Wakka Cover

Abstract

To provide a ring cover attached to a ring of a corn bar capable of inhibiting the corn bar from getting off from the safety cone.SOLUTION: Each of ring covers 100 is fitted on a ring part A1 at each of both ends of a corn bar A bridged between safety cones B. The ring cover 100 includes: a circular ring cover portion 1; a cylindrical base cover portion 2 protruding outward in the radial direction of the ring cover portion 1; and a ring part housing chamber 3 constituted of an internal space spanning the ring cover portion 1 and the base cover portion 2. The ring part housing chamber 3 includes: a circular ring part housing chamber 31 provided inside the ring cover portion 1 along the circular shape of the ring cover portion; a base housing chamber 32 that is constituted of a cylindrical space inside the cover portion 2 and communicates with both ends of the ring part housing chamber 31; and a ring part insertion port 4 guiding the ring part A1 into the ring part housing chamber 3. The entire body is integrally molded from elastic resin.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a technique for preventing a cone bar, which is used by bridging a safety cone, from falling off the safety cone. [Background technology]

[0002] Conventionally, in restricted areas such as construction sites, cone-shaped safety cones are lined up at the boundary between areas where people pass, and so-called cone bars are placed between adjacent safety cones to prohibit people from entering.

[0003] Such a cone bar has a ring part made of hard resin that is attached to the tip of the safety cone, and is simply placed on the slope of the safety cone, so there is a problem that the cone bar can easily come off if the safety cone falls over due to a strong wind or a person hitting it.

[0004] Therefore, Patent Document 1 proposes a cone system in which a protruding stopper on the safety cone is passed through a recess on the inside of the hoop portion of the cone bar to prevent the cone bar from falling out.

[0005] However, the cone system of Patent Document 1 has the problem that ordinary safety cones that do not have a dedicated stopper cannot be used, so the inventor has proposed in another patent application that the hoop part of the cone bar be integrally molded from elastic resin, and that the safety cone be clamped using the contraction force of this elastic resin. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6656737 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the above proposal by the present inventors, it is necessary to replace the existing cone bar having a hoop portion made of hard resin with a cone bar having a hoop portion made of elastic resin. The present invention has been made in consideration of such problems, and aims to prevent cone bars from falling out of safety cones without having to replace existing cone bars with new ones. [Means for solving the problem]

[0008] The invention made to solve the above problem is a hoop cover that fits over the hoop portions on both ends of a cone bar that is hung over a safety cone, and is characterized in that it comprises a ring-shaped ring cover portion, a cylindrical base cover portion that protrudes radially outward from the ring cover portion, and a hoop portion accommodating chamber consisting of an internal space that spans the ring cover portion and the base cover portion, and the hoop portion accommodating chamber has a ring-shaped ring portion accommodating chamber that is provided inside the ring cover portion along the ring shape, a base accommodating chamber that is a cylindrical space inside the base cover portion and communicates with both ends of the ring portion accommodating chamber, and a hoop portion insertion port for introducing the hoop portion into the hoop portion accommodating chamber, and the entire unit is molded as a single unit from elastic resin.

[0009] The hoop cover of the present invention can be attached by covering the hoop portion of an existing cone bar. Furthermore, since the entire cover is integrally molded from an elastic resin, when the ring cover portion is attached to the safety cone, its elastic force allows it to clamp the safety cone. Furthermore, since the ring cover portion and base cover portion are integrally molded, the hoop cover of the present invention is less likely to come off the hoop portion of the cone bar.

[0010] The hoop insertion opening preferably has a ring insertion opening formed by a slit passing through the outer periphery of the ring cover and extending in the circumferential direction of the ring cover, and a base insertion opening formed by a pair of left and right slits that are continuous with the ring insertion opening and are provided on the side surface of the base cover so as to extend in the axial direction of the base cover. In this way, the diameter of the ring insertion opening becomes larger than the diameter of the ring, making it more difficult for the hoop cover to fall off the hoop of the cone bar.

[0011] The ring cover preferably has a cylindrical inner wall. This increases the contact area between the ring cover portion and the safety cone, increasing the friction between the ring cover portion and the safety cone, making it more difficult for the ring cover portion to fall off the safety cone.

[0012] The ring cover preferably has a grip portion protruding inward from its inner wall, which makes it even more difficult for the ring cover to fall off the safety cone. [Effects of the Invention]

[0013] As described above, the hoop cover of the present invention can be attached to an existing cone bar and effectively prevent the existing cone bar from falling off the safety cone. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view of a cone bar in a state in which a hoop cover according to a first embodiment of the present invention is attached to a hoop portion. FIG. [Figure 2] 2 is an exploded perspective view showing the hoop cover shown in FIG. 1 separated from the hoop portion of the cone bar. FIG. [Figure 3] FIG. 2 is a plan view of the loop cover shown in FIG. [Figure 4] FIG. 2 is a front view of the loop cover shown in FIG. [Figure 5] This is a right side view of the ring cover shown in Figure 1. [Figure 6]FIG. 4 is a cross-sectional view taken along line AA in FIG. [Figure 7] FIG. 7 is an enlarged view of part B in FIG. [Figure 8] 2A is a perspective view of the hoop cover shown in FIG. 1 covering up to the base of the hoop part of the cone bar, and FIG. 2B is a perspective view of the hoop cover covering up to half of the ring part. [Figure 9] 2 is a vertical cross-sectional view showing a state in which the hoop cover shown in FIG. 1 is fitted over a hoop portion of a cone bar. FIG. [Figure 10] 10 is a view showing a hoop cover according to a second embodiment of the present invention. [Figure 11] 10 is a view showing a hoop cover according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, however, the present invention is not limited to the following embodiments.

[0016] (First embodiment) Fig. 1 shows a state in which a hoop cover 100 according to a first embodiment of the present invention is attached to an existing cone bar A. As shown in Fig. 2, the existing cone bar A has hoop portions A1 fitted to both ends of a bar A2 made of a long resin pipe and fixed with screws C. As shown in Fig. 2, the hoop portion A1 of the existing cone bar A includes an annular ring portion A11 and a cylindrical base portion A12 extending radially outward from the outer circumferential surface of the ring portion A11, and the entire portion is integrally molded from hard resin.

[0017] As shown in Figures 3 to 5, the hoop cover 100 comprises a circular ring cover portion 1 that accommodates the ring portion A11 of an existing cone bar A, a cylindrical base cover portion 2 that accommodates the base portion A12 of the cone bar A, a hoop portion accommodating chamber 3 consisting of an internal space spanning the ring cover portion 1 and the base cover portion 2, and a hoop portion insertion port 4 for inserting the hoop portion A1 into the hoop portion accommodating chamber 3, and the entire unit is integrally molded from elastic resin.

[0018] As shown in Figures 6 and 7, the ring cover part 1 is formed in a hollow annular shape by a flattened cylindrical outer wall 11, an inner wall 12, and a pair of upper and lower (upper and lower in Figure 6) annular plate-like horizontal walls 14, 14, and is provided with an annular ring part accommodating chamber 31 inside, whose cross section is a slightly rectangular shape that is elongated in the vertical direction and that runs around the entire circumference of the ring cover part 1. As shown in Figures 4 and 5, a ring part insertion opening 41 is provided in the middle of the height direction of the outer wall 11, which consists of a slit that runs around the entire circumference of the ring cover part 1 and communicates with the ring part accommodating chamber 31 from the outside. In addition, six rectangular grip parts 13, 13, ... that protrude inward are arranged at equal intervals in the circumferential direction on the inner wall 12.

[0019] The base cover part 2 is cylindrical and extends radially outward from the ring cover part 1, and has a bottom wall 21 on the ring cover part 1 side and an opening 22 on the side away from the ring cover part 1. The base cover part 2 has a base accommodating chamber 32 consisting of a cylindrical internal space, and is provided with a pair of base insertion openings 42, 42 consisting of slits extending in the axial direction of the base cover part 2 on both the left and right sides (left and right in FIG. 5).

[0020] The hoop portion accommodating chamber 3 consists of a ring portion accommodating chamber 31 and a base portion accommodating chamber 32. Approximately half of the base cover portion 2 on the bottom wall 21 side is embedded in the ring cover portion 1, and both ends of the ring portion accommodating chamber 31 communicate with the base portion accommodating chamber 32 within the boundary between this embedded portion and the ring cover portion 1.

[0021] The hoop insertion opening 4 consists of a ring insertion opening 41 and a base insertion opening 42. As shown in Figures 4 and 5, the ring insertion opening 41 and the base insertion opening 42 are arranged to fit on the same plane. In other words, the ring insertion opening 41 and the base insertion opening 42 are formed to be aligned in a straight line when viewed from the front and from the side.

[0022] The elastic resin that makes up the hoop cover 100 is not particularly limited as long as the ring cover portion 1 can be manually expanded to some extent, and rubber materials such as ethylene propylene diene rubber (EPDM), butyl rubber (IIR), ethylene propylene rubber (EPM), silicone rubber (SiQ), natural rubber, and rubber-equivalent materials such as thermoplastic elastomer (TPE) can be used as appropriate. When integrally molding the cone backer 10, press working is preferred, but injection molding or cutting may also be used.

[0023] When the hoop portion A1 of the cone bar A is accommodated in the hoop cover 100, the ring portion A11 is inserted into the ring portion accommodation chamber 31 through the ring portion insertion opening 41 of the ring cover portion 1, and the base portion A12 is inserted into the opening 22 of the base cover portion 2, as shown by the dashed arrow in FIG. 2. For example, as shown in FIG. 8(a), first, the base cover portion 2 is placed over the base portion A12 from the inside of the ring portion A11. At this time, the root portions A11a, A11a of the ring portion A11 pass through the base insertion openings 42, 42, and the base portion A12 passes through the opening 22 of the base cover portion 2. Next, as shown in FIG. 8(b), the portion of the ring cover portion 1 above the ring portion insertion opening 41 is lifted from the end and passed through the inside of the ring portion A11, and the ring portion A11 is inserted into the ring portion insertion opening 41.

[0024] As described above, the hoop cover 100 according to the first embodiment can be attached to the hoop portion A1 of an existing cone bar, allowing the existing cone bar to be used as is. The ring cover portion of the hoop cover 100 has the same annular shape as the hoop portion A1, allowing the existing safety cone B to be used as is.

[0025] The entire hoop cover 100 is integrally molded from elastic resin, so by slightly pushing the safety cone B in so as to expand the diameter of the ring cover portion 1 or compress the inner wall 12 or grip portion 13, the safety cone can be clamped by the elastic force of the ring cover portion 1. Furthermore, because the ring cover portion 1 and base cover portion 2 are integrally molded, the hoop cover 100 is less likely to come off the hoop portion A1.

[0026] In addition, since the ring portion insertion port 41 of the hoop portion insertion port 4 of the hoop cover 100 is provided on the outer periphery of the ring cover portion, when the ring cover portion 100 is attached to the safety cone B, even if friction is applied to the inner wall 12 of the ring cover portion 1, the ring cover portion 1 is unlikely to come off from the ring portion A11.

[0027] Furthermore, since the inner wall 12 of the ring cover portion 1 of the hoop cover 100 has a cylindrical shape, a large frictional force is applied between the ring cover portion 1 and the safety cone B, making it difficult for the ring cover portion 1 to fall off the safety cone B.

[0028] In addition, the ring cover part 1 has a grip part 13 that protrudes inward from the inner wall 12, making it even more difficult for the ring cover part 1 to fall off the safety cone B.

[0029] (Second embodiment) Next, a hook cover 200 according to a second embodiment of the present invention will be described with reference to Fig. 10. However, in the second and subsequent embodiments, the same components as those in the first embodiment will be denoted by the same reference numerals, and the description thereof will be omitted.

[0030] The hoop cover 200 has a first ring portion insertion opening 241 that extends around half the circumference of the outer wall 11 of the ring cover part 1, a second ring portion insertion opening 243 that extends around the entire circumference of the inner wall 12, and a base insertion opening 242 that is provided on either the left or right side of the base cover part 2 so as to be continuous with the first ring portion insertion opening 241. This allows the hoop cover 200 to insert the hoop part A1 horizontally through the first ring portion insertion opening 241 and the base insertion opening 242.

[0031] (Third embodiment) 11 shows a hoop cover 300 according to a third embodiment of the present invention. The hoop cover 300 has a ring portion insertion opening 341 that runs along the entire circumference of the horizontal wall 14 on one side (the upper side in FIG. 11) of the ring cover portion 1, and a base portion insertion opening 342 that extends in a T-shape from the ring portion insertion opening 341 and passes through the upper surface of the base cover portion 2. This allows the hoop portion A1 to be inserted into the hoop cover 300 from above.

[0032] As described above, the hoop cover of the present invention is not limited to the above-described embodiment. For example, the inner surface of the ring cover portion does not have to be cylindrical. Furthermore, the ring cover portion does not have to have a grip portion, and may have a grip portion of a shape other than rectangular. The hoop cover of the present invention can also be attached to cone bars other than those described above. The hoop portion insertion opening is not particularly limited as long as it can accommodate the hoop portion, and is not limited to the above-described shape. [Explanation of symbols]

[0033] 100 Wakka Cover 1 Ring cover 11 Outer surface 12 Inner wall 13 Grip section 2 Base cover 3 Wakka Club Containment Room 31 Ring Section Containment Room 32 Base Containment Chamber 4 Hook insertion port 41 Ring insertion port 42 Base insertion port A Cone Bar A1 Wakka Club A11 Ring section A12 base B Safety cone

Claims

1. A hoop cover that fits over the hoop portions at both ends of the cone bar that spans the safety cone, a ring cover portion having an annular shape; a cylindrical base cover portion that protrudes radially outward from the ring cover portion; a hook portion accommodating chamber formed as an internal space spanning the ring cover portion and the base cover portion; Equipped with The hoop portion accommodating chamber includes a ring portion accommodating chamber that is provided inside the ring cover portion along the ring shape thereof, a base portion accommodating chamber that is a cylindrical space inside the base cover portion and communicates with both ends of the ring portion accommodating chamber, and a hoop portion insertion port that introduces the hoop portion into the hoop portion accommodating chamber, A hoop cover characterized in that the entire cover is integrally molded from elastic resin.

2. The hoop cover described in claim 1 has a ring portion insertion opening consisting of a slit that passes through the outer periphery of the ring cover portion and extends circumferentially of the ring cover portion, and a base portion insertion opening consisting of a pair of left and right slits that are continuous with the ring portion insertion opening and are provided on the side of the base cover portion so as to extend in the axial direction of the base cover portion.

3. The hoop cover according to claim 1 or 2, wherein the ring cover portion has a cylindrical inner wall.

4. 3. The hoop cover according to claim 2, wherein the ring cover portion has a grip portion protruding inward on an inner wall thereof.

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