JPH0248367Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Industrial application field) This invention is mainly used for a lid return prevention device for cosmetic containers, etc. that store liquid cosmetics such as lotion, hair conditioner, hair tonic, shampoo, etc. It is related to.

(Prior art) This type of lid return prevention device has traditionally been provided with an incline on the outer peripheral surface of the base of the neck of the container body in order to prevent the lid from loosening and leaking liquid cosmetics etc. when the container is tipped over. A locking protrusion consisting of a vertical portion and a vertical portion is provided to protrude in the radial direction, while a stop piece and a convex arch-shaped locking piece are provided on the inner peripheral surface of the recessed portion of the lid to protrude toward the center. was provided (for example, Utility Model No. 55-905448)
Publication No.).

(Problem to be solved by the invention) However, the locking protrusion of the container body protrudes radially from the outer peripheral surface of the base of the neck, while the stopper piece and the locking piece of the lid are arranged on the inner peripheral surface of the recess. When the lid is closed, the tip of the locking piece of the lid is pressed against the inclined side of the locking protrusion on the container body due to the elastic force of the locking piece toward the center. As a result, the locking piece is likely to come off the locking protrusion, causing the lid to loosen, and there is a risk that liquid cosmetics, etc. may leak out, as well as the repellency and repellent effect of the locking means of the lid being unfavorable. Ta.

Therefore, this invention was devised to solve the above-mentioned problems.It prevents the lid from coming loose and reliably prevents the leakage of liquid cosmetics, etc., and also prevents the lid from loosening. An object of the present invention is to provide a device for preventing the return of a lid of a cosmetic container, etc., in which the repelling effect of the locking piece is extremely smooth, and the repelling effect of the locking piece is also extremely good.

[Structure of the invention] (Means for solving the problem) In order to solve the conventional problem, this invention
In a cosmetic container, etc., in which a male threaded opening protruding from the center of the upper plate of the container body is screwed into a female threaded recess provided at the center of the lower plate, which is slightly recessed from the peripheral edge of the lid, the container body A stop protrusion is provided on the upper surface of the upper plate near the mouth part, and a stop piece for contacting the stop protrusion is provided near the recess of the lower plate of the lid, and a stop protrusion on the upper surface of the upper plate of the container body is provided,
At a position facing this stop protrusion and the mouth area, there is a sloping part that gradually becomes higher as it goes from one end to the other end, and a vertical part that becomes suddenly lower from the top of this sloping part. A stop protrusion is provided so that the vertical part faces the same direction in the circumferential direction, and a stop protrusion is provided in the vicinity of the stop piece on the lower surface of the lower plate of the lid, and at a position facing the stop piece with the recess as a boundary. A locking piece having an arc-shaped cross section in the direction and a groove shape in the transverse direction is elastically provided so that the distal end side is open and the locking pieces are oriented in the same direction in the circumferential direction. In the lower plate opposite to the portion other than the proximal end of the locking piece, a hole to prevent the locking piece from coming into contact with the locking piece, which is at least larger than the plane size of the locking piece, is bored. At the final stage of screwing into the lid recess, each locking piece of the lid climbs over the locking protrusion of the container body, and at the same time the locking piece of the lid contacts the locking protrusion of the container body, the vertical locking of each locking protrusion The technical means is that the base end side of the locking piece is releasably locked on the side of the locking piece.

(Function) This invention uses the technical means mentioned above to
At the final stage when the concave part of the lid is screwed into the neck of the container body using a screwing means of male and female screws, and the peripheral edge of the lower plate comes into contact with the upper plate, the tip of the locking piece of the lid first It comes into contact with the middle of the sloped part of the locking protrusion of the container body. Next, the locking piece moves to the top of the slope of the locking protrusion while resisting the elastic force, and in this case, the upper side of the locking piece escapes into the relief hole of the lower plate, and the locking piece moves to the longitudinal center of the locking piece. portion is brought into contact with the top of the sloped portion of the locking protrusion. Furthermore, when the locking piece moves, the locking piece is pushed down to the vertical part of the locking protrusion by the elastic force, the locking piece rides over the locking protrusion, and the lid is stopped on the locking protrusion of the container body. At the same time as the pieces abut, the proximal end side of the locking piece is locked to the vertical side of the locking protrusion.

(Example) Hereinafter, an example of this invention will be described based on the drawings.

As shown in FIG.
A container main body A having a protruding cylindrical neck part 3, a male thread 4 provided on the outer peripheral surface of the neck part 3, and a stop protrusion 5 provided near the neck part 3 on the upper surface of the upper plate 1. A recess 8 for fitting the neck part 3 is provided in the center of the lower plate 7, which is slightly recessed from the peripheral edge 6, and a female screw 9 for screwing the male screw 4 is provided on the inner peripheral surface of this recess 8. A plastic cosmetic container is formed with a lid B provided with a stop piece 10 for abutting the stop protrusion 5 near the recess 8.

In cosmetic containers etc. formed in this way,
As shown enlarged in FIGS. 2 to 4, near the stop protrusion 5 on the top surface of the upper plate 1 of the container body A, and at a position facing the stop protrusion 5 with the neck part 3 as a boundary, A locking protrusion 1 having an inclined part 11 that gradually becomes higher as it goes from one end to the other end, and a vertical part 12 that becomes suddenly lower from the top of this inclined part 11.
3 are provided so that the vertical portions 12 are oriented in the same direction in the circumferential direction. On the other hand, the vicinity of the stop piece 10 on the lower surface (the upper surface in FIG. 1) of the lower plate 7 of the lid B,
A locking piece 14 having an arcuate cross section in the longitudinal direction and a groove shape in the transverse direction is placed at a position facing this stopper piece 10 with the recess 8 as a boundary, and the distal end side is open and the locking piece 14 has a circular arc shape in the cross section in the longitudinal direction and a groove shape in the transverse direction. The lower plate 7 facing the portion of the locking piece 14 excluding the proximal end has a locking member at least larger than the plane size of the locking piece 14. Relief holes 15 for preventing the stopper pieces 14 from coming into contact with each other are bored respectively. Then, the container body A
At the final stage of screwing the lid B recess 8 into the neck part 3, each locking piece 14 of the lid B climbs over the locking protrusion 13 of the container body A, and the lid B is stopped by the stop projection 5 of the container body A. At the same time when the pieces 10 abut, each locking protrusion 1
The base end side of the locking piece 14 is removably locked to the vertical portion 12 side of the locking piece 3 .

[Effects of the invention] Since this invention is configured as described above, the recess 8 of the lid B is screwed into the neck part 3 of the container body A using the screwing means of the male screw 4 and the female screw 9, and the upper plate 1 is assembled.
At the final stage when the peripheral edge 6 of the lower plate 7 comes into contact with the bottom plate 7, first, as shown in FIG. come into contact with Next, as shown in FIG.
The inclined portion 11 of the locking protrusion 13 resists the elastic force.
In this case, the upper side of the locking piece 14 escapes into the hole 15 of the lower plate 7, and the longitudinal center portion of the locking piece 14 comes into contact with the top of the slope 11 of the locking protrusion 13. . Furthermore, as the locking piece 14 moves as shown in FIG.
4 climbs over the locking protrusion 13, and the stopper piece 10 of the lid B comes into contact with the stopper protrusion 5 of the container body A, and at the same time, the proximal end side of the locking piece 14 is locked on the vertical part 12 side of the locking protrusion 13. will be done.

Therefore, in such a closed state, the downward elastic force of the locking piece 14 causes the locking piece 14 of the lid B to close.
The base end side is the vertical part 1 of the locking protrusion 13 of the container body A.
Since it is constantly pressed against the second side, the locking piece 14 will not come off from the locking protrusion 13 even with some impact.
By preventing the lid B from loosening, leakage of liquid cosmetics, etc. can be reliably prevented.

Moreover, in the vicinity of the stop piece 10 on the lower surface of the lower plate 7 of the lid B, and at the position facing this stop piece 10 with the recess 8 as a boundary, the cross section in the longitudinal direction is arcuate, and the cross section in the transverse direction is in the form of an arc. A groove-shaped locking piece 14 is elastically provided so that the distal end side is open and extends in the same direction in the circumferential direction. Together with the fact that the lower plate 7 is provided with holes 15 that are at least larger than the planar size of the locking pieces 14, the upper side of the locking pieces 14 resists the elastic force when the locking pieces 14 are engaged and disengaged. This prevents the locking piece 14 from coming into contact with the lower plate 7, and the elastic action of the locking piece 14 of the lid B is extremely smooth. Therefore, the repelling effect of the locking piece 14 is also very good.

In addition, by forming each of the locking pieces 14 of the lid B so that the cross section in the longitudinal direction is arc-shaped and the cross-section in the short direction is groove-shaped, the locking pieces 14 can be made into a simple shape as in the conventional case. Both side edges of the locking piece 14 are firmly reinforced, and the strength of the locking piece 14 as a whole is much stronger than that formed in a convex arch shape, and the durability is excellent.

As explained above, the lid return prevention device of this invention can prevent the lid from loosening and reliably prevent leakage of liquid cosmetics, etc., and the resiliency of the locking piece of the lid is extremely smooth. Moreover, the repellency of the locking piece is very good, and the structure is simple and economical, among other effects.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention. Fig. 1 is a partially omitted exploded perspective view of a container equipped with a lid return prevention device of this invention, and Figs. 2 to 4 show a lid return prevention device of this invention. An enlarged longitudinal sectional view showing the prevention device, the second
The figure shows a state in which the tip of the locking piece of the lid is in contact with the middle of the slope of the locking protrusion on the side container body, and Figure 3 shows the state in which the longitudinal center of the locking piece has moved to the top of the slope of the locking protrusion. FIG. 4 shows a state in which the base end side of the locking piece is locked to the vertical side of the locking protrusion. A...Container body, B...Lid, 1...Top plate, 2...
... Inner stopper, 3 ... Neck part, 4 ... Male screw, 5 ... Stop projection, 6 ... Peripheral edge, 7 ... Lower plate, 8 ... Recess, 9 ... Female thread, 10 ... Stop piece, 11... Inclined part, 12... Vertical part, 13... Locking protrusion, 14
... Locking piece, 15 ... Escape hole.

Claims (1)

[Scope of utility model registration request] In a cosmetic container, etc., in which a male threaded opening protruding from the center of the upper plate of the container body is screwed into a female threaded recess provided at the center of the lower plate, which is slightly recessed from the peripheral edge of the lid, the container body A stop protrusion is provided on the upper surface of the upper plate near the mouth part, and a stop piece for contacting the stop protrusion is provided near the recess of the lower plate of the lid, and a stop protrusion on the upper surface of the upper plate of the container body is provided, At a position facing this stop protrusion and the mouth area, there is a sloping part that gradually becomes higher as it goes from one end to the other end, and a vertical part that becomes suddenly lower from the top of this sloping part. A stop protrusion is provided so that the vertical part faces the same direction in the circumferential direction, and a stop protrusion is provided in the vicinity of the stop piece on the lower surface of the lower plate of the lid, and at a position facing the stop piece with the recess as a boundary. A locking piece having an arc-shaped cross section in the direction and a groove shape in the transverse direction is elastically provided so that the distal end side is open and the locking pieces are oriented in the same direction in the circumferential direction. In the lower plate opposite to the portion other than the proximal end of the locking piece, a hole to prevent the locking piece from coming into contact with the locking piece, which is at least larger than the plane size of the locking piece, is bored. At the final stage of screwing into the lid recess, each locking piece of the lid climbs over the locking protrusion of the container body, and at the same time the stopper piece of the lid contacts the locking protrusion of the container body, the vertical part of each locking protrusion A lid return prevention device for a cosmetic container, etc., characterized in that a proximal end side of a locking piece is removably locked on the side.