JP3065788U - Decorative body rotation support device - Google Patents

Abstract

(57) [Summary] [Object] To provide a rotation support device that prevents rusting due to rotational friction of a decorative body containing an iron component. The present invention has at least three protruding contacts 15 formed of a wear-resistant and rust-resistant material on the decorative body 11 side, and has a rotating surface 21 on which the contacts 15 slide. The support member 20 formed of a non-ferrous material having a small coefficient of friction is provided on the base side.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a device for supporting the rotation of a decorative body which is formed using a material containing an iron component and is provided on a base so as to be rotatable around a vertical axis as seen in a cast iron bollard and the like. .

[0002]

[Prior art]

 For example, a type of bracelet attached so that a decorative body in the shape of a soccer ball can be turned by hand is becoming increasingly popular, and a rotating device for that purpose has a configuration as described in Utility Model Registration No. 300966. There are things. In the case of the present invention, the contacts are cast (formed) in a decorative body that is assumed to be made of cast iron, and a sliding plate is placed on the rotating surface of the columnar object to reduce the frictional resistance of the contacts. The decoration can be turned easily.

However, it is clear that the contact between the cast iron and the stainless steel plate causes the friction of the contact to progress with time, and the scraped iron powder reacts with moisture in the air to generate rust. Was. It has also been pointed out that this rust also occurs between the retaining screw and the inner cylindrical shaft member, causing a problem that it may flow out as red juice due to rainfall and the like, and that it is unsightly.

[0004]

[Problems to be solved by the invention]

 The present invention has been made in view of the above point, and an object of the present invention is to provide a rotation support device which does not cause a problem of rust even in a decorative body containing an iron component.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the present invention is to decorate a protruding contact formed of a wear-resistant material which is hard to rust, in order to prevent the iron component shaved by rotational friction from being oxidized and rusted. At least three positions are provided on the body side, and a bearing member made of a non-ferrous material having a small coefficient of friction and having a rotating surface on which the contacts slide is provided on the base side.

[0006]

[Embodiment of the invention]

 The device for supporting rotation of a decorative body according to the present invention is formed of a material containing an iron component, and is provided on a base so as to be rotatable about a vertical axis. The decorative body has a concrete or abstract shape suitable for rotating, for example, imitating a ball, an animal, a doll, etc., but is specifically determined by the installer.

The present invention can be applied to a bollard provided on a boundary between a road and a sidewalk or along a road, a fence post on a sidewalk, and the like. Thus, the base is applied to the pillars, and the decoration is applied to the moving decorations. These decorative bodies and bases shall be cast with cast iron or the like. That is, it contains an iron component.

[0008] Since the decorative body and the base come into contact with each other on the rotating surface, the rotating decorative body is supported for the purpose of preventing the iron component shaved by the rotational friction from being oxidized and rusting. For this purpose, a rotation support device comprising a protruding contact and a bearing member is provided.

[0009] The contact element used is formed in a protruding shape from a rust resistant material having wear resistance. For example, stainless steel, which contains an iron component but does not rust, is a material that meets this purpose because it is a ferrous material like cast iron. The contact made of such a material shall be attached to at least three places on the circumference around the vertical axis of rotation on the part of the decoration facing the rotating surface, and shall be able to stably support the decoration. .

The bearing members provide a rotating surface on which their contacts slide. Therefore, a non-ferrous material having a small coefficient of friction is suitable for the material of the bearing member. For example, a hard synthetic resin can be a material suitable for this purpose. This support member is provided on the base side at a position where the decorative body is to be mounted. The base is pillar-shaped in the case of a bollard, but is not limited thereto.

It is a desirable condition that the bearing member has a substantially disk-shaped or column-shaped shape, and that the decorative body has a cylindrical shape fitted on the outer periphery of the bearing member. In such a fitting structure, it is easy to provide a means for preventing the decorative body comprising the protrusion and the recess from coming off. The retaining means is also made of a material which is not easily rusted.

[0012]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings. The decorative body 11 is made of cast iron, has a decorative part 12 at an upper part, and has a cylindrical lower cylindrical part 13 at a lower part.

The lower cylindrical portion 13 has an open lower surface, and a ceiling surface 14 faces a rotating surface. Three projecting contacts 15 are arranged on the ceiling surface 14 at equal intervals around the center axis of the rotating surface. The contact is made of stainless steel and has a stud shape having a spherical head 16 at the end of the shaft 17, and is fixed by implanting the shaft 17 on the ceiling surface 14. A female screw hole 18 penetrating the inside and outside of the lower cylindrical portion 13 is formed, and a screw body is attached as a protrusion 19 constituting a retaining means.

The support member 20 is mounted on the top of a base 26 forming a bollard. The support member 20 is a disk-shaped member formed thick in the height direction, and is made of a so-called engineering plastic such as Delrin (a product of Dupont), Cercon (a product of Celanese Plastics), Duracon (a product of polyplastic), or the like. Known polyacetal resins and the like are preferably used because they have a small coefficient of friction. The bearing member 20 has a rotating surface 21 on the upper surface, and provides a surface on which the contact 15 can be smoothly moved by being brought into contact therewith.

The support member 20 has a concave portion 22 on the outer peripheral surface for receiving the projection 19 of the retaining means. The exemplary bearing member 20 is fixed to the top of the base 26. Reference numeral 23 denotes a hole formed in the center of the base and through which a bolt 24 serving as a fixing means passes. The bolt 24 is screwed into a bolt hole 25 at the top of the base. It is preferable that the protrusions 19 of the retaining means and the bolts 24 are also formed of a material which is not easily rusted.

As illustrated, the decorative body 11 has a cylindrical shape with only the lower surface open, and is fitted on the outer periphery of the support member 20 to cover and hide the entire rotation support device 10. Since there is only one gap 27 between them, rain and snow hardly enter the inside. The load of the decorative body 11 is supported by the contact surface between the contact 15 and the rotating surface 21, both of which are made of a material which does not easily rust or which do not rust. Made of similar material. Therefore, the place where rust can appear is limited to the screw hole, and rust does not become severe due to friction.

[0017]

[Effect of the invention]

 Since the present invention is constructed and operates as described above, it is possible to provide a rotating support device that does not cause a problem of rust even in a decorative body containing an iron component such as a bollard. To play.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a decorative body rotation support device of the present invention.

FIG. 2 is a partially broken plan view of the device.

FIG. 3 is a partially cutaway side view of the same.

FIG. 4 is a front view of a car stop to which the present invention device is applied.

Claims (3)

[Utility model registration claims] 1. A rotation support device for a decorative body formed of a material containing an iron component and provided on a base so as to be rotatable about a vertical axis, wherein the iron component shaved by rotational friction is oxidized. In order to prevent rusting, at least three protruding contacts formed of a rust-resistant material having wear resistance are arranged on the side of the decorative body, and the contact has a rotating surface on which the contacts slide. A rotation support device for a decorative body, wherein a support member made of a non-ferrous material having a small coefficient is disposed on a base side. 2. The bearing member has a substantially disk-shaped or column-shaped shape, and the decorative body has a cylindrical shape fitted on the outer periphery of the bearing member. The rotation support device for a decorative body according to claim 1, further comprising a stopping means between the bearing member and the decorative body. 3. The apparatus according to claim 1, wherein the contact is made of a metal material such as stainless steel, and the support member is made of a hard synthetic resin material such as polyacetal.