JPS6233190Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cap for a tube or rod-shaped body.

(Prior Art) Conventionally, as a cap that is placed over the end of a tube or a rod-shaped body, there is a cap that has a plurality of ribs protruding from the inner surface of the cylindrical cap.

(Problems to be solved by the invention) However, since such conventional caps are provided with only one stage of ribs, there are variations in the outer diameter of the tubes and rods on which the caps are placed. If the outer surface is uneven, a gap is created between the ribs and the outer surface of the tube or rod-shaped body, making it impossible to tightly cover the cap with the tube or rod-shaped body, resulting in the disadvantage that the cap is likely to come off.

(Means for Solving the Problems) In view of the drawbacks of the conventional art, the present inventor has devised a method for use with tubes and rod-shaped bodies that eliminates the above-mentioned drawbacks by providing two-stage ribs on the inside of the cap. It provides a cap.

(Function) In the present invention, a rib is provided axially protruding from the inner surface of the cylindrical attachment part of the cap body, and a small elastic rib is provided protrudingly from the upper part of the rib, thereby making it possible to prevent variations in the outer diameter. The cap is tightly placed over a tube or rod-shaped body that has irregularities.

(Example) The present invention will be described below with reference to the drawings.

In the drawing, 1 is a cap body made of polyethylene, polypropylene, polyvinyl chloride,
It is made from synthetic resin such as polyamide. The cap body 1 only needs to have at least a cylindrical attachment part 2 that can be placed over the end of the tube or rod-shaped body 3.
The shape is not particularly limited. For example, in the case of FIGS. 1 and 2, the cap body 1 is simply shaped like a cylinder with a bottom, and the cap body 1 itself also serves as the cylindrical attachment part 2. In the case of FIG. 3, the cap body 1 is provided with a taper 5 on the outer surface of the cylindrical attachment portion 2, and in the case of FIG.
A pedestal 6 is provided at the end. In addition, in the case of FIG. 5, the cap body 1 is approximately U.
A letter-shaped receiver 7 is provided, and in the case of FIG. 6, a collar portion 8 is provided at the periphery of the cylindrical attachment portion 2. The cap bodies 1, 1 shown in FIGS. 5 and 6 are respectively placed over the upper and lower ends of a tube or rod-shaped body 9, and are used as tree branch holders.

Further, a plurality of ribs 3, 3... are provided on the inner surface of the cylindrical attachment part 2 to protrude along the axial direction of the cylindrical attachment part 2, and small ribs 4, 4... are provided protrudingly along the length direction of the ribs 3, 3.... The ribs 3, 3, . . . are provided on the inner surface of the cylindrical attachment portion 2 at approximately equal intervals as shown in FIGS. 7 and 8. Further, in the case of FIG. 7, one small rib 4, 4... is provided for each rib 3, 3..., and in the case of FIG. 8, a plurality of small ribs 4 are provided for one rib 3. , 4... are provided. Furthermore, small rib 4,
4 has elasticity, and when the cap body 1 is placed over the end of the tube or rod-like body 9, it is pressed by the outer surface of the tube or rod-like body 9, and due to the rebound elasticity, the tube,
It is designed to come into close contact with the outer surface of the rod-shaped body 9.

The tube or rod-shaped body 9 is made of metal, synthetic resin-coated metal, synthetic resin, wood, etc., and its cross-sectional shape is not particularly limited, such as circular or rectangular. Further, the outer surface of the tube or rod-shaped body 9 may be smooth or may be provided with irregularities.

(Effects of the invention) As detailed above, the cap of the present invention has elastic small ribs that protrude from the upper part of the ribs that protrude from the inner surface of the cylindrical mounting part, so that the protruding height of the small ribs can be reduced. Within this range, even if the outer diameter of the tube or rod varies, the small ribs will be pressed against the outer surface of the tube or rod due to their rebound resilience, and the cap can be firmly fixed, and the Even if the outer diameter of the cap is approximately equal to the root of the small rib, that is, the tip of the rib, the contact area between the outer surface of the tube or rod and the rib is small, and the cap can be smoothly inserted into the tube or rod. Further, if the outer surface of the tube or rod-shaped body has irregularities, the cap can be inserted even if the tube or rod-shaped body has irregularities by positioning the irregularities between adjacent ribs.

[Brief explanation of the drawing]

1 to 6 are perspective views showing embodiments of the cap of the present invention, and FIGS. 7 to 8 are sectional views of the cap of the present invention, respectively. 1... Cap body, 2... Cylindrical mounting part, 3...
...Rib, 4...Small rib, 5...Taper, 6...
Pedestal, 7...Receiver, 8...Brim part, 9...Pipe, rod-shaped body.

Claims (1)

[Scope of utility model registration request] A plurality of ribs 3, 3, . A cap for a tube or rod-shaped body in which ribs 4, 4... project along the length direction of the ribs 3, 3....