JP5588673B2 - container - Google Patents

Description

  The present invention relates to a container including a container body having a screw thread on the outer peripheral surface of the container mouth portion, and a cap having an engaging portion engaging with the screw thread on the inner peripheral surface.

2. Description of the Related Art Conventionally, there is known a container provided with at least one round of a thread on both the container side and the cap side. This container cannot be opened or closed unless the cap is rotated at least once, and it takes time to open and close the cap.
Accordingly, a container having a plurality of threads that can be opened or closed by rotating the cap with respect to the container at a rotation angle smaller than one rotation has been proposed.
This container is provided with a plurality of inclined threads located at the lower end toward the terminal end at the container mouth, and on the cap side, a plurality of inclinations for entering the space between the threads of the container body and rotating the cap. A hemispherical projection that engages from the vertical direction to the thread on the cap side at the end of the thread on the container body side, and by rotating the container over the cap, The protrusion can press the cap-side thread so that the cap can be tightly attached to the container mouth (see, for example, Patent Document 1).

  Further, as another container, for example, a plurality of guide convex portions formed of parallelograms having a predetermined inclination angle with respect to the axis of the container main body are formed at predetermined intervals on the outer peripheral surface of the container mouth portion, and the lid body Parallel sides for fixing the lid by entering the inner peripheral surface of the guide convex portion so as to bite between adjacent guide convex portions in the circumferential direction. A plurality of protrusions having a shape are formed. Therefore, the lid can be fixed to the container mouth by rotating the lid and press-fitting the protrusion between the guide protrusions (see, for example, Patent Document 2).

JP-A-11-292111 (see FIG. 1) Japanese Patent Laying-Open No. 2008-164057 (see FIGS. 1 to 4)

  In Patent Document 1, since the hemispherical protrusion presses the screw thread on the cap side and fixes the cap to the container mouth portion, the contact area between the hemispherical protrusion and the screw thread is very small. For this reason, the cap and the container mouth may be released immediately after the cap has slightly rotated unexpectedly.

  Also, in Patent Document 2, since the protrusion of the lid bites into only the upper end corner of the guide convex portion formed in the container mouth, the biting range is small, and the cap is unexpected as described above. There was room for improvement because the container mouth could be released immediately after a slight rotation.

  In view of the above-mentioned situation, the present invention intends to provide a container that can be opened and closed at a rotation angle smaller than one rotation, but is not easily released after closing. The task is to do.

In order to solve the above-described problem, the container of the present invention includes a container body having a thread on the outer peripheral surface of the container mouth portion, and a cap having an engagement portion that engages with the screw thread on the inner peripheral surface. A container, wherein the thread is composed of multiple threads, such that the threads extend in a circumferential direction from predetermined positions different in the circumferential direction, and the start end of one adjacent thread and the other The end portion of the thread is provided so as to overlap in the vertical direction, and the engagement portion is composed of a plurality of pairs of upper and lower pair of engagement claws. A leading end portion that guides the engaging claw in the rotation direction, and an inclined guide that extends from the terminal end of the starting end portion and that is positioned downward toward the terminal end side to guide the engaging claw guided by the starting end portion downward. And an end portion that is fixed so as to be immovable when the engaging claw guided by the inclined guide portion is engaged. The start end portion and the end end portion have substantially the same length, and are configured to be inclined portions positioned below the end side, and the angles of the both inclined portions with respect to the horizontal direction are the same. It is set to 10 degrees or less, preferably 5 degrees or less, the angle of the inclined guide part is larger than the angle of the starting end part, and the length of the pair of upper and lower engaging claws in the rotational direction is the circumferential direction of the inclined part The pair of upper and lower engaging claws are configured in a horizontally long shape having substantially the same angle as the angle of the inclined portion, and the cap is rotated at an angle smaller than one rotation with respect to the container body. by engage the lower surface of the leading end of the one thread that the upper surface of the upper engagement pawl are adjacent to each other in the circumferential direction of the pair of engagement claws and engagement claw of the lower The upper surface engages the lower surface of the terminal end of the other thread, so that the cap It is characterized by being fixed to the vessel opening.

According to the above configuration, since the thread provided on the outer peripheral surface of the container mouth is composed of multiple threads, the container mouth is covered with a cap and rotated at an angle smaller than one rotation. A cap can be fixed to the container mouth. Moreover, by rotating covered with a cap to the container opening, by being guided by the engaging claw GaHajime end of the lower of the pair of upper and lower engaging claws rotate smoothly cap in the direction of rotation be able to. Further, when the engaging claw moves from the starting end portion to the inclined guiding portion, the engaging portion suddenly moves downward along the inclined guiding surface, moves from the inclined guiding portion to the terminal end portion, and the engaging claw moves to the terminal end portion. Engage and the cap is secured to the container mouth. At this time, not only to engage the termination portion of the other thread engaging portion of the lower side adjacent over a wide range at the beginning end of one of the thread engaging portion of the upper adjacent By engaging, the cap is firmly fixed to the container mouth. In addition, the multi-thread thread is a thread having three or more threads.

  In the container of the present invention, the multi-threaded thread is composed of three or more threads, and the inclined guide portion of each thread is set so that the rotation angle for opening the cap is 240 degrees or less. An inclination angle may be set.

By configuring the thread provided on the outer peripheral surface of the container mouth portion from multiple threads, the cap can be opened and closed at a rotation angle smaller than one rotation. by rotating over the mouth not only engages the end edge of the other thread engaging portion of the lower side adjacent the beginning end of one of the thread engaging portion of the upper adjacent By engaging with the part, the cap can be firmly fixed to the container mouth part, and as a result, it is possible to provide a container that is not easily released after being closed.

(A) The front view which shows the upper part of the container which made the cross section only the cap which shows the state just before attaching a cap to a container opening part, (b) is a longitudinal section which shows the upper part of the container of the state which attached the cap to the container opening part It is a front view. (A) is a plan view of the container body, (b) is a view of the container body of (a) viewed from the X1 direction, (c) is a view of the container body viewed from the X2 direction, and (d) is a view of (a). The figure which looked at the container main body from X3 direction, (e) is the figure which looked at the container main body of (a) from X4 direction. (A)-(c) is explanatory drawing which shows the process in which the engaging part by the side of a cap moves when a cap is rotated from the obstruction | occlusion state to a 60 degree open state in the figure which expand | deployed the container opening part. (A)-(c) is the figure which expanded the container mouth part, The explanation which shows the process in which the engaging part by the side of a cap moves when it rotates from the state which opened the cap 120 degree | times to the open state 240 degree | times. FIG. It is a longitudinal cross-sectional view of the container opening | mouth part with which the cap provided with the tamper evidence band was mounted | worn.

  The upper part of the container 1 of this invention is shown to Fig.1 (a), (b). This container 1 is related to a container body 5 made of synthetic resin having three threads 2, 3, 4 on the outer peripheral surface of a cylindrical container mouth 5A, and threads 2, 3, 4 of the container body 5. And a synthetic resin cap 9 having engaging portions 6, 7 and 8 (only two sets of engaging portions 6 and 8 are shown in FIG. 1). FIG. 1A shows a state immediately before the cap 9 is attached to the container body 5, and the cap 9 is shown in a longitudinal sectional view. Moreover, in FIG.1 (b), the vertical front view of the state in which the cap 9 was mounted | worn with the container main body 5 is shown.

  The cap 9 includes a top plate portion 10 that is circular in plan view and a skirt portion 11 that hangs downward from the outer peripheral edge of the top plate portion 10. 6, 7, and 8, and these engaging portions 6, 7, and 8 include a pair of horizontally long upper and lower engaging claws as a set, for a total of three sets of engaging claws 6 </ b> A, 6 </ b> B, 7 </ b> A, 7 </ b> B, 8 </ b> A, 8 </ b> B (See FIGS. 3A to 3C).

On the inner surface (lower surface) of the top plate 10, there is a middle foot 10 </ b> A composed of an annular projecting piece that comes into contact with the inner peripheral surface 5 a of the container mouth 5 </ b> A when the cap 9 is screwed onto the container mouth 5 </ b>A; And an outer foot 10B formed of an annular projecting piece that comes into contact with the outer peripheral surface 5b of the portion 5A.
Here, a one-piece type cap 9 in which a middle foot 10A and an outer foot 10B are integrally provided on the top plate portion 10 is shown, but for example, a middle plug provided with a middle foot 10A and an outer foot 10B; A two-piece type cap composed of two members of the cap main body portion including the top plate portion 10 and the skirt portion 11 may be used. The middle plug may be configured by only the middle foot 10A while omitting the outer foot 10B.

  The three threads 2, 3 and 4 extend in the circumferential direction from different predetermined positions divided into three equal parts in the circumferential direction, and the start ends 2A, 3A and 4A of one adjacent thread and the other screw The mountain end portions 3C, 4C, and 2C are provided so as to overlap in the vertical direction.

Threads 2, 3 and 4, substantially horizontal starting end 2A that guides the engagement portion 6, 7, 8 in the direction of rotation in contact with the engaging portion 6, 7, 8 in the vertical direction, 3A, and 4A, An inclined guide portion 2B that extends from the end of the start end portions 2A, 3A, and 4A, and is positioned closer to the end side to guide the engaging portions 6, 7, and 8 guided by the start end portions 2A, 3A, and 4A downward. , 3B, 4B, and substantially horizontal end portions 2C, 3C, 4C to which the engaging portions 6, 7, 8 guided by the inclined guide portions 2B, 3B, 4B are engaged and fixed so as not to move, There are provided stopper portions 2D, 3D, and 4D for preventing the engaging portions 6, 7, and 8 fixed to the portions 2C, 3C, and 4C from being unmovably further moved to the end side unexpectedly.

  In addition, the start end portions 2A, 3A, 4A and the end portions 2C, 3C, 4C have substantially the same length, and are configured as inclined portions that are positioned downward toward the end side, and the angles of both inclined portions with respect to the horizontal direction. Are the same, and the angle is set to about 2 degrees. Further, the length of the pair of upper and lower engaging claws 6A, 6B, 7A, 7B, 8A, 8B in the rotational direction is shorter than the circumferential length of the inclined portions 2A, 3A, 4A, 2C, 3C, 4C. In addition, the pair of upper and lower engaging claws 6A, 6B, 7A, 7B, 8A, 8B are configured in a horizontally long shape having substantially the same angle as the angles of the inclined portions 2A, 3A, 4A, 2C, 3C, 4C. .

Therefore, by rotating at an angle less than one revolution relative to the container body 5 of the cap 9, the pair of engagement claws 6A, 6B, 7A, 7B, 8A, the upper engaging claw 6A of 8B, 7A, 8A is engaged over a wide range starting end 2A, 3A, to 4A of one of the threads 2, 3, 4 adjacent to each other in the circumferential direction, and the lower engaging claw 6B, 7B, 8B Is engaged with the terminal portions 3C, 4C, 2C of the other threads 3, 4, 2 over a wide range, so that the cap 9 is firmly fixed to the container mouth 5A. .

Next, three sets of engagement claws 6A from a state where the cap 9 is stoppered until cap removal, 6B, 7A, 7B, 8A, FIG. 3 (a) ~ the movement of 8B (c) and 4 ( A description will be given based on a) to (c).
FIG 3 (a), 3 pairs of engagement claws 6A, 6B, 7A, 7B, 8A, the upper engaging claw 6A of 8B, 7A, the upper surface of 8A, beginning 2A, 3A, 4A of in contact with the lower surface, and that the lower side of the engaging claw 6B, 7B, the upper surface of the 8B abuts against the lower surface of the terminal portion 3C, 4C, 2C, and is firmly fixed to the cap 9 to the container opening 5A Indicates the state.
With 45 degrees unplugging counterclockwise in a plan view of the cap 9 from this state, as shown in FIG. 3 (b), the upper engaging claw 6A, 7A, 8A is beginning 2A, 3A, with out of the 4A moves below the engagement pawl 6B, 7B, 8B termination unit 3C, 4C, at a position deviated from 2C.
Further, when the 60-degree unplugging and 15 degrees unplugging from 45 degrees, as shown in FIG. 3 (c), the upper engaging claw 6A, 7A, 8A is inclined guide portions 3B, 4B, with 2B Move as guided.
The further 30 ° to unplugging from 60 degrees, as shown in FIG. 4 (a), the upper engaging claw 6A, 7A, 8A are guided beginning 3A, 4A, in 2A, the lower engaging claw 6B , 7B, 8B are guided to the end portions 4C, 2C, 3C. Further, when unplugging 120 degrees and further 30 degrees unplugging, as shown in FIG. 4 (b), the upper engaging claw 6A, 7A, 8A is beginning 3A, 4A, in the substantially longitudinal center of 2A move, move below the engagement pawl 6B, 7B, 8B termination unit 4C, 2C, in the substantially longitudinal center of 3C.
When unplugging further 120 degrees unplugging to 240 degrees from this state, as shown in FIG. 4 (c), the upper engaging claw 6A, 7A, deviates from 8A screw mountain 2,3,4, lower engagement claws 6B, 7B, 8B become unplugging state of being placed beginning 3A, 4A, in 2A, the complete cap 9 by lifting the cap 9 upward in this unplugging state from the container mouth portion 5A Can be removed. When the cap 9 is opened from the opened state, the operation is reversed.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

  For example, a configuration in which the cap 9 can be confirmed to be opened may be added to the cap 9 for implementation. Specifically, as shown in FIG. 5, a plurality of breakable bridges 13 formed at the lower end of the skirt portion 11 of the cap 9 and a tamper evidence band connected to the skirt portion 11 through the bridges 13 ( (TE band) 14, and a locking member 15 for retaining the cover that is folded inward from the lower end of the TE band 14, and a locking protrusion (bead) 16 that protrudes from the lower outer periphery of the container mouth 5 </ b> A. It is possible to confirm that the cap 9 has been opened by locking the cap 9 from below and applying a rotational force in the opening direction to break the bridge 13. When the bridge 13 is broken, the TE band 14 can be held in a retaining state by the locking member 15 being locked to the locking protrusion (bead) 16.

Moreover, in the said embodiment, although the inclination-angle of the start part and the terminal part was set to 2 degrees, as long as it is 10 degrees or less, you may set what kind of angle. Incidentally, preferably not to desired to set at 5 degrees or less angle.

  Moreover, in the said embodiment, although the inclination angle of the inclination guide part of each screw thread was set so that the rotation angle for opening the cap 9 might be 240 degrees, if it is 240 degrees or less, it will set as many times. May be.

  Moreover, in the said embodiment, although the thing provided with the three thread | threads 6, 7, and 8 was shown, it may be provided with the thread | thread of four or more threads. Further, two sets of upper and lower pairs of engaging claws may be provided for the three threads, and if four threads are provided, two sets of engaging claws are provided. Alternatively, four sets may be provided.

  Moreover, in the said embodiment, although stopper part 2D, 3D, 4D was provided, you may abbreviate | omit. When omitted, it is preferable that the end portions 2C, 3C, 4C are configured to be slightly longer.

  DESCRIPTION OF SYMBOLS 1 ... Container, 2, 3, 4 ... Screw thread, 2A, 3A, 4A ... Start end part (inclination part), 2B, 3B, 4B ... Inclination guide part, 2C, 3C, 4C ... End part (inclination part), 2D , 3D, 4D ... stopper portion, 5 ... container body, 5A ... container mouth portion, 5a ... inner peripheral surface, 5b ... outer peripheral surface, 6, 7, 8 ... engaging portion, 6A, 6B, 7A, 7B, 8A, 8B ... engaging claw, 9 ... cap, 10 ... top plate part, 10A ... middle leg, 10B ... outer leg, 11 ... skirt part, 13 ... bridge, 14 ... band, 15 ... locking member

Claims (2)

A container comprising a container body having a thread on the outer peripheral surface of the container mouth portion, and a cap having an engagement portion engaging with the thread on the inner peripheral surface,
The thread is composed of multiple threads, and the threads extend in the circumferential direction from predetermined positions different in the circumferential direction, and the start end of one adjacent thread and the end of the other thread And the engagement portion is composed of a plurality of pairs of upper and lower engagement claws, and each of the screw threads is in contact with the engagement claws in the vertical direction. A tilting guide portion extending downward from the end of the start end and positioned downward toward the end to guide the engaging claw guided by the start end downward, and the tilt An engaging claw guided by the guiding portion is engaged and fixed so as to be immovable, and the starting end portion and the terminating end portion have substantially the same length, and the lower end side is closer to the end side. It is comprised in the inclined part located, and the angle with respect to the horizontal direction of both these inclined parts is the same, and this angle is 10 degrees or less Preferably is set to less than 5 degrees, the angle of the inclined guide portion is larger than the angle of the leading end portion, the length of the rotation direction of the pair of upper and lower engaging claws is than the circumferential length of the inclined portion The pair of upper and lower engaging claws are configured in a horizontally long shape having substantially the same angle as the angle of the inclined portion, and by rotating the cap with respect to the container body at an angle smaller than one rotation, engages the lower surface the upper surface of the upper engaging claw of the starting end portion of one of the threads adjacent to each other in the circumferential direction of the pair of engaging claws, and the upper surface of the engaging claw of the lower side said other A container characterized in that the cap is fixed to the container mouth by engaging the lower surface of the terminal end of the thread.   The inclination angle of the inclination guide portion of each thread is set so that the multiple threads are composed of three or more threads and the rotation angle for opening the cap is 240 degrees or less. The container according to claim 1.

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