JP3165811U - Safety rubber tip of supplementary cane and eyelash cane - Google Patents

Abstract

An object of the present invention is to provide a safety cane rubber tip which does not slip easily even in rainy weather. SOLUTION: Using a rubber adhesive, a hard synthetic natural rubber shock absorbing disk having a thickness of 5 mm, a diameter of 40 mm or 50 mm is stuck concentrically to a supplementary stick and a rubber tip of a toe stick, and 3.1 mm × 1.6 mm. Acrylic nitrile / butadiene synthetic rubber discs of 5 mm thickness and 40 mm or 50 mm diameter, each having a kinetic friction coefficient of 0.30 or more, each of which is reinforced with five steel screws and further having a kinetic friction coefficient of 0.30 or more, are further stuck using a rubber adhesive. [Selection diagram] Fig. 1

Description

  This invention relates to the production of safety rubber tips for non-slip supplementary canes and eyelashes.

  As shown in FIGS. 1 to 3, the supplementary cane and the brim cane safety rubber tip are provided with a “slip-fastened NBR rubber disc” which is a new kind of rubber that is difficult to slip on the bottom surface of the rubber tip.

Utility model registration documents

  None

Non-utility model registration documents

  None

The number of users of supplementary canes and eyelashes is estimated to be more than 400,000 nationwide, and many users want the emergence of safe canes that do not slip even in the rain. Since the conventional supplementary cane rubber tip has a small contact area and is not sufficiently slip-processed, it is slippery when the cane is slightly tilted. It is slippery and dangerous on wet roads, floors, glass plates, tiles, and iron plates. The danger increases especially on inclined surfaces.
Therefore, 5mm thickness, 40mm, 50mm and 70mm diameter NBR rubber discs made of non-slip commercial rubber with a dynamic friction coefficient of 0.3 or more are attached to the bottom of the cane rubber for safety. The challenge is to create a cane rubber tip.

(Claim 1)
NBR rubber disc that is injection-molded to a bottom diameter of 40mm and 50mmn and partially reinforced (NBR or EPDM) standard cane rubber tip, 5mm in thickness and 40mm and 50mm in diameter, respectively, with a rubber adhesive Wear.
Products with a cane rubber tip bottom diameter of 70 mm: A rubber adhesive, a hard synthetic natural rubber disc with a thickness of 5 mm and a diameter of 70 mm is pasted on the same rubber tip as above, and the same diameter with the rubber adhesive. Install the NBR rubber disc.
(Claim 2)
Using commercially available cane rubber tips Products with a rubber tip bottom diameter of 40 mm and 50 mm: A rubber adhesive is used to attach a hard synthetic natural rubber disc with a thickness of 5 mm to a commercially available rubber tip on a concentric circle. . The rubber tip and the rubber plate are further fixed with five steel screws (3.1 mm × 1.6 mm) (FIG. 3). A rubber disc and a “slip-fastened NBR rubber disc” cut into 40 mm and 50 mm, respectively, are attached with a rubber adhesive.
(Claim 3)
“NBR rubber disc with anti-slip processing”: Adds water-soluble crystal vulcanized rubber to acrylonitrile / butadiene synthetic rubber (NBR), creates fine irregularities on the surface, and forms an appropriate sole processed and molded rubber plate This is a disk cut out. Use a commercially available rubber plate with a dynamic friction coefficient of 0.30 or more.

  The cane rubber tip equipped with the “NBR rubber disc with anti-slip processing” hardly slipped even if it was tilted 30 degrees or more on a concrete surface wet with water, a glass plate, a tile, or a stainless steel plate. Similarly, it hardly slipped on glass plates, tiles, and stainless steel plates sprinkled with soapy water or lubricating oil. It was safe to use on uneven gravel slopes in the open air, sloping wet roads, tiles, and iron plates. In addition, the rubber tip using this rubber disc has very strong wear resistance, and is considered to have a significantly longer life than conventional rubber tips.

  It is sectional drawing of a safety cane rubber tip with a cane rubber tip bottom diameter of 40 mm and 50 mm.   It is a sectional view and a photograph of a safety cane rubber tip having a cane rubber tip bottom diameter of 70 mm.   It is sectional drawing and a photograph figure of a cane rubber tip bottom 40 mm and a safety cane rubber tip which manufactured using a commercially available cane rubber tip.

Several embodiments of the invention are shown in FIGS.
For the cane rubber tip, an injection molded product (NBR or EPDM) that conforms to the standards of the Product Safety Association 18 Safety Company 130 (Standard for Bar Claw Certification and Confirmation Method) is used. Depending on the thickness of the stick of the cane, the rubber tip size varies. A rubber adhesive is used, and a 5 mm thick, 40 mm and 50 mm diameter “NBR rubber disc with slip-processed” is attached to the bottom of the rubber tip (FIG. 1).
When manufacturing a cane rubber tip with a bottom diameter of 70 mm, a rubber adhesive is used, a thickness of 5 mm, a 70 mm diameter hard synthetic natural rubber disc is attached to the rubber tip as an auxiliary plate, and a rubber adhesive is used to obtain a thickness. 5mm, diameter 70mm "NBR rubber disk with anti-slip" is installed (Fig. 2).
When using commercially available cane rubber: Since the cane rubber tip has a small bottom area and various rubber properties, it is attached to the rubber tip using a hard synthetic natural rubber disk with a thickness of 5 mm and a diameter of 40 mm and 50 mm as an auxiliary plate. To do. It is mounted on a concentric circle with a rubber adhesive and further reinforced with five steel screws (3.1 mm x 1.6 mm). Furthermore, using rubber adhesive, 5mm thickness, 40mm diameter and 50mm diameter "NBR rubber disk with anti-slip process" is installed (Fig. 3).

  About 20 cane rubber tips with a cane tip thickness of 16 mm, 19 mm, 21 mm and 29 mm were produced. The utility and performance were verified by three monitors.

  The number of cane users is estimated to be over 400,000 nationwide, and the emergence of safe canes that do not slip is desired by many users. Since there are no technical difficulties in production, the possibility of production is great.

1. “NBR rubber disc with anti-slip processing”: A water-soluble crystal vulcanized rubber is added to acrylonitrile / butadiene synthetic rubber (NBR) to create fine irregularities on the surface, and an appropriate sole processed and molded rubber plate Cut out into a disk shape. Use a commercially available rubber plate with a dynamic friction coefficient of 0.3 or more.
2. NBR: Acrylonitrile butadiene synthetic rubber. EPDM: Ethylene / propylene synthetic rubber Symbols in Fig. 1: (1) Rubber tip (NBR or EPDM products with a hardness of 50 or more and 70 or less by type A durometer specified in JIS K5253) (2) Holding aluminum alloy pipe (height 5 mm) (3) Iron holding Disc (thickness 1 mm x cane diameter) (4) “NBR rubber disc with anti-slip treatment” (thickness 5 mm, diameter 40 or 50 mm) (use a commercially available rubber plate with a dynamic friction coefficient of 0.3 or more)
4). Symbols in Fig. 2: (1) Rubber tip (NBR or EPDM products with a hardness of 50 or more and 70 or less by type A durometer specified in JIS K5253) (2) Holding aluminum alloy pipe (height 5 mm) (3) Iron holding Disc (thickness 1mmX cane diameter) ▲ 4 ▼ Hard synthetic natural rubber disc (thickness 5mm, diameter 70mm) ▲ 5 ▼ "NBR rubber disc processed by slipping" (thickness 5mm, diameter 70mm) (dynamic friction) (Use commercially available rubber plate with a coefficient of 0.3 or more)
5. Symbols in FIG. 3: (1) Commercial cane rubber tip (2) Hard synthetic natural rubber disk (3) Steel screw (3.1 mm x 1.6 mm) (4) "NBR rubber disk with anti-slip finish" (thickness) 5mm in diameter, 40mm or 50mm in diameter) (Use a commercially available rubber plate with a dynamic friction coefficient of 0.3 or more) ▲ 5 ▼ Steel retaining disk

Claims (3)

Using rubber adhesive, stick the NBR rubber disc with a thickness of 5 mm and a diameter of 40 mm and 50 mm, respectively, to the rubber tip (standard product) of the supplementary cane and eyelash cane, and it will not slip. Make a point.
A rubber adhesive is used to make a 70mm diameter rubber tip, a 5mm diameter 70mm hard synthetic natural rubber disc is attached to the rubber tip, a rubber adhesive is used, and a 5mm thickness 70mm "slip on it. Affixed NBR rubber disc "to make a safety cane rubber tip that does not slip Utilize commercially available supplementary canes and eyelashes.
Using rubber adhesive, affixing a supplementary cane and a brim cane rubber tip and a hard synthetic rubber disc with a thickness of 5 mm, a diameter of 40 mm and a diameter of 50 mm respectively on a concentric circle, and with 3.1 mm × 1.6 mm steel screws Fasten and strengthen. Using a rubber adhesive, a 5 mm thick, 40 mm and 50 mm diameter “slip-fastened NBR rubber disc” is affixed thereon to create a non-slip safety cane rubber tip.   "NBR rubber disk with anti-slip treatment" means that water-soluble crystal vulcanized rubber is added to acrylonitrile / butadiene synthetic rubber (NBR) for anti-slip, making fine unevenness on the surface, and more appropriate A rubber plate that has been processed and molded into a sole and cut into a disk shape. Use a commercially available rubber plate with a dynamic friction coefficient of 0.30 or more. This type of rubber plate is generally used for shoe soles. The rubber product name is not specified.