Cone bar fitting body, cone bar and road cone-cone bar assembly set

Abstract

To provide a cone bar capable of easily and surely removing an annular fitting body fitted from the upper part of a road cone. [Solution] The fitting body 20B includes an annular portion 30B that fits into the upper part of the road cone, and a grip portion 40B having an attachment portion 45B provided therein for attachment to the bar body 11B. The annular portion 30B is divided in a line-symmetrical manner in the axial direction of the bar body 11B. Each annular part 32B constituting the annular portion 30B is bendable (rotatable) in the vertical direction relative to the grip portion 40B, and the annular parts 32B can be restored to their original state after bending by a coil spring 33B.

Description

[Technical field]

[0001] The present invention relates to a cone bar that is installed between road cones (so-called color cones: registered trademark). [Background technology]

[0002] Although road cones may be used by themselves, they are often used by connecting two road cones with a cone bar (see FIG. 5 of Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 2-89007 [Patent Document 2] Patent No. 7162316 Summary of the Invention [Problem to be solved by the invention]

[0004] FIG. 24 illustrates a state in which a cone bar 60 is installed between road cones 50. The cone bars 60, 60, ... are successively installed between the road cones 50, 50. Therefore, the annular fitting bodies 62, 62 provided at both ends of the cone bar 60 always overlap with the fitting bodies 62, 62 of the adjacent cone bars 60.

[0005] When it becomes necessary to remove a specific cone bar 60 due to the entry and exit of people, changes in the traffic zone, etc., the fitting body 62 located on the upper side can be easily removed (fitting body 62 in FIG. 14(2) shown by an "O" mark), but the fitting body 62 located on the lower side cannot be easily removed (fitting body 62 in FIG. 14(3) shown by an "X" mark). In other words, in order to remove the fitting body 62 located on the lower side, it is necessary to first remove the fitting body 62 located on the upper side.

[0006] Therefore, the present inventors have completed the patented invention disclosed in Patent Document 2 in order to solve the problems of the conventional cone bar described above and provide a cone bar that allows the fitting body to be easily and reliably removed from the upper part of the road cone. The present inventors have further developed this invention to complete the present invention. [Means for solving the problem]

[0007] (Invention relating to cone bar fitting) The first invention of the present application is a cone bar fitting provided at both ends or one end of a rod-shaped bar main body that constitutes a cone bar installed between road cones, the cone bar fitting having an annular portion that fits into the upper part of the road cone, and being divided at the tip of the annular portion which forms the end of the cone bar, and by rotating the installed cone bar in a circumferential direction, the tip of the annular portion separates in the vertical direction, thereby releasing the fitting with the upper part of the road cone. The second invention is a cone bar fitting according to the first invention, characterized in that the cone bar fitting has a gripping portion with an attachment portion provided inside or outside for attachment to the bar body, and each of the divided annular portions is bendable in the vertical direction relative to the gripping portion and has a restoring force after bending. The third invention is a cone-bar fitting according to the second invention, characterized in that each of the divided annular portions can be opened and closed in the left-right direction, and further, the grip portion is provided with an operating lever for controlling a biasing member that biases the annular portions to a closed state. The fourth invention is a cone bar fitting according to the second or third invention, characterized in that the gripping portion and the mounting portion are connected via a connection portion, and the connection portion has a linkage control function that links the rotation of either the gripping portion or the mounting portion to the rotation of the other only when the either one is rotated circumferentially by a certain angle or more. A fifth invention is a cone-bar fitting according to any one of the first to fourth inventions, characterized in that a magnet is provided on each of the contact surfaces of the tip ends of the divided annular portions.

[0008] (Invention relating to cone burrs) The sixth invention of the present application is a cone bar that is installed between road cones, and is characterized in that both or one of the cone bar fittings, which are provided at both ends of a rod-shaped bar body and have annular annular portions that fit into the upper part of the road cone, are divided at the tips of the annular portions that form the ends of the cone bar, and by rotating the installed cone bar in a circumferential direction, the tips of the annular portions are separated in the vertical direction, thereby releasing the fitting with the upper part of the road cone. The seventh invention is a cone bar according to the sixth invention, characterized in that the cone bar is provided with a gripping portion having an attachment portion provided inside or outside for attachment to the bar body, and each of the divided annular portions is capable of being bent in the vertical direction relative to the gripping portion and also has the ability to restore its shape after bending. The eighth invention is a cone bar according to the seventh invention, characterized in that each of the divided annular portions can be opened and closed in the left-right direction, and further characterized in that the grip portion is provided with an operating lever for controlling a biasing member that biases the annular portions to a closed state. The ninth invention is a cone bar according to the seventh or eighth invention, characterized in that the gripping portion and the mounting portion are connected via a connection portion, and the connection portion has a linkage control function that links the rotation of either the gripping portion or the mounting portion to the rotation of the other only when the other portion is rotated in the circumferential direction by a certain angle or more. A tenth invention is a cone burr according to any one of the sixth to ninth inventions, characterized in that a magnet is provided on each of the contact surfaces at the tip of the divided annular portion.

[0009] (Invention of road cone and cone bar assembly set) An eleventh invention is a road cone / cone bar assembly set comprising a road cone and a cone bar according to any one of the sixth to tenth inventions.

[0010] (Invention in which the bar body is a telescopic bar) The 12th invention is a cone bar fitting according to any of the first to fifth inventions, characterized in that the bar body is composed of an outer tube and an inner tube, and when one of the outer tube or the inner tube is fixed, the other is freely extendable and rotatable. The 13th invention is a cone burr according to any of the 6th to 10th inventions, characterized in that the burr body is composed of an outer tube and an inner tube, and when one of the outer tube or the inner tube is fixed, the other is freely extendable and rotatable. The fourteenth invention is a road cone / cone bar assembly set comprising a road cone and the cone bar of the thirteenth invention. Effect of the Invention

[0011] The present invention has the following advantages. (1) By simply rotating (twisting) the installed cone bar (or bar body, etc.) in the circumferential direction, the divided annular tip can be separated in the vertical direction, and the cone bar and the road cone (upper part of the cone) can be released from their engagement (fitting). In other words, even if there is a cone bar fitting of an adjacent cone bar above the cone bar fitting, the presence of the upper cone bar fitting does not interfere with the removal of the cone bar fitting from the upper part of the road cone. (2) Since each of the divided annular parts can be bent in the vertical direction relative to the grip part of the cone bar fitting, the tips of the divided annular parts can be easily separated in the vertical direction, and the fitting can be removed from the road cone more smoothly. In addition, even if one of the cone bar fittings is removed from the road cone while the other cone bar fitting is still fitted to the top of the road cone and the bar main body is lifted, the annular part of the cone bar fitting that remains fitted will be bent, so that the bent part will serve as a fulcrum and the bar main body can be moved smoothly, allowing people (workers, etc.) to pass through (enter and exit the cone bar) in a natural posture. In addition, when the cone bar is returned to its original state after the bar main body is lifted, the bent part of the cone bar fitting that remains fitted will not deform due to its restoring force and will return to the state it was in before the bar main body was lifted (it will not remain bent). (3) Each of the divided annular portions can be opened and closed in the left-right direction. Furthermore, an operating lever that controls a biasing member that biases the annular portion to a closed state is provided in the gripping portion. This makes it possible not only to rotate the cone bar in the circumferential direction, but also to reverse the biasing force on the annular portion by operating the operating lever, thereby rotating the annular portion to an open state and removing the cone bar fitting portion from the road cone. (4) The gripping part and the mounting part are connected via a connecting part, and the connecting part has an "interlocking control function" that interlocks the rotation of either the gripping part or the mounting part with the other only when the other part rotates in the circumferential direction by a certain angle or more, creating "play (room)" for circumferential rotation between the cone bar fitting and the bar body. This allows one cone bar fitting to be smoothly removed from the top of the road cone while the other cone bar fitting is still fitted into the top of the road cone. (5) By providing a magnet on each of the contact surfaces at the tip of the divided annular portions, the contact surfaces can more easily come into contact when each annular portion that has been separated in the vertical or horizontal direction returns to its original state, thereby reliably restoring the alignment of the annular portions. (6) The bar body is composed of an outer tube and an inner tube. When either the outer tube or the inner tube is fixed, the other can freely rotate. This allows either the inner tube or the outer tube to exhibit an "interlocking control function." This allows one cone bar fitting to remain fitted into the top of the road cone while the other cone bar fitting can be smoothly removed from the top of the road cone. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is an explanatory diagram (1) for explaining a first embodiment of the present invention. [Diagram 2] FIG. 2 is an explanatory diagram for explaining the first embodiment of the present invention. [Diagram 3] FIG. 3 is an explanatory diagram for explaining the first embodiment of the present invention. [Figure 4] FIG. 1 is an explanatory diagram (1) for explaining a second embodiment of the present invention. [Diagram 5] FIG. 2 is an explanatory diagram (2) for explaining a second embodiment of the present invention. [Figure 6]FIG. 3 is an explanatory diagram for explaining a second embodiment of the present invention. [Figure 7] FIG. 4 is an explanatory diagram for explaining a second embodiment of the present invention. [Figure 8] FIG. 5 is an explanatory diagram (5) for explaining a second embodiment of the present invention. [Figure 9] FIG. 11 is an explanatory diagram (1) for explaining a third embodiment of the present invention. [Figure 10] FIG. 2 is an explanatory diagram (2) for explaining a third embodiment of the present invention. [Figure 11] FIG. 3 is an explanatory diagram (3) for explaining a third embodiment of the present invention. [Figure 12] FIG. 4 is an explanatory diagram for explaining a third embodiment of the present invention. [Figure 13] FIG. 5 is an explanatory diagram (5) for explaining a third embodiment of the present invention. [Figure 14] FIG. 11 is an explanatory diagram (1) for explaining a fourth embodiment of the present invention. [Figure 15] FIG. 13 is an explanatory diagram (2) for explaining the fourth embodiment of the present invention. [Figure 16] FIG. 11 is an explanatory diagram (1) for explaining a fifth embodiment of the present invention. [Figure 17] FIG. 13 is an explanatory diagram (2) for explaining the fifth embodiment of the present invention. [Figure 18] FIG. 13 is an explanatory diagram (1) for explaining a sixth embodiment of the present invention. [Figure 19] FIG. 2 is an explanatory diagram for explaining the sixth embodiment of the present invention. [Figure 20] FIG. 13 is an explanatory diagram (1) for explaining a seventh embodiment of the present invention. [Figure 21] FIG. 13 is an explanatory diagram (2) for explaining the seventh embodiment of the present invention. [Figure 22] FIG. 1 is an explanatory diagram (1) for explaining the fourth to seventh embodiments of the present invention. [Diagram 23] FIG. 2 is an explanatory diagram for explaining the fourth to seventh embodiments of the present invention. [Figure 24] FIG. 1 is an explanatory diagram showing a problem with a conventional cone bar. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the cone bar according to the present invention will be described with reference to the drawings. Note that the embodiment described below is an example of the present invention, and the present invention is not limited thereto.

[0014] 1 to 3 are explanatory views illustrating a first embodiment of a cone bar according to the present invention. 1(a) shows a cone bar fitting 20A (hereinafter referred to as "fitting body 20A") provided at both ends or one end of a rod-shaped bar main body 11A that forms the main body of the cone bar. The fitting body 20A includes an annular portion 30A that fits into the upper part of the road cone, and an attachment portion 45A for attaching to the bar main body 11A. 1(b), the annular portion 30A has a divided tip 31A (the end of the cone bar). The annular portion 30A may be made of, for example, elastic plastic or rubber.

[0015] FIG. 2 illustrates a state in which the fitting body 20A fitted to the cone upper portion 51 of the road cone 50 is removed. When the cone bar (bar main body 11A or mounting part 45A) is rotated (twisted) in its circumferential direction (the direction of rotation does not matter; this is the same in other embodiments) as shown in Fig. 2(b) from the state in which the annular part 30A of the fitting body 20A is fitted into the main body part 51 shown in Fig. 2(a), the annular part 30A also rotates in conjunction with it. At that time, since the inner diameter part of the annular part 30A abuts against the cone upper part 51, "friction" occurs, and the divided tip 31A of the annular part 30A separates, creating a gap (clearance). As a result, the fitting body 20A can be removed from the main body 51 as shown in FIG. 2(c).

[0016] FIG. 3 shows an example of use in which fitting bodies 20A, 20A are provided on both ends of a bar body 11A of a cone bar 10A. 3(a) shows a state in which both fitting bodies 20A, 20A of the cone bar 10A are below the fitting body 20 of the adjacent cone bar 10. In this state, with a conventional cone bar, the cone bar could not be removed unless the fitting body 20 of the adjacent upper cone bar 10 was removed first. However, as shown in FIG. 3(b), the tip 31A of the annular portion 30A can be separated (opened) simply by rotating (twisting) the bar body 11A of the cone bar 10A in the circumferential direction. As shown in FIG. 3(c), the fitting bodies 20A, 20A can be removed from the cone upper parts 51, 51 while leaving the fitting bodies 20, 20 of the adjacent cone bars 10, 10 as they are. This usage example can be similarly explained in the second and third embodiments described later.

[0017] 4 to 8 are explanatory views illustrating a second embodiment of the cone bar according to the present invention. 4(a) shows a cone bar fitting 20B (hereinafter referred to as "fitting body 20B") provided at both ends or one end of a rod-shaped bar body 11B that forms the main body of the cone bar. The fitting body 20B includes an annular portion 30B that fits into the upper part of the road cone, and a gripping portion 40B having an attachment portion 45B provided therein for attachment to the bar body 11B. As shown in FIG. 4(b), the annular portion 30B is divided in a line-symmetrical manner in the axial direction of the bar body 11B. Each annular part 32B constituting the annular portion 30B is bendable (rotatable) in the vertical direction relative to the gripping portion 40B. In addition, the annular part 32B is restored after bending, so that it is positioned on the same line as the bar body 11B and the gripping portion 40B when no stress is applied, forming an annular portion 30B with no gap (clearance) at the tip 31B. In the second embodiment, a coil spring 33B is used to restore the annular part 32B (the coil spring 33B may be either a tension spring or a compression spring), but is not limited to this as long as it provides a restoring force. In addition, a magnet 35B is provided on the tip abutment surface 34B of each annular part 32B constituting the tip 31B of the annular portion 30B (the same applies to the third embodiment). As a result, when the annular parts 32B separated in the vertical direction are restored, the tip abutment surfaces 34B are easily brought into contact with each other, and the alignment state of the annular portion 30B can be reliably restored and maintained.

[0018] 4(a) and (b) also show that the grip portion 40B has an internal attachment portion 45B for attachment to one end of the bar body 11B. The relationship between the grip portion 40B and the attachment portion 45B will be described in detail with reference to FIG. As shown in FIG. 5, mounting portion 45B has two rows of circumferentially parallel protrusions 48B, 49B, which allows the mounting portion 45B to rotate stably within gripping portion 40B, and a C-shaped stopper 44B inserted into gripping portion 40B abuts against protrusions 49B, preventing mounting portion 45B from coming off gripping portion 40B. The mounting portion 45B has a torsion spring 47B on its tip surface 46B, which is engaged with a locking projection 43B provided on the side surface 42B of the grip portion 40B. The connecting portion 40B and the mounting portion 45B are connected to each other.And, using this torsion spring 47B as a play part, between the gripping part 40B and the mounting part 45B, rotation (twisting) in one circumferential direction does not directly cause rotation (twisting) in the other circumferential direction. For rotations below a certain angle, the torsion spring 47B absorbs the rotation and has an "interlocking control function" to control the interlocking of the rotational motion. This can be said to play the role of a so-called "play (margin)" like that in an automobile steering wheel. The rotation angle absorbed by this interlocking control function is defined as the "play angle", and the detailed role will be described in FIGS. 7 and 8 below. Note that the play part having the interlocking control function and interposed between the gripping part 40B and the mounting part 45B is not limited to a torsion spring.

[0019] FIG. 6 shows the state of removing the fitting body 20B fitted to the upper part 51 of the cone of the load cone 50. From the state where the annular part 30B of the fitting body 20B is fitted to the upper part 51 of the cone shown in FIG. 6(a), when the gripping part 40B is rotated (twisted) in its circumferential direction as shown in FIG. 6(b), the annular part 30B (annular parts 32B, 32B) also rotates in conjunction therewith. At that time, since the inner diameter part of the annular part 30B (annular parts 32B, 32B) is in contact with the upper part 51 of the cone, "friction" is generated, and the tips 31B of the divided annular part 30B (annular parts 32B, 32B) are separated, creating a gap (clearance). As a result, as shown in FIG. 6(c), the fitting body 20B can be removed from the upper part 51 of the cone.

[0020] First, in FIG. 7(a), the relationship between the rotation angle of the gripping part 40B and the rotation angle of the bar body 11B is explained. As shown in the figure, when the right gripping part 40B is gripped and the rotation angle is X degrees, and the play angle absorbed by the gripping part 40B due to the interlocking control function of the play part 47B (not shown) is x degrees, the relationship with the rotation angle Y degrees of the bar body 11B is as follows. "Rotation angle Y degrees of the bar body 11B = X degrees - x degrees (however, when X degrees < x degrees, Y degrees = 0 degrees = no rotation)" Also, when the left gripping part 40B is gripped and the rotation angle is Z degrees, and the play angle absorbed by the interlocking control function of the play part 47B (not shown) is z degrees, the relationship with the rotation angle Y degrees of the bar body 11B is as follows. "Rotation angle Y degrees of bar body 11B = Z degrees - z degrees (however, when Z degrees < z degrees, Y degrees = 0 degrees = no rotation)"

[0021] And when shown in Fig. 7(b), when the right gripping part 40B is rotated 30 degrees, the right annular part 30B can be removed from the cone upper part 51. However, when the play angle of 30 degrees is absorbed by the interlocking control function of the gripping part 40B, the rotation angle Y degrees of the bar body 11B is as follows. "Rotation angle Y degrees of bar body 11B = 30 degrees - 30 degrees = 0 degrees" Therefore, even if the gripping part 40B is rotated, the bar body 11B does not rotate. Since the bar body 11B does not rotate, the left annular part 30B remains fitted to the cone upper part 51.

[0022] Next, as shown in Fig. 7(c), when the right gripping part 40B is rotated 80 degrees and the play angle of the gripping part 40B is 30 degrees by the interlocking control function, 30 degrees of it is absorbed. Therefore, the rotation angle Y degrees of the bar body 11B is as follows. "Rotation angle Y degrees of bar body 11B = 80 degrees - 30 degrees = 50 degrees" The bar body 11B will rotate 50 degrees. Then, when the left gripping part 40B has a play angle of 30 degrees by the interlocking control function, 30 degrees of it will be absorbed. The rotation angle Z of the left gripping part 40B is as follows. "Rotation angle Z degrees of left gripping part 40B = 50 degrees (Y degrees) - 30 degrees (z degrees) = 20 degrees" That is, when the rotation angle Y degrees of the bar body 11B is 50 degrees, the rotation angle Z degrees of the left gripping part 40B becomes 20 degrees, and the annular part 30B can be removed from the cone upper part 51. Therefore, when the rotation angle Y degrees of the bar body 11B is 50 degrees, the right gripping part 40B also rotates, so it is also possible to remove both annular parts 30B, 30B from the cone upper parts 51, 51.

[0023] FIG. 8 illustrates an example of the cone bar 10B in use. As shown in Fig. 8(a), a cone bar 10B is installed between two road cones 50 to form a control zone. A person A is attempting to move beyond this control zone. 8(a) and 8(b), even if both fitting bodies 20B, 20B are located below the fitting bodies 20 of the adjacent cone bars 10, traveler A can grasp the gripping portion 40B of the fitting body 20B that he wishes to remove (the fitting body 20B on the right side in the figure) and rotate (twist) it in the circumferential direction as shown in FIG. 7(b), thereby removing only the fitting body 20B of the gripping portion 40B that he has grasped and rotated from the main body portion 51.

[0024] That is, the "linked control function" of the play portion 47B shown in Fig. 7 absorbs the rotation angle of the rotated grip portion 40B (the right grip portion 40B in the figure), so the bar body 11B does not rotate (no rotation), and the other grip portion 40B (the left grip portion 40B in the figure) that is not being gripped naturally does not rotate (no rotation). Therefore, when the fitting body 20B is removed from the cone upper portion 51 by the rotation of one grip portion 40B (the right grip portion 40B in the figure), the coil springs 33B, 33B (not shown) of the other fitting body 20B (the left fitting body 20B in the figure) are bent while remaining fitted to the cone upper portion 51, and the bar body 11B moves in an arc with this as a fulcrum. This ensures a sufficient width for the moving person A to pass through, and he can move to the outside of the regulation zone without difficulty and safely.

[0025] 8(c), when the bar body 10B is returned to its original state after the mover A passes through the restriction zone, the restoring force of the coil springs 33B, 33B (not shown), which served as the fulcrum, works, and the cone bar 10B, which was bent into an approximately V-shape, returns to its original state (straight state) without plastic deformation. As a result, without applying any particular force (stress), the mover A can smoothly fit the fitting body 20B into the cone upper part 51 by simply guiding the removed fitting body 20B to the cone upper part 51, and the original state of the restriction zone (the state of FIG. 8(a)) can be restored. This usage example can be explained in the same manner in the third embodiment described later.

[0026] 9 to 13 are explanatory views illustrating a third embodiment of the cone bar according to the present invention. Figure 9(a) shows an exploded view of a cone bar fitting 20C (hereinafter referred to as "fitting body 20C") that is provided at both ends or one end of the rod-shaped bar body that forms the main body of the cone bar, and Figure 9(b) shows an assembly view of the same fitting body 20C. The fitting body 20C includes an annular portion 30C that fits onto the upper portion of the road cone, and a gripping portion 40C having an attachment portion 45C provided on its exterior for attachment to the bar body. The fitting body 20C differs from the fitting body 20B of the second embodiment in that each annular part 32C constituting the annular portion 30C is not only bendable (rotatable) in the vertical direction relative to the gripping portion 40C (including the restoring force after bending), but also openable and closable in the horizontal direction. In detail, the stress from the coil spring 36C (a compression spring is used in the figure, but a pull spring may also be used) as a biasing member in the gripping portion 40C is transmitted to each annular part 32C, 32C via the operating member 37C, and biases each annular part 32C, 32C to a closed state. The coil spring 36C is controlled by an operating lever 38C, and the biasing force of the coil spring 36C can be reversed by operating the operating lever 38C. As a result, the tip 31C of the annular portion 30C is rotated to an open state, and the fitting body 20C can be removed from the road cone 50.

[0027] FIG. 10 illustrates the operations of the fitting body 20C described with reference to FIG. First, Fig. 10(a) illustrates a state in which the annular parts 32C, 32C of the annular portion 30C are movable in the up-down direction. This movement is realized by the annular parts 32C, 32C being provided with a "bending function" (bending force by the coil spring) that allows them to be bent separately with respect to the gripping portion 40C by the coil springs 33C, 33C (the same applies to the annular parts 32B, 32B of the second embodiment). In addition, by providing a "restoring function" (restoring force by the coil spring), the annular part 30C can maintain the closed annular shape of the tip 31C when no stress is applied to the annular parts 32C, 32C. Next, Fig. 10(b) illustrates a state in which the annular parts 32C, 32C of the annular portion 30C are movable in the left-right direction. This movement is realized by the annular parts 32C, 32C having an "opening and closing function" that allows them to be opened and closed relative to the gripping portion 40C. This "opening and closing function" is achieved by operating the operating lever 38C in a direction that compresses the coil spring 36C, which is a compression spring, so that the annular parts 32C, 32C, which had been biased in a direction to close the tip 31C, are reversed and move in a direction to open the tip 31C.

[0028] FIG. 11 illustrates the same function as the "interlocking control function" of the second embodiment described with reference to FIG. An attachment portion 45C for attaching one end of the bar body 11C is provided outside the grip portion 40C, with a torsion spring 47C interposed therebetween as a play portion. For this reason, between the grip part 40C and the attachment part 45C, the rotation (twist) in the circumferential direction of the grip part 40C does not directly link with the rotation (twist) in the circumferential direction of the attachment part 45C (and vice versa, the rotation in the circumferential direction of the attachment part 45C does not directly link with the rotation in the circumferential direction of the grip part 40C), and the torsion spring 47C absorbs rotations below a certain rotation angle, providing an "interlocking control function" that controls the interlocking of the rotational motion. This can be said to play the role of so-called "play (room)" like that of a steering wheel of a car, and the rotation angle absorbed by this interlocking control function is called the "play angle", and its role is the same as that in the second embodiment (FIGS. 5 to 8).

[0029] FIG. 12 illustrates how the fitting body 20C fitted to the cone upper portion 51 of the road cone 50 is removed. When the gripping portion 40C is rotated (twisted) in its circumferential direction as shown in Fig. 12(b) from the state in which the annular portion 30C of the fitting body 20C is fitted into the cone upper portion 51 shown in Fig. 12(a), the annular parts 32C, 32C also rotate in conjunction with it. At that time, the inner diameter portions of the annular parts 32C, 32C abut against the cone upper portion 51, generating "friction," causing the tips 31C of the divided annular parts 32C, 32C to separate, creating a gap (clearance). 12(c), the fitting body 20C can be removed from the cone upper part 51. Note that the rotation (twist) of the grip part 40C is not directly linked to the bar main body 11C and the other fitting body 20C (not shown) beyond it due to the interlocking control function, and only the fitting body 20C shown in the figure can be removed.

[0030] FIG. 13 illustrates how the fitting body 20C fitted to the cone upper portion 51 of the road cone 50 is removed by a method different from that shown in FIG. When the operating lever 38C is operated from a state in which the annular portion 30C of the fitting body 20C is fitted into the cone upper portion 51 shown in Figure 13(a), as shown in Figure 13(b), the annular portion 30C (annular parts 32C, 32C) moves left and right in conjunction with the operation, and the tips 31C of the divided annular portion 30C (annular parts 32C, 32C) separate, creating a gap (clearance). As a result, the fitting body 20C can be removed from the cone upper portion 51 as shown in FIG. 13(c).

[0031] 14 and 15 are explanatory views for explaining a fourth embodiment of the cone bar according to the present invention. First, the cone bar 10D of the fourth embodiment is the cone bar 10A of the first embodiment, in which the rod-shaped bar body 11A forming the main body of the cone bar is replaced with a rod-shaped bar body 11D formed by combining an outer cylinder 15D and an inner cylinder 16D, as shown in Fig. 14. The fitting body 20A provided at one end of the bar body 11D has a mounting portion 45A attached to the outer cylinder 15D, and the fitting body 20A provided at the other end of the bar body 11D has a mounting portion 45A attached to the inner cylinder 16D. In addition, when one of the outer tube 15D or the inner tube 16D of the bar main body 11D is fixed, the other is freely expandable and rotatable.

[0032] Next, FIG. 15 illustrates a state in which the fitting body 20A fitted to the cone upper portion 51 of the road cone 50 is removed. When the annular portion 30A of the fitting body 20A is fitted into the main body portion 51 as shown in FIG. 15(a), and the mounting portion 45A or the inner tube 16D is rotated (twisted) in its circumferential direction as shown in FIG. 15(b), the annular portion 30A also rotates in conjunction with it. As a result, as shown in FIG. 15(c), the fitting body 20A can be removed from the main body 51, just like in the first embodiment.

[0033] However, in the fourth embodiment, even if the mounting portion 45A or the inner tube 16D is rotated in its circumferential direction in FIG. 15(b), the outer tube 15D is not linked to the rotation (because the outer tube 15D and the inner tube 16D have a relationship in which when one is fixed, the other becomes rotatable), and the rotation does not affect the fitting body 20A attached to the outer tube 15D (it will not come off the road cone 50). In addition, the explanation of the fourth embodiment so far has referred to the inner tube 16D and the fitting body 20A attached thereto, but the same applies when the outer tube 15D and the fitting body 20A attached thereto are rotated in the circumferential direction.

[0034] 16 and 17 are explanatory views for explaining a fifth embodiment of the cone bar according to the present invention. First, the cone bar 10E of the fifth embodiment is the cone bar 10B of the second embodiment, in which the rod-shaped bar body 11B forming the main body of the cone bar is replaced with a rod-shaped bar body 11E formed by combining an outer cylinder 15E and an inner cylinder 16E, as shown in Fig. 16. The fitting body 20B provided at one end of the bar body 11E has a mounting portion 45B attached to the outer cylinder 15E, and the fitting body 20B provided at the other end of the bar body 11E has a mounting portion 45B attached to the inner cylinder 16E. In addition, when one of the outer tube 15E or the inner tube 16E of the bar main body 11E is fixed, the other is freely expandable and rotatable.

[0035] Next, FIG. 17 illustrates a state in which the fitting body 20B fitted to the cone upper portion 51 of the road cone 50 is removed. When the gripping portion 40B is rotated (twisted) in its circumferential direction as shown in FIG. 17(b) from a state in which the annular portion 30B of the fitting body 20B is fitted into the main body portion 51 shown in FIG. 17(a), the annular portion 30B also rotates in conjunction with the gripping portion 40B. As a result, as shown in FIG. 17(c), the fitting body 20B can be removed from the main body 51, just like the second embodiment.

[0036] In the fifth embodiment, as in the second embodiment, even if the gripping portion 40B is rotated in its circumferential direction in FIG. 17(b), since an "interlocking control function" is provided between the gripping portion 40B and the mounting portion 45B (see paragraph

[0017] ), the rotation is absorbed by the mounting portion 45B, and since the outer tube 15E is not interlocked with the rotation of the inner tube 16E, the fitting body 20B attached to the outer tube 15E is not affected by the rotation of the inner tube 16E (it will not come off the road cone 50). Here, in the fifth embodiment, the fitting body 20B of the second embodiment is used, but the fitting body 20C of the third embodiment may also be used. In addition, the explanation of the fifth embodiment so far has referred to the inner tube 16E and the fitting body 20B attached thereto, but the same applies when the outer tube 15E and the fitting body 20B (fitting body 20C) attached thereto are rotated in their circumferential direction.

[0037] 18 and 19 are explanatory views for explaining a sixth embodiment of the cone bar according to the present invention. First, the cone bar 10F of the sixth embodiment, as shown in Fig. 18, is a cone bar 10B of the second embodiment, in which the rod-shaped bar body 11B forming the main body of the cone bar is replaced with a rod-shaped bar body 11F formed by combining an outer tube 15F and two inner tubes 16F, 16F. The two inner tubes 16F, 16F are directly attached to the inside or outside of the gripping portion 40B of the fitting bodies 20B, 20B provided at both ends of the bar body 11F (the mounting portion 45B shown in Fig. 16 does not exist). Fig. 18 illustrates a state in which the inner tube 16F is directly attached to the inside of the gripping portion 40B. In addition, the bar main body 11F has inner cylinders 16F, 16F that are extendable relative to the outer cylinder 15F, and when one of the outer cylinder 15F or the inner cylinders 16F, 16F is fixed, the other is rotatable.

[0038] Next, FIG. 19 illustrates a state in which the fitting body 20B fitted to the cone upper portion 51 of the road cone 50 is removed. When the gripping portion 40B is rotated (twisted) in its circumferential direction as shown in FIG. 19(b) from a state in which the annular portion 30B of the fitting body 20B is fitted into the main body portion 51 shown in FIG. 19(a), the annular portion 30B also rotates in conjunction with the gripping portion 40B as shown in FIG. As a result, as shown in FIG. 19(c), the fitting body 20B can be removed from the main body 51, just like the second embodiment.

[0039] However, in the sixth embodiment, even if the gripping portion 40B is rotated in its circumferential direction in FIG. 19(b), only the inner tube 16F attached to the gripping portion 40B rotates, and the outer tube 15F is not linked to that rotation (because the outer tube 15F and the inner tube 16F have a relationship in which when one is fixed, the other becomes free to rotate), and the rotation does not affect the fitting body 20B attached to the outer tube 15F (it will not come off the road cone 50). Here, in the sixth embodiment, the fitting body 20B of the second embodiment is used, but the fitting body 20C of the third embodiment may be used. In this case, too, the inner cylinder 16F is attached directly to the gripping portion 40C, not to the attachment portion 45C.

[0040] 20 and 21 are explanatory views for explaining a seventh embodiment of the cone bar according to the present invention. First, the cone bar 10G of the seventh embodiment is, as shown in Fig. 20, a cone bar 10F of the sixth embodiment, in which the rod-shaped bar body 11F forming the main body of the cone bar is replaced with a rod-shaped bar body 11G formed by combining an outer tube 15G and one inner tube 16G. The outer tube 15G is directly attached to the outside or inside of the grip part 40B of the fitting body 20B provided at both ends of the bar body 11G (the mounting part 45B shown in Fig. 16 does not exist). Fig. 20 illustrates a state in which the outer tube 15G is directly attached to the outside of the grip part 40B. In addition, when one of the outer tube 15G or the inner tube 16G of the bar body 11G is fixed, the other is freely expandable and rotatable.

[0041] Next, FIG. 21 illustrates a state in which the fitting body 20B fitted to the cone upper portion 51 of the road cone 50 is removed. When the gripping portion 40B (outer tube 15G) is rotated (twisted) in its circumferential direction as shown in FIG. 21(b) from a state in which the annular portion 30B of the fitting body 20B is fitted into the main body portion 51 shown in FIG. 21(a), the annular portion 30B also rotates in conjunction with the gripping portion 40B (outer tube 15G). As a result, as shown in FIG. 21(c), the fitting body 20B can be removed from the main body 51, just like the second embodiment.

[0042] However, in the seventh embodiment, even if the gripping portion 40B (outer tube 15G) is rotated in its circumferential direction in FIG. 21(b), only the outer tube 15G attached to the gripping portion 40B rotates, and the inner tube 16G is not linked to that rotation (because the outer tube 15G and the inner tube 16G have a relationship in which when one is fixed, the other becomes free to rotate), and the rotation does not affect the fitting body 20B attached to the inner tube 16G (it will not come off the road cone 50). Here, in the seventh embodiment, the fitting body 20B of the second embodiment is used, but the fitting body 20C of the third embodiment may be used. In this case as well, the outer cylinder 15G is attached directly to the gripping portion 40C, not to the attachment portion 45C. In addition, in the explanation of the seventh embodiment so far, reference has been made to the outer tube 15G and the fitting body 20B attached thereto, but the same applies when the inner tube 16G and the fitting body 20B (fitting body 20C) attached thereto are rotated in their circumferential direction.

[0043] 22 and 23 are other explanatory views for explaining the fourth to seventh embodiments of the present invention. In the fourth to seventh embodiments, the bar body 11 has been described as having one outer cylinder 15 and one inner cylinder 16 (fourth, fifth, and seventh embodiments) and one outer cylinder and two inner cylinders (sixth embodiment). The former has one joint and the latter has two joints. Figure 22 shows the former case, where the outer tube 15 and the inner tube 16 are rotated together by grasping the joint (at one location) with one hand and rotating it (Figure 22(b)), and the fittings 20, 20 at both ends can be removed from the cone upper part 51 of the road cone 50 at once. Figure 23 shows the latter case, in which the outer tube 15 and the inner tube 16 are rotated together by grasping each of the joints (two locations) with both hands and rotating them (Figure 23(b)), and the fittings 20, 20 at both ends can be removed from the cone upper part 51 of the road cone 50 at once. [Industrial Applicability]

[0044] The cone bar according to the present invention can be widely used as a member that is continuously installed between road cones. [Explanation of symbols]

[0045] (First embodiment) 10A Cone Bar 11A Bar body 20A Fitting (Cone Bar Fitting) 30A Annular section 31A Tip 45A Mounting part

[0046] Second embodiment 10B Cone Bar 11B Bar body 20B Fitting (cone bar fitting) 30B Annular section 31B Tip 32B Circular parts 33B Coil spring 34B Tip contact surface 35B Magnet 40B Grip part 42B Side 43B Locking protrusion 44B Stopper 45B Mounting part 46B Tip surface 47B Torsion spring (play part) 48B Convex 49B Convex Party A

[0047] Third embodiment 11C Bar body 20C mating body 30C Circular section 31C Tip 32C Circular Parts 33C Coil spring 34C Tip contact surface 35C Magnet 36C Coil spring 37C Actuating member 38C Operating lever 40C grip part 45C mounting part 47C Torsion spring (play part)

[0048] (Fourth embodiment) 10D Cone Bar 11D Bar body 15D outer cylinder 16D inner cylinder 20A Fitting (Cone Bar Fitting) 30A Annular section 31A Tip 45A Mounting part

[0049] Fifth embodiment 10E Cone Bar 11E Bar body 15E Outer cylinder 16E Inner cylinder 20B Fitting (cone bar fitting) 30B Annular section 31B Tip 32B Circular parts 40B Grip part 45B Mounting part

[0050] Sixth embodiment 10F Cone Bar 11F Bar main unit 15F Outer cylinder 16F inner cylinder 20B Fitting (cone bar fitting) 30B Annular section 31B Tip 32B Circular parts 40B Grip part

[0051] Seventh embodiment 10G Cone Bar 11G Bar body 15G outer tube 16G inner cylinder 20B Fitting (cone bar fitting) 30B Annular section 31B Tip 32B Circular parts 40B Grip part

[0052] (Conventional and other examples) 50 Road Cone 51 Cone Top 60 Cone Bar 62 Fitting body

Claims

1. A cone bar fitting is provided at both ends or one end of a rod-shaped bar body constituting a cone bar installed between road cones, The cone bar fitting has a ring-shaped annular portion that fits into the upper part of the cone of the road cone, and is divided at the tip of the annular portion, which is the end of the cone bar.By rotating the erected cone bar in the circumferential direction, the tip of the annular portion separates in the vertical direction, thereby releasing the fitting with the upper part of the cone of the road cone.

2. The cone bar fitting as described in claim 1 has a gripping portion having an attachment portion provided inside or outside for attachment to the bar body, and each of the divided annular portions is bendable in the vertical direction relative to the gripping portion and has a restoring force after bending.

3. The cone bar fitting according to claim 2, wherein each of the divided annular portions can be opened and closed in the left-right direction, and further wherein an operating lever is provided in the gripping portion for controlling a biasing member that biases the annular portions to a closed state.

4. The cone bar fitting according to claim 2 or 3, wherein the gripping portion and the mounting portion are connected via a connection portion, and the connection portion has an interlocking control function that interlocks the rotation of either the gripping portion or the mounting portion with the rotation of the other portion only when the either one of the gripping portion or the mounting portion is rotated in the circumferential direction by a certain angle or more.

5. 4. The cone-bar fitting according to claim 1, wherein a magnet is provided on each of the contact surfaces of the tip ends of the divided annular portions.

6. A cone bar installed between road cones, This cone bar is characterized in that both or one of the cone bar fittings, which are provided at both ends of a rod-shaped bar body and have annular annular portions that fit into the upper part of the cone of a road cone, are split at the tips of the annular portions, which form the ends of the cone bar, and by rotating the erected cone bar in a circumferential direction, the tips of the annular portions are separated in the vertical direction, thereby releasing the fitting with the upper part of the cone of the road cone.

7. The cone bar according to claim 6, further comprising a gripping portion having an attachment portion provided inside or outside thereof for attachment to the bar body, and each of the divided annular portions is capable of being bent in the vertical direction relative to the gripping portion and has a restoring force after bending.

8. The cone bar according to claim 7, wherein each of the divided annular portions can be opened and closed in the left-right direction, and further wherein an operating lever is provided at the grip portion for controlling a biasing member that biases the annular portions to a closed state.

9. The cone bar according to claim 7 or 8, wherein the gripping portion and the mounting portion are connected via a connection portion, and the connection portion has a linkage control function that links the rotation of either the gripping portion or the mounting portion to the rotation of the other only when the either one of the gripping portion or the mounting portion is rotated in the circumferential direction by a certain angle or more.

10. 9. The cone burr according to claim 6, wherein a magnet is provided on each of the contact surfaces of the tip ends of the divided annular portions.

11. A road cone / cone bar assembly set comprising a road cone and the cone bar according to any one of claims 6 to 8.

12. The cone-bar fitting according to any one of claims 1 to 3, characterized in that the bar body is formed by combining an outer tube and an inner tube, and when one of the outer tube or the inner tube is fixed, the other is freely extendable and rotatable.

13. The cone burr according to any one of claims 6 to 8, characterized in that the burr body is formed by combining an outer tube and an inner tube, and when one of the outer tube or the inner tube is fixed, the other is freely extendable and rotatable.

14. A road cone / cone bar assembly set comprising a road cone and the cone bar according to claim 13.

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