4, the second recess 35 includes an opening-side recess 35A extending from the opening edge toward the back in a direction perpendicular to the outer edge of the first thin plate portion 30, and a stepped shape extending from the opening-side recess 35A toward the back. and an extension portion 35B extended to .

As shown in FIG. 2, second recesses 35 are provided at a total of three locations, one at the center in the longitudinal direction of the first thin plate portion 30 and one near the ends, and between the second recesses 35 (two locations in total), A first recess 32 is provided. Further, as shown in FIG. 4 , the far side end portions of the first recess 32 and the second recess 35 are arranged at a position near the second opposing hanging wall 21 . Further, among the above-described connecting ribs 24, the high communication rib 24A is arranged at a position functioning as the inner wall of the through hole 33 and the inner wall of the second recess 35, and the low communication rib 24B is arranged at the position where the high communication rib 24A between each other or between the high communication rib 24A and the first opposing depending wall 20.

As shown in FIG. 3 , the second thin plate portion 40 is provided with a first projecting portion 41 or a second projecting portion 45 at positions corresponding to the first recessed portion 32 and the second recessed portion 35 of the first thin plate portion 30 . ing. As shown in FIG. 8, the first projecting portion 41 (corresponding to the "clamped portion" in the claims) extends from the first opposing hanging wall 20 to the outer edge side of the second thin plate portion 40 in the first opposing direction. It has a rectangular plate portion 41A that extends at the same height as the hanging wall 20 and an inclined plate portion 41B that communicates between the rectangular plate portion 41A and the projecting portion hanging wall 26 . The lower surface of the inclined plate portion 41B includes a horizontal surface 41B1 rising in a stepped manner from the lower end surface of the rectangular plate portion 41A, and an inclined surface 41B2 connecting the end of the horizontal surface 41B1 and the lower end surface of the projecting portion hanging wall 26. , consisting of In addition, on both side surfaces of the rectangular plate portion 41A of the first projecting portion 41, a ridge 42 extending in the vertical direction (“retaining projection” in the claims) is provided near the end portion of the inclined plate portion 41B side. ) are formed.

As shown in FIG. 4, the second projecting portion 45 has a rectangular plate portion 45A that has the same shape as the rectangular plate portion 41A of the first projecting portion 41, and an engaging portion 46 that is U-shaped in plan view. . The engaging portion 46 extends along the outer edge of the second thin plate portion 40 and includes a first plate portion 46A connected to the end portions of the rectangular plate portion 45A, and the projecting portion hanging wall 26 extending from both end portions of the first plate portion 46A. and a second plate portion 46B extending to the second plate portion 46B. The bottom surface of the first plate portion 46A extends horizontally above the bottom surface of the rectangular plate portion 45A. Cant contact.

As shown in FIG. 3, the second thin plate portion 40 is provided with second projections 45 at positions near both ends in the longitudinal direction (two locations in total), and three first projections 41 are arranged therebetween. is provided.

Then, when the second thin plate portion 40 of the other sole plate 10 is superimposed on the first thin plate portion 30 of the one sole plate 10, as shown in FIG. The first protrusions 41 at both ends are received in the first recesses 32 of one of the sole plates 10 , and the second protrusions 45 of the other sole plate 10 are received in the second recesses 35 of the one sole plate 10 .

When the first projecting portion 41 is received in the first recess 32, the rectangular plate portion 41A of the first projecting portion 41 is clamped by the clamping portion 34 of the first recess 32 in the first horizontal direction H1. The interval between the bent portions 34A in the clamping portion 34 is equal to or less than the plate thickness of the rectangular plate portion 41A of the first projecting portion 41, and the rectangular plate portion 41A and the clamping portion 34 are press-fitted by elastic deformation. . In addition, since the protrusion 42 of the first projecting portion 41 contacts the bent portion 34A of the holding portion 34 from the inner side of the first recess 32, the sole plates 10 are prevented from separating from each other in the second horizontal direction H2. .

Further, when the second projecting portion 45 is received in the second recess 35, the engaging portion 46 of the second projecting portion 45 is received in the extended portion 35B of the second recess 35, and the first plate portion of the engaging portion 46 is received. 46A faces the stepped surface of the extended portion 35B, and the second plate portion 46B of the engaging portion 46 faces the inner surface of the extended portion 35B. It becomes a stopper in the direction H2. In the present embodiment, the central first projecting portion 41 is received in the second recessed portion 35, and therefore does not press-fit and does not function as a retainer in the second horizontal direction H2.

10 and 11 show the first parting member 50. FIG. The first parting member 50 has a strip-like shape, and approximately half in the width direction serves as a slope portion 56 inclined downward. A plurality of anti-slip projections 56S extending in the longitudinal direction are formed on the slope portion 56 so as to be arranged vertically and horizontally. A first thin plate portion 51 having substantially the same shape as the first thin plate portion 30 of the floor plate 10 is provided on the other half of the first parting member 50 . In the first thin plate portion 51 of the first parting member 50, second recesses 55 are arranged at positions near both ends in the longitudinal direction (two places in total), and three first recesses 52 are provided therebetween. there is

The second parting member 60 is shown in FIGS. 12 and 13 . Similarly to the first parting member 50, the second parting member 60 also has a strip-like shape, and approximately half in the width direction is inclined downward to form a slope portion 66 having anti-slip projections 66S formed thereon. The second parting member 60 is provided with a second thin plate portion 61 having substantially the same shape as the second thin plate portion 40 of the floor plate 10 . As shown in FIG. 13 , the second thin plate portion 61 is provided with second projecting portions 63 at a total of three locations, one in the center in the longitudinal direction and the other at both ends. A first projecting portion 62 is provided between them (two locations in total). The lower surface of the first projecting portion 62 of the second parting member 60 extends horizontally from the center side in the width direction to the outer edge side, then slopes upward, and further horizontally extends slightly to connect to the outer edge. Further, the second projecting portion 63 of the second parting member 60 has a rectangular plate portion 63A and an annular projecting portion 64 having a rectangular shape in plan view.

As shown in FIG. 1, the first parting member 50 and the second parting member 60 are attached to the first thin plate portion 30 and the second thin plate portion 40 of the sole plate 10 positioned at the outer edge of the group of the paved sole plates 10, and are temporarily installed. Slope the outer edge of aisles and temporary floors. Further, the first parting member 50 and the second parting member 60 also correspond to the "sole board" in the claims.

The configuration of the floor plate 10 of the present embodiment is as described above. Next, the effects of the sole plate 10 will be described. The sole plate 10 is used in connection with another sole plate 10.例文帳に追加The connection between the sole plates 10 is performed as follows. That is, one sole plate 10 is placed on the ground or the floor, and the second thin plate portion 40 of the other sole plate 10 is superimposed on the first thin plate portion 30 of the sole plate 10 from above and pushed. As a result, the second projecting portion 45 of the second thin plate portion 40 is received in the second recessed portion 35 of the first thin plate portion 30 and engaged with the recesses and protrusions, and the first projecting portion 41 of the second thin plate portion 40 is moved to the first position. It is fitted into the holding portion 34 of the first recess 32 in the thin plate portion 30 .

By the way, when connecting the floorboards, it is conceivable to adopt a configuration in which parts of the floorboards are engaged with each other in an uneven manner. In this case, it is necessary to provide a large clearance in consideration of dimensional changes due to expansion and contraction due to changes in temperature and contraction over time.

On the other hand, according to the sole plate 10 of the present embodiment, the first projecting portion 62 is fitted into the clamping portion 34 of the first recess portion 32 and press-fitted, so that the sole plates 10 are prevented from rattling each other. be In addition, since the first projecting portion 41 extends in the direction in which the sole plates 10 are arranged (second horizontal direction H2), the position of the holding portion 34 relative to the first projecting portion 41 changes in the second horizontal direction H2 due to expansion and contraction. Even if the sole plates 10 are slightly displaced, the sole plates 10 can be displaced while maintaining the engaged state, and the sole plates 10 are prevented from expanding and pressing against each other to float up, or contracting and separating from each other, resulting in disconnection. be

In addition, since the holding portion 34 has a closed ring shape and the through hole 33 is formed inside, it is likely to be elastically deformed, and the first projecting portion 41 and the holding portion 34 are slightly displaced in the first horizontal direction H1. Engagement is possible even if it deviates. Moreover, since the holding portion 34 has a closed ring shape, it can be made more difficult to break than a cantilever beam.

Moreover, since the ridges 42 provided on both side surfaces of the first projecting portion 41 are arranged on the inner side of the portion sandwiched by the sandwiching portion 34, the sole plates 10 are spaced apart from each other in the second horizontal direction H2. , is prevented from being disconnected. Furthermore, in the present embodiment, the second projecting portion 45 is received in the second recess 35, and the engaging portion 46 of the second projecting portion 45 is engaged with the extended portion 35B of the second recess 35. Even if the strip 42 spreads the holding part 34 and slips out, the sole plates 10 are prevented from being separated from each other in the second horizontal direction H2. The second projecting portion 45 and the second recessed portion 35 also function as retainers in the first horizontal direction H1.

By the way, it is conceivable to insert the first thin plate portion 30 of another sole plate 10 below the second thin plate portion 40 of the already placed sole plate 10 . In that case, since the lower surface of the entire outer edge of the first thin plate portion 30 and the outer edge of the first projecting portion 41 and the second projecting portion 45 of the second thin plate portion 40 are inclined, is tilted and the outer edge of the first thin plate portion 30 is inserted below the second thin plate portion 40 of the bottom plate 10 placed thereon, and the bottom plates 10 are connected to each other by pushing the other bottom plate 10 inward and making it horizontal. can be made Here, in the present embodiment, since the opening-side inclined portion 32A is provided outside the holding portion 34, the holding portion 34 of the floor plate 10 to be inserted is positioned against the first protruding portion 41 of the floor plate 10 placed thereon. to the correct position.

Further, when a plurality of sole plates 10 are connected vertically and horizontally, the first thin plate portion 30 of the inner sole plate 10 is pressed from above by the second thin plate portion 40 of the adjacent sole plate 10, and the sole plate 10 is also the first thin plate. The portion 30 is pressed from above by the second thin plate portion 40 of another bottom plate 10 . As a result, the inner sole plate 10 is pressed against each other from the upper side and is difficult to come off.

On the other hand, the sole plate 10 positioned at the outer edge and the parting members 50 and 60 attached to the sole plate 10 positioned at the outer edge are easily disconnected because there are few surrounding sole plates 10 that press against each other or they are connected only at one side. . On the other hand, in the present embodiment, as described above, the floor plate 10 and the parting members 50 and 60 are less likely to rattle due to the press-fit engagement. , 60 are also prevented from being deviated. Moreover, between the sole plates 10, the first projecting portion 41 at the center of the second thin plate portion 40 is received in the second recess portion 35 at the center of the first thin plate portion 30, so that there is no press-fit engagement and the second horizontal The first parting member 50 is provided with a first recessed portion 52 in the center of the first thin plate portion 51 where it does not function as a stopper in the direction H2. It engages and the connection becomes stronger. The second parting member 60 is also provided with a second projecting portion 63 in the center of the second thin plate portion 61, which engages with the second recessed portion 35 of the first thin plate portion 30 of the sole plate 10 to provide stronger connection. become something.

[Other embodiments]
(1) In the above embodiment, the holding portion 34 of the first projecting portion 41 and the holding portion 34 has a closed ring shape. Both the projecting portion 41 and the clamping portion 34 may have a closed ring shape. For example, the first projecting portion 41 may have a rectangular frame shape. In addition, neither of them may be a closed ring.

(2) In the above-described embodiment, in addition to the press-fitting engagement between the first projecting portion 41 and the holding portion 34, the second projecting portion 45 and the second recessed portion 35 are engaged in concave-convex engagement. The second projecting portion 45 and the second recessed portion 35 may not be provided. Even in this case, it is retained in the second horizontal direction H2 by press-fit engagement between the first projecting portion 41 and the holding portion 34 and engagement between the protrusion 42 of the first projecting portion 41 and the holding portion 34. .

(3) The protrusion 42 of the first projecting portion 41 may not be provided. Even in this case, the engagement between the second protrusion 45 and the second recess 35 prevents the second protrusion 45 from coming off in the second horizontal direction H2. In addition, the structure which does not have both the protrusion 42 of the 1st protrusion part 41 and the uneven|corrugated engagement of the 2nd protrusion part 45 and the 2nd recessed part 35 may be sufficient.

(4) In the above embodiment, the holding portions 34 and 54 are provided on the lower first thin plate portions 30 and 51, and the first projecting portions 41 and 62 are provided on the upper second thin plate portions 40 and 61. was provided, but it may be reversed.

(5) In the above embodiment, the first thin plate portion 30 is formed by recessing the outer edge of the plate member downward, but may be formed by recessing upward. In this case, the second thin plate portion 40 is configured to overlap the first thin plate portion 30 of the adjacent bottom plate 10 from below.

REFERENCE SIGNS LIST 10 sole plate 11 ceiling wall 12 overhang 13 notch 14 middle wall 30 first thin plate portion 32 first concave portion 32A opening side inclined portion (inclined portion)
34 clamping portion 35 second recess 40 second thin plate portion 41 first projecting portion (clamped portion)
42 Protrusions (retaining protrusions)
45 second protrusion

Claims (3)

A connection structure between a plurality of floor boards arranged vertically and horizontally and connected,
A first thin plate portion formed by recessing the edge of one of the adjacent sole plates upward or downward, and a second thin plate portion provided at the edge of the other sole plate and overlapping the first thin plate portion in the vertical direction. and in the connection structure between the floor plates,
One of the first thin plate portion and the second thin plate portion is provided with a pinched portion having a pair of side surfaces extending in a second direction orthogonal to the first direction in which the edge portion extends, and the first thin plate portion and the second thin plate portion are provided with a sandwiching portion sandwiching the portion to be sandwiched in the first direction,
The clamped portion and the clamping portion are press-fitted together,
At least one of the part to be held and the part to be held is a connection structure between sole plates, in which at least one of the parts is in a closed ring shape. 2. The connecting structure of sole plates according to claim 1, wherein the holding portion has an inclined portion on an outer surface thereof for guiding the portion to be held which is pushed in from the side. 3. The connecting structure of sole plates according to claim 1, wherein the side surface of the clamped portion is formed with a retainer protrusion engageable with the clamping portion.

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