JP7119646B2 - seat support structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a structure for supporting seats provided in, for example, a stadium.

As a specific example of a structure for installing a large number of seats in a stadium or the like, as disclosed in the following patent document, legs that serve as supports are fixed to a stepped floor that serves as a base, and the legs extend in the width direction. For example, a support rail (or beam) is placed horizontally and the seats are arranged along the support rail.

In a large-scale stadium or the like, the number of seats inevitably increases, and the support rails for supporting those seats also become long. A long support rail is constructed by connecting a plurality of horizontal members extending in a predetermined direction.

The horizontal member is generally produced by extruding a metal material such as an aluminum alloy and cutting it to an appropriate length. Therefore, the edge where the outer peripheral surface and the end surface of the horizontal member intersect becomes sharp. The support rails are then located under the seat, within reach of the occupant's hands and feet. Therefore, there is a concern that the edges appearing at the joints between the horizontal members may be touched by a person's hand or clothes, bags, etc. may be caught.

In particular, when the horizontal member is formed with a projection that protrudes outward and the projection reaches the end surface of the horizontal member, the problem becomes apparent. That is, it becomes easier for a hand, clothes, or the like to come into contact with the edge formed at the intersection of the outer peripheral surface and the end surface of the overhanging projection.

JP 2012-239604 A

The present invention is intended to suitably cover edges appearing at joints between adjacent horizontal members when constructing a support rail for supporting a seat by connecting a plurality of horizontal members. intended purpose.

In the present invention, a support rail for supporting a seat, in which a plurality of horizontal members extending in a predetermined direction are connected with a gap, and an end face of one adjacent horizontal member and the other horizontal member. The structure for supporting the seat is provided with a cover member having an insertion portion which is inserted into a gap between the end faces and abuts or approaches at least a part of the end faces of the horizontal members.

Further, the cover member has an exterior part that extends from the insertion part along the extending direction of the horizontal member and contacts or approaches at least a part of the outer circumference of the horizontal member that intersects the end face of the horizontal member. preferably.

Further, in the present invention, a support rail for supporting a seat, in which a plurality of horizontal members extending in a predetermined direction and having hollow ends are connected with a gap therebetween, and one adjacent horizontal member. a fitting portion that is inserted into both the end portion and the end portion of the other horizontal member to fit them; The spacer has a spacer that abuts on or is close to at least a part of the end face and whose outer periphery is flush with or substantially flush with at least a part of the outer periphery of the horizontal member that intersects with the end face, or protrudes further outward than it. and a joint member.

When the horizontal member is provided with a projection that protrudes from other parts, and the projection extends to the end surface of the horizontal member, the cover member is provided at the end of the horizontal member with the projection. and close to the outer periphery of the projection, or the spacer of the joint member is in contact with or close to the end surface of the projection at the end of the horizontal member and the projection It is preferable that it is flush with or substantially flush with the outer periphery of or protrudes outward from it.

Said projection can be engaged by a seat supported on said support rails or by a support supporting said support rails. Thus, the projections can be used to connect the support rails to the seat or to connect the support rails to the support.

The projections are provided on the upper and lower sides of the horizontal member, respectively. One of the parts is inserted from below into the gap between the end faces of the horizontal member to cover the lower end face and outer circumference of the horizontal member, and the other part is inserted from above If the cover member is inserted into the gap between the end faces of the horizontal member to cover the upper end face and outer circumference of the horizontal member, the engaging portion provided on the seat or support and the cover member Interference can be avoided and the mounting position of the seat or the support relative to the support rail can be arbitrarily set or flexibly changed. When the engaging portion of the seat engages so as to overlap the gap between the adjacent transverse members, i.e. straddle both ends of both transverse members, the upper part of the cover member should be omitted and only the lower part should be fitted in the gap. When the engaging portions of the supports are engaged so as to overlap the gaps between the adjacent horizontal members, it is sufficient to omit the lower part of the cover member and mount only the upper part in the gap. Just do it. In addition, since the cover member is divided into upper and lower parts, it becomes easier to attach or detach the cover member to or from the support rail.

If the cover member covers the end surface and outer circumference of the end portion of the horizontal member on the side that faces the front of the person sitting on the seat, the cover member can cover the place that is easily accessible to the person's hand, and the person's finger can be covered. It is possible to effectively prevent contact with sharp edges of horizontal members.

Regarding the cover member, the width of the portion on the rear side for the person sitting on the seat of the exterior portion may be set larger than the width size of the portion on the front side for the person sitting on the seat of the same exterior portion.

In addition, if the area of the portion of the insertion portion that faces the front for the person sitting on the seat is larger than the area of the portion that faces the rear for the person sitting on the seat of the same insertion portion, the cover is attached to the support rail. The front side of the member, ie the more accessible side, is less likely to come off.

A fitting portion, in which the ends of the horizontal members are hollow and are inserted into and fitted to both the end of one adjacent horizontal member and the end of the other horizontal member, and a double-fitting portion. A joint member having a spacer that is inserted into a gap between the end faces of both horizontal members and is in contact with or close to at least a part of the end faces of the two horizontal members between the joining portions, the end faces of the horizontal members If the structure has the insertion part and the spacer interposed in the gap, a plurality of horizontal members can be easily connected via the joint member, and the spacer can connect the horizontal members together. A gap into which the cover member is inserted can be appropriately secured.

According to the present invention, when constructing a support rail for supporting a seat by connecting a plurality of horizontal members, edges appearing at joints between adjacent horizontal members are preferably covered. be able to.

1 is a perspective view showing a seat support structure and a seat according to one embodiment of the present invention; FIG. The perspective view which shows the support rail and cover member of the structure for seat support of the same embodiment. The exploded perspective view which shows the support rail and cover member of the structure for seat support of the same embodiment. The exploded perspective view which shows the support rail and joint member of the structure for seat support of the same embodiment. The front view which shows the structure for seat support of the same embodiment, and a seat. The side view which shows the structure for seat support of the same embodiment, and a seat. The side view which shows the cover member of the same embodiment. The bottom view which shows the cover member of the same embodiment. The sectional side view which shows the support rail of the same embodiment, a cover member, and a joint member. Front sectional drawing which shows the support rail of the same embodiment, a cover member, and a joint member. The top view which shows the support rail and cover member of the same embodiment. The perspective view which shows the support rail and joint member of the structure for seat support of the modification of this invention. The sectional side view which shows the support rail and joint member of the same modification.

One embodiment of the present invention will be described with reference to the drawings. 1, 5 and 6 show a seat support structure of this embodiment and a seat 6 provided using this structure. The seat support structure of this embodiment includes legs 2 as supports fixed to a stepped floor 1 serving as a base (or skeleton), and support rails 3 supported by the legs 2 and extending in a predetermined direction, that is, in the width direction. and a cover member 4 which is attached to the joint of the horizontal members 31 constituting the support rail 3, that is, the gap 32 between the adjacent horizontal members 31 and the horizontal members 31 to cover it. A plurality of seats 6 are arranged along the support rails 3 and each seat is supported by the support rails 3 .

In the past, the stepped floor 1 was constructed by casting concrete on site, but in recent years, it is constructed by joining a plurality of precast concrete blocks 11 prepared in advance at a factory or the like on site. is also increasing. As shown in FIG. 5, when a plurality of concrete blocks 11 are joined to form a stepped floor 1, the joints 12 between the concrete blocks 11 are filled with a sealing material, an adhesive, or the like, which is elastically deformable and stretchable. be laid.

The leg 2 has a base 21 fixed to the upright front surface 13 or the horizontal upward surface 14 of the stepped floor 1 using concrete plugs, anchors or the like, and a hook to engage and hold the support rail 3 . It has a joining portion 23 and a connecting portion 22 extending from the base portion 21 and connecting to the engaging portion 23 to rigidly connect the two. In the illustrated example, the base 21 of the leg 2 is fixed to the front surface 13 of the stepped floor 1, and the leg 2 is raised from the upward surface 14 of the stepped floor 1. This is done in consideration of the ease of cleaning work. That's all. A plurality of legs 2 are present and support the support rails 3 at a plurality of locations. In other words, the support rail 3 is laid across the legs 2 .

The seat 6 includes a seat 61 on which the buttocks of the person seated is placed, a backrest 62 on which the waist or back of the seated person rests, and the seat 61 and the backrest 62 on both left and right sides of the seat 61 and the backrest 62. and a support rod 63 that supports them while connecting them. The seat 61 is rotatable relative to the backrest 62. As shown in FIGS. 1 and 5, the seat 61 is flipped up to secure a passage. 61 can be tilted forward to be in a horizontal posture and a state in which a person can be seated can be selectively taken. The lower end of the support rod 63 is provided with an engaging portion 64 that engages with and holds the support rail 3 .

The support rail 3 is formed by connecting a plurality of horizontal members 31 extending in the width direction. Each horizontal member 31, which is a component of the support rail 3, is made by extruding a metal material such as an aluminum alloy and then cutting it into appropriate lengths, and has an equal cross-sectional shape. As shown in FIGS. 1 to 4, the horizontal member 31 has ridges 311 and 312 on its lower edge and upper edge, which are projections that protrude outward compared to other portions. The ridge 311 on the front side as seen from the person sitting on the seat 6 protrudes forward from the front surfaces of the support rail 3 and the horizontal member 31. - 特許庁In addition, the ridge 312 on the rear side as seen from the person sitting on the seat 6 protrudes rearward from the rear facing surface of the support rail 3 and the horizontal member 31 . The ridges 311 and 312 extend in the width direction together with the horizontal member 31 itself and reach both end faces 313 of the horizontal member 31 .

The engaging portion 23 of the leg 2 engages the lower half portion of (the horizontal member 31 constituting) the support rail 3 from below. More specifically, while gripping so as to surround the ridges 311 and 312 below the support rail 3 from both front and rear sides, the lower surface, which is the outer peripheral surface of the support rail 3, the front surface and the rear surface of the lower half portion. , and the upward surfaces of the ridges 311 and 312 . This prevents the support rail 3 from rattling or wobbling with respect to the leg 2. - 特許庁In some cases, the engaging portion 23 is divided into a plurality of members, and the engaging portion 23 is configured by fastening the members together using bolts, nuts, or the like.

The engaging portion 64 of the support rod 63 of the seat 6 engages with the upper half portion of (the horizontal member 31 that constitutes) the support rail 3 from above. More specifically, while gripping the ridges 311 and 312 above the support rail 3 so as to surround them from both the front and rear sides, the upper surface, which is the outer peripheral surface of the support rail 3, the front surface and the rear surface of the upper half portion. , and the downward surface of the ridge. This prevents the support rod 63 of the seat 6 from rattling or wobbling with respect to the support rail 3. - 特許庁In some cases, the engaging portion 64 is divided into a plurality of members, and the engaging portion 64 is constructed by fastening the members together using bolts, nuts, or the like.

A joint member 5 is used to connect a plurality of horizontal members 31 constituting the support rail 3 . As shown in FIGS. 4, 9 and 10, each horizontal member 31 is hollow at least at both left and right ends. The joint member 5 has a pair of left and right fitting portions 51 that are inserted into and fitted to the hollow end of one horizontal member 31 and the hollow end of the other horizontal member 31 adjacent to each other. and a spacer 52 inserted into the gap 32 between the end surfaces 313 of the horizontal members 31 between the fitting portions 51, so that the adjacent horizontal members 31 can be connected to each other. can. The joint member 5 is a hard integrally molded product using a resin material such as polyamide.

The spacer 52 is a flange-shaped thin piece that protrudes outward from the outer peripheral surface of the fitting portion 51, that is, projects forward, upward, rearward, and downward, and is continuous along the outer periphery of the fitting portion 51. It can be used to connect the horizontal members 31 of books across the gap 32 . However, the spacer 52 may be formed into an intermittent shape that is cut in places and is not continuous. The insertion portion 42 is orthogonal or approximately orthogonal to the fitting portion 51 and is positioned at the center or approximately the center of the fitting portion 51 on either side. The spacer 52 is stiffer than the insertion portion 42 of the cover member 4, which will be described later. In other words, the spacer 52 has a higher elastic modulus than the insertion portion 42 and is less likely to expand or contract in thickness than the spacer 52 when a stress of the same magnitude acts.

As shown in FIG. 10, in this embodiment, the thickness D2 of the spacer 52 is the width of the gap 32 between two adjacent horizontal members 31, that is, the end surface 313 of one horizontal member 31 and the other horizontal member. It is set smaller than the separation distance from the end face 313 of the material 31 . In short, when two adjacent horizontal members 31 are connected, the width of the gap 32 between the horizontal members 31 is made slightly wider than the thickness D2 of the spacer 52 . Therefore, the spacer 52 is slightly separated from the end faces 313 of one or both of the two connected horizontal members 31 . The width of the gap 32 between the horizontal members 31 is preferably set to a value within the range of 3 mm to 3.5 mm.

As already described, the horizontal member 31 that constitutes the support rail 3 is an extruded product, and the edge where the outer peripheral surface of the horizontal member 31 and the end surface 313 intersect (particularly perpendicular or substantially perpendicular) is sharp. . Above all, in this embodiment, the horizontal members 31 are provided with ridges 311 and 312 for engaging the engaging portions 23 of the legs 2 and the engaging portions 64 of the support rods 63 of the seat 6 outward, that is, forward and rearward. Since the edges where the outer peripheral surfaces of the ridges 311 and 312 and the end surface 313 of the horizontal member 31 intersect protrude forward and backward, the hands, clothes, bags, etc. of the person sitting on the seat 6 are protruded. becomes easier to touch its edges.

Therefore, in this embodiment, a sharp edge, especially the edges of the ridges 311 and 312, are provided at the joint of the support rail 3 where the end surfaces 313 of the two adjacent horizontal members 31 face each other across the gap 32. A cover member 4 is attached for covering. As shown in FIGS. 1 to 3, 7 and 8, the cover member 4 includes an insertion portion 42 which is inserted into a gap 32 between the end surfaces 313 of both horizontal members 31 facing each other, and the insertion portion 42. and an exterior part 43 extending along the extension direction of the horizontal member 31 . The cover member 4 is, for example, an integrally molded product using a resin material such as polypropylene, and has flexibility such that it can be bent to some extent by manual force.

In this embodiment, the cover member 4 is divided into an upper part 41 and a lower part 41 . The lower part 41 is inserted from below into the gap 32 between the end faces 313 of the horizontal members 31 and covers the end faces 313 and outer peripheral surfaces of the lower half portions of the ends of the horizontal members 31 . In addition, the upper part 41 is inserted from above into the gap 32 between the end faces 313 of the horizontal members 31 and covers the end faces 313 of the upper half of the ends of the horizontal members 31 and the outer peripheral surface. . However, the upper part 41 and the lower part 41 are common. The shape of the upper part 41 and the shape of the lower part 41 are identical and they are symmetrical with respect to the horizontal plane. Therefore, the upper part 41 can be flipped over and used as the lower part 41 and the lower part 41 can be flipped over and used as the upper part 41 .

The shape of the part 41 that constitutes the cover member 4 will be supplemented. As shown in FIGS. 2, 3, and 7 to 9, the exterior part 43 has the shape of the contour of the horizontal member 31 in a side view or a side cross-sectional view, that is, the shape of the front projection of the horizontal member 31. A shape that surrounds the upper half or lower half of the horizontal member 31 is formed according to the outer circumference of the line 311, the upper surface of the horizontal member 31, the rear ridge 312, and the rearward surface of the horizontal member 31. have. At the same time, the exterior part 43 has a flat plate shape extending from the insertion part 42 to the left and right sides along the width direction.

As shown in FIGS. 2, 9 and 10, when (each part 41 of) the cover member 4 is attached to the seam 32 at the end of the adjacent horizontal member 31, the front wall 431 of the exterior portion 43 of the cover member 4 is positioned on both sides. The top wall 433 abuts or is close to the front surface at the end of the horizontal member 31 , the top wall 433 is in contact with or close to the upper or lower surface at the end of both horizontal members 31 , and the rear wall 435 is in contact with both horizontal members 31 . abuts or is adjacent to the rear facing surface at the end of the Furthermore, a bulging wall 432 in the exterior part 43 that connects the front wall 431 and the top wall 433 while curving so as to bulge forward is aligned with the forward ridges 311 at the ends of both horizontal members 31 . and come into contact with or close to it. In addition, a bulging wall 434 that connects the top wall 433 and the rear wall 435 while curving so as to bulge rearward in the exterior part 43 is arranged along the rear ridges 312 at the ends of both horizontal members 31 . and come into contact with or close to it. As a result, the exterior portion 43 of the cover member 4 shields and covers the ends of the two adjacent horizontal members 31 and the gap 32 between them from the outside.

The width W2 of the portions 434 and 435 on the rear side for the person sitting on the seat 6 is larger than the width W1 of the portions 431 and 432 on the front side for the person sitting on the seat 6 of the exterior portion 43. I take it big. Specifically, the width W2 of the rear end portion of the rear wall 435, the rear bulging wall 434, and the top wall 433 connected thereto is the width of the front wall 431, the front bulging wall 432, and the top wall 433 connected thereto. It expands slightly more than the width dimension W1 of the front end portion. The width of the top wall 433 gradually decreases from the rear end toward the front end. The reason why the widths W1 and W2 of the exterior part 43 are set in this way is firstly to clarify the front and back of each part 41 of the cover member 4 . Secondly, as shown in FIG. 11, the support rails 3 are not completely straight, but are gently curved according to the shape of the stadium where the seats 6 are installed. When one of the horizontal members 31 is tilted forward with respect to the other by an angle of about one to several degrees and both are connected, the gap 32 between the end faces 313 of the horizontal members 31 is covered This is because the portion 43 appropriately shields from both the front and the rear.

As shown in FIGS. 3 and 7-9, the insertion portion 42 projects inwardly from the inner periphery of the exterior portion 43, i.e., rearwardly from the front wall 431 and the forward bulging wall 432, and downwardly from the top wall 433. (upper part 41 ) or upwards (lower part 41 ) and forwardly from the rear wall 435 and rear bulging wall 434 . The insertion portion 42 is orthogonal or approximately orthogonal to the exterior portion 43 and is positioned at the center or approximately the center of the width dimensions W1 and W2 of the exterior portion 43 . The insertion portion 42 is softer than the brim-shaped spacer 52 of the joint member 5 described above. In other words, the insertion portion 42 has a lower elastic modulus than the spacer 52 and expands and contracts to a greater thickness than the spacer 52 when a stress of the same magnitude acts.

As shown in FIGS. 8 and 10, the thickness D1 of the insertion portion 42 is the width of the gap 32 between two adjacent horizontal members 31, that is, the distance between the end face 313 of one horizontal member 31 and the other horizontal member 31. 31 to the end face 313, or substantially the same (slightly larger or slightly smaller than the width of the gap 32). As shown in FIGS. 2, 9 and 10, when (each part 41 of) the cover member 4 is attached to the joint 32 at the end of the adjacent horizontal member 31, the insertion portion 42 is inserted into the horizontal member 31. It is inserted into the gap 32 between the end faces 313 and comes into contact with or close to the end faces 313 of the horizontal members 31 to cover almost all of the end faces 313 . Normally, the insertion part 42 is tightly fitted into the gap 32 between the end faces 313 of both horizontal members 31 and is in close contact with the end faces 313 of both horizontal members 31 .

Therefore, the sharp edge where the outer peripheral surface and the end surface 313 of the horizontal member 31 intersect is hidden by the exterior portion 43 and the insertion portion 42 of the cover member 4 . In particular, the edges where the outer peripheral surfaces of the ridges 311 and 312 and the end face 313 intersect are hidden to prevent the edges from being touched by a person's hand, clothing, bag, or the like.

As shown in FIGS. 9 and 10, when the ends of the two horizontal members 31 are connected using a joint member and the cover member 4 is attached to the gap 32 between the horizontal members 31, The spacer 52 of the joint member 5 and the inserting portion 42 of the cover member 4 face each other in the inside-outside direction within the gap 32 of the horizontal member 31 .

As shown in FIGS. 7 and 9, in a side view or a cross-sectional side view, the area of the portion 421 of the insertion portion 42 on the front side for the person sitting on the seat 6 corresponds to the area of the portion 421 of the insertion portion 42. is larger than the area of the portion 422 on the rear side. Specifically, by partially cutting out a portion 422 of the insertion portion 42 surrounded by the bulging wall 434 behind the exterior portion 43 , the area of the portion 422 on the rear side of the insertion portion 42 is reduced to the area of the exterior portion 43 . is smaller than the area of the portion 421 surrounded by the bulging wall 432 in front of the .

As a result, with respect to each component 41 constituting the cover member 4, the rear side portions 434 and 435 are more likely to be elastically deformed than the front side portions 431 and 432. can be easily bent rearwardly upward (upper part 41) or rearwardly downward (lower part 41). In addition, the friction between the rear portion 422 of the insertion portion 42 inserted into the gap 32 of the horizontal member 31 and the end surface 313 of the horizontal member 31 is smaller, and the front portion 421 and the end surface 313 of the horizontal member 31 are smaller. greater friction with As a result, the front side of the cover member 4 attached to the joint 32 of the support rail 3, i.e. the side more accessible to the person seated on the seat 6, becomes more difficult to come off, while the rear side of the cover member 4, i.e. the seated person, is more difficult to come off. The hard-to-reach side is easier to remove.

When each part 41 of the cover member 4 is to be attached to the joint 32 of the support rail 3, the front side of the insertion part 42 is first inserted or press-fitted into the gap 32 of the horizontal member 31 from the front, and then the exterior part 43 is The front wall 431 and the front bulging wall 432 are brought into contact with or close to the front surface of the end portion of the horizontal member 31 and the front projection 312 . Next, the upper side (upper part 41) or the lower side (upper part 41) of the insertion part 42 is inserted or press-fitted into the gap 32 of the horizontal member 31 from above or below, and the top wall 433 of the exterior part 43 is pressed. It is brought into contact with or close to the upper surface or lower surface of the end of the horizontal member 31 . After that, the rear side of the insertion portion 42 is inserted or press-fitted into the gap 32 of the horizontal member 31 from the rear, and the rear wall 435 and the rear bulging wall 434 of the exterior portion 43 are pushed into the rear portion of the end portion of the horizontal member 31 . It is brought into contact with or close to the facing surface and the rear projection 312 .

On the other hand, in order to detach the parts 41 of the attached cover member 4 from the joints 32 of the support rails 3, first, the rear wall 435 of the exterior part 43 and the bulging wall 434 on the rear side are separated from each other by the horizontal members. The rear side of the insertion part 42 is extracted from the gap 32 of the horizontal member 31 by pulling it away from the end of the horizontal member 31 to the rear. Next, the top wall 433 of the exterior part 43 and the end part of the horizontal member 31 are pulled upward (upper component 41) or downward (lower component 41), and the upper or lower side of the insertion part 42 is pulled. It is withdrawn from the gap 32 of the horizontal member 31 . Finally, the front wall 431 of the exterior part 43 and the bulging wall 432 on the front side are pulled forward from the end of the horizontal member 31, and the front side of the insertion part 42 is pulled out from the gap 32 of the horizontal member 31. put out

The metal horizontal member 31 expands and contracts in length as the temperature changes. In addition, when an earthquake occurs, the concrete blocks 11 forming the stepped floor 1 and the legs 2 fixed thereto are shaken, and the horizontal members 31 supported by the legs 2 are shaken together with the seats 6. - 特許庁When constructing the support rails 3, the end faces 313 of the adjacent horizontal members 31 are connected to each other with a gap 32 instead of being in close contact with each other, because the horizontal members 31 do not collide with the adjacent horizontal members 31. This is to avoid or suppress excessive stress concentration in the horizontal member 31 due to expansion and contraction, an earthquake, or the like. The thickness D2 of the spacer 52 of the joint member 5 is made thinner than the width of the gap 32 of the horizontal member 31 and the thickness D1 of the insertion portion 42 of the cover member 4, and the insertion portion 42 of the cover member 4 is relatively large. The softness also contributes to the purpose of preventing damage to the horizontal member 31 due to excessive stress acting on the horizontal member 31 .

As shown in FIG. 5, two adjacent legs 2 may be fixed to separate concrete blocks 11 from each other. At this time, if these two legs 2 are connected to the same single horizontal member 31, each concrete block 11 will move in different directions when an earthquake occurs, and each leg 2 will also move in different directions. As a result, the horizontal members 31 supported by the legs 2 may be damaged.

Therefore, when two adjacent legs 2 are fixed to separate concrete blocks 11, the horizontal member 31 with which one of the legs 2 engages and the horizontal member 31 with which the other leg 2 engages. The legs 2 and the horizontal members 31 are arranged so that the are separated from each other. In this embodiment, an intermediate horizontal member shorter than the horizontal members 31 is placed between the horizontal member 31 with which one leg 2 engages and the horizontal member 31 with which the other leg 2 engages. 31 is interposed. This intermediate horizontal member 31 is separate from the horizontal member 31 with which one leg 2 engages and from the horizontal member 31 with which the other leg 2 engages. Needless to say, the horizontal member 31 with which one leg 2 engages and the horizontal member 31 with which the other leg 2 engages are separate members. The intermediate cross members 31 do not engage the legs 2 fixed to the concrete blocks 11, ie are not directly supported by the legs 2. FIG. A joint 12 that is a boundary between two concrete blocks 11 is located at a position overlapping an intermediate horizontal member 31 .

Further, as shown in FIG. 5, the engaging portion 64 provided on the support rod 63 of the seat 6 engages so as to straddle both ends of the two adjacent horizontal members 31, in other words, For example, it may engage overlying seams 32 of the support rails 3 . In this case, since the engaging portion 64 is tightly fitted to the outer periphery including the ridges 311 and 312 of each of the horizontal members 31 and strongly bound thereto, the gap between the end surfaces 313 of both horizontal members 31 is maintained. 32 are provided, the horizontal members 31 are integrated by the engaging portions 64 (despite being separate members separated from each other). That is, one of the two adjacent horizontal members 31 is prevented from being displaced relative to the other. The same applies when the engaging portion 23 provided on the leg 2 is engaged so as to straddle both ends of two adjacent horizontal members 31 .

Then, the engaging portion 64 of the seat 6 or the engaging portion 23 of the leg 2 is engaged so as to straddle the left end portion of the intermediate horizontal member 31 and the right end portion of the horizontal member 31 on the left thereof, and When the right end of the same intermediate horizontal member 31 and the left end of the adjacent horizontal member 31 are engaged so as to straddle, the three horizontal members 31 including the intermediate horizontal member 31 are integrated. Ultimately, the situation is the same as when two legs 2 fixed to separate concrete blocks 11 are joined to one cross member 31 . If this is the case, an excessive stress may be concentrated on one of the horizontal members 31 due to elongation of the horizontal members 31 themselves, the occurrence of an earthquake, or the like.

In order to avoid this problem, in this embodiment, one end of one horizontal member 31 (especially the intermediate horizontal member 31) and an end of another horizontal member 31 adjacent thereto are separated from each other. When the engaging portions 64 and 23 of any one of the seats 6 or legs 2 are engaged so as to straddle both of the The length of the horizontal member 31 is set so that the engaging portions 64 and 23 of either the seat 6 or the leg 2 do not engage with the end of another horizontal member 31 that there is Specifically, the length of the intermediate horizontal member 31 is set to the same extent as the separation distance between a pair of engaging portions 64 provided on the left and right sides of one seat 6, that is, the inner length of both engaging portions 64. By making it shorter than that, the possibility that the engaging portions 64 on both sides of the seat 6 will cover and engage the seams 32 on both left and right sides of one intermediate horizontal member 31 at the same time is reduced.

The number of seats 6 can be arbitrarily increased or decreased, and the arrangement layout thereof can be arbitrarily changed along the extending direction of the support rails 3. Incidentally, the lower edge of the engaging portion 64 of the seat 6 that engages with the support rail 3 is the part 41 (of the front wall 431 and the rear wall 435) below the cover member 4 attached to the joint 32 of the support rail 3. located above the upper edge. As shown in FIG. 5, when the engaging portion 64 of any seat 6 engages over the seam 32 of the support rail 3, the seam 32 is fitted with the upper part 41 of the cover member 4. Instead, only the lower part 41 is mounted.

In addition, the upper edge of the engaging portion 23 of the leg 2 that engages the support rail 3 is the upper part 41 (of the front wall 431 and the rear wall 435 of the cover member 4) that is attached to the joint 32 of the support rail 3. ) is located above the lower edge. When the engaging portion 23 of one of the legs 2 covers and engages the joint 32 of the support rail 3, the joint 32 is not fitted with the lower part 41 of the cover member 4, and only the upper part 41 is fitted. do.

The lower edge of the engaging portion 64 of the seat 6 is above the upper edge of the engaging portion 23 of the leg 2, and the engagement of the engaging portion 64 of the seat 6 and the support rail 3 with one joint 32 of the support rail 3. It is also possible for the portions 23 to overlap and engage at the same time. In this case, both parts 41 of the cover member 4 are not attached to the seam 32 .

In this embodiment, a plurality of horizontal members 31 extending in a predetermined direction are connected with a gap 32 between the support rail 3 for supporting the seat 6 and the end surface 313 of one adjacent horizontal member 31. and the end surface 313 of the other horizontal member 31 and abuts or approaches at least a part of the end surface 313 of the other horizontal member 31; and a cover member 4 having an exterior part 43 that abuts or approaches at least a part of the outer periphery of the horizontal member 31 that extends along the extension direction of the horizontal member 31 and intersects the end surface 313 of the horizontal member 31. Constructed a structure. According to this embodiment, when constructing the support rail 3 for supporting the seat 6 by connecting a plurality of horizontal members 31, the joint 32 between the adjacent horizontal members 31 appears. Edges can be suitably coated.

The horizontal member 31 is provided with projections 311 and 312 that protrude from other portions, and the projections 311 and 312 reach an end surface 313 of the horizontal member 31 . When the cover member 4 contacts or approaches the end surfaces 313 of the protrusions 311 and 312 at the ends of the horizontal member 31 and contacts or approaches the outer circumferences of the protrusions 311 and 312, the protrusions 311, It covers the sharp edge where the outer circumference of 312 and the end surface 313 intersect.

The projections 311, 312 are engaged with the seat 6 supported on the support rails 3, and can be engaged with the supports (legs) 2 supporting the support rails 3. As shown in FIG. In other words, the protrusions 311 and 312 can be used to connect the support rails 3 and the seat 6 or the support rails 3 and the support 2 .

The projections 311 and 312 are provided above and below the horizontal member 31, respectively. 2 are engaged with each other, the cover member 4 is divided into upper and lower parts, and one part 41 of the cover member 4 is inserted from below into the gap 32 between the end faces 313 of the horizontal member 31 to The other part 41 is inserted from above into the gap 32 between the end faces 313 and 313 of the horizontal member 31 to cover the upper end face of the horizontal member 31 . 313 and outer circumference. As a result, interference between the engaging portions 64 and 23 provided on the seat 6 or the support 2 and the cover member 4 can be avoided, and the mounting position of the seat 6 or the support 2 with respect to the support rails 3 can be arbitrarily set or set. be flexible to change. When the engaging portion 64 of the seat 6 engages so as to overlap the gap 32 between the adjacent horizontal members 31, that is, to straddle the ends of both horizontal members 31, It suffices to omit the upper part 41 of the cover member 4 and mount only the lower part 41 in the gap 32 . When the engaging portion 23 of the support 2 is engaged so as to overlap the gap 32 between the adjacent horizontal members 31, the lower part 41 of the cover member 4 is omitted and the upper part 41 only needs to be mounted in the gap 32. FIG. In addition, since the cover member 4 is divided into upper and lower parts, the work of attaching or detaching the cover member 4 to or from the support rail 3 becomes easier.

Since the cover member 4 covers the end surface 313 of the end portion of the horizontal member 31 on the side facing forward for a person sitting on the seat 6 and the outer periphery, the cover member 4 can cover a place that is easily accessible by a person's hand, It is possible to effectively prevent human fingers from touching the sharp edge of the horizontal member 31. - 特許庁

With respect to the cover member 4, the width W2 of the portions 434 and 435 of the exterior portion 43 on the rear side for the person sitting on the seat 6 is set to the width W2 of the portions 431 and 432 on the front side for the person sitting on the seat 6 of the exterior portion 43. is set to be larger than the width W1 of the horizontal member 31, as shown in FIG. This is effective for appropriately shielding the gap 32 between 313 and the end surface 313 from both the front and rear by the exterior part 43 .

In addition, since the area of the portion 421 of the insertion portion 42 on the front side for the person sitting on the seat 6 is larger than the area of the portion 422 on the side of the insertion portion 42 on the rear side for the person sitting on the seat 6, the support rail The front side of the cover member 4 attached to 3, that is, the side that is easily accessible by human hands, becomes difficult to come off.

Fitting portions 51 which are hollow at the ends of the horizontal members 31 and are inserted into and fitted to both the end portion of one adjacent horizontal member 31 and the end portion of the other horizontal member 31; Also, the joint member 5 has a spacer 52 that is inserted into the gap 32 between the end surfaces 313 of the horizontal members 31 between the fitting portions 51 and contacts or approaches at least a part of the end surfaces 313 . and the insertion portion 42 and the spacer 52 are interposed in the gap 32 between the end surfaces 313 of the horizontal members 31 . 31 can be connected, and the spacer 52 can appropriately secure the gap 32 into which the cover member 4 is inserted in the joint portion between the horizontal members 31 and 31 .

Thus, in this embodiment, a plurality of horizontal members 31 extending in a predetermined direction and having hollow ends are connected to each other with a gap 32 interposed between the support rails 3 for supporting the seat 6 and the adjacent support rails 3 . Fitting portions 51 that are inserted into and fit to both the end portion of one horizontal member 31 and the end portion of the other horizontal member 31, and both the horizontal member 31 that is located between the fitting portions 51. Joint member having a spacer 52 which is inserted into the gap 32 between the end faces 313 of the joint members 31 and whose thickness is thinner than the width of the gap 32 and which is separated from the end face 313 of one or both of the horizontal members 31 5 to construct a seat support structure. According to this embodiment, when the support rails 3 for supporting the seat 6 are constructed by connecting a plurality of horizontal members 31, excessive stress is applied to the horizontal members 31 due to the displacement of the horizontal members 31. can be avoided or suppressed from acting.

In addition, in this embodiment, a plurality of horizontal members 31 extending in a predetermined direction are connected to each other with a gap 32 interposed between the support rails 3 for supporting the seats 6, and the support rails 3 are supported. Provided on the support body 2 that supports the seat 6 or the support rail 3, it is provided with engaging portions 64 and 23 that engage with the support rail 3, and one end of the horizontal member 31 and this When the engaging portions 64 and 23 of either the seat 6 or the support 2 are engaged so as to straddle both ends of another horizontal member 31 adjacent to the The horizontal members 31 are arranged so that the engaging portions 64, 23 of either the seat 6 or the support 2 do not engage so as to straddle both the end and the end of another horizontal member 31 adjacent thereto. A seat support structure with a set length of . According to this embodiment, when the support rails 3 for supporting the seat 6 are constructed by connecting a plurality of horizontal members 31, excessive stress is applied to the horizontal members 31 due to the displacement of the horizontal members 31. can be avoided or suppressed from acting.

A gap 32 between the end faces 313 of the horizontal member 31 is set to a size between 3 mm and 3.5 mm, for example.

After that, an insertion part 42 which is inserted into the gap 32 between the end faces 313 of the horizontal members 31 and contacts or approaches at least a part of the end faces 313 of the horizontal members 31, and this insertion part 42 A cover member 4 having an exterior part 43 that extends along the extension direction of the horizontal member 31 from the top and has an exterior part 43 that contacts or approaches at least a part of the outer periphery of the horizontal member 31 that intersects the end surface 313 of the horizontal member 31. By doing so, the edge appearing at the joint 32 between the adjacent horizontal members 31 can be preferably covered with the cover member 4 .

The insertion portion 42 of the cover member 4 is softer than the spacer 52 of the joint member 5 . As a result, even if the insertion portion 42 of the cover member 4 is tightly fitted into the gap 32 between the end surfaces 313 of the horizontal members 31 and brought into close contact with the end surfaces 313 of both horizontal members 31, the horizontal members 31 do not move. It is difficult for excessive stress to act on

When two adjacent supports 2 of the supports 2 supporting the support rail 3 are fixed to separate concrete blocks 11, one of the two supports 2 is engaged with a cross member 31. , are separated from the horizontal member 31 with which the other is engaged, and the two horizontal members 31 are separated.

Between the horizontal member 31 with which one of the two supports 2 is engaged and the horizontal member 31 with which the other is engaged, an intermediate member separated from both horizontal members 31 and forming a separate body is provided. A horizontal member 31 is interposed.

The present invention is not limited to the embodiments detailed above. For example, the seat 6 does not necessarily have the backrest 62, and the seat 6 having only the seat 61 can be supported by the support rails 3. A flip-up mechanism for the seat 61 is also not essential.

The horizontal member 31 constituting the support rail 3 is formed with projections (ridges) 311 and 312 projecting upward from the upper surface thereof and projections (ridges) 311 and 312 projecting downward from the bottom surface thereof, The projections 311 and 312 may be engaged with the engaging portion 64 of the seat 6 or the engaging portion 23 of the leg 2 . In this case, it looks like FIG. 9 is rotated leftward or rightward by 90 degrees. In this case as well, the insertion portion 42 of the cover member 4 is, of course, inserted into the gap 32 between the end faces 313 of the horizontal member 31 and abuts or approaches at least a part of the end faces 313 to press them. cover. An exterior portion 43 extending from the insertion portion 42 along the extension direction of the horizontal member 31 abuts or approaches at least a portion of the outer periphery intersecting the end surface 313 of the horizontal member 31 to cover it.

In the above embodiment, the cover member 4 is divided into upper and lower parts, but it is also possible to divide the cover member 4 into front and rear parts.

The cover member 4 for covering the edge of the horizontal member 31 is not an essential component. As shown in FIGS. 12 and 13 , the outer periphery of the spacer 52 of the joint member 5 projects outward to a position where it is flush or substantially flush with at least a portion of the outer periphery of the horizontal member 31 . , the edge where the outer peripheral surface of the horizontal member 31 and the end surface 313 intersect can be covered or shielded. In this case, the thickness width of the spacer 52 is the width of the gap 32 between the two adjacent horizontal members 31, that is, the separation distance between the end surface 313 of one horizontal member 31 and the end surface 313 of the other horizontal member 31. It is preferably equal or approximately equal (slightly larger or slightly smaller than the width of gap 32). The spacer 52 abuts or approaches at least a portion of the end surface 313 of the horizontal member 31 . In particular, the spacer 52 abuts or approaches the end surfaces 313 of the projections 311 and 312 at the ends of the horizontal member 31 and is flush or substantially flush with the outer peripheries of the projections 311 and 312 .

Further, the outer circumference of the spacer 52 of the joint member 5 protrudes outward from at least a part of the outer circumference of the horizontal member 31, so that the outer peripheral surface and the end surface of the horizontal member 31 are aligned. It is also conceivable to cover or shield the edges where 313 intersects. The spacers 52 may protrude outward from the outer peripheries of the protrusions 311 and 312 while abutting or approaching the end surfaces 313 of the protrusions 311 and 312 at the ends of the horizontal member 31 .

The exterior part 43 of the cover member 4 in the above-described embodiment is not essential, and the cover member 4 without such an exterior part 43, that is, the end surface 313 of one horizontal member 3 and the other horizontal member 3, which are adjacent to each other. It is also possible to construct the cover member 4 having only the insertion portion 42 which is inserted into the gap 32 with the end face 313 of the horizontal member 3 and contacts or approaches at least a part of the end face 313 of the horizontal member 3 . In this case, the insertion portion 42 of the cover member 4 abuts or contacts the end face 313 of the portion including the protrusions 311 and 312 at the end of the horizontal member 3, similarly to the spacer 52 shown in FIGS. Get close. The insertion portion 42 is preferably flush with or substantially flush with the outer periphery of the portion of the horizontal member 3 including the protrusions 311 and 312, or protrudes further outward than it.

In addition, the specific configuration of each part can be modified in various ways without departing from the scope of the present invention.

11... Concrete block 2... Support (leg)
23... Engagement part 3... Support rail 31... Horizontal member 311, 312... Projection (protrusion)
313 End surface 32 Gap 4 Cover member 41 Part 42 Insertion part 43 Exterior part 5 Joint member 51 Fitting part 52 Spacer 6 Seat 64 Engagement part D1 Thickness of insertion part D2 Spacer Thickness W1: Width of the front part of the exterior part

W2: Width of the rear part of the exterior part

Claims (9)

a support rail for supporting a seat, in which a plurality of horizontal members extending in a predetermined direction are connected with a gap therebetween;
a cover member having an insertion portion inserted into a gap between an end face of one adjacent horizontal member and an end face of the other horizontal member and abutting or close to at least a part of the end faces of the horizontal members; ,
The cover member has an exterior part that extends from the insertion part along the extension direction of the horizontal member and contacts or approaches at least a part of the outer circumference of the horizontal member that intersects the end surface of the horizontal member. A seat support structure. a support rail for supporting a seat, in which a plurality of horizontal members extending in a predetermined direction are connected with a gap therebetween;
a cover member having an insertion portion inserted into a gap between an end face of one adjacent horizontal member and an end face of the other horizontal member and abutting or close to at least a part of the end faces of the horizontal members; ,
The horizontal member is provided with a projection that protrudes from other parts, and the projection reaches an end face of the horizontal member,
A structure for supporting a seat, wherein the cover member abuts or approaches the end surface of the projection and abuts or approaches the outer circumference of the projection at the end of the horizontal member . The projections are provided on the upper and lower sides of the horizontal member, and the upper projection engages the seat supported by the support rail, and the lower projection supports the support rail. engages with
The cover member is divided into upper and lower parts, one part of which is inserted from below into the gap between the end faces of the horizontal member to cover the lower end face and outer circumference of the horizontal member, and the other part. 3. The seat support structure according to claim 2, wherein said part is inserted from above into the gap between the end faces of the horizontal member to cover the upper end face and outer periphery of said horizontal member. a support rail for supporting a seat, in which a plurality of horizontal members extending in a predetermined direction are connected with a gap therebetween;
a cover member having an insertion portion inserted into a gap between an end face of one adjacent horizontal member and an end face of the other horizontal member and abutting or close to at least a part of the end faces of the horizontal members; ,
A structure for supporting a seat, wherein the cover member covers an end surface and an outer periphery of the end portion of the horizontal member on the side facing forward for a person sitting on the seat. 2. The seat support structure according to claim 1, wherein the width of the portion of the exterior portion facing the rear of a seat occupant is greater than the width of the portion of the exterior portion facing the front of the occupant of the seat . a support rail for supporting a seat, in which a plurality of horizontal members extending in a predetermined direction are connected with a gap therebetween;
a cover member having an insertion portion inserted into a gap between an end face of one adjacent horizontal member and an end face of the other horizontal member and abutting or close to at least a part of the end faces of the horizontal members; ,
The seat support structure has a larger area of a portion on the front side for a person sitting on the seat of the insertion portion than a portion on the rear side for the person sitting on the seat of the same insertion portion . a support rail for supporting a seat, in which a plurality of horizontal members extending in a predetermined direction are connected with a gap therebetween;
a cover member having an insertion portion inserted into a gap between an end face of one adjacent horizontal member and an end face of the other horizontal member and abutting or close to at least a part of the end faces of the horizontal members; ,
An end of the horizontal member is hollow,
Fitting portions that are inserted into and fit to both the end portion of one adjacent horizontal member and the end portion of the other horizontal member, and the end faces of both horizontal member between the fitting portions. A joint member having a spacer inserted into a gap with the end face and abutting or close to at least a part of the end face,
A seat support structure in which the insertion part and the spacer are interposed in the gap between the end faces of the horizontal members. a support rail for supporting a seat, in which a plurality of horizontal members extending in a predetermined direction and having hollow ends are connected with a gap therebetween;
Fitting portions that are inserted into and fit to both the end portion of one adjacent horizontal member and the end portion of the other horizontal member, and the end faces of both horizontal member between the fitting portions. It is flush with or substantially flush with at least a part of the outer circumference of a horizontal member that is inserted into a gap with an end face, contacts or approaches at least a part of the end face, and has an outer circumference that intersects with the end face. a joint member having a spacer protruding toward the
The horizontal member is provided with a projection that protrudes from other parts, and the projection reaches an end face of the horizontal member,
A seat in which the spacer of the joint member is in contact with or close to the end face of the projection at the end of the horizontal member and is flush with or substantially flush with the outer periphery of the projection, or protrudes outward beyond it. supporting structure. 9. A seat support structure according to claim 2 or 8, wherein said projection engages a seat supported on said support rails or a support supporting said support rails .

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