JP7572722B2 - Delineator - Google Patents

Description

The present invention relates to a delineator that supports vehicle drivers by guiding their line of sight on roads, parking lots, or facilities where vehicles enter and exit.

Conventionally, pole-shaped delineators with reflectors on the top have been installed on the ground along the sides or center of roads to clearly indicate roadsides and road alignments and to guide the driver's line of sight during the day and at night. Such delineators that guide the driver's line of sight are known.

Some delineators are installed at a specific height on hard road surfaces such as concrete or paved roads, while others are installed at a specific height on earth. When installing delineators on earth, a so-called standard type (buried underground, underground type) delineator consisting of a single pole may be used.

Generally, delineators, which are made up of a single post, consist of an upper post 90 cm above ground and a lower post 60 cm deep. Delineators must be installed so that they cannot be easily pulled out, and some lower posts are equipped with a pin-shaped anti-pullout member that extends horizontally. For this reason, the post cannot be driven into the ground, and installation requires a series of tasks including digging, erecting, and backfilling.

If the upper support is bent or broken, the delineator must be replaced, but the labor and cost of the replacement work increases due to factors such as the removal of pavement, the use of heavy machinery, and the slowdown in removal and installation work due to frozen soil when construction is performed in winter, as well as the reduced efficiency of work due to snow removal. From this perspective, a delineator that takes ease of installation into consideration is known, as shown in Patent Document 1.

The delineator in Patent Document 1 is a cylindrical sheath tube with an open bottom, which is provided with an engagement means and buried in the ground. A support pole is inserted into the sheath tube and engaged with the support pole by the engagement means. Replacing the delineator is completed by removing the broken support pole from the sheath tube and installing a new support pole in the sheath tube.

In recent years, there has been a demand for the effective use of wood in various fields, and it would be preferable if wood could be used for the supports of the delineator. Even if wood is not used, it would be preferable if the delineator could be easily replaced by a contractor different from the one that originally installed it.

However, when using wooden posts, if the wood is exposed close to the ground, it is susceptible to rot due to rainwater or moisture from the ground, so it is necessary to protect the wood by protruding the sheath tube from the ground to a certain height, but the upper end of the sheath tube in Patent Document 1 is too low to be used. Also, in the delinator in Patent Document 1, a bolt is provided on the sheath tube to engage the post, and the post cannot be replaced unless it has a special groove shape formed to engage with this bolt. For this reason, if the contractor replacing the delinator is different from the contractor that originally installed it, it will be necessary to arrange for a special post that fits the sheath tube in Patent Document 1, which is undesirable.

Utility Model Registration No. 3114882

In view of the above, the present invention aims to provide a delineator that uses a sheath tube installed on the ground, can be replaced regardless of the material, such as wood, and does not require a specially shaped support.

According to an embodiment of the present invention, there is provided a delineator including a sheath pipe buried in the ground, an upper pole provided on the sheath pipe and extending upward, and a reflector provided on the upper pole for reflecting light,
the sheath pipe is formed in a cylindrical shape and includes a buried portion buried in the ground and an exposed portion that is continuous with the buried portion and is exposed above the ground to a predetermined height,
the upper pole is formed in a cylindrical or columnar shape and has an outer diameter smaller than an inner diameter of the sleeve pipe, and includes an insertion portion to be inserted into the sleeve pipe, an upward extension portion extending upward from the insertion portion, and an elastic member provided on the insertion portion and biasing the insertion portion in a radially expanding direction to come into contact with an inner circumferential surface of the embedded portion,
A socket having a different diameter is provided between the sleeve pipe and the upper pole, and the socket is fitted to the exposed portion and supports the upper pole on the sleeve pipe.

According to this configuration, the sheath tube is formed in a cylindrical shape and has an exposed portion that is continuous with the buried portion and is exposed above the ground to a predetermined height, so that the upper pole inserted into the sheath tube can be protected from moisture such as rainwater on the ground. The upper pole has an insertion portion that is inserted into the sheath tube and an elastic member that is provided in the insertion portion and biases it in the radially expanding direction and abuts against the inner peripheral surface of the buried portion, and between the sheath tube and the upper pole, a different-diameter socket that fits into the exposed portion and supports the upper pole to the sheath tube is provided, so that regardless of the size or shape of the sheath tube, the upper part of the insertion portion is supported by the different-diameter socket and the lower part of the insertion portion is supported by the sheath tube by the elastic member, so that the upper pole can be supported by the sheath tube at two points, top and bottom. The upper pole is formed with an outer diameter smaller than the inner diameter of the sheath tube, so that the upper pole can be inserted regardless of the size of the sheath tube. Therefore, the sheath tube installed on the ground can be used to replace the pole regardless of the material, such as wood, and even if it is not a dedicated shape.

Preferably, the variable diameter socket has a large diameter section with an inner diameter larger than the outer diameter of the sheath tube that is fitted into the exposed section, a small diameter section that is provided above the large diameter section and has an inner diameter smaller than the inner diameter of the large diameter section and larger than the outer diameter of the upper pole, and that holds the inserted upper pole, and a shoulder section that is formed on the inside upper part of the large diameter section and abuts against the upper end of the exposed section.

According to this configuration, the large diameter portion of the different diameter socket has an inner diameter larger than the outer diameter of the sheath tube, so it can be fitted into the exposed portion. The small diameter portion of the different diameter socket has an inner diameter smaller than the inner diameter of the large diameter portion and larger than the outer diameter of the upper pole, so it can hold the upper pole. A shoulder that abuts against the upper end of the exposed portion is formed on the inner upper part of the large diameter portion, so the upper pole held in the small diameter portion can be positioned in the height direction simply by fitting the large diameter portion into the exposed portion. Therefore, the upper pole can be easily installed regardless of the shape of the sheath tube.

Preferably, the elastic member is a spring.

With this configuration, the elastic member is a spring, which is highly versatile, and the upper pole can be easily installed by applying force to the inner surface of the sheath tube with the elastic force of the spring, regardless of the shape of the sheath tube.

Preferably, the spring is C-shaped and includes a pair of shafts rotatably supported in the insertion portion, a pair of oscillating portions that bend from the shafts and extend inclined outward relative to the insertion portion and are oscillatingly supported, a pair of bent portions formed at the ends of the oscillating portions and abut against the inner peripheral surface, a pair of bent portions that bend and extend from the bent portions toward the insertion portion, and a folded abutment portion that connects the pair of bent portions and abuts against the outer periphery of the insertion portion.

With this configuration, a pair of shafts are rotatably supported on the insertion portion of the upper pole, and a pair of oscillating portions extending outwardly are connected to a folded abutment portion via a bent portion, creating a spring with a simple shape. This allows the bent portion to be biased in the radial expansion direction while keeping component costs low, and the upper pole can be installed on any type of sheath tube.

Preferably, the spring is provided in two portions facing each other across the insertion portion,
The shaft portions of the two springs are supported in upper and lower holes formed in the insertion portion at positions offset in the vertical direction, respectively, and the springs are arranged to extend upward.

According to this configuration, the two springs are arranged offset in the vertical direction, so when the insertion portion of the upper pole is inserted into the sheath tube, the gap between the sheath tube and the insertion portion is not so large, and only one of the springs enters the sheath tube first, so the insertion portion can be easily inserted into the sheath tube. Furthermore, since the two springs are arranged opposite each other across the insertion portion, when the upper pole is inserted, the two springs apply a balanced force in the radial expansion direction, allowing the upper pole to be accurately installed in the sheath tube. Furthermore, since the spring extends upward, when an attempt is made to remove the upper pole inserted into the sheath tube, the spring is subjected to a downward force due to friction with the inner peripheral surface of the sheath tube, but the presence of a shaft portion at the lower end that does not move up and down prevents the spring from moving downward and gets caught, making it difficult for the upper pole to be easily removed.

Preferably, the upper pole is constructed from wood.

With this configuration, the upper pole is made of wood, which meets social needs, while the wood is less likely to rot when inserted into a sheath of a specified height. This makes it possible to provide a delineator that uses a sheath installed on the ground and can be easily replaced even if it is made of wood.

Preferably, tape is wrapped around a predetermined position on the upper pole, and the lower end of the tape is attached to the upper end of the different diameter socket, or the different diameter socket is fixed to a predetermined position on the upper pole by a screw.

With this configuration, the upper pole is hooked onto the upper end of the small diameter part of the different diameter socket by the tape, and the positioning of the upper pole can be accurately performed with respect to the different diameter socket. By fixing the different diameter socket to a predetermined position on the upper pole with screws, the positioning of the different diameter socket with respect to the upper pole can be accurately performed.

By using a sheath pipe installed on the ground, it is possible to provide a delineator that can be replaced regardless of the material, such as wood, and even if the support is not of a special shape.

FIG. 2 is an exploded view of the delineator according to the embodiment. FIG. 2 is an explanatory diagram of a delineator according to an embodiment. FIG. 4 is an explanatory diagram of a deformed socket according to an embodiment. FIG. 4 is an explanatory diagram of a spring according to the embodiment. FIG. 2 is an explanatory diagram of a reflector according to an embodiment. FIG. 4 is an operational diagram of the delineator according to the embodiment.

The embodiment of the present invention will be described below with reference to the attached drawings. Note that the operation diagram shows the delineator conceptually (schematically).

As shown in Figures 1 and 2, the delineator 10 includes a sheath pipe 20 buried in the ground 70, an upper pole 30 attached to the sheath pipe 20 and extending upward, and a reflector 40 attached to the upper part of the upper pole 30 to reflect light.

The sheath pipe 20 is formed in a cylindrical shape and has an embedded portion 21 buried in the ground 70, and an exposed portion 22 that is continuous with the embedded portion 21 and is exposed above the ground 70 to a predetermined height H. In the embodiment, the sheath pipe 20 is a new cylindrical pipe, but this is not limited to this, and it may be an installed delineator 10 cut at a predetermined height. In other words, it may be a double pipe in which a pole with an outer diameter smaller than the inner diameter of the sheath pipe 20 is inserted into the sheath pipe 20, and the pole (including the sheath pipe 20) is cut at the predetermined height H. Furthermore, it may be a sheath pipe 20 that has been removed from an installed delineator 10 with a pole inserted into the sheath pipe 20, and the sheath pipe 20 is set to the predetermined height H.

The outer diameter of the sheath tube 20 is D1, and the inner diameter is d3. The upper pole 30 is formed in a cylindrical or columnar shape and has an outer diameter D2 smaller than the inner diameter d3 of the sheath tube 20. It has an insertion portion 31 that is inserted into the sheath tube 20, an upward extension portion 32 that extends upward from the insertion portion 31, and elastic members 50, 50a, 50b that are provided on the insertion portion 31 and bias the insertion portion 31 in the radially expanding direction and abut against the inner peripheral surface 23 of the embedded portion 21.

The upper pole 30 is made of wood. For example, thinned cedar logs can be used as the wood, which can be used to meet social needs such as contributing to disaster prevention measures, while also preventing moisture from the ground 70 and making the wood less likely to rot by inserting it into the sheath tube 20 at a specified height H. Note that in the embodiment, the upper pole 30 is made of wood, but this is not limited to this, and the upper pole 30 can also be made of synthetic resin. This allows the sheath tube 20 that has already been installed to be used regardless of the material.

In addition, a tape 36 is wound around a predetermined position of the upper pole 30, and the lower end of the tape 36 is attached to the upper end of the different diameter socket 60. The tape 36 is preferably a reflective tape. The upper extension 32 of the upper pole 30 is painted. For example, in the case of coloring, a medium viscosity epoxy paint is applied as a base treatment, and a ceramic modified silicon resin paint is applied as a top coat. In addition, in the case of a clear color, a polycarbonate-based urethane resin paint is applied as a base coat, and a urethane resin paint is applied as a top coat. The insertion part 31 may be painted with, for example, Xyladecor (registered trademark) as a corrosion inhibitor. The tape 36 may not be a reflective tape, but may be a marking tape for positioning. Furthermore, the tape 36 may not be necessary, and instead, a corrosion prevention paint may be applied from above it to the planned position. There is no problem as long as the upper pole 30 is attached to the upper end of the different diameter socket 60 depending on the thickness of the paint.

Between the sheath tube 20 and the upper pole 30, a different diameter socket 60 is provided that fits into the exposed portion 22 and supports the upper pole 30 to the sheath tube 20.

As shown in Figures 1 to 3, the different diameter socket 60 is formed with a thin wall. The different diameter socket 60 has a large diameter section 61 with an inner diameter d1 larger than the outer diameter D1 of the sheath tube 20 and fitted into the exposed section 22, a small diameter section 62 provided at the top of the large diameter section 61 and formed with an inner diameter d2 smaller than the inner diameter d1 of the large diameter section 61 and larger than the outer diameter D2 of the upper pole 30, and holding the inserted upper pole 30, and a shoulder section 63 formed at the inside upper section of the large diameter section 61 and abutting against the upper end 24 of the exposed section 22.

For example, the outer diameter D2 of the upper pole 30 may be 59 mm, the inner diameter d2 of the small diameter portion 62 of the different diameter socket 60 may be 60 mm, and the inner diameter d1 of the large diameter portion 61 may be 75 mm. The inner and outer diameters may be values other than those in the embodiment. The different diameter socket 60 has an inclined portion 64 on the outer periphery that connects the small diameter portion 62 to the large diameter portion 61, an inner peripheral surface 65 of the large diameter portion 61, and an inner peripheral surface 66 of the small diameter portion 62. The small diameter portion 62 has a hole 67 that penetrates to the inner peripheral surface 66. In the embodiment, the positioning when the upper pole 30 is inserted into the different diameter socket 60 is determined by the thickness of the tape 36 or paint, but this is not limited to this, and the socket 60 may be fixed in a predetermined position by screwing, such as by inserting a screw into the hole 67 formed in the small diameter portion 62 and fastening it to the upper pole 30.

The material of the sheath tube 20, the upper pole 30, and the different diameter socket 60 may be polyethylene resin. Note that the material of the sheath tube 20, the upper pole 30, and the different diameter socket 60 is not limited to polyethylene resin, and may be synthetic resin such as polyurethane, ABS, or reinforced plastic containing glass fiber, or may even be metal.

As shown in Figures 1, 2 and 4, the elastic members 50, 50a, 50b are springs. The elastic members 50, 50a, 50b (hereinafter referred to as springs) are formed into a C-shape by bending a wire.

The springs 50, 50a, 50b are provided with a pair of shafts 51 rotatably supported in the holes 33, 34 of the insertion portion 31, a pair of oscillating portions 52 that bend from the shafts 51, extend inclined outward relative to the insertion portion 31, and are supported to be able to oscillate, a pair of bent portions 53 formed at the ends of the oscillating portions 52 and abut against the inner peripheral surface 23, a pair of bent portions 54 that bend and extend from the bent portions 53 toward the insertion portion 31, and a folded abutment portion 55 that connects the pair of bent portions 54 and abuts against the outer periphery of the insertion portion 31.

Two springs 50a, 50b are provided facing each other across the insertion portion 31, and the shafts 51 of the two springs 50a, 50b are supported by upper and lower holes 33, 34 formed at positions offset in the vertical direction of the insertion portion 31, respectively, and the springs 50a, 50b are arranged to extend upward.

The two springs 50a, 50b are arranged opposite each other across the insertion portion 31, so that when inserted, the two springs 50a, 50b apply a balanced force in the radial expansion direction, allowing the upper pole 30 to be accurately installed in the sleeve tube 20. Furthermore, since the springs 50a, 50b extend upward, when attempting to remove the upper pole 30 inserted in the sleeve tube 20, the springs 50a, 50b are subjected to a downward force due to friction with the inner peripheral surface 23 of the sleeve tube 20, but since there is an axis portion 51 at the lower end that does not move up and down, the springs 50a, 50b do not move downward and get caught, making it difficult for the upper pole 30 to be easily removed.

In the embodiment, the elastic member 50 is a spring formed by bending a wire into a C-shape, but this is not limited to this. The elastic member 50 may be a leaf spring, compression spring, rubber, or the like, as long as it has a biasing force in the radial expansion direction.

As shown in Figures 1, 2 and 5, the reflector 40 comprises a cylindrical tube portion 41 that is fitted to the upper end of the upward extension portion 32 of the upper pole 30, a neck portion 42 formed to narrow the upper portion of the tube portion 41, a main body portion 43 formed on the upper portion of the neck portion 42, and a reflector plate 44 that reflects light and is provided at a position substantially opposite the main body portion 43 in the lateral direction. The main body portion 43 is formed to be substantially hexagonal in front view. It is also possible to provide the main body portion 43 directly on the upper portion of the tube portion 41 without forming the neck portion 42, and further, the shape may be such that the tube portion 41 and the main body portion 43 are smoothly connected so that the outer diameter does not become small.

A hole 45 is formed in the tube portion 41, and a screw 46 is passed through this hole 45 to fasten the reflector 40 to the upper pole 30. In the embodiment, the two reflectors 44 are provided so as to be slightly inclined, but they may be provided so as to be parallel. Also, the main body portion 43 is formed in a roughly hexagonal shape when viewed from the front, but it may also be formed in a circular or octagonal shape.

In the embodiment, only a corrosion-preventive coating is applied to the surface of the upward extension 32 of the upper pole 30, but this is not limited to the above. Letters may be written on top of the coating, or stickers with letters may be affixed. For example, stickers with letters such as "Watch out for forest fires," "Watch out for bears," "Cell phone calls allowed," "No littering," "Slow down," and "Watch out, tsunami flooded area" may be affixed.

Next, the operation of the delineator 10 of the embodiment will be described.
6A, the existing delineator 10 is cut with a cutter 71 such as an electric saw at a predetermined height H from the ground 70 to remove the cut-off portion 20a. Meanwhile, a different diameter socket 60 is fitted onto the new upper pole 30 from below.

As shown in FIG. 6B, the different diameter socket 60 is moved to the position of the lower end of the tape 36. The spring 50a is set in the upper hole 33 formed in the insertion portion 31 of the upper pole 30, and the spring 50b is set in the lower hole 34. When setting the springs 50a and 50b, the springs 50a and 50b are opened and the shaft portion 51 is inserted into the upper hole 33 and the lower hole 34. If the tape 36 is not provided, the upper pole 30 may be fixed to the different diameter socket 60 with a screw by using a substitute mark, length measurement, jig, etc. so that the upward extension portion 32 extends a predetermined length from the different diameter socket 60.

As shown in FIG. 6(C), the insertion portion 31 of the upper pole 30 is inserted into the sheath tube 20. Then, the lower spring 50b enters the sheath tube 20. Because the springs 50a and 50b are wider in the radial direction than the inner diameter of the sheath tube 20, the upper spring 50a gets caught on the upper end 24 of the sheath tube 20, but the upper pole 30 is inserted further into the sheath tube 20.

As shown in FIG. 6(D), the shoulder 63 of the different diameter socket 60 abuts against the upper end 24 of the sleeve tube 20 and is positioned. The springs 50a and 50b urge the inner peripheral surface 23 of the sleeve tube 20 in the direction of expanding the diameter. The two springs 50a and 50b urge in opposite directions, so that the balance is good and the upper pole 30 does not wobble or come off easily. In this way, the replacement work of the upper pole 30 is easy and can be completed in a short time by simply inserting it.

Next, the operation and effects of the above-mentioned delineator 10 will be described.
In the embodiment of the present invention, the sheath pipe 20 is formed in a cylindrical shape and has an exposed portion 22 that is continuous with the buried portion 21 and is exposed above the ground 70 to a predetermined height H, so that the upper pole 30 inserted into the sheath pipe 20 can be protected from moisture such as rainwater on the ground 70. The upper pole 30 has an insertion portion 31 inserted into the sheath pipe 20 and an elastic member 50 provided in the insertion portion 31 and biased in the radially expanding direction to abut against the inner peripheral surface 23 of the buried portion 21, and a different-diameter socket 60 that fits into the exposed portion 22 and supports the upper pole 30 to the sheath pipe 20 is provided between the sheath pipe 20 and the upper pole 30. Therefore, regardless of the size or shape of the sheath pipe 20, the upper portion of the insertion portion 31 is supported to the sheath pipe 20 by the different-diameter socket 60, and the lower portion of the insertion portion 31 is supported to the sheath pipe 20 by the elastic member 50, so that the upper pole 30 can be supported to the sheath pipe 20 at two points, upper and lower. The upper pole 30 is formed with an outer diameter D2 smaller than the inner diameter d3 of the sheath tube 20, so that the upper pole 30 can be inserted regardless of the size of the sheath tube 20. Therefore, the sheath tube 20 installed on the ground 70 can be used and can be replaced regardless of the material, such as wood, and even if it is not a dedicated shape of the support.

Furthermore, in the embodiment of the present invention, the large diameter portion 61 of the different diameter socket 60 has an inner diameter d1 larger than the outer diameter D1 of the sheath tube 20, so it can be fitted into the exposed portion 22. The small diameter portion 62 of the different diameter socket 60 has an inner diameter d2 smaller than the inner diameter d1 of the large diameter portion 61 and larger than the outer diameter D2 of the upper pole 30, so it can hold the upper pole 30. A shoulder portion 63 that abuts against the upper end 24 of the exposed portion 22 is formed on the inner upper portion of the large diameter portion 61, so that the upper pole 30 held by the small diameter portion 62 can be positioned in the height direction simply by fitting the large diameter portion 61 into the exposed portion 22. Therefore, the upper pole 30 can be easily installed regardless of the shape of the sheath tube 20.

In addition, in the embodiment of the present invention, the elastic member 50 is a spring, which is highly versatile and allows the upper pole 30 to be easily installed by biasing the inner surface 23 of the sheath tube 20 with the elastic force of the spring, regardless of the shape of the sheath tube 20.

Furthermore, in the embodiment of the present invention, a pair of shafts 51 are rotatably supported by the insertion portion 31 of the upper pole 30, and a pair of oscillating portions 52 extending outwardly are connected to a bent portion 54 via a bent portion 53 and folded back at abutment portion 55, making for a spring with a simple shape. This allows for low component costs, while allowing for the bent portion 53 to bias in the radial expansion direction, and the upper pole 30 can be installed on any type of sheath tube 20.

Furthermore, in the embodiment of the present invention, the two springs 50a, 50b are arranged offset in the vertical direction, so that when inserting the insertion portion 31 of the upper pole 30 into the sheath tube 20, even when the gap between the sheath tube 20 and the insertion portion 31 is not so large, only one of the springs 50b enters the sheath tube 20 first, so that the insertion portion 31 can be easily inserted into the sheath tube 20. Furthermore, since the two springs 50a, 50b are provided opposite each other across the insertion portion, when inserted, the two springs 50a, 50b apply a balanced force in the radial expansion direction, allowing the upper pole 30 to be accurately installed in the sheath tube 20. Furthermore, because the springs 50a and 50b extend upward, when attempting to remove the upper pole 30 inserted into the sheath tube 20, the springs 50a and 50b are subjected to a downward force due to friction with the inner surface 23 of the sheath tube 20. However, because there is an axis portion 51 at the bottom end that does not move up and down, the springs 50a and 50b do not move downward and get caught, making it difficult for the upper pole 30 to be easily removed.

Furthermore, in the embodiment of the present invention, the upper pole 30 is made of wood, which meets social needs, and by inserting it into the sheath pipe 20 at a specified height H, the wood can be made less susceptible to rotting. Therefore, it is possible to provide a delineator that uses the sheath pipe 20 installed on the ground 70 and can be easily replaced even if it is made of wood.

Furthermore, in this embodiment of the present invention, the upper pole 30 is hooked onto the upper end of the small diameter portion 62 of the different diameter socket 60 by the tape 36, and the positioning of the upper pole 30 with respect to the different diameter socket 60 can be accurately performed. Also, by fixing the different diameter socket 30 to a predetermined position of the upper pole 30 by screwing, the positioning of the different diameter socket 60 with respect to the upper pole 30 can be accurately performed.

In the embodiment, the tape 36 is wound around a predetermined position on the upper pole 30, and the lower end of the tape 36 is attached to the upper end of the different diameter socket 60, but this is not limited to this, and paint may be applied from a predetermined position above the upper pole 30, and the lower end of the thickness of this paint may be attached to the upper end of the different diameter socket 60. In the embodiment, the two C-shaped springs 50a, 50b are arranged offset in the vertical direction, but they may be arranged at the same position in the vertical direction. In addition, two C-shaped springs 50a, 50b are provided, but this is not limited to this, and one, three, etc. may be used, and they may even be arranged to extend downward.

In other words, as long as the action and effect of the present invention are achieved, the present invention is not limited to the examples.

The technology of the present invention is suitable for delineators that guide the driver's gaze to clearly indicate roadsides, road alignments, etc.

10... delineator, 20... sheath tube, 21... buried portion, 22... exposed portion, 23... inner surface, 30... upper pole, 31... insertion portion, 32... upward extension portion, 36... tape, 40... reflector, 50, 50a, 50b... elastic member, spring, 51... shaft portion, 52... oscillating portion, 53... bending portion, 54... bent portion, 55... folded abutment portion, 60... different diameter socket, 61... large diameter portion, 62... small diameter portion, 63... shoulder portion, 67... hole, 70... ground, H... predetermined height.

Claims (5)

A delineator comprising a sheath pipe buried in the ground, an upper pole attached to the sheath pipe and extending upward, and a reflector attached to the upper pole for reflecting light,
the sheath pipe is formed in a cylindrical shape and includes a buried portion buried in the ground and an exposed portion that is continuous with the buried portion and is exposed above the ground to a predetermined height,
the upper pole is formed in a cylindrical or columnar shape and has an outer diameter smaller than an inner diameter of the sleeve pipe, and includes an insertion portion to be inserted into the sleeve pipe, an upward extension portion extending upward from the insertion portion, and an elastic member provided on the insertion portion and biasing the insertion portion in a radially expanding direction to come into contact with an inner circumferential surface of the embedded portion,
a different diameter socket is provided between the sleeve pipe and the upper pole to fit into the exposed portion and support the upper pole on the sleeve pipe;
The elastic member is a spring,
The spring is C-shaped and comprises a pair of shaft portions rotatably supported in the insertion portion, a pair of oscillating portions that bend from the shaft portions and extend at an outward angle relative to the insertion portion and are supported to be oscillatingly, a pair of bent portions formed at the ends of the oscillating portions and abut the inner surface, a pair of bent portions that bend and extend from the bent portions toward the insertion portion, and a folded abutment portion that connects the pair of bent portions and abuts the outer periphery of the insertion portion . 2. The delineator according to claim 1,
the different diameter socket comprises: a large diameter portion having an inner diameter larger than the outer diameter of the sheath tube and fitted into the exposed portion; a small diameter portion provided on an upper portion of the large diameter portion and having an inner diameter smaller than the inner diameter of the large diameter portion and larger than the outer diameter of the upper pole, the small diameter portion holding the inserted upper pole; and a shoulder portion formed on an upper inside portion of the large diameter portion and abutting against an upper end of the exposed portion. The delineator according to claim 1 or 2 ,
The spring is provided in two portions facing each other across the insertion portion,
A delineator characterized in that the shaft portions of the two springs are supported in upper and lower holes formed at positions offset in the vertical direction of the insertion portion, respectively, and the springs are arranged to extend upward. The delineator according to any one of claims 1 to 3 ,
A delineator characterized in that the upper pole is made of wood. The delineator according to any one of claims 1 to 4 ,
A delineator characterized in that tape is wrapped around a predetermined position on the upper pole and the lower end of the tape is attached to the upper end of the different diameter socket, or the different diameter socket is fixed to a predetermined position on the upper pole by a screw.

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