JP5204546B2 - Method for manufacturing sign post - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sign post that is installed mainly on a sidewalk and a boundary between a road and a sidewalk and functions as a sign for preventing an automobile from entering, and a manufacturing method thereof.

  As an example of a sign post installed on a road, a sign post provided with a post member having a lower end fixed to the road and an end member inserted and attached to an opening formed at the upper end of the post member. Is known (see, for example, Patent Document 1).

  The end member (cover 2) in the marker column disclosed in Patent Document 1 receives a light generation device (solar cell 7) for receiving light to generate power, and power supplied from the photovoltaic device. And a light emitting part (light emitting diode 4) capable of emitting light. The end member is formed with a claw portion (mounting claw portion 1a) so that the claw portion inserted into the column member (pole 9) from the upper end protrudes on the inner peripheral surface of the column member. The end member is attached to the upper end portion of the pillar member by being locked to the formed step portion (locking portion 8).

JP 2000-27129 A

  Conventionally, the end member attached to the upper end portion of the column member as described above has a problem that it is easily stolen. In particular, in the case where expensive electrical components such as a photovoltaic device and a light emitting unit are provided in the end member as in Patent Document 1, the end member is stolen for the purpose of these electrical components. There are many.

  Then, it is possible to attach an end member to a pillar member in the state where it is difficult to remove. However, when exchanging the end member, or when performing maintenance of the electrical component provided in the end member, the operator may remove the end member from the column member. In such a case, if it is difficult for the operator to remove the end member from the column member, there is a problem that the operation becomes complicated.

  In the configuration disclosed in Patent Document 1, the claw portion is locked inside the column member with respect to the step portion formed so as to protrude from the inner peripheral surface of the column member. It is difficult to remove the part member, which is suitable for preventing the end member from being stolen. However, since it is difficult for an operator who performs maintenance or the like to remove the end member, there is a problem in that the operation becomes complicated for the operator.

  The present invention has been made in view of the above circumstances, and is a marker column that can prevent the end member from being stolen and can be easily removed when an operator performs an operation. And it aims at providing the manufacturing method.

  The marker column according to the first aspect of the present invention includes a cylindrical column member having an opening at at least one end, an end member inserted into the opening and attached to one end of the column member, and the column A reflection member that is attached to the outer peripheral surface of the member and reflects light, and at least one through hole is formed in a region of the outer peripheral surface of the column member to which the reflection member is attached. The part member is formed with a claw part that is engaged with the through hole from the inside of the column member.

  According to such a structure, the nail | claw part of the edge part member latched by the through-hole of a pillar member from the inner side of the said pillar member can be covered with the reflective member attached to the outer peripheral surface of the said pillar member. As a result, the claw portion cannot be visually recognized from the outside, so that it is difficult for a person who intends to steal the removal of the end member to prevent the end member from being stolen. On the other hand, when an operator performs work, the end member can be easily removed by operating the nail part by removing the reflecting member and exposing the nail part.

  Moreover, since the nail | claw part can be covered using a reflection member, it is not necessary to provide the other member for covering a nail | claw part separately. As a result, it is possible to reduce the manufacturing cost and effectively prevent the end member from being stolen because it is difficult for a person who intends to steal that the end member cannot be removed unless the reflecting member is removed. Can do.

  The marker column according to the second aspect of the present invention is characterized in that a photovoltaic device for receiving light and generating electricity is held on the end member.

  According to such a configuration, the end member holding the photovoltaic device can be prevented from being stolen, and the end member can be easily removed when the operator performs work. Since the end member on which the photovoltaic device is held is particularly susceptible to theft, by adopting the configuration of the present invention, the end member can be more effectively prevented from being stolen. In addition, the operator can easily remove the end member by removing the reflecting member and perform maintenance of the photovoltaic power generation apparatus.

  The marker column according to a third aspect of the present invention is characterized in that the end member holds a light emitting portion capable of emitting light by the electric power supplied from the photovoltaic device.

  According to such a configuration, the end member holding the light emitting unit can be prevented from being stolen, and the end member can be easily removed when the operator performs work. Since the end member holding not only the photovoltaic device but also the light emitting part is more likely to be stolen, the end member can be more effectively prevented from being stolen by adopting the configuration of the present invention. Further, the operator can easily remove the end member by removing the reflecting member, and perform maintenance of the photovoltaic device and the light emitting unit.

  The marker column according to a fourth aspect of the present invention is characterized in that the end member is formed of a thermoplastic resin.

  According to such a configuration, since the end member is made of a thermoplastic resin, the impact absorbability is increased, so that the durability of the end member can be improved. In addition, when the end member is equipped with an electrical component such as a photovoltaic device or a light emitting unit, the shock absorption of the end member is increased, thereby preventing the failure of the electrical component. it can.

  The marker column according to the fifth aspect of the present invention is characterized in that the outer surface of the end member is plated.

  According to such a configuration, visibility is improved by plating the outer peripheral surface of the end member, so that it can function better as a marker column. Moreover, since the end member can be given an impression that the end member is more firmly attached to the person who intends to steal, the end member can be more effectively prevented from being stolen.

  According to the sixth method of the present invention for producing a marker pillar, one end is closed by injecting a material into a space formed between an inner mold and an outer mold that are relatively aligned by a guide pin. A column member forming step for forming a cylindrical column member, an opening forming step for forming an opening by cutting one end of the column member, an end member being inserted into the opening, The claw part formed in the end member is locked from the inside of the column member to the through hole formed in the column member at a position corresponding to the guide pin, thereby the end member is moved to the column member. An end member attaching step to be attached to one end of the reflecting member, and a reflecting member attaching step for covering the through hole with the reflecting member by attaching a reflecting member for reflecting light to the outer peripheral surface of the column member. about And features.

  According to such a configuration, it is possible to manufacture a marker column that exhibits the same effect as the first aspect of the present invention. In particular, by using the through hole formed in the column member corresponding to the guide pin for relatively aligning the inner mold and the outer mold, the claw portion is engaged with the through hole, thereby the end portion. The member can be attached to one end of the column member. Thereby, since it is not necessary to perform the process for forming a through-hole separately, the manufacturing process of a marker pillar can be simplified more.

  According to the present invention, the claw portion of the end member that is locked in the through hole of the column member from the inside of the column member is covered with the reflection member that is attached to the outer peripheral surface of the column member. Theft can be prevented. Moreover, when an operator performs work, the end member can be easily removed by removing the reflection member and exposing the claw portion.

  FIG. 1 is a diagram partially showing a configuration of a marker column 1 according to an embodiment of the present invention, in which one side is shown in a sectional view with respect to a central axis A and the other side is shown in a side view. Yes. This sign post 1 is mainly installed on the sidewalk and the boundary between the road and the sidewalk, and functions as a sign for preventing the entrance of a car. The post member 2 is erected on an installation surface such as a road. It has. In FIG. 1, only the structure of the upper end part of the column member 2 is shown.

  The column member 2 is formed in a cylindrical shape, and an opening 3 is formed at the upper end (one end) of the entire end surface. In this example, the column member 2 is formed in a cylindrical shape having an outer diameter of about 130 mm. However, the column member 2 is not limited to such a configuration, and may be formed in another cylindrical shape such as a hollow conical shape or a hollow quadrangular column shape. The lower end portion (the other end portion) of the column member 2 may have a shape opened by forming an opening or may be a closed shape.

  The column member 2 is elastically deformable by being formed of an elastic body. More specifically, the column member 2 is formed of a thermoplastic elastomer (TPE), and a known thermoplastic elastomer can be used without any particular limitation. Examples of the thermoplastic elastomer include polyester TPE, polyurethane TPE (TPU), polyolefin TPE (TPO), polystyrene TPE (TPS), polyamide TPE (TPAE), ionomer TPE, diene TPE, polyvinyl chloride. Examples thereof include TPE (TPVC), polyvinyl chloride / polyurethane polymer alloy TPE, and a mixture of a thermoplastic resin and rubber. Further, a thermoplastic elastomer in which rubber is mixed or finely dispersed in these thermoplastic elastomers can also be used. These thermoplastic elastomers can be used alone, and if necessary, two or more kinds may be mixed and used. The thermoplastic elastomer preferably has a hardness of 95 or less, more preferably 90 or less, in terms of JIS-A hardness. If the hardness is too high, damage may occur due to repeated bending. The thermoplastic elastomer usually has a hardness of 50 or more in JIS-A hardness.

  The opening 3 is closed by attaching the end member 4 to the upper end of the column member 2. The end member 4 is formed in a cylindrical shape whose upper end is closed, and the upper end is formed in a smooth spherical shape. The end member 4 has an outer shape corresponding to the column member 2. In this example, the end member 4 is formed in a cylindrical shape corresponding to the column member 2, and the outer diameter thereof substantially coincides with the outer diameter of the column member 2. However, similarly to the column member 2, the end member 4 may be formed in another cylindrical shape such as a hollow cone shape or a hollow square column shape.

  The end member 4 is made of, for example, a thermoplastic resin, and a known thermoplastic resin can be used without any particular limitation. Examples of the thermoplastic resin include PET, PBT, polypropylene terephthalate, polyalkylene terephthalate resin such as polyester of 1,4-cyclohexanedimethanol and terephthalic acid, polyethylene naphthalate, polypropylene naphthalate, 1,4-cyclohexanedimethanol and naphthalene. Polyalkylene naphthalate resin such as polyester with dicarboxylic acid, polycarbonate resin, polyphenylene oxide, polyphenylene sulfide, polyurethane resin, fluorine resin such as PFA, ASA resin, ABS resin, etc. and blend resin of resins selected from these resins And polymer alloys. The outer surface of the end member 4 is plated by, for example, chrome plating.

  At the lower end portion of the end member 4, one or a plurality of claw portions 5 to be inserted into the opening 3 are formed. When a plurality of claw portions 5 are formed, the claw portions 5 are formed at the lower end portion of the end member 4 so as to be arranged at intervals in the circumferential direction. As for the said nail | claw part 5, the lower end part can be rock | fluctuated to radial direction by cantilevering an upper end part. A projection 6 is formed on the outer surface of the lower end portion of the claw portion 5, and the projection 6 enters the through hole 7 formed at a corresponding position of the column member 2 from the inside, so that the claw portion 5 It is locked to the through hole 7. In addition, as long as at least one said through-hole 7 is formed, only one may be sufficient and multiple may be formed. Moreover, the nail | claw part 5 may be reinforced by attaching the reinforcement member which consists of a metal plate etc. to the inner surface.

  A concave portion 8 that is recessed downward is formed on the upper end surface of the end member 4, and a hollow fitting member 9 made of a transparent or translucent resin is fitted into the concave portion 8. The upper surface of the fitting member 9 is formed in a spherical shape, and when the fitting member 9 is fitted into the recess 8, the outer surfaces of the end member 4 and the fitting member 9 are smoothly continuous. Yes. A photovoltaic device 11 is provided in the fitting member 9. The photovoltaic device 11 is a so-called solar panel, and generates power by receiving light transmitted through the fitting member 9. The photovoltaic device 11 is held by the end member 4 by attaching the fitting member 9 provided with the photovoltaic device 11 to the end member 4.

  Inside the end member 4, a circuit board 12 and a capacitor 13 mounted on the circuit board 12 are provided. The photovoltaic device 11 is connected to the capacitor 13 via the circuit board 12, and the electric power supplied from the photovoltaic device 11 is stored in the capacitor 13. One or a plurality of (for example, four) light emitting units 14 are connected to the circuit board 12. The light emitting unit 14 is made of, for example, an LED (Light-Emitting Diode), and can emit light by electric power supplied from the capacitor 13. The upper end portion (for example, above the terminal of the light emitting portion 14) in the end member 4 is covered (sealed) with a resin plate, the periphery is treated with a caulking material, and an epoxy resin or the like is enclosed. By filling the material, moisture countermeasures for electrical components such as the circuit board 12, the capacitor 13, and the light emitting unit 14 are taken.

  The light emitting unit 14 is held by the end member 4 by being attached to the outer peripheral surface of the end member 4. When a plurality of light emitting portions 14 are provided, the light emitting portions 14 are provided on the outer peripheral surface of the end member 4 so as to be arranged at intervals in the circumferential direction. According to the above configuration, the photovoltaic device 11 generates power in the daytime, and the generated power is stored in the capacitor 13, so that the light emitting unit 14 is used using the power stored in the capacitor 13 even at night. Can be turned on or blinked, so that the visibility of the sign post 1 at night can be improved.

  The column member 2 is formed with a recess 21 along its upper edge, and the recess 22 is also formed at a position where the end member 4 contacts the upper edge of the column member 2. A first annular recess 23 is formed by 22. In addition, a second annular recess 24 is formed below the first annular recess 23 in the column member 2 so as to be spaced from the first annular recess 23. The first annular recess 23 and the second annular recess 24 are formed at the same depth, and the reflecting member 10 having a thickness corresponding to the depth is provided in the first annular recess 23 and the second annular recess 24. Are attached to each. Thereby, the reflecting member 10 is attached so that the outer peripheral surface thereof extends substantially in the same plane as the outer peripheral surface of the column member 2. In FIG. 1, the reflecting member 10 is shown in the cross-sectional view shown on one side with respect to the central axis A, but the reflecting member 10 is omitted in the side view shown on the other side with respect to the central axis A. doing.

  The reflection member 10 is a belt-like sheet member that diffuses and reflects incident light, and is attached by being wound around the outer peripheral surface of the column member 2. The surface of the reflecting member 10 facing the column member 2 is coated with an adhesive, and the reflecting member 10 is firmly attached to the outer peripheral surface of the column member 2 through the adhesive. It is preferable that a primer treatment is applied to a region on the outer peripheral surface of the column member 2 where the reflecting member 10 is wound.

  The reflection member 10 attached to the first annular recess 23 is attached so as to cover the boundary line by being wound in the circumferential direction in a region corresponding to the boundary line between the column member 2 and the end member 4. . On the other hand, the reflecting member 10 attached to the second annular recess 24 is attached so as to cover the through hole 7 by being wound in the circumferential direction in a region corresponding to the through hole 7.

  FIG. 2 is a schematic view showing an example of a manufacturing mode of the column member 2 in the marker column 1 shown in FIG. The column member 2 is formed by, for example, injection molding, and in the manufacturing process, a softened or melted thermoplastic elastomer is injected into a space formed between the inner mold 101 and the outer mold 102, and the thermoplastic The column member 2 is formed by curing the elastomer.

  The inner mold 101 is a columnar (for example, columnar) mold whose outer surface corresponds to the internal space of the column member 2. On the other hand, the outer mold 102 moves between a position away from the outer peripheral surface of the inner mold 101 (see FIG. 2A) and a position closer to the outer peripheral surface of the inner mold 101 (see FIG. 2B). In the state shown in FIG. 2B, the surface of the outer mold 102 that faces the outer peripheral surface of the inner mold 101 has a shape corresponding to the outer surface of the column member 2 to be formed. Although not shown in FIG. 2, a convex portion having a shape corresponding to the first annular concave portion 23 and the second annular concave portion 24 is formed on a surface of the outer die 102 facing the outer peripheral surface of the inner die 101. Yes.

  In this example, the outer mold 102 is divided into two molds, and these molds are movable in the radial direction with respect to the inner mold 101. One or a plurality of guide pins 103 extending toward the inner mold 101 are formed on a surface of the outer mold 102 that faces the outer peripheral surface of the inner mold 101. When the outer mold 102 moves from the state shown in FIG. 2A toward the inner mold 101 side and reaches the state shown in FIG. 2B, the tip of the guide pin 103 contacts the outer peripheral surface of the inner mold 101. Touch.

  In this state, the inner die 101 and the outer die 102 are relatively aligned by the guide pin 103, and the distance between the outer peripheral surface of the inner die 101 and the inner peripheral surface of the outer side 102 facing the outer peripheral surface becomes substantially uniform. . In this state, a thermoplastic elastomer is injected into the space formed between the inner mold 101 and the outer mold 102, and as shown by hatching in FIG. The column member 2 is formed.

  After the column member 2 is formed, the formed column member 2 can be taken out by moving the outer mold 102 away from the inner mold 101 as shown in FIG. become. At this time, by removing the guide pin 103 from the formed column member 2, the through hole 7 is formed at a position corresponding to the guide pin 103 in the column member 2. In the formed column member 2, as shown by an alternate long and short dash line in FIG. 2 (c), the closed end is cut in a direction orthogonal to the central axis A, whereby the opening 3 described above is formed. Is formed. Note that the guide pin 103 is not limited to a configuration in which the outer die 102 is brought into contact with and separated from the outer peripheral surface of the inner die 101 by movement of the outer die 102. It is also possible to adopt.

  FIG. 3 is a flowchart showing an example of a manufacturing process when manufacturing the marker pillar 1 shown in FIG. When manufacturing the marking pillar 1, first, as described with reference to FIG. 2, after the pillar member 2 is formed (step S <b> 101: pillar member forming step), one end of the pillar member 2 is cut. Thus, the opening 3 is formed (step S102: opening forming step).

  Thereafter, the end member 4 is inserted into the opening 3 of the column member 2 to attach the end member 4 to one end of the column member 2 (step S103: end member attachment step). At this time, the claw portion 5 formed in the end member 4 is locked from the inside of the column member 2 to the through hole 7 formed at a position corresponding to the guide pin 103 in the column member 2. Yes. Thereafter, the reflecting member 10 having a corresponding shape is wound and attached to the first annular recess 23 and the second annular recess 24 (step S104: reflection member attaching step). Thereby, the boundary line between the column member 2 and the end member 4 is covered by the reflecting member 10 attached to the first annular recess 23, and the through hole 7 is formed by the reflecting member 10 attached to the second annular recess 24. Covered.

  In the present embodiment, the claw portion 5 of the end member 4 that is locked in the through hole 7 of the column member 2 from the inside of the column member 2 is covered with the reflection member 10 that is attached to the outer peripheral surface of the column member 2. Can do. Thereby, since the claw part 5 cannot be visually recognized from the outside, it is difficult for a person who intends to steal the removal of the end member 4 to prevent the end member 4 from being stolen. On the other hand, when the operator performs work, the end member 4 can be easily removed by operating the nail part 5 by removing the reflecting member 10 and exposing the nail part 5.

  Moreover, since the nail | claw part 5 can be covered using the reflection member 10, it is not necessary to provide the other member for covering the nail | claw part 5 separately. As a result, the manufacturing cost can be reduced, and it is difficult for a person who intends to steal that the end member 4 cannot be removed unless the reflecting member 10 is removed, so that the end member 4 can be effectively stolen. Can be prevented.

  In particular, in the present embodiment, the end member 4 holding the photovoltaic device 11 and the light emitting unit 14 can be prevented from being stolen, and the end member 4 can be easily used when an operator performs work. Can be removed. Since the end member 4 holding the photovoltaic device 11 and the light emitting unit 14 is particularly susceptible to theft, the end member 4 can be more effectively prevented from being stolen by adopting the configuration of the present embodiment. can do. Further, the operator can easily remove the end member 4 by removing the reflecting member 10 and perform maintenance of the photovoltaic device 11 and the light emitting unit 14. However, the end member 4 may be configured not to hold at least one of the photovoltaic device 11 and the light emitting unit 14.

  In the present embodiment, since the end member 4 is formed of a thermoplastic resin, the impact absorbability is increased, so that the durability of the end member 4 can be improved. Further, when the end member 4 is provided with electrical components such as the photovoltaic device 11 and the light emitting unit 14 as in the present embodiment, the shock absorption of the end member 4 is increased. The failure of the electrical component can be prevented.

  Furthermore, in this embodiment, since the visibility is improved by plating the outer peripheral surface of the end member 4, the end member 4 can function more favorably as the marker column 1. Moreover, since the end member 4 can be given the impression that the end member 4 is more firmly attached to the person who tries to steal, the end member 4 can be more effectively prevented from being stolen.

  Moreover, according to the manufacturing method of the marker pillar 1 as described with reference to FIG. 2, the pillar member 2 is formed corresponding to the guide pin 103 for relatively aligning the inner mold 101 and the outer mold 102. The end member 4 can be attached to one end portion of the column member 2 by locking the claw portion 5 in the through hole 7 using the through hole 7. Thereby, since it is not necessary to perform the process for forming the through-hole 7 separately, the manufacturing process of the marker pillar 1 can be simplified more.

  In the above embodiment, the configuration in which the sign post 1 is installed on a road or the like has been described. However, the present invention is not limited to a sidewalk or a road, but can be applied to a sign post 1 installed in any other place. is there.

It is the figure which showed partially the structure of the marker pillar which concerns on one Embodiment of this invention, and while showing one side with sectional drawing with respect to a central axis, the other side is shown with the side view. It is the schematic which showed an example of the manufacture aspect of the pillar member in the marker pillar shown in FIG. It is the flowchart which showed an example of the manufacturing process at the time of manufacturing the marker pillar shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Marking pillar 2 Column member 3 Opening part 4 End part member 5 Claw part 7 Through-hole 10 Reflective member 11 Photoelectric generator 14 Light emission part 23 1st annular recessed part 24 2nd annular recessed part 101 Inner type 102 Outer type 103 Guide pin

Claims (1)

A column member forming step for forming a cylindrical column member having one end closed by injecting a material into a space formed between the inner mold and the outer mold relatively aligned by the guide pins; ,
An opening forming step for forming an opening by cutting one end of the pillar member;
An end member is inserted into the opening, and a claw formed on the end member is locked from the inside of the column member into a through hole formed at a position corresponding to the guide pin in the column member. An end member attaching step for attaching the end member to one end of the pillar member;
A method for manufacturing a marker column, comprising: a reflecting member mounting step for covering the through hole with the reflecting member by mounting a reflecting member for reflecting light on the outer peripheral surface of the column member.

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