JPH0738158Y2 - Alignment cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an alignment cap assembled to a mouth tube of a bottle.

[Conventional technology]

In particular, the appearance of the bottle for accommodating cosmetics and the like is extremely important, and a bottle having an excellent appearance is required. And as one of the forms, the whole bottle body may be selected as a straight elliptical cylinder shape or a straight square cylinder shape instead of a simple straight cylinder shape. Furthermore, the bottle itself is a special cylinder shape. Not only that, but the cap that is screwed into the bottle mouth barrel is also adapted to the shape of the bottle body.

However, in this case, when the cap is closed, it is necessary to regulate the position of the cap rotation limit so that the surface of the cap and the surface of the bottle are flush with each other. I can't. This does not necessarily mean that the bottle has a special cylindrical shape, and even if the entire combination of the bottle and the cap is a simple linear cylindrical shape, a continuous pattern is applied from the bottle to the cap. In such a case, accurate alignment between the two is required.

As a conventional positioning cap of this type, the actual cap 51-5
No. 354, "Cap Positioning Mechanism", Jikkou Sho 62-17
The "positioning container" of Japanese Patent No. 396, the "positioning cap" of Japanese Utility Model Laid-Open No. 62-152942, etc. have been proposed.

[Problems to be solved by the device]

However, the "cap alignment mechanism" described above
Has a structure in which an elastic member for locking is interposed between the bottle mouthpiece and the cap, and because of the large number of parts, not only is it troublesome to assemble, but it is easily broken and the molding cost increases. There's a problem.

Further, the above-mentioned "positioning container" or "positioning cap" is, for example, a bottle body provided with a locking projection on the lower end of the mouth tube, and a bulging piece for holding that rides over the locking projection at the lower end. And a cap provided with a locking projection for a stopper that can be locked to the locking projection, and the bulging piece is an elastically deformable plate formed by providing a pair of slits. The plate is elastically deformed by the rotation of the cap, the bulging piece rides over the locking projection, and the locking projection is locked by the locking projection to set the rotation limit. The alignment effect can be obtained.

However, in the above-mentioned configuration, when the elastic force of the plate piece is strong, the locking force of the bulging piece against the locking protrusion becomes strong, which causes the natural nature of the cap screw-assembled to the bottle body. Although it has the effect of surely preventing the occurrence of loosening, it requires a relatively large operating force for the bulging piece to get over the locking projection, so that the cap must be attached to the bottle up to the alignment position. It required a great deal of force, and the operation could not be smooth. On the other hand, if the elasticity of the plate piece is weak, the cap can be smoothly assembled to the position where it is aligned with the bottle body, but the cap loosely attached to the bottle body will prevent natural loosening. There was a problem that was deteriorated.

The present invention was devised to solve the above-mentioned problems in the prior art, and reliably achieves the alignment of the cap screw-assembled to the mouth tube of the bottle body at the screwing limit, and The purpose of the present invention is to enable a locked state to be easily maintained and to maintain this locked state.

[Means for Solving the Problems]

Means of the present invention for achieving the above object is a bottle body having a mouthpiece having a screw thread on the outer peripheral surface and a locking projection provided on the lower end of the outer peripheral surface. Provide a bulge for holding over the locking projection of the bottle at the lower end that is closely opposed from the outside, and hold the same locking projection at the same lower end. A stopper protrusion for stopping is provided, and a pair of slits vertically penetrating the lower end of the screwing cylinder, which is located below the screwing cylinder and closely opposes the stopper protrusion of the bottle from the outside, is formed. A plate piece that can be elastically deformed is formed by providing a space along the direction substantially parallel to each other. A bulging piece is provided in the substantially central portion of the plate piece. Form the plate piece between the locking projection and the bulge thicker than the part between the other end and the bulge. It is in.

[Action]

When the cap assembled to the bottle is rotated in the tightening direction, the bulging piece abuts the locking projection immediately before the alignment position, but by increasing the tightening force on the cap, the bulging piece moves from the locking projection. The plate piece is elastically deformed by the reaction force acting on the plate piece through backward movement of the central portion, that is, the portion where the bulging piece is located (displacement in the rearward direction). Go over and get to the alignment position.

When the cap is in the alignment position, the bulging piece comes into contact with the locking projection from the opposite side.Therefore, the abutment of the bulging piece with the locking projection causes the cap to screw against the bottle body. The occurrence of natural loosening during assembly is prevented.

When a turning force is applied to the cap attached to the bottle body in a direction to release the screw, the plate piece is acted on by the reaction force that acts on the plate piece from the locking projection through the bulging piece against the turning force. Is elastically deformed in the same manner as described above, and the elastic deformation causes the bulging piece to pass over the locking projection, so that the rotation blocking effect on the cap due to the contact of the bulging piece with the locking projection is eliminated, and the cap is screwed. It can be rotated in the unwinding direction.

As described above, when the bulging piece gets over the locking projection, the plate piece is elastically deformed. However, the plate piece has a thicker portion from the bulging piece to the locking projection side, and therefore the elastic piece is elastic. The reaction force from the plate piece against the external force trying to deform is generated mainly by this thick portion, the bulging piece has a thickness in the circumferential direction, the rotation of the cap in the cap tightening direction At this time, the locking projection contacts the side of the bulging piece opposite to the locking projection, and when the cap is rotated in the cap unwinding direction, the locking projection contacts the locking projection of the bulging piece. For some reason, the force acting on the plate piece from the locking projection is larger in the tightening direction because the distance from the base end of the thick part of the plate piece is larger by the thickness of the bulging piece. The action will be stronger.

That is, even if the same rotational operation force is applied to the cap, the reaction force acting on the plate piece from the locking protrusion is larger in the tightening direction than in the unwinding direction, and therefore the bulging piece is In order to get over the locking projection, it can be achieved with a weaker operating force in the tightening direction than in the cap unwinding direction.

〔Example〕

 Examples will be described with reference to the drawings.

The bottle body 1 has a substantially elliptic cylindrical shape in cross section for accommodating liquid cosmetics, etc., and a straight cylindrical mouth tube 3 is erected on the upper end via a shoulder portion 2 and a thread 4 is provided on the outer peripheral surface. The locking projection 5 is provided in a vertical strip shape at the lower end of the outer peripheral surface of the mouth tube 3.

Next, the cap 6 has a structure in which the assembly body 8 is fitted into the lower end opening of the dome-shaped outer shell pair 7 whose lower portion has a shape corresponding to the substantially elliptical cross section of the bottle body 1 described above.

The assembling body 8 is provided with a fitting cylinder 10 which is fitted into the outer shell body 7 at the peripheral edge of a bottom plate 9 which closes the lower end opening of the outer shell body 7, and has the above-mentioned mouth on the inner peripheral surface at the center portion. A screw cylinder 12 around which a screw thread 11 that is screwed with the cylinder 3 is provided upright, and the screw cylinder 12 and the bottom plate 9 are provided.
The short cylinder wall 13 is erected between the short cylinder wall 13 and the screw cylinder 12, and the step portion 14 is formed between the short cylinder wall 13 and the screw cylinder 12. Located below the coupling cylinder 12, the locking projection 5
Has a lower end portion closely facing from the outside.

Further, at the alignment position, the stepped portion 14 is continuously connected to the upper end edge of the short cylinder wall 13 portion that is closely opposed to the locking projection 5 from the outside, and the first through hole is vertically opened along the short cylinder wall 13 portion. One slit 15 is formed, and the bottom plate 9 is continuously connected to the lower end edge of the same short cylinder wall 13 portion along the short cylinder wall 13 portion, that is, vertically penetrates substantially parallel to the first slit 15. Form the second slit 16 opened, both slits 15,
A portion of the short cylinder wall 13 between 16 is formed into a plate piece 17 capable of elastic deformation.

Then, the cap 6 is provided on the inner surface of the plate piece 17 substantially at the center thereof.
A bulging piece 18 for holding is provided to get over the locking projection 5 of the bottle 1 at the time of rotation of the bottle, and a locking projection for a stopper that can be locked to the locking projection 5 at one end of the plate piece 17. 19
Is provided. The interval between the bulging piece 18 and the locking projection piece 19 is almost equal to the wall thickness of the locking projection 5, and therefore the cap 6 is rotated in the tightening direction so that the bulging piece 18 gets over the locking projection 5.
When the locking projection 19 is locked to the locking projection 5, the bulging piece 18
Thus, the locking projections 19 are sandwiched by the locking projections 19 and the cap 6 is maintained in the rotation limit state where the cap 6 is tightened.

Furthermore, the plate piece 17 portion between the above-mentioned bulging piece 18 and the locking projection piece 19 located at one end of the plate piece 17 is a thick portion 20, and the bulging piece 18 and the plate piece 17 are It is formed thicker than the other end. As a result, when the cap 6 is rotated to be tightened and the bulging piece 18 first comes into contact with the locking projection 5 of the bottle body 1, the abutment portion and the one end which is the base end of the plate piece 17 are separated. Since the distance L is large as shown in FIG. 3, the bulging piece 18 easily gets over the locking projection 5.

When the cap 6 is rotated in the opposite direction to open it,
The locking projection 5 of the bottle 1 comes into contact with the bulging piece 18 and tries to get over it, but the distance 1 between this abutting portion and the one end which is the base end of the plate piece 17 becomes the above-mentioned distance L. Since it is smaller than the above, the bulging piece 18 is hard to get over, and a force larger than the operating force in the tightening direction is required to get over. Therefore, it is possible to reliably prevent natural loosening of the cap 6 attached to the bottle 1 at the screwing alignment position, and to loosen the screwing of the cap 6 to the bottle 1 due to some impact from the outside. There is no saying.

[Effect of device]

Since the present invention is configured as described above, it has the following effects.

Since the cap is assembled to the bottle in the position where it is screwed into place, and the cap is securely held, the overall appearance of the container is improved and this good condition is maintained. can do.

Since the operating force required for the bulging piece to get over the locking projection may be weaker in the cap tightening direction than in the cap opening direction, it is easy to handle the cap and the impact generated when riding over it. The feeling of use improves the feeling of use, and more force is required for the bulging piece to pass over the locking protrusion in the opening direction compared to the opposite direction, so that the cap is loosened with the screw assembly to the bottle body. Therefore, the high cap loosening prevention effect can be exerted while maintaining the ease of the opening / closing operation.

The configuration is such that the operating force required for the bulging piece to get over the locking projection is weaker when the cap is rotated in the tightening direction than when it is rotated in the opening direction. Since the bulging piece has a width along the circumferential direction and only one side of the plate piece is made thick, the overall structure is simple and easy to implement.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of an alignment cap according to the present invention. FIG. 2 is a bottom view of the cap in the embodiment shown in FIG. FIG. 3 is an enlarged sectional view of an essential part showing a locked state in the embodiment shown in FIG. FIG. 4 is an overall perspective view of the embodiment shown in FIG. 1; Bottle body, 3; Mouth tube, 4; Thread, 5; Locking protrusion, 6; Cap, 1
5, 16; slit, 17; plate piece, 18; bulge piece, 19; locking projection piece, 2
0; thick part.

Claims (1)

[Scope of utility model registration request] 1. A mouth cylinder (3) having a thread (4) provided around the outer peripheral surface thereof.
Of the bottle body (1) provided with a locking projection (5) at the lower end of the outer peripheral surface of
A screwing assembly (12) is attached to the mouth tube (3) for screwing, and an expansion for holding that passes over the locking projection (5) is provided at a lower end portion that closely faces the locking projection (5) from the outside. A positioning cap provided with a projecting piece (18) and a stopper locking projection (19) for locking with the locking projection (5), which is located below the screw cylinder (12). A pair of slits (15) and (16) vertically penetrating and opening are provided substantially parallel to each other at the lower end portion which is located close to the locking projection (5) from outside and is closely parallel to the locking projection (5). To form an elastically deformable plate piece (17), the bulging piece (18) is provided substantially at the center of the plate piece (17), and the plate piece (17) is located at one end of the plate piece (17). The plate piece (17) portion between the locking projection (19) and the bulging piece (18) is formed thicker than the portion between the other end and the bulging piece (18). Success Alignment cap.