JP3802113B2 - Hinge cap - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an integrally-molded hinge cap that has a recloseability when it is attached to a container containing contents such as liquid and viscous body and the contents are dispensed.
[0002]
[Prior art]
Fill the container body such as a glass bottle or plastic bottle with contents such as liquid, mucus, and granules, and attach a spout to the opening of the container so that the user can dispense it. Various forms have been proposed and put into practical use. The two-part pouring taps are manufactured and assembled to each other, and then screwed or fitted into the container. However, from the viewpoint of cost and streamlining of the process, recently, an integrally-molded pouring tap is used. Has come to be. The structural elements of these integrally molded pouring taps are a lid member, a crown member, and a number member. That is, a lid member suitable for mutual engagement with the opening neck of the container body, a crown member for covering the spout when not in use, and the lid member and the crown member are connected in the dispensing step, A numbering member (hereinafter referred to as a hinge or hinge) designed to facilitate and ensure movement of the member onto the lid member, and is integrally molded by injection molding using a plastic material. Is.
[0003]
Further, the structure of the hinge portion is generally called a three-point hinge for reliably and largely opening the crown member at the moment when the fixing device is removed for releasing the contents from the lid member. There are many things. However, this three-point hinge type cap protrudes from the outer wall of the cap, so when filling the container body with the contents and attaching the pouring stopper with a capper, this may cause capping failure. In addition, it has been a factor that reduces the capping speed.
[0004]
[Problems to be solved by the invention]
The object of the present invention is to simplify the structure of the hinge, open the crown member with a single touch to expose the spout, and to reclose it, and to make the protrusion from the side wall of the cap as small as possible so that it can be capped. It is to provide a hinge cap with improved performance.
[0005]
[Means for Solving the Problems]
The above problems can be solved by the following present invention. That is, the invention described in claim 1, its the spout (6) with a lid member which is suitable for interengaging the opening neck of the container (1), covered on the lid member (1) Note A crown member (2 ) that closes the outlet (6) and forms a final cap.The lid member (1) and the crown member (2) are respectively composed of a bottom wall portion (12, 22) and a skirt portion (11 , 21), and the lid member (1) and the crown member (2 ) are integrated by an integrally formed hinge (3) protruding from each skirt portion , and the lid member (1) and the crown member (1) the integrally molded hinge (3) and the opposite side position of the member (2), a lid member (1) and crown member (2) and for opening and closing freely fix, provided on the cover member (1) Fixing device main wall (44) , fixing device receiving projection (41) , fixing device receiving recess (42) , fixing release projection (43) , and crown member latching projection provided on the crown member (2) (51), knob (52) from become fixing device is provided, also, before The inner position in the vicinity of the integrally molded hinge of the lid member (1) and crown member (2) (3) is at least one perpendicular to the upper surface of the bottom wall portion of the cover member (1) (12) A standing leaf spring (4) is provided, and on the lower surface of the bottom wall portion (22) of the crown member (2) , the lid member (1) and the crown member (2) are connected to the integrally molded hinge (3) . When the plate spring (4) is bent and fitted with the fixing device, the tongue-shaped presser plate (5) having a large curvature at the front end portion that pushes and bends the plate spring (4) is perpendicular to the plate spring (4). When removing the crown member (2) fixed to the lid member (1) by the fixing device and opening the spout (6) of the lid member (1) , the lid member by pressing the unlocking projection (43) (1), by the repulsive force of the lid member (1) and crown member (2) and engaging with said plate has portions out spring (4) the crown member (2) has to be instantaneously released from the lid member (1) Consisting hinge cap, wherein the door.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The container B in the present invention is a glass bottle, a plastic bottle or the like, and the contents thereof are used by dispensing, for example, mainly liquid or viscous material such as soy sauce, sauce, dressing, sesame, table It can also be used for powdered and granular materials such as salt and pepper.
When dispensing these contents, it is preferable that the spout is easily exposed, and the cap is easily covered after the dispensing, so that the spout can be closed.
The hinge cap of the present invention is fitted or engaged with the neck of the container to form the spout, and the structure forms a cap and a cap that can be fitted or engaged with the neck of the container. A crown member, and an integrally formed hinge that mutually engages the lid member and the crown member, wherein at least one leaf spring is provided on the top of the bottom wall portion of the lid member, and the bottom wall of the crown member A holding plate is provided at a position where the leaf spring 4 is pushed and bent when the cover member and the crown member are rotationally overlapped with the integrally molded body hinge as a rotation axis.
[0007]
The leaf spring 4 of the present invention is not necessarily provided at a predetermined position, but is preferably in the vicinity of the hinge portion and provided in a tongue-like shape on the bottom wall portion of the lid member. The thickness, width, etc. of this leaf spring are important factors for its effect, and are greatly influenced by the characteristics of the resin used in the hinge cap.
Further, the presser plate has a tongue-like shape with a large curvature so as to come into contact with and pressurize the plate spring at a substantially right angle and press and bend the plate spring smoothly. Is good.
[0008]
Examples of the resin used for the hinge cap of the present invention include low density polyethylene, medium density polyethylene, high density polyethylene, polypropylene, polyamide, polycarbonate, vinyl chloride, and polyester.
[0009]
As a characteristic of the leaf spring in the present invention, it is necessary to select a material having particularly elastic physical properties. The most common and economical manufacturing method of the hinge cap of the present invention is a method in which the leaf spring, the lid member, and the crown member are integrally formed of the same material. Using another technology, such as a two-color molding method, form only the leaf spring part with another material, insert-mold the separately shaped leaf spring, or use an adhesive or other It is also possible to join the molded lid member by this method. If the two-color molding method or the method of joining the separate molded products, the main part of the lid member and the crown member excluding the leaf spring has excellent barrier properties such as polyacrylonitrile and polystyrene resin. Resins and materials with good molding accuracy can be selected from a wide range.
[0010]
In the above description, the plate spring is provided on the bottom wall portion of the lid member, and the holding plate is provided on the inner side of the crown member. On the contrary, the plate spring is used as the crown member and the holding plate is used as the lid member. May be provided.
[0011]
In the fixing device of the present invention, when the container is not used, the crown member is superposed on the lid member, and the lid member and the crown member are engaged so that a force to open the crown member by the bending of the leaf spring is contained. It is desirable to have a function that can be released by a one-touch action when dispensing again.
Further details will be described. When the lid member and the crown member are reclosed after the contents have been put out, it is necessary to fix the leaf spring in a state of being pushed and bent, and the purpose of providing this fixing device is an inadvertent container To prevent liquid from spilling when falling, preventing dust from entering the air when not in use, preventing the contents from escaping, and preventing the infant from opening the crown member inadvertently or by mischief. Is. And in order to achieve this objective, the fixing device of this invention is provided in the position which opposes the hinge part of both a cover member and a crown member, and has a function which fixes the said crown member and a cover member. The fixing device counteracts the elastic restoring force of the leaf spring, for example, the engagement of the latching projection of the crown member provided inside the skirt portion of the crown member and the projection provided outside the skirt portion of the lid member It works by doing.
[0012]
Again, the method of exposing the spout when dispensing is that the crown member and the lid member are hooked by pressing the fixing release protrusion on the fixing device main wall provided on the skirt portion of the lid member with a finger or the like. And the spout is exposed.
For reclosing after dispensing, the crown member is rotated around the hinge part to align with the lid member, and the crown member is pressed from above to fix the crown member latching projection and lid member. The protrusion can be engaged and fixed.
When releasing the engagement of the latching protrusion for fixing, the fixing release protrusion is pushed with a finger or the like. If the shape and the depth of occlusion are constant, this can be achieved by adjusting the molding thickness of the lower part of the fixing device main wall.
That is, when it is desired to be able to release the fixation even with a weak force, the fixed state can be easily released by the force of the finger or the like by reducing the molding thickness of the lower part of the main wall of the fixing device and increasing the flexibility. be able to.
[0013]
The sealing performance in the threaded engagement or fitting between the hinge cap of the present invention and the opening of the container B may be implemented by conventional techniques, and if necessary, a packing may be provided between the opening of the container and the lid member. Interpose and remove at first use. Alternatively, it is also possible to prevent leakage from between the container body B and the hinge cap C by sandwiching the donut packing.
Sealing of the spout provided on the bottom wall portion of the lid member can be achieved, for example, by providing a cap member that can be in close contact with the inner periphery of the spout on the crown member top, but is particularly limited. is not.
[0014]
【Example】
FIG. 1 is a perspective view showing an embodiment of a hinge cap according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view of a lid member and a crown member in an open state, and FIG. FIG. FIG. 5 is a partially enlarged view showing a state in which the lid member and the crown member are in the closed state and the leaf spring is pushed and bent by the holding plate.
For dressing, a hinge cap C designed to be screwed onto the neck of a glass bottle B having an internal capacity of 750 ml was integrally formed. Polypropylene resin (copolymer type) was used as the molding material.
The basic member constituting the hinge cap is composed of the lid member 1, the crown member 2, and the integrally formed hinge 3 that mutually engages the two members. Both the lid member 1 and the crown member 2 are composed of skirt portions 11 and 21 and bottom members 12 and 22, and the bottom wall portion 12 of the lid member 1 is provided with a spout 6 for dispensing the contents. is there. Further, the stopper member 7 is provided under the bottom wall portion 22 of the crown member 2 in order to close the spout 6 when the container is not used.
In the present embodiment, two leaf springs 4 are provided on the bottom wall portion 12 of the lid member 1. Further, under the bottom wall portion 22 of the crown member 2, the lid member 1 and the crown member 2 are respectively positioned at positions where the two leaf springs 4 are pushed and bent when they are rotationally overlapped with the integral hinge 3 as a rotation axis. A pressing plate 5 is provided at a position corresponding to the plate spring 4.
[0015]
Further, as a fixing device 40 for fixing the crown member 2 to the lid member 1 when not in use, both the lid member 1 and the crown member 2 are fixed to the skirt portions 11 and 21 respectively facing the hinge 3. A device 40 is provided. In the present embodiment, the fixing device main wall 44 is connected to the skirt portion 11 of the lid member 1 by bending from the external stress separately from the skirt portion 11. The latching projection 41 and the fixing device releasing projection 43 are provided outside the main wall.
As a fixing device provided on the skirt portion 21 of the crown member 2, a latching projection 51 is provided on the inner side of the skirt portion 21, and the projection engages with the latching projection 41 of the lid member 1. The size. A knob 52 is provided on the outer side of the skirt 21 provided with the latching projection 51 of the crown member 2.
[0016]
When the crown member 2 is in the closed state, the leaf spring 4 and the presser plate 5 are in a state where the presser plate 5 pushes and bends the plate spring 4 and has a repulsive force as shown in FIG. The lid member 1 and the crown member 2 are fixed.
The fixing device 40 has a function of fixing the repulsive force of the leaf spring 4 and releasing the fixing by a one-touch action at the time of use. That is, the latching projections 41 and 51 are fixed by engaging the latching projections 51 of the crown member 2 and the latching projections 41 of the lid member and pressing the fixing release projection 43 with a finger or the like. At this moment, the crown member 2 is rotated and released outward by the repulsive force of the leaf spring 4, and the spout 6 is exposed.
[0017]
As described at the beginning of the description section of the embodiment, the hinge cap C was attached and the dressing was dispensed, but both the opening and reclosing of the crown member 2 could be performed with a light force.
[0018]
【The invention's effect】
In the hinge cap according to the present invention, the following effects can be obtained. Since the hinge is one point, the projection of the hinge portion is less than that of the conventional three-point hinge, and the mechanical suitability of automatic capping in the filling and packaging machine is excellent.
Also, when dispensing the contents, when opening the crown member, just press one point with your finger etc., the spout is easily exposed, and the lid does not return while the contents are flowing out, Easy to pour. Since the user can open and close with one hand and one touch, it is very easy to handle.
Further, since the hinge cap according to the present invention is an integrally formed pouring tap, it is economically advantageous compared to the pouring tap assembled from a plurality of conventional parts, and the hinge cap can be used for a wide range of applications. We were able to provide technology related to the structure.
[Brief description of the drawings]
FIG. 1 is a perspective view of a hinge cap in a fully open position or an injection molded state for explaining the present invention.
FIG. 2 is a plan view.
FIG. 3 is a cross-sectional view in an open state.
FIG. 4 is a sectional view in a closed state.
FIG. 5 is a partially enlarged view showing a state where the pressing plate is bending the leaf spring.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lid member 2 Crown member 3 Integral molding hinge 4 Leaf spring 5 Leaf spring pressing plate 6 Outlet 7 Plug member 11 Skirt portion 12 of lid member Bottom wall portion 21 of lid member 22 Skirt portion 22 of crown member Bottom wall portion of crown member 40 Fixing Device 41 Fixing Device Receiving Convex 42 Fixing Device Receiving Concave 43 Fixing Release Projection 44 Fixing Device Main Wall 51 Crowning Member Holding Projection 52 Knob C Hinge Cap B Container Body

Claims (1)

Forming a spout (6) with a lid member (1) suitable for interengagement, the final cap closing the spout (6) placed over the lid member (1) to the opening neck of the container a crown member (2) which, together with the these cover member (1) and crown member (2), is closed bottom wall portion (12, 22) and a skirt portion (11, 21) respectively, said lid the member (1) and crown member (2), the integrally molded hinge is integral by integral molding hinge projecting from each of the skirt portion (3), the lid member (1) and crown member (2) ( 3) a fixing device main wall (44) provided on the lid member (1) for fixing the lid member (1) and the crown member (2) so as to be openable and closable at a position opposite to 3) , the fixing device Receiving projection (41) , fixing device receiving recess (42) , fixing release projection (43) , crown projection (51) provided on the crown member (2 ) , knob (52) comprising a fixing device is provided, also, the cover member (1) and the integral formation of the crown member (2) Inside the position near the hinge (3) comprises at least one plate spring standing vertically (4) is provided in the upper surface of the bottom wall portion of the cover member (1) (12), said crown member ( under surface of the bottom wall portion of 2) (22), when the said cover member (1) and crown member (2) is fitted in the fixing device the folded integrally molded hinge (3), pressing plate of the tongue-shaped tip portion so as to bend press the leaf spring (4) has a large curvature (5) provided so as to form a right angle with the plate spring (4), the lid member in the fixing device (1) Remove the fixed crown member (2) to, upon opening the spout (6) of the cover member (1), press the unlocking projection (43) of said cover member (1) by applying, by the repulsive force of the lid member (1) and crown member (2) and engaging with said plate has portions out spring (4), said crown member (2), said lid member ( A hinge cap characterized by being instantaneously opened from 1) .

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