JP3224449U - Inner sphere curb device - Google Patents

Abstract

An inner curb device is provided which does not cause inconvenience due to expansion and contraction of a synthetic resin with respect to a curb main body. An inner rim curb apparatus includes a curb main body using a long rectangular hollow pipe, and a synthetic resin cover is put on the curb main body. The synthetic resin cover 50 includes a main body cover 52 that covers the entire curb main body 12 and an end cover 54 that covers the longitudinal end of the curb main body 12. The main body cover 52 has an upper surface that covers the upper surface of the curb main body 12 and a side surface that covers the side surface of the curb main body 12 continuously at both ends in the width direction orthogonal to the longitudinal direction of the upper surface. The end cover 54 has an end face that covers the longitudinal end of the curb main body 12, a side surface of the curb main body 12 adhered to a side surface of the main body cover 52, and has a side surface integral with the end surface. Since the end face of the end cover portion 54 is locked to the longitudinal end of the curb main body 12, the curb main body 12 is not exposed from the synthetic resin cover 50 regardless of the expansion and contraction of the synthetic resin cover 50. [Selection diagram] FIG.

Description

  The present invention relates to an inner sphere curb device, and more particularly to, for example, an inner sphere curb device in which a curb body made of metal is covered with a synthetic resin cover.

  For example, an existing curb device as disclosed in Patent Document 1 is immersed except when used as a land track, and uses the ground for another game such as soccer. The main body of the curb device is formed of a metal such as SUS304, for example, and its surface is exposed even in the immersed state. For this reason, accidents in which a player such as a soccer player slides shoes have frequently occurred.

  Patent Document 2 discloses an example of another background art capable of preventing such an accident. The inner rim 5 of Patent Document 1 is formed by embedding a metal pipe 7 in a synthetic resin material 6 (paragraph [0018], FIGS. 4 and 5). In the inner sphere curb device of Patent Document 2, since the soft synthetic resin material is exposed at the time of immersion, there is a possibility that accidents such as slipping of shoes can be prevented.

JP-A-9-680 [A63C 19/00, E01C 11/22] JP-A-9-19531 [A63C 19/00, E01C 11/22]

  However, in the inner rim curb device of Patent Document 2, as a result of the difference in thermal expansion coefficient between the metal and the synthetic resin, the synthetic resin greatly expands and contracts with the metal in summer and winter, so that the metal pipe is partially exposed. There is an inconvenience.

  Therefore, the main purpose of this invention is to provide a new, inner limb device.

  Another object of the present invention is to provide an inner kerb device which can prevent inconvenience caused by expansion and contraction of a metal inner kerb body made of a synthetic resin.

  A first aspect of the present invention includes a curb body having a rectangular shape and a rectangular cross section, and a resin cover covering the curb body. The resin cover is made of synthetic resin, and covers an entire upper surface of the curb body. A main body cover portion having two main body cover side surfaces that continuously cover the side surface of the curb main body from the width direction side end of the main body cover portion, and an end covering the longitudinal end portion of the main body cover portion with the main body cover portion It is an inner rim curb device including a part cover part.

  In the first invention, an inner curb device (10: a reference numeral exemplifying a corresponding part in the embodiment; the same applies hereinafter) of a track and field stadium track is a fixed-length longitudinal curb body (12) composed of a quadrangular prism. And the resin cover (50) is put on the curb body (12). The resin cover (50) includes a main body cover (52) and an end cover (54). The main body cover portion (50) made of a synthetic resin covers the upper surface (52a) covering the entire upper surface of the curb body (12) and the side surface of the curb main body (12) continuously from the widthwise side end of the upper surface (52a). An end cover portion (54) having two main body cover side surfaces (52b) and made of the same synthetic resin as the main body cover portion covers the longitudinal end of the main body cover portion (52).

  According to the first invention, since the resin cover also covers the longitudinal end of the curb main body, it is possible to prevent a disadvantage that the curb main body is exposed from the resin cover due to expansion and contraction due to a temperature change.

A second invention is according to the first invention, wherein the resin cover is an inner curb device including an inner layer and a water-repellent outer layer formed outside the inner layer.

  According to the second invention, (the inner layer of) the resin cover can be effectively protected by the outer layer.

  According to this invention, since the resin cover also covers the longitudinal end portion of the curb main body, it is possible to prevent a disadvantage that the curb main body is exposed from the resin cover due to expansion and contraction due to a temperature change.

FIG. 1 is a perspective view from below showing an inner curb device of an athletic track according to an embodiment of the present invention. FIG. 2 is a front view showing the inner curb device of FIG. FIG. 3 is a bottom view showing the inner curb device of FIG. 1. FIG. 4 is a perspective view of the resin cover of FIG. 1 as viewed from below. FIG. 5 is an illustrative view showing one example of a base material of the resin cover of FIG. 4. FIG. 6 is an exploded perspective view showing a procedure for covering the curb body with a resin cover in the embodiment of FIG. FIG. 7 is a perspective view corresponding to FIG. 1 and showing a state in which a resin cover is put on the curb main body in the embodiment of FIG. FIG. 8 is an illustrative view showing a state of an insertion pin when the inner curb device of the embodiment in FIG. 1 is installed in a socket of a ground of an athletics stadium. FIG. 9 is an illustrative view showing a relation between a curbstone main body and a resin cover at a longitudinal end portion in the embodiment of FIG.

  Referring to FIGS. 1-3, an inner curb device 10 (sometimes simply referred to as an “inner curb device”) of an athletic track according to one embodiment of the present invention is, for example, stainless steel (eg, SUS304). And the like. The curb main body 12 is a long object having a fixed length with both ends closed.

  In the embodiment, most of the members and parts such as the curb body 12 are formed by bending (pressing) a stainless steel plate having a thickness of 2.0 mm as an example. However, it goes without saying that the thickness of the plate material can be arbitrarily changed.

  In the inner-sphere curb device 10 of this embodiment, as shown in FIGS. 1 and 3, at a predetermined position in the longitudinal direction of the lower surface 12 a of the curb main body 12 (in the embodiment, three places near both ends and a central portion), The insertion pin 14 is mounted via the mounting plate 16. As will be described later, the insertion pin 14 is inserted into a pin receiver 22 (FIG. 8) of a socket 20 formed in advance on the ground ground 18 when the inner curb device 10 is installed on the ground ground of an athletics stadium. You.

  Then, a spacer 24 serving as a detent is attached to the lower surface 12a of the curb main body 12 at an intermediate position of each of the three insertion pins 14.

  The spacer 24 is also formed by bending a stainless steel plate. The height of the spacer 24 is selected to be a dimension corresponding to the distance between the lower surface 12a of the curb body 12 and the ground ground 18 that occurs when the above-described insertion pin 14 is inserted into the socket 20 of FIG. In this embodiment, as an example, 16.5 mm was set.

  The inner sphere curb device 10 of this embodiment includes a resin cover 50 made of a synthetic resin that covers the curb main body 12, and the curb main body 12 covered with the resin cover 50 forms the inner sphere curb member 100. In this embodiment, the length in the longitudinal direction of the inner sphere curb member 100 in which the resin cover 50 is covered on the curb main body 12 is, for example, 2000 mm. In addition, the height of the inner sphere curb member 100 is, for example, 30 mm, and the width (width in a direction orthogonal to the long direction) is set to 50 mm. However, these dimensions are determined as standards, and can be changed in accordance with changes in standards.

  Here, the resin cover 50 will be described. As shown in FIG. 4, the resin cover 50 includes a main body cover portion 52 that covers the upper surface and side surfaces of the curb main body 12, and an end cover portion 54 that covers the longitudinal ends (and end side surfaces) of the curb main body 12. .

As shown in FIG. 4 , the main body cover portion 52 hangs from an upper surface 52 a that covers the upper surface of the curb main body 12 and an end of the upper surface 52 a in a width direction (a direction orthogonal to the longitudinal direction), and It has a side surface 52b to cover. The end cover 54 may be formed integrally with the main body cover 52 or may be formed by bonding to the main body cover 52.

  The resin cover 50 is formed using a longitudinal base material 51 shown in FIG. The base material 51 is formed in a groove shape, and has an upper surface corresponding to the above-described upper surface 52a (end surface 54a) and a side surface corresponding to the side surface 52b (side surface 54b). The base material 51 includes a relatively thick inner layer 51a on the inner side, and an outer layer 51b integrated with the inner layer 51a and covering the outer surface of the inner layer 51a. The inner layer 51a is made of a relatively soft resin such as PVC, and the outer layer 51b is made of a relatively hard resin such as ABS (Acrylonitrile Butadiene Styrene). Since the ABS resin has not only a water repellent function but also excellent impact resistance and chemical resistance, it is suitable as the outer layer of the resin cover 50. That is, the outer layer 51b effectively protects the inner layer 51a (and thus the resin cover). Also, since the outer layer 51b has a water repellent function, raindrops and the like adhering to the surface of the outer layer 51b are repelled.

  Such a base material 51 can be manufactured by, for example, injection molding or extrusion molding. In this example, the height of the base material 51 was set to 30 mm.

  The materials of the inner layer 51a and the outer layer 51b of the base material 51 can be appropriately selected, and the thicknesses of the inner layer 51a and the outer layer 51b may be appropriately set according to the strength inherent to the material and the required strength.

  On the inner surface of the inner layer 51a of the base material 51, an appropriate number (two in the embodiment, both upper and side surfaces) of grooves 51c are formed so as to be continuous in the longitudinal direction. The groove 51c is provided to give flexibility to the resin cover 50 so that such fitting can be easily performed when the resin cover 50 is covered (fitted) on the curb body 12 as described later. .

  However, the groove 51c may not be provided, and when the groove 51c is provided, the number thereof may be an arbitrary number.

  Further, as can be clearly understood from FIG. 5, the base material 51 is formed such that the side surface is inclined inward toward the lower end. The inward inclination angle may be an appropriate angle, but is set to 5 ° in the embodiment. As described above, the reason why the side surface of the base material 51 is inclined inward is that when the resin cover 50 made of the base material 51 is fitted to the curb body 12, the side surfaces 52b and 54b are inwardly spring-loaded by the shape memory action. This is to make the effect appear. That is, when the resin cover whose side surface is inclined inward in this way is fitted to the curb body 12 whose side surface is vertical, the side surface of the resin cover is pushed and spread by the side surface of the curb body 12, so that a spring force against it acts. Thus, the resin cover 50 can be prevented from falling off from the curb main body 12.

  Further, since the base material 51 is provided with the relatively hard outer layer 51b having a water repellent function, the outer surface of the resin cover 50 can be effectively prevented from being damaged or stained.

  As shown in FIG. 6, for example, the resin cover 50 completed in this manner is put on the curb main body 12, and at the same time, the resin cover 50 is adhered to the curb main body 12 with an adhesive. For example, screws 56 are used to screw the side of the curb body 12 to the side. For this purpose, through holes may be formed in advance at corresponding positions on the side surface 52b of the main body cover 52 and the side surface of the curb main body 12. However, the screw 56 may be a tapping screw. When the curbstone main body 12 and the resin cover 50 are integrated, it is desirable that the surface where the longitudinal end surface of the curbstone main body 12 and the inner side surface of the end cover portion 54 are in contact is firmly bonded. Thus, the inner garden curb 10 shown in FIG. 7 is completed.

  The height of the resin cover 50 is, for example, 30 mm, and the width (of the surface) is 50 mm. Therefore, the height of the inner rim curb member 100 (FIG. 7) is 30 mm, and the width is 50 mm.

  When the resin cover 50 is used for a long period of time or frequently used, and the resin cover 50 is damaged or extremely dirty, the screws 56 are removed, the adhesive is peeled off, and the resin cover is replaced with a new resin cover.

  Then, as shown in FIG. 8, by inserting the insertion pin 14 into the pin receiver 22 of the socket 20, the inner rim curb device 10 can be installed on an athletic track.

  At this time, the lower surface of the spacer 24 abuts on the upper surface of the ground ground 18, and the curb body 12 can be prevented from bending toward the ground ground 18.

  Also, as shown in FIG. 9, the inner surface of the end cover portion 54 is outside the longitudinal end surface of the curb body 12, while the side surface 52b of the main body cover portion 52 and the end cover The respective edges of the side surfaces 54b of the portion 54 are firmly adhered to each other. Therefore, it is possible to reliably prevent the curb stone body 12 from being exposed from the resin cover 50.

  For example, in a low-temperature environment such as in winter, the resin cover 50 made of synthetic resin shrinks more than the curb body 12 made of metal. Therefore, if the end cover 54 is not provided, the main body cover 52 may be contracted and the curb main body 12 may be exposed. However, when the resin cover 50 shrinks, the inner surface of the end surface 54 a of the end cover portion 54 is hooked on the longitudinal end of the curb body 12. On the other hand, since the side surface 52b of the main body cover portion 52 and the side surface 54b of the end cover portion 54 are firmly bonded, the resin cover 50 does not shrink any further. That is, since the deformation of the resin cover 50 in the contracting direction is restricted by the curb main body 12 (the state shown in FIG. 9), the curb main body 12 is always inside the resin cover 50 and is not exposed.

  Further, in a high-temperature environment such as in summer, the resin cover 50 made of synthetic resin is larger than the curb main body 12 made of metal. Therefore, there is a possibility that a gap may be formed between the inner surface of the end surface 54a of the end cover portion 54 and the longitudinal end of the curb body 12, but the curb body 12 is always inside the resin cover 50 and is exposed. Never.

  Furthermore, since the surface of the resin cover 50 is covered with the water-repellent outer layer, the possibility of the surface being stained by raindrops or the like is reduced.

  In the above-described embodiment, the end cover 54 is joined to and integrated with the main body cover 52 by the side surface 54b, but is not limited thereto.

  For example, similarly to the embodiment, in addition to bonding the edges of the side surfaces 52a and 54b, the end surface 54a of the end cover 54 may be bonded to the edge of the upper surface 52a of the main body cover 52. .

  For example, the side surface 52b of the main body cover portion 52 has a length covering the longitudinal direction end portion of the curb main body 12 in the same manner as the upper surface 52a, and the end surface 54a of the end cover portion 54 is attached to the side surface edge and the upper surface 52a. Bonding is also conceivable.

Reference Signs List 10 inner curb device 12 curb body 14 insertion pin 50 resin cover 52 body cover 52a upper surface 52b side 54 end cover 56 screw 100 inner curb member

Claims (2)

It is made of metal and includes a curb body having a rectangular cross section and a fixed length, and a resin cover to be put on the curb body,
The resin cover,
A main body cover portion made of a synthetic resin, having a top surface covering the entire top surface of the curb body, and two main body cover portions side surfaces continuously covering the side surface of the curb body from the width direction side end of the top surface; and the main body cover portion An inner rim curb device comprising an end cover portion made of the same synthetic resin as described above and covering an end portion in a longitudinal direction of the main body cover portion. The inner curb device according to claim 1, wherein the resin cover includes an inner layer and a water-repellent outer layer formed outside the inner layer.

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