JP2504660Y2 - Cap mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a cap mounting structure for an applicator such as a writing implement and a cosmetic implement. Here, examples of the writing instrument include a fountain pen, a marker, a mechanical pencil, and a correction fluid, and examples of the makeup instrument include an eyeliner.

(Prior Art) Conventionally, various cap mounting structures are known. As one of them, there is known one in which the cap and the main body are fitted in a concavo-convex manner, and abutting wall portions are provided on both, and the mounting position is regulated by abutting at these abutting portions. There is.

(Problems to be Solved by the Invention) In the cap mounting structure as described above, the abutting portion may be made of a hard material or a soft material as appropriate. If it is hard to feel and hard, you can get a feeling of fitting that the cap is securely attached, but on the other hand, the impact applied to the abutment wall part becomes large and the abutment part is damaged or deformed. . If the impact applied to the abutting portion is reduced by reducing the fitting force, the fitting becomes insufficient.

(Means for Solving the Problems) In the present invention, the cap and the main body are fitted in a concavo-convex manner, and hard abutting wall portions are provided on both, and the mounting position is regulated by abutting on these abutting wall portions. In the cap mounting structure configured as described above, a cap mounting structure is provided in which an elastic body that allows elastic displacement of the abutting wall portion is arranged at the back of the abutting wall portion on at least one side of the cap and the main body. It is what

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

In the description, the left side of the drawing is called the front and the right side of the drawing is called the rear.

A first embodiment is shown in FIGS. 1 and 2. This is an example of applying a general fountain pen structure. Reference numeral 1 indicates a shaft cylinder having a writing portion (not shown) at its tip and accommodating the ink tank 2 therein, and includes a front shaft 1a, a center shaft 1b, and a rear shaft 1c. The rear part of the front shaft 1a is formed in a step shape with a large diameter part and a small diameter part, and a ring-shaped rear member 1d consisting of the large diameter part and the small diameter part is press-fitted onto the outer circumference of the large diameter part. Further, a screw 1e is formed on the outer circumference of the small diameter portion of the front shaft 1a so as to be screwed with the center shaft 1b.

The cloth body 1f is mounted on the center shaft 1b with its mounting end folded inward and fixed by the front member 1g and the rear core 1j. The front member 1g is composed of a large-diameter portion and a small-diameter portion, and a screw 1i is formed on the inner circumference. Center axis
The small diameter portion of the front member 1g is press-fitted into 1b. The middle pipe P is press-fitted in the rear of the front member 1g. A core 1j is press-fitted after forming a screw 1k on the inner periphery behind the center shaft 1b.

The rear shaft 1c has a large diameter portion and a small diameter portion, and a screw 11 is formed on the outer circumference of the small diameter portion. A metal ring 1n having a convex portion 1m formed therein is screwed to the rear side.

A metal ring-shaped member 3 having a large-diameter portion and a small-diameter portion is arranged between the center shaft 1b and the rear shaft 1c, and the step portion 3a serves as an abutting wall portion. A ring-shaped member 4 made of an elastic member is arranged on the back of the abutting wall portion to enable elastic displacement of the abutting wall portion. Reference numeral 5 is a cap. Inside the cap 5, a middle cap 5b made of polypropylene having a concave portion 5a formed on the inner periphery thereof.
Attach. Metal spring steel on the inner surface of the front of the cap 5
Press in 5c. A metal ring member 5d is attached to the front of the cap 5, and the end portion 5e serves as an abutting wall portion.

The cap 5 and the shaft cylinder 1 are fitted in the concave portion 5a provided on the inner surface of the middle cap 5b and the convex portion 1m of the metal ring 1n attached to the rear shaft 1c, and the metal arranged between the middle shaft 1b and the rear shaft 1c. The mounting position is regulated by the contact between the stepped portion 3a of the ring-shaped member 3 and the end 5e of the ring member 5d attached to the front of the cap 5. FIG. 3 shows a second embodiment. Basically the same parts as those in the first embodiment are designated by the same reference numerals. In the present example, the rear end face 3d of the metal ring-shaped member 3 having the large diameter portion 3c and the small diameter portion 3b corresponds to the abutting wall portion, and the large diameter portion 3c has the ring-shaped member 4 made of an elastic member. By disposing the ring-shaped member 3 made of metal
Can be elastically displaced. Further, it is advantageous in that the metal ring-shaped member and the elastic member can be integrally attached.

FIG. 4 shows a third embodiment. In this example, the positional relationship between the abutting wall portion provided on the main body and the elastic body is the same as that of the second embodiment, but with the convex portion 5f provided on the front inner surface of the concave and convex fitting cap 5 and the convex portion 10 provided on the center shaft. None, by contacting the front end surface 5g of the convex portion 5f with the rear side wall 3d of the metal ring-shaped member 3, the impact for overcoming the convex portion 10 and the impact on the abutting wall portion are made simultaneously. .

Various other methods can be used. The front of the metal ring-shaped member attached to the main body is shown as the back of the abutting wall,
The elastic body may be located at the rear side, and the elastic body may be arranged at the back portion of the abutting wall portion provided on the cap. Further, although the side wall of the metal ring-shaped member is shown as the abutting wall portion, even if a sheet-shaped material made of a hard member is bonded to the rear end of the ring-shaped member made of an elastic member at a plurality of locations, An elastic member may be bonded to a plurality of locations on the front end of the metal ring-shaped member. In the first embodiment, the cloth body is the second embodiment and the third embodiment.
In the embodiment, since the metal ring-shaped member covers the ring-shaped member made of the elastic member, the ring-shaped member made of the elastic member is hidden in appearance, and the decorative effect is excellent.

(Effect of the Invention) By thus making the abutting wall portion hard, it is possible to obtain a fitting feeling that the cap is securely fitted, and at the same time, an elastic body is arranged on the back portion of the abutting wall portion. As a result, even if the fitting force is large so that the fitting is sufficient, the impact applied to the abutting wall portion can be absorbed, so that no damage or deformation occurs.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a main part showing a first embodiment of the present invention, and FIG.
The drawing is an enlarged view of the main part of FIG. 1, and FIGS. 3 and 4 are views corresponding to FIG. 2 showing another embodiment. 1 ... Shaft cylinder, 10 ... Convex portion, 2 ... Ink tank, 3 ...
Metal ring-shaped member, 3a ... step, 3d ... side wall, 4 ...
... Ring-shaped member made of elastic material, 5 ... Cap, 5e
…… Rear end, 5f …… Convex part, 5g …… Sidewall.

Claims (1)

(57) [Scope of utility model registration request] 1. A cap mounting structure in which a cap and a main body are fitted in a concavo-convex shape, hard abutting wall portions are provided on both, and the mounting position is regulated by abutting on these abutting wall portions. In the cap mounting structure, an elastic body that allows elastic displacement of the abutting wall portion is arranged on the back portion of the abutting wall portion on at least one side of the cap and the main body.