JPH0621876Y2 - Container with cap - Google Patents

Description

TECHNICAL FIELD The present invention relates to a container with a cap, and more specifically, it is possible to sense the completion of tightening when a cap is screwed into the mouth of a tube container by the feel of the hand. Regarding a container with a cap.

2. Description of the Related Art Conventionally, in the case of a cap screw type tube whose cross-sectional shape of the tube container is not a perfect circle but a rectangle or an ellipse, the tightening of the cap to the mouth is completed according to the body of the tube container. The position has to be determined. In the case of the capped container having the above-described shape, when the cap is screwed into the mouth, the tightening completion position is unclear. Therefore, a container with a cap that senses resistance by fitting is formed by forming a coupling protrusion on the shoulder of the tube container and attaching a coupling piece to the cap, and as a means to notify the operator of the completion when the cap is tightened. It came to be proposed. As such a conventional container with a cap, there is a container as shown in FIGS. 5 and 6.

In FIG. 5, 50 is a tube container, and the tube container 5
An engagement protrusion 52 is formed on the shoulder 51 of 0. Then, as shown in FIG. 6, a locking piece 54 that engages with the engaging projection 52 is provided in the cap 56. Fifth
As shown in the drawing, the locking pieces 54 are provided corresponding to each other so as to engage with the engagement protrusions 52. Furthermore, the sixth
As shown in the figure, a cutout portion 54a is formed in the lower end of the locking piece 54, and the cutout portion 54a and the engagement projection 52 are fitted together when the tightening of the cap 56 is completed. The resistance to act is transmitted to the operator's hand, and this feeling is used to detect the completion of tightening of the cap 6.

However, such a conventional tube container has the following drawbacks. That is, the thickness of the locking piece 54 provided in the cap 56 of the conventional tube container is thin, and as shown in FIG.
When the fastening is completed, the inclined portion of the cutout portion 54a of the locking piece 54 abuts the engaging projection 52 at a substantially right angle, and the engaging projection 52 is fitted over the engaging projection 52. For this reason, the resistance at the time of fitting is very large, and the cap 56 is repeatedly used to repeat the opening 5
In the case of screwing with 3, the notch 54a of the engaging piece 54 and the engaging projection 52 are worn by friction, and there is a drawback that the corners are gradually rounded. Especially, when the thickness of the engaging protrusions 52 is thin, the engaging protrusions 52 are significantly worn. As described above, when the corners are rounded, there is a drawback that the fitting resistance at the time of tightening is eliminated and the operator cannot sense the completion of tightening of the cap.

The present invention has been made in view of such conventional problems, and is configured so that the fitting portion does not wear with a small resistance when the cap is completely tightened to the mouth portion, and further, it is repeatedly used. Even if it is done, it is an object of the present invention to provide a container with a cap that allows an operator to always sense a clear and constant resistance.

Means for Solving the Problem In order to solve this problem, the present invention has a male screw 3a formed on the outer periphery of the mouth portion 3 of the tube container 1 and also outwardly in the radial direction on the shoulder portion 2 of the tube container 1. A fitting cylinder 5 in which an engaging projection 4 having a descending inclined surface 4a is formed and a female screw 6a screwed to the male screw 3a of the mouth portion 3 is screwed is formed in a cap 5 screwed to the mouth portion 3. It hangs down and this fitting cylinder 6
An engaging piece 7 having a contact surface 7a at its lower end, which slides in close contact with the inclined surface 4a of the engaging protrusion 4 at a constant width and inclination angle when the cap 5 is screwed, The engaging piece 7 is attached integrally so as to project outward in the direction.
A notch 6b that engages with the engagement protrusion 4 is formed on the lower edge of the fitting cylinder 6 adjacent to the above. Operation The operation of the present invention having the above configuration will be described. The cap 5 is fastened and fixed to the mouth portion 3 of the tube container 1 by the operator manually rotating and screwing. Then, when the tightening of the cap 5 is almost completed, the contact surface 7a of the engagement piece 7 closely slides on the inclined surface 4a of the engagement protrusion 4 as shown in FIG. Since the frictional resistance at the time of sliding is transmitted to the hand through the cap 5, the operator can detect the completion of tightening of the cap 5. Further, as shown in FIG. 3, the notch 6b cut in the lower edge of the fitting cylinder 6 engages with the engaging projection 4 at the portion where the contact surface 7a has passed over the inclined surface 4a. This engaging projection 4
The engagement of the cap 5 prevents the cap 5 from rotating. Then, the cap 5 is fixed to the outer periphery of the mouth portion 3.

As shown in FIG. 4, the contact surface 7a of the engagement piece 7 and the contact surface 4a of the engagement protrusion 4 are in close contact with each other and have a large sliding width, so that it is possible to prevent one of them from being worn. Further, the contact surface 7a and the inclined surface 4a are in close contact with each other with a constant inclination angle.
Since it slides, the force with which the contact surface 7a presses the inclined surface 4a is relaxed. Therefore, even if the cap 5 is repeatedly screwed into the mouth portion 3, the contact surface 7a of the engagement piece 7 and the contact surface 4a of the engagement projection 4 can be prevented from being rounded due to wear. it can.

Embodiment Next, the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a tube container, and the tube container 1 is formed by blow molding or the like by integrally molding a mouth portion, a shoulder portion, and a body portion. A male screw 3a is threaded on the outer periphery of the mouth portion 3 of the tube container 1. Further, on the shoulder portion 2 of the tube container 1, a certain inclination angle (about 30 in the embodiment) is used.
The engaging projection 4 having the inclined surface 4 a exhibiting a degree) is integrally formed with the tube container 1. Further, in the cap 5 that is screwed into the mouth portion 3, a fitting cylinder 6 in which a female screw 6a that is screwed into the male screw 3a of the mouth portion 3 is threaded is hung.
Further, the outer peripheral surface of the fitting cylinder 6 is brought into close contact with the inclined surface 4a of the engaging projection 4 at a constant width and inclination angle (about 30 degrees in the embodiment) when the cap 5 is screwed, and slides. A joint piece 7 is attached (in the embodiment, two pieces are attached to the outer periphery of the fitting cylinder 6 so as to face each other). The contact surface 7a of the engagement piece 7 has the same inclination angle as that of the inclined surface 4a so as to be in wide contact with each other.

The feature of the present invention is to increase the thickness of the engaging piece 7 and to lengthen the portion of the engaging projection 4 that closely contacts and slides with the inclined surface 4a to prevent the engaging piece 7 from being worn and to reduce the contact surface. By inclining the 7a and the inclined surface 4a by a constant equal inclination angle, the contact resistance between the contact surface 7a and the inclined surface 4a against each other at the time of sliding can be eased to reduce the frictional resistance. is there. This is clearly different from the conventional structure in which the engagement piece of the cap, which is formed thin, is fitted at a right angle to the engagement projection of the shoulder portion of the tube container. That is, the structure according to the present invention reduces the resistance for the operator to sense the completion of tightening when tightening the cap to the mouth. Further, a cutout portion 6b that engages with the engagement protrusion 4 is formed on the lower edge of the fitting cylinder 6 adjacent to the engagement piece 7. The notch 6b is cut to fit the outer periphery of the engaging protrusion 4. That is, when the contact surface 7a of the engagement piece 7 comes into close contact with the inclined surface 4a of the engagement protrusion 4 and the sliding is completed, the notch portion 6b engages the engagement protrusion 4 and the cap 5 Can be prevented from rotating around the outer periphery of the mouth 3. As a result, the cap 5 is fixed to the mouth 3.

Effect As described above, according to this invention, when the cap is tightened and fixed to the mouth of the tube container, the engagement between the engagement piece of the cap and the engagement protrusion of the tube container is maintained clear. However, since the contact pressure is relaxed and the completion of tightening is sensed by the operator, the engagement piece and the engagement projection do not wear even if the cap is repeatedly screwed into the mouth. Then, the operator can always detect a clear and small resistance. Particularly, the container with a cap according to the present invention is excellent in that the engaging portion of the cap and the engaging protrusion of the tube container are not worn even when the tube container is made of a soft material.

[Brief description of drawings]

1 to 4 are drawings showing an embodiment of a container with a cap according to the present invention. FIG. 1 (a) is a bottom view of the cap, and FIG. 1 (b) is a front view of a tube container. Fig. 1, Fig. 1 (c) is a right side view of Fig. 1 (b), Fig. 2 is an enlarged sectional view taken along the line AA of Fig. 1 (a), and Fig. 3 shows that the engaging piece of the cap is a tube. Drawings showing a state in which they are brought into close contact with the engaging projections of the container and sliding, FIG. 4 is a right side view of FIG. 3, and FIGS. 5 and 6 are drawings showing one embodiment of a conventional container with a cap. FIG. 5 is a perspective view of the cap and the tube container, and FIG. 6 is a drawing showing a state in which the engagement piece fits into the engagement protrusion. 1 ... Tube container, 2 ... Shoulder part, 3 ... Mouth part, 3a ... Male screw, 4 ... Engaging protrusion, 4a ... Inclined surface, 5 ... Cap, 6 ... Fitting cylinder, 6a ... Female screw , 6b ... Notch 7 ... Engaging piece

Claims (1)

[Scope of utility model registration request] 1. A male screw is engraved on the outer periphery of the mouth of a tube container, and a locking projection having an inclined surface that descends radially outward is formed on the shoulder of the tube container, and the mouth is formed on the mouth. A fitting cylinder in which a female screw to be engaged with the male screw of the mouth portion is engraved is hung in a cap to be screwed, and the engaging protrusion is further provided on an outer peripheral side portion of the fitting cylinder when the cap is screwed. An engaging piece having a contact surface at its lower end, which slides in close contact with the inclined surface at a constant width and inclination angle, is integrally attached so as to project outward in the radial direction, and the engaging piece is attached to the engaging piece. A container with a cap, wherein a cutout portion that engages with the engagement protrusion is formed on a lower edge of an adjacent fitting cylinder.