JP2023170783A - Ring cover - Google Patents

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

The present invention relates to a technique for preventing a cone bar used by being placed over a safety cone from falling off the safety cone.

Conventionally, in restricted areas such as construction sites, conical safety cones are lined up at the border with areas where people pass, and so-called cone bars are strung between adjacent safety cones to prevent people from entering. .

In such a cone bar, the ring part attached to the tip of the safety cone is made of hard resin, and because it is simply placed on the slope of the safety cone, if the safety cone falls down due to a strong wind or a collision with a person, the cone bar will easily fall off. There is a problem with it coming off.

Therefore, Patent Document 1 proposes a cone system in which a protruding stopper provided on the safety cone is passed through a recess provided inside the wacker portion of the cone bar to prevent the cone bar from falling off. .

However, the cone system of Patent Document 1 has the problem that a normal safety cone without a dedicated stopper cannot be used, so the inventor of the present invention integrally molded the wacker part of the cone bar with an elastic resin. Another patent application proposes clamping the safety cone by means of contraction forces.

Patent No. 6656737

However, in the above proposal by the present inventors, it is necessary to replace the existing cone bar whose waxing part is made of a hard resin with a cone bar whose waxing part is made of an elastic resin.
The present invention has been made in view of this problem, and an object of the present invention is to suppress the cone bar from falling off from the safety cone without replacing the existing cone bar with a new cone bar.

The invention made to solve the above problem is a wacker cover that fits into the wacker parts at both ends of a cone bar that spans a safety cone, and includes a ring cover part having an annular shape, and a radial outer part of the ring cover part. A cylindrical base cover part that protrudes toward the ring cover part, and a wacker part accommodating chamber consisting of an internal space extending over the ring cover part and the base cover part, and the wacker part accommodating chamber is configured to accommodate a circular ring of the ring cover part. an annular ring part accommodation chamber provided inside the ring part accommodation chamber along the shape; a base accommodation chamber made up of a cylindrical space inside the base cover part and communicating with both ends of the ring part accommodation chamber; It has a wacker part insertion opening into which the wakka part is introduced, and is characterized in that the entire body is integrally molded from an elastic resin.

With this configuration, the wacker cover of the present invention can be attached to cover the wacker part of an existing cone bar. Since the entire ring cover is integrally molded with elastic resin, when the ring cover portion is attached to the safety cone, the safety cone can be held by its elastic force. Furthermore, since the ring cover portion and the base cover portion of the wacker cover of the present invention are integrally molded, it is difficult to separate from the wacker portion of the cone bar.

The wacker part insertion opening includes a ring part insertion opening consisting of a slit extending in the circumferential direction of the ring cover part through the outer periphery of the ring cover part, and a ring part insertion opening that is continuous with the ring part insertion opening and is formed on a side surface of the base cover part. It is preferable to have a base insertion opening consisting of a pair of left and right slits provided to extend in the axial direction of the base cover part. By doing this, the diameter of the ring part insertion opening becomes larger than the diameter of the ring part, so that the wacker cover becomes more difficult to fall off from the wacker part of the cone bar.

It is preferable that the ring cover part has a cylindrical inner wall.
By doing so, the contact area between the ring cover part and the safety cone can be increased, and the friction between the ring cover part and the safety cone can be increased, so that the ring cover part becomes more difficult to fall off from the safety cone.

It is preferable that the ring cover part has a grip part protruding inwardly on the inner wall. By doing so, the ring cover part can be made more difficult to fall off from the safety cone.

As described above, the wacker 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.

FIG. 2 is a perspective view of the cone bar in a state where the wacker cover according to the first embodiment of the present invention is attached to the wacker part. FIG. 2 is an exploded perspective view showing the wacker cover shown in FIG. 1 separated from the wacker part of the cone bar. FIG. 2 is a plan view of the Wakka cover shown in FIG. 1. FIG. FIG. 2 is a front view of the Wakka cover shown in FIG. 1. FIG. This is the right side of the Wakka cover shown in FIG. 1. FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. 7 is an enlarged view of part B in FIG. 6. FIG. FIG. 2 is a perspective view of the wacker cover shown in FIG. 1 in a state in which (a) the base of the wacker part of the cone bar is covered, and (b) a perspective view in a state in which it is covered up to half of the ring part. FIG. 2 is a longitudinal cross-sectional view of the wacker cover shown in FIG. 1 in a state where it is fitted onto the wakka portion of the cone bar. It is a wakka cover according to a second embodiment of the present invention. It is a wakka cover according to a third embodiment of the present invention.

Embodiments of the present invention will be described in detail below using appropriate drawings. However, the present invention is not limited to the following embodiments.

(First embodiment)
FIG. 1 shows a state in which a wakka cover 100 according to a first embodiment of the present invention is attached to an existing cone bar A. In the existing cone bar A, as shown in FIG. 2, the bar A2 is made of a long resin pipe, and the wacker parts A1 are fitted to both ends of the bar A2, and the cone bar A is fixed with a screw C. As shown in FIG. 2, the wacker portion A1 of the existing cone bar A includes a ring portion A11 having an annular shape and a cylindrical base portion A12 extending radially outward from the outer peripheral surface of the ring portion A11. The entire body is integrally molded from hard resin.

As shown in FIGS. 3 to 5, the Wakka cover 100 includes an annular ring cover portion 1 that accommodates the ring portion A11 of the existing cone bar A, and a cylindrical base cover portion that accommodates the base portion A12 of the cone bar A. 2, a wacker part accommodating chamber 3 consisting of an internal space extending over the ring cover part 1 and the base cover part 2, and a wacker part insertion opening 4 for inserting the wacker part A1 into the wacker part accommodation chamber 3, It is integrally molded from elastic resin.

As shown in FIGS. 6 and 7, the ring cover portion 1 is formed into a hollow space by a flat cylindrical outer wall 11, an inner wall 12, and a pair of upper and lower (upper and lower in FIG. 6) annular plate-shaped horizontal walls 14, 14. It is formed in an annular shape, and is provided with an annular ring part storage chamber 31 that extends around the entire circumference of the ring cover part 1 and has a rectangular cross section that is slightly elongated in the vertical direction. In the middle of the outer wall 11 in the height direction, as shown in FIG. 4 and FIG. It is provided. Further, on the inner wall 12, six rectangular grip portions 13, 13, . . . that protrude inward are arranged at equal intervals in the circumferential direction.

The base cover part 2 has a cylindrical shape extending radially outward from the ring cover part 1, has a bottom wall 21 on the ring cover part 1 side, and has an opening 22 on the side far from the ring cover part 1. are doing. The base cover part 2 has a base housing chamber 32 consisting of a cylindrical internal space, and a pair of base insertion openings 42 consisting of slits extending in the axial direction of the base cover part 2 on both left and right sides (left and right in FIG. 5). 42 are provided.

The wacker portion storage chamber 3 includes a ring portion storage chamber 31 and a base portion storage chamber 32. Approximately half of the base cover part 2 on the bottom wall 21 side is embedded in the ring cover part 1, and inside the boundary between this embedded part and the ring cover part 1, both ends of the ring part accommodation chamber 31 are connected to the base accommodation chamber. It is connected to 32.

The wacker part insertion port 4 consists of a ring part insertion port 41 and a base part insertion port 42. The ring part insertion port 41 and the base part insertion port 42 are provided so as to fit on the same plane, as shown in FIGS. 4 and 5. In other words, the ring part insertion opening 41 and the base insertion opening 42 are formed so as to be aligned in a straight line when viewed from the front and from the side.

The elastic resin constituting the Wakka cover 100 is not particularly limited as long as the diameter of the ring cover portion 1 can be expanded to some extent manually, and examples include ethylene propylene diene rubber (EPDM), butyl rubber (IIR), and ethylene propylene rubber ( In addition to rubber materials such as EPM), silicone rubber (SiQ), and natural rubber, materials equivalent to rubber such as thermoplastic elastomer (TPE) can be used as appropriate. When integrally molding the corn backer 10, press working is preferred, but injection molding or cutting may also be used.

When accommodating the wacker part A1 of the cone bar A in the wakka cover 100, the ring part A11 is inserted into the ring part accommodation chamber 31 from the ring part insertion opening 41 of the ring cover part 1, as shown by the dashed-dotted arrow in FIG. and insert the base A12 into the opening 22 of the base cover part 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 ports 42, 42, and the base portion A12 passes through the opening 22 of the base cover portion 2. Continuously, as shown in FIG. 8(b), lift the upper part of the ring cover part 1 from the ring part insertion opening 41 in order from the end and pass it through the inside of the ring part A11, and insert the ring part A11 into the ring part insertion opening 41. insert.

As described above, according to the wacker cover 100 according to the first embodiment, since it can be attached to the wacker part A1 of an existing cone bar, the existing cone bar can be used as is. Since the ring cover part of the wacker cover 100 has the same annular shape as the wakka part A1, the existing safety cone B can be used as is.

The entire Wakka cover 100 is integrally molded with elastic resin, so by slightly pushing the safety cone B so as to expand the diameter of the ring cover part 1 or compress the inner wall 12 and grip part 13, the ring can be removed. The safety cone can be held by the elastic force of the cover part 1. In addition, since the ring cover part 1 and the base cover part 2 are integrally molded, the wakka cover 100 is difficult to come off from the wakka part A1.

In addition, since the ring part insertion opening 41 of the wacker part insertion opening 4 is provided on the outer periphery of the ring cover part, the wakka cover 100 causes friction against the inner wall 12 of the ring cover part 1 when it is attached to the safety cone B. Even if the ring cover portion 1 is applied, the ring cover portion 1 is difficult to come off from the ring portion A11.

Furthermore, in the Wakka cover 100, since the inner wall 12 of the ring cover part 1 has a cylindrical shape, the frictional force applied between the ring cover part 1 and the safety cone B is large, and the ring cover part 1 is difficult to fall off from the safety cone B.

In addition, since the ring cover part 1 has the grip part 13 protruding inward on the inner wall 12, it becomes even more difficult for the ring cover part 1 to fall off from the safety cone B.

(Second embodiment)
Next, a Wakka cover 200 according to a second embodiment of the present invention will be described using FIG. 10. However, in embodiments after the second embodiment, members common to those in the first embodiment are given the same reference numerals, and explanations thereof will be omitted.

The Wakka cover 200 has a first ring part insertion opening 241 extending about half the circumference of the outer wall 11 of the ring cover part 1 , a second ring part insertion opening 243 extending around the entire circumference of the inner wall 12 , and the left and right sides of the base cover part 2 . A base insertion port 242 is provided on one side of the ring portion 242 so as to be continuous with the first ring portion insertion port 241 . By doing so, the wakka cover 200 allows the wakka part A1 to be inserted horizontally through the first ring part insertion opening 241 and the base insertion opening 242.

(Third embodiment)
FIG. 11 shows a wakka cover 300 according to a third embodiment of the present invention. The Wakka cover 300 has a ring part insertion opening 341 extending around the entire circumference of the horizontal wall 14 on one side (the upper side in FIG. 11) of the ring cover part 1, and a T-shaped extension from the ring part insertion opening 341 to the base cover part 2. A base insertion opening 342 passing through the upper surface is provided. By doing so, the wacker part A1 can be inserted into the wakka cover 300 from above.

As mentioned above, the Wakka cover of the present invention is not limited to the embodiments described above, and for example, the inner surface of the ring cover part does not have to be cylindrical. Further, the ring cover part does not need to include a grip part, and may be provided with a grip part having a shape other than a rectangle. The Wakka cover of the present invention can also be attached to cone bars other than those mentioned above. The wacker part insertion opening is not particularly limited as long as the wakka part can be inserted therein, and is not limited to the shape described above.

100 Wacker cover 1 Ring cover portion 11 Outer surface 12 Inner wall 13 Grip portion 2 Base cover portion 3 Wacker portion storage chamber 31 Ring portion storage chamber 32 Base storage chamber 4 Wacker portion insertion port 41 Ring portion insertion port 42 Base insertion port A Cone bar A1 Wacker part A11 Ring part A12 Base B Safety cone

Claims (4)

A wacker cover that fits over the wakka portions at both ends of the cone bar that spans the safety cone,
A ring cover part forming an annular shape,
a cylindrical base cover portion that protrudes outward in the radial direction of the ring cover portion;
comprising a wacker part storage chamber consisting of an internal space spanning the ring cover part and the base cover part,
The wacker part accommodating chamber includes an annular ring part accommodating chamber provided inside the ring cover part along the annular shape thereof, and a cylindrical space inside the base cover part, and both ends of the ring part accommodating chamber are It has a base storage chamber communicating with the wacker part storage chamber, and a wacker part insertion port for introducing the wakka part into the wakka part storage chamber,
Wakka cover is characterized by being entirely integrally molded from elastic resin. The wacker part insertion opening includes a ring part insertion opening consisting of a slit extending in the circumferential direction of the ring cover part through the outer periphery of the ring cover part, and a ring part insertion opening that is continuous with the ring part insertion opening and is formed on a side surface of the base cover part. The Wakka cover according to claim 1, further comprising a base insertion opening consisting of a pair of left and right slits extending in the axial direction of the base cover part. The Wakka cover according to claim 1 or 2, wherein the ring cover portion has a cylindrical inner wall. 3. The Wakka cover according to claim 2, wherein the ring cover portion has a grip portion protruding inwardly on an inner wall.

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