JP4777950B2 - Assembly or yuka structure for gymnastics - Google Patents

Description

  The present invention relates to an assembly type yuka structure for floor exercises. More specifically, an assembly-type yuka structure that constitutes a performance area of a predetermined area for rhythmic gymnastics, etc. by laying and uniting many unit panel boards on the base floor surface of a building such as a gymnasium Related to things.

The present inventor has previously proposed a structure as shown in Patent Documents 1 and 2 below as a yuka structure for floor gymnastics that requires high strength and high elasticity. Has been used a lot.
Japanese Patent Laid-Open No. 61-13980 Japanese Utility Model Publication No. 61-14081

  The Yuka structures according to these prior proposals are arranged by arranging a large number of rectangular unit panel plates such as plywood with a large number of elastic leg members attached to the lower surface in a vertical and horizontal arrangement, and integrally and firmly connecting them. A substrate with a required area is constructed, an elastic mat made of resin foam is laid on the upper surface, and a fiber rug made of cut pile carpet is laid on top of it to provide the appropriate elasticity for the vertical load. It provides a surface for gymnastics.

  On the other hand, various relatively mild yuka gymnastics exercises such as rhythmic gymnastics and aerobic gymnastics, which were conventionally performed on the base floor of a building frame such as a normal gymnasium floor, have recently been difficult. The performance surface is configured so that gymnasts will not be injured, and gymnasts will not be injured. It has been strongly demanded that the entire surface of the scab surface has uniform elasticity over the entire surface and maintains a high degree of flatness. Moreover, this kind of yuka structure must be able to cope with the ease of relocation as the competition venue and practice place move. Therefore, the assembling work can be easily performed while saving labor in a short time, and the yuka board portion made of the panel assembly must have the required robustness in the assembled state.

  However, the conventional yuka structures shown in Patent Documents 1 and 2 are not suitable for rhythmic gymnastics in terms of overall uniformity of elasticity, flatness retention, and the like. Due to the large number of points, not only the manufacturing process, but also the assembly work at the competition venue requires not only a lot of time and labor, but it is too expensive to be adopted as general school equipment. there were.

  The present invention is outstanding under the background of the prior art as described above, in terms of various characteristics such as ease of disassembly and reassembly accompanying transfer, strength after assembly, overall flatness, and overall uniformity of elasticity. An object of the present invention is to provide an assembly-type yuka structure for gymnastics that has performance and can be manufactured and provided at a relatively low cost.

  The present invention presents the following configurations as means for solving the above problems.

That is, the assembling type yuka structure for gymnastics according to the present invention has a large number of rectangular unit panel boards, each having a plurality of elastic supporting leg members fixedly distributed on the lower surface, vertically and horizontally on the base floor surface of the building. In the assembly type yuka structure for gymnastics, in which a planar yuka board of the required area is formed which is integrated and provides a gymnastics competition surface by connecting the adjacent unit panel boards to each other. ,
While the corner portions of the four unit panel plates gathered together in a butting manner, block-shaped corner connecting members are arranged, and the corner portions are connected to each other by the corner connecting members,
A bar-shaped side edge connecting member having an H-shaped cross section is disposed along the adjacent side edge of the adjacent unit panel plate, and the adjacent side edges extend over the entire length by the side edge connecting member. Connected,
The corner connecting member includes a hard upper support plate that supports a corner portion of the four unit panel plates, and an elastic support leg member fixed to the lower surface thereof.
The upper support plate is integrally provided with four locking projections that fit into locking holes provided at the corners of each unit panel plate, and a position between the locking projections. 4 are provided with shallow grooves for receiving the lower surface side flanges of the side edge connecting members in a cross-sectional shape in plan view, and four upper bulges having the respective locking projections on the upper surfaces by the remaining portions excluding the shallow grooves. On the other hand, the pedestal part for protruding panel support is formed,
The side edge connecting members are vertically and horizontally latticed by fitting the side edges of the long side and the short side of the adjacent unit panel plates in U-shaped fitting recesses positioned back to back on the left and right sides. And one side edge connecting member arranged in the vertical or horizontal direction is arranged so as to pass over the corner connecting member in the middle part of the length thereof. It is a feature.

  It is desirable that the elastic supporting leg members on the lower surface of the unit panel plate be provided in a higher density arrangement than the intermediate region in the side edge adjacent portion along the four peripheral side edges of the unit panel plate. For this density difference, it is preferable to set the arrangement pitch dimension of the elastic support leg members at the side edge part to about 50 to 80% with respect to the arrangement pitch dimension of the intermediate area part.

  As a preferred embodiment of the above-mentioned yuka structure, each unit panel plate is provided with a notch step portion having a width and a depth corresponding to the upper surface side flange of the side edge connecting member on the upper surface of the side edge portion of the four circumferences. The upper surface of each unit panel plate and the upper surface of the side edge connecting member are positioned in substantially the same plane.

  In addition, the corner connecting member is provided with an inclined guide surface having an upward slope toward the center at each tip of the cross-shaped shallow groove on the upper surface thereof.

  Further, the elastic support leg member on the lower surface of the unit panel plate and the elastic support leg member on the lower surface of the corner connecting member are made of a polyolefin resin foam having a foaming ratio of 10 to 20 times, particularly preferably 15 to 16 times. It is desirable to do.

  In addition, an upper cushion mat made of a synthetic resin foam and a pile carpet are sequentially laminated on the yuka substrate on which the unit panel plates are laid out to constitute a gymnastics assembly yuka structure.

  In the assembly-type yuka structure for gymnastics according to the present invention, the adjacent unit panel plates are connected to each other by a fitting method using a side edge connecting member having an H-shaped cross section between adjacent side edges. On the other hand, at the intersection corner where the corners of the four unit panel plates gathered together, via a corner connecting member having an engaging structure with locking protrusions and locking holes. Since the horizontal movement is constrained in a mutually constrained state, the entire yuka board made up of the assembly of unit panel plates can be renewed without using a separate clamping device as in the past. It can be in a good integrated state suitable for gymnastics. That is, it is possible to prevent the adjacent unit panels from moving relative to each other in the vertical direction or the horizontal direction.

  Further, the side edge connecting member is a bar-shaped body having an H-shaped cross section, and the connecting member is set by simply inserting it between the adjacent unit panel plates from one end side. The edge can be easily connected to the vertically restricted state.

  Moreover, the adjacent unit panel plates are supported and supported by a single corner connecting member at the crossing corner where the four corners gather, and the bar-like side edge connecting member is the corner. By being arranged in such a manner that it passes over the connecting member, even if an offset load is applied to the crossing corner, there is a temporary step between the four corners. It does not occur and good flatness can be maintained. This can contribute to the improvement of safety against Jim Nast, as well as the elimination of obstacle factors when performing a highly difficult performance.

  In addition, since the corner connecting member is provided with a shallow groove on the upper surface, and the lower surface side flange of the side edge connecting member is received by the corner connecting member, the connecting member is connected between adjacent unit panel plates. It is possible to avoid the tip of the connecting member from abutting against the peripheral side surface of the corner connecting member at the time of the connection setting operation performed by being inserted into the corner. That is, since the tip of the flange on the lower surface side of the connecting member enters the shallow groove portion, insertion setting of the connecting member can be performed without resistance. Furthermore, when an inclined guide surface having an upward slope toward the center is provided at the tip of the shallow groove, the tip of the lower surface side flange is guided by the inclined guide and the shallow groove Therefore, the connecting member can be easily inserted and set.

  In addition, the elastic support leg member on the lower surface of the unit panel plate is provided in a higher density arrangement than the intermediate region in the side edge adjacent portion along the four peripheral side edges of the unit panel plate. Even when a large load is applied to a part of the peripheral area of the unit panel plate, there is no step or inclination between adjacent unit panel plates, and the entire flat substrate has good flatness and uniform elasticity. Repulsion can be maintained.

  Furthermore, a notch step having a width and a depth corresponding to the upper surface side flange of the side edge connecting member is provided on the upper surface of the four side edge portions of each unit panel plate, and the upper surface and the side edge of each unit panel plate are provided. Since the upper surface of the connecting member for part is positioned substantially in the same plane, the overall flatness and flatness of the yuka substrate can often be maintained satisfactorily.

  In addition, the elastic support leg member fixed to the lower surface of the unit panel plate and the corner connecting member is made of polyolefin resin foam, so that it is suitable for rhythmic gymnastics operation on the floor. It is possible to have a strong resilience. In addition, it is possible to achieve both the opposite properties of good durability and large and flexible elasticity, and it does not cause a resonance phenomenon as in the case of a steel spring and does not cause a feeling of bottoming out.

  Also, an upper cushion mat made of a synthetic resin foam on a yuka substrate made of an assembly of unit panel boards, and a gymnastic assembly yuka structure formed by sequentially laminating a pile carpet, the cushion mat, the pile carpet, Can collaboratively absorb the external force when Jim Nast lands, and buffer the impact force that the body receives during a fall, and also prevent injuries such as scratches and ensure safety.

  Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a plan view of the assembling-type yuka structure (1) constituting the gymnastic performance surface as viewed from the upper surface side, and is partially cut away.

  This yuka structure (1) is laid on a yuka substrate (10) composed of a large number of unit floor panel boards (2) arranged in a vertical and horizontal arrangement and an assembly of the unit floor panel boards (2). The upper cushion mat (3) made of the synthetic resin foam and the cut pile carpet (4) are the main constituent members.

  A unit panel board (2) consists of a rectangular wooden plywood, as shown in FIG.2 and FIG.3. The size is 2400 mm × 1200 mm × 12 mm, for example, for a rhythmic gymnastics floor, and by using 72 pieces of this, a 14.4 m square square substrate (10) is formed.

  A large number of elastic support leg members (5) are fixed to the lower surface of the unit panel plate (2) made of plywood as shown in FIGS. The elastic supporting leg members (5) have a short prismatic shape of, for example, 60 mm × 60 mm × 30 mm (height), and 58 pieces are attached per unit panel plate (2). Moreover, as shown in FIG. 2, the arrangement is in a dispersed state, and is attached at a higher density arrangement than the intermediate region in the side edge adjacent portion along the four peripheral side edges of the unit panel plate (2). . Specifically, the unit panel plate (2) is arranged at a pitch in the range of 170 to 190 mm at the position near the side edge on the long side, and at a pitch in the range of 140 to 150 mm at the position near the side edge on the short side. In the middle region, the pitch is set in the range of 270 to 380 mm.

  Moreover, each unit panel board (2) has the engagement hole (6) set to the diameter of about 11 mm in the four corner parts so that it may be understood clearly in FIG. And it has a strip | belt-shaped notch step part (7) in a peripheral part upper surface. This notch step part (7) is set to the width and depth corresponding to the upper surface side flange (30b) of the side edge part connecting member (30) described later. Specifically, for example, the width is set to 12 mm and the depth is set to 2 mm.

  In the yuka substrate (10) composed of an array of unit panel plates (2), the corner portions of the four unit panel plates (2) are gathered in a butting manner at the crossing corners. The corner connecting member (20) is disposed on the lower surface side, whereby the corner portion is supported from the lower surface side and is connected so as not to cause a relative lateral movement relative to each other.

  As shown in FIGS. 4 and 5, the corner connecting member (20) includes a square-shaped hard synthetic resin-made upper support plate (21), and elastic support leg members (25) fixed to the lower surface thereof. Consists of. The upper support plate (21) has four locking projections (with corresponding diameters and heights) that fit into the engagement holes (6) of the unit panel plate (2) on the upper surface in the vicinity of the four corners. 22) is integrally projected. Then, avoiding the four corner regions where the locking projections (22) exist, a wide shallow groove (23) is formed in a cross shape in plan view on the upper surface, and the remaining portion excluding the shallow groove (23) Four upwardly bulging panel support bases (24) having the locking protrusions (22) on the upper surface are formed. Furthermore, inclined guide surfaces (23a) that are inclined upward in the central direction are provided at the respective ends of the shallow groove (23), that is, both ends of the cross-shaped vertical groove portion and both ends of the lateral groove portion. It has been.

  The side edge connecting member (30) for connecting the side edge portions of the adjacent unit panel plates (2) and (2) is an H-shaped section made of hard synthetic resin, and has a long bar shape. In the illustrated embodiment, for example, a total of 131 pieces are used. This connecting member (30) has a web (30a) as a vertical rail at the center in the cross section, and a pair of flanges (30b) (30b) are provided symmetrically vertically at both ends. A pair of U-shaped fitting recesses that are H-shaped in section and into which the side edges of the unit panel plate (2) are fitted between the upper and lower flanges (30b) (30b) with the web (30a) interposed therebetween. The places (31) and (31) are formed back to back. The connecting member (30) has, for example, an overall width of the flange (30b) of 25 mm, an overall thickness (height) of 14.3 mm, a thickness of each part of 2.0 mm, and a height of the fitting recess (31). It is formed to 10.3 mm. The connecting member (30) may be made of metal such as aluminum.

  The cross-shaped shallow groove (23) provided on the upper surface of the upper support plate (20) of the corner connecting member (20) receives the double-sided flange (30b) of the side edge connecting member (30). It is. Accordingly, the flange (30b) has a width and depth that are slightly larger than the width and thickness. Specifically, the width is set to 30 mm and the depth is set to 2.5 mm.

  The yuka substrate (10) comprising an array of unit panel plates (2) has two corners of only two adjacent unit panel plates (2) and (2) abutted on each side of its periphery. Creates a corner butt. In the embodiment shown in FIG. 1, these two corner butting portions are 38 locations, 11 locations on the left and right sides of the page, and 5 locations on the top and bottom of the page.

  In these corner butting portions, the two corner portions of the adjacent unit panel plates (2) and (2) are connected using a half-cut connecting piece (20/2) shown in FIG. The half-cut connecting piece (20/2) is obtained by dividing the corner connecting member (20) into two at the center and left and right, and has two locking projections (22) and (22) on the upper surface. These locking projections are fitted into the corresponding locking holes (6) and (6) at the corners of the unit panel plates (2) and (2).

  Furthermore, one corner on the outside of the unit panel plate (2) located at the four corners of the yuka substrate (10) shown in FIG. 1 is for the four corners as shown in FIG. The connecting piece (20/4) is supported from the lower surface side. The four corner connecting pieces (20/4) are formed by dividing the corner connecting member (20) into four parts vertically and horizontally at the center, and only one locking protrusion (22) on the upper surface. Are fitted in the corresponding locking holes (6) on the unit panel plate (2) side, and are attached to the positioning state.

  However, it is not always necessary to manufacture and use the half-cut connection piece (20/2) and the four-corner connection piece (20/4). Of the four locking projections (22) on the upper surface of the normal corner connecting member (20), the other two are cut off and removed, or the other three are removed, leaving only one. The processed corner connecting member (not shown) that has been cut and removed may be used for connecting the two corners and for supporting the four corners of the yuka substrate (10). In this case, since the lower surface of each corner part is supported by the whole elastic support leg member (25) of the connecting member for corners (20), it is possible to prevent the corner part from being excessively submerged. It is advantageous in that it can be achieved.

  Note that the elastic support leg member (5) on the lower surface of the unit panel plate (2), the elastic support leg member (25) on the lower surface of the corner connecting member (20), and the entire upper surface of the yuka substrate (10) are laid. Each of the upper cushion mats (3) is made of a polyurethane resin foam having an expansion ratio of 15 to 16 times.

  The above-described gymnastics yuka structure (1) according to the present invention is provided with a unit panel board (2) while arranging corner connecting members (20) as appropriate on the base floor surface (F) of the building. Are sequentially arranged, side edge connecting members (30) are sequentially inserted between the side edge portions of the adjacent unit panel plates (2) and (2), and further, the half cut connecting piece (20/2) and the four corner connecting portions are connected. It is assembled by arranging the members (20/4).

As shown in FIG. 12, the assembly procedure is as follows. First, the unit panel plate (2) located at one corner of the yuka substrate (10) is adjacent to the long side of the unit panel plate (2). After arranging the other unit panel plate (2), first, in the first step shown by reference numeral (S ₁ ) in FIG. 12, the long side edge connecting member (30A) is connected to the two adjacent panel members. Between the unit panel plates (2) and (2), the both side edges are inserted into the fitting recesses (31) and (31) while being inserted laterally from one end and set. Next, two new unit panel plates that are adjacent to each other at the side edge on the short side are placed on the two unit panel plates (2) and (2), and in the second step indicated by reference numeral (S ₂ ). The scale side edge connecting member (30B) is inserted and arranged vertically. At this time, the connecting member (30B) is set so as to pass over the corner connecting member (20) so that the intermediate portion in the length direction is positioned above the corner connecting member (20). To do.

  During the insertion, the shallow groove (23) on the upper surface of the corner connecting member (20) receives the lower surface side flange (30b) of the connecting member (30). Therefore, the insertion-side tip of the connecting member (30) does not hit the peripheral edge of the upper support plate (21) of the corner connecting member (20), making it difficult to insert from one end.

  The inclined guide surface (23a) at each tip of the shallow groove (23) smoothly guides the tip of the lower surface side flange (30b) of the connecting member (30) toward the shallow groove (27). It is possible to reliably prevent the occurrence of difficult insertion situations.

  After repeating the above operation to finish the arrangement and connection of the first and second rows of unit panel plates (2), the subsequent third row, fourth row, and nth row of unit panel plates (2) are the same as above. In this procedure, the short side edge connecting member (30C) is inserted and arranged in the corresponding place sequentially in the middle or step (Sn), and the half connecting member (20 / 2) and the four corner connecting members (20/4) are arranged to complete the assembly of the yuka substrate (10).

  In this assembled state, the yuka substrate (10) of the yuka structure (1) has a block-shaped corner connecting member (20 at the intersection corner where the corners of the four unit panel plates (2) gather together. ) Is fixed in a state where the unit panel plates are prevented from moving relative to each other in the plane direction. It will be connected. On the other hand, the side edge portions of the adjacent unit panel plates (2) and (2) are fitted recesses in the side edge connecting member (30) whose side edge portion has an H-shaped cross section over the entire length. Since they are fitted in (31), they are connected to each other in a state where relative vertical movement is prevented. Therefore, as a result, all the unit panel plates (2) are connected in a state where they are not moved relative to each other in the vertical direction and the horizontal plane direction. ) Retains good integrity as a whole, and is excellent in flatness retention.

  Moreover, the said yuka structure based on this invention can disassemble | disassemble a yuka board | substrate (10) simply by the procedure completely reverse to the said assembly procedure. Therefore, it is also excellent in terms of ease of relocation.

It is the top view which notched and showed the whole assembly-type yuka structure for gymnastics concerning this invention. It is a bottom view of a unit panel board. It is a longitudinal cross-sectional view of a part of the yuka structure. FIG. 5 is an exploded perspective view showing a connection structure of crossing corner portions where corner portions of four unit panel plates are gathered. FIG. 5A is a plan view and FIG. 5B is a front view showing a corner connecting member. It is a top view of the crossing corner part where the corner parts of four unit panel boards gathered together. It is sectional drawing of the AA line of FIG. It is sectional drawing of the BB line of FIG. It is sectional drawing of the CC line of FIG. It is a perspective view of the decomposition | disassembly state which shows the connection structure of the part where only two corner parts of two unit panel boards are faced | matched. It is a perspective view of the decomposition | disassembly state which shows the support structure of the four corner parts of a yuka board | substrate. It is explanatory drawing of the assembly procedure of a Yuka board | substrate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Yuka structure 2 ... Unit panel board 3 ... Cushion mat 4 ... Pile carpet 5 ... Elastic support leg member 6 ... Locking hole 7 ... Notch step part
10 ... Yuka substrate
20… Corner connecting parts
21… Upper support plate
22 ... Locking protrusion
23 ... shallow groove
23a ... Inclined guide part
24 ... pedestal
25 ... Elastic support legs
30 ... Side edge connection member
30a ... Web
30b ... Flange
31 ... Mating recess

Claims (6)

A large number of rectangular unit panel plates with a large number of elastic supporting leg members fixed to the bottom surface in a distributed arrangement are arranged vertically and horizontally on the base floor surface of the building, and the adjacent unit panel plates are connected to each other. In a gymnastics assembly type yuka structure in which a flat yuka board having a required area integrated with the whole to provide a gymnastics competition surface is configured,
While the corner portions of the four unit panel plates gathered together in a butting manner, block-shaped corner connecting members are arranged, and the corner portions are connected to each other by the corner connecting members,
A bar-shaped side edge connecting member having an H-shaped cross section is disposed along the adjacent side edge of the adjacent unit panel plate, and the adjacent side edges extend over the entire length by the side edge connecting member. Connected,
The corner connecting member includes a hard upper support plate that supports a corner portion of the four unit panel plates, and an elastic support leg member fixed to the lower surface thereof.
The upper support plate is integrally provided with four locking projections that fit into locking holes provided at the corners of each unit panel plate, and a position between the locking projections. 4 are provided with shallow grooves for receiving the lower surface side flanges of the side edge connecting members in a cross-sectional shape in plan view, and four upper bulges having the respective locking projections on the upper surfaces by the remaining portions excluding the shallow grooves. On the other hand, the pedestal part for protruding panel support is formed,
The side edge connecting members are vertically and horizontally latticed by fitting the side edges of the long side and the short side of the adjacent unit panel plates in U-shaped fitting recesses positioned back to back on the left and right sides. And one side edge connecting member arranged in the vertical or horizontal direction is arranged so as to pass over the corner connecting member in the middle part of the length thereof. A characteristic gymnastic assembly type yuka structure.   2. The gymnastic assembly according to claim 1, wherein the elastic supporting leg members on the lower surface of the unit panel plate are provided in a higher density arrangement than the intermediate region in a portion adjacent to the side edge along the four-side edge of the unit panel plate. Formula Yuka structure.   Each unit panel plate is provided with a notch step portion having a width and a depth corresponding to the upper surface side flange of the side edge connecting member on the upper surface of the side edge portion of the four circumferences, and the upper surface of each unit panel plate and the side edge portion. The gymnastics assembly type yuka structure according to claim 1 or 2, wherein the upper surface of the connecting member is positioned in substantially the same plane.   The gymnastic exercise according to any one of claims 1 to 3, wherein the corner connecting member is provided with an inclined guide surface having an upward slope toward the center at each tip portion of the cross-shaped shallow groove on the upper surface thereof. Assembly type yuka structure.   The gymnastics assembly or structure according to any one of claims 1 to 4, wherein the elastic support leg member on the lower surface of the unit panel plate and the elastic support leg member on the lower surface of the corner connecting member are made of polyolefin resin foam. .   The gymnastics assembly yuka according to any one of claims 1 to 5, wherein an upper cushion mat made of a synthetic resin foam and a pile carpet are sequentially laminated on the yuka substrate on which unit panel boards are laid. Structure.

Images