JP4500557B2 - cap - Google Patents

Description

  The present invention relates to a cap that is attached to an opening of a bottle into which beverages and seasonings are placed, and more particularly to an improvement for improving the operability in the opening / closing operation of a cap attached to a bottle.

In the conventional concept such as universal design, it has been confirmed that applying a cap with a large outer diameter to a beverage container or the like is effective in terms of improving operability. As a result, the opening operation is improved, but at the same time, the cap is easily tightened to the bottle even during the closing operation. For example, the following is disclosed in relation to such a technique for adjusting the opening / closing operation of the cap.
Patent Document 1 includes a cap body that connects a ring-shaped sealing band to a lower end of a peripheral wall via a thin brittle bridge, and an overcap that is attached to the cap body. A sealing cap with an overcap is disclosed in which a knurled eye is provided and fixed to the peripheral surface, and an outer shape such as an outer peripheral diameter of the overcap is increased to facilitate opening of the cap.
JP 2003-40297 A

However, the sealing cap with an overcap described in Patent Document 1 makes it easy to open the cap, but there is a problem that the cap is overtightened during resealing.
The present invention was made to solve the above-described conventional problems, and can be easily opened and resealed with an appropriate torque, and the operating torque can be adjusted to provide excellent operability and handling. The purpose is to provide a cap.

(1) The cap of the present invention is
The top wall,
A cap body having a skirt portion depending from the periphery of the top wall;
A cap comprising: a ring-shaped tube portion that is crowned so as to cover the cap body; and an outer lid having a top plate portion extending inwardly from an upper end portion of the ring-shaped tube portion ,
The said skirt portion inner peripheral surface, have a female screw portion which engages the external thread formed portion formed on bottle mouth periphery,
The ring-shaped tube portion has a locking portion that locks the cap body in the vertical direction,
The inner peripheral surface of the ring-shaped cylindrical portion, a ratchet piece can be locked with the ratchet pawl formed on an outer peripheral surface of the skirt portion a plurality provided we are at intervals in the circumferential direction,
When unplugging the the caps, and the ratchet pawl and said ratchet piece locks firmly engaged in a state screwed the female screw portion of the cap body to the external thread formation of the bottle,
When resealing the cap, when the torque more than necessary is applied, the ratchet pawl and the ratchet piece are idled to prevent the cap body from rotating.
(2) cap of the present invention, Oite to (1), by changing the radial protruding amount of the ratchet pawl and the ratchet pieces, so as to set the size of the torque applied to the cap body at the time of resealing It is characterized by that.

According to the present invention includes a cap body which cap is provided with a ratchet pawl, and an outer lid ratchet piece can be locked thereto are provided a plurality at intervals in the circumferential direction,
The ring-shaped tube portion has a locking portion that locks in the vertical direction with the cap body,
When opening the cap, with the cap body screwed into the bottle, the ratchet pawl and the ratchet piece are firmly locked, and when resealing the cap, when excessive torque is applied Since the ratchet pawl and the ratchet piece are idled to prevent the cap body from rotating, the cap can be resealed with an appropriate torque by the action of the ratchet pawl and the ratchet piece.
Furthermore, the operating torque can be adjusted by the ratchet pawl and the ratchet piece, and a cap excellent in handleability can be provided.
Therefore, unlike a conventional knurled mesh, there is no possibility of overtightening due to the force of resealing.

According to the present invention, since the outer lid includes the ring-shaped tube portion and the top plate portion extending inward from the upper end portion of the ring-shaped tube portion, it is possible to provide a cap that covers the entire cap body. it can.

According to the present invention, the ratchet pawl is formed on the outer peripheral surface of the skirt portion, and the ratchet piece is formed on the inner peripheral surface of the ring-shaped tube portion, so that torque adjustment at the time of cap resealing is easily set. be able to.

According to the present invention, it is possible to set the magnitude of the torque applied to the cap body at the time of resealing by changing the radial protrusion amount of the ratchet pawl and the ratchet piece. The torque can be set so that the cap is further excellent in handling.

The cap of the present invention includes a cap body that is screwed into a container opening such as a resin bottle, a glass bottle, and a threaded can, an outer lid that is crowned to cover the cap body, and the cap body and the outer lid. A ratchet mechanism that is provided and releases a torque greater than a specified value that is added in the rotational direction at the time of resealing.
Accordingly, the cap can be opened and resealed with an appropriate torque, and a cap excellent in operability and handleability can be provided.
Embodiments 1 and 2 embodying the cap of the present invention will be described below with reference to the drawings.

1A is a longitudinal cross-sectional view of a cap according to Embodiment 1 of the present invention, FIG. 1B is a cross-sectional view taken along the line A-A of FIG. 1, and FIG. It is a longitudinal cross-sectional view at the time of attaching to a part outer periphery.
2A is a longitudinal sectional view of the outer lid of the cap, FIG. 2B is a side view of the cap body, FIG. 2C is a longitudinal sectional view of the cap body, and FIG. ) Is a top view of the cap body.
FIG. 3A is a top view of the outer lid 2 of the cap of the first embodiment as viewed from the front side, and FIG. 3B is a side view of the cap as viewed from the side.

As shown in FIGS. 1 to 3, the cap according to the first embodiment includes a cap body 1 and an outer lid 2 that is crowned so as to cover the cap body 1 from above.
The cap body 1 has a top wall 1a and a skirt portion 1b that hangs down from the periphery of the top wall 1a.
The outer lid 2 has a top plate portion 2a and a ring-shaped cylindrical portion 4 depending from the periphery of the top plate portion 2a. The outer lid 2 is attached to the skirt portion 1b coaxially from the upper part of the cap body 1. Configure the cap.
Further, the inner peripheral surface of the skirt portion 1b of the cap body 1 has a female screw portion 1e that engages with a male screw forming portion 3a formed on the outer periphery of the bottle mouth portion 3, and a plurality of outer peripheral portions of the skirt portion 1b are provided on the outer periphery. It has one ratchet claw 5.
On the outer lid 2, a plurality of ratchet pieces 6 that can be engaged with the ratchet claws 5 formed on the outer periphery of the skirt portion 1b are projected in an obliquely inward direction at intervals in the circumferential direction. When the female thread portion 1e of the main body 1 can be screwed to the male thread forming portion 3a of the bottle mouth portion 3, and the cap body 1 is crowned with an outer lid, a cap is formed. The ratchet piece 6 of the outer lid 2 is locked.

In this manner, the cap body 1 and the outer lid 2 are locked by the ratchet machine groove disposed in the skirt portion 1b and the ring-shaped cylinder portion 4, whereby a reseal operation with an appropriate torque can be performed.
Further, the lower portion of the ring-shaped cylindrical portion 4 of the outer lid 2 is provided with a locking portion 2c that is convex inward, and when the outer lid 2 is attached to the cap body 1, the locking portion 2c of the outer lid 2 is The lower portion of the skirt portion 1b is locked by a locked portion 1c formed in a ring shape in the outward direction to prevent the outer lid 2 from being detached from the cap body 1 in the upward direction.
The locking portion 2c and the locked portion 1c may be such that protrusions are hooked together, or one is convex and the other is concave, and the convex is concave. It may be in the form of being dropped and locked, and the shape is not particularly limited.

The cap body 1 and the outer lid 2 may be made of synthetic resin such as polyethylene, polyamide, or polypropylene as a material, and a substantially cylindrical member formed by a molding method such as injection or compression. It is preferable to do.
Further, in the first embodiment of the present invention, as shown in FIG. 1 (b), the outer lid 2 has a part of the ring-shaped cylindrical portion 4 of the outer lid 2 outside through a hollow portion 4 b. It has a double wall structure of a cylindrical portion 4a and an inner cylindrical portion 4c.
When the outer diameter of the outer lid 2 is increased, a force is applied to the fingers during opening and resealing operations, and the operability is improved.
On the other hand, if the outer diameter of the outer lid 2 is too large, the bulk of the material such as resin increases, which is disadvantageous in terms of cost and handling.
Therefore, it is preferable to form the hollow portion 4b from which the material of the thick portion of the ring-shaped cylindrical portion 4 is partially removed, thereby saving the material and reducing the weight.

As described above, the cap according to the first embodiment includes the ratchet mechanism including the ratchet pawl 5 and the ratchet piece 6 in the skirt portion 1b and the ring-shaped cylinder portion 4, respectively. When resealing the cap to the bottle mouth portion 3, When a torque more than necessary is applied, the ratchet pawl 5 and the ratchet piece 6 are idled to prevent the cap from being overtightened.
That is, the cap of Example 1 is provided with a ratchet mechanism on the side of the cap main body and the outer lid to reliably restrict the movement of the cap main body in the opening rotation direction and to be added to the bottle in the closing rotation direction. A torque greater than the value can be released to idle.
Further, in the ratchet mechanism, the latched state of the ratchet pawl 5 and the ratchet piece 6 is determined by the shape of the ratchet pawl 5 such as the radial protrusion amount h and width (height direction), and the thickness (thickness) of the ratchet piece 6. By changing, the magnitude of the torque applied to the cap body 1 at the time of cap resealing can be set as appropriate, and the operability according to the use situation is excellent.
The radial protrusion amount h is usually preferably 1 mm or less. However, if this value is large, proper slipping of the outer lid 2 that is crowned on the cap body 1 during resealing operation is inhibited, and excessive tightening is performed. This is not preferable because it becomes difficult to open the plug.

In FIG. 3A, the outer cylindrical portion 4a of the outer lid 2 is shown as a wave shape, but other shapes, for example, a protrusion-like one provided with a protrusion in a part in the circumferential direction, a part in the circumferential direction It is also possible to use a stepped shape in which a recess is provided.
In this way, the outer cylindrical portion 4a of the outer lid 2 is formed on an uneven surface or a rough surface having a predetermined roughness, and the fingers are difficult to slip when gripping and rotating the outer peripheral surface. The operability at the time can be further improved.
In addition, the relative vertical position of the outer lid 2 and the cap body 1 can be slid in stages, thereby changing the vertical locking area of the ratchet pawl 5 and the ratchet piece 6, It is also possible to adjust the magnitude of the torque applied to the cap body 1 as appropriate.

FIG. 4A is a bottom view of the outer lid of the cap according to the second embodiment of the present invention as viewed from the lower surface thereof, and FIG. 4B is a longitudinal sectional view of the outer lid of the cap. Is a longitudinal sectional view of the cap body to which the outer lid is attached;
FIG. 4D is a top view of the cap body. FIG. 5A is a longitudinal sectional view when an outer lid is attached to the cap body, and FIG. 5B is a sectional view taken along line BB.
As shown in FIGS. 4 and 5, the cap according to the second embodiment includes a cap body 11 and an outer lid 12 that is attached so as to cover the cap body 11 from above.
The cap body 11 includes a top wall 11a and a skirt portion 11b that hangs down from the periphery of the top wall 11a. The outer lid 12 has a top plate portion 12a and a ring-shaped cylindrical portion 14 that hangs from the periphery of the top plate portion 12a. The outer lid 12 is attached from the top of the cap body 11 coaxially with the skirt portion 11b of the top wall 11a. Thus, the cap of the present invention is configured.

Further, a locking portion 12 c is provided at the lower part of the ring-shaped cylindrical portion 14 of the outer lid 12, and when the outer lid 12 is attached to the cap body 11, the outer lid 12 is engaged with the locked portion 11 c of the cap body 11. The outer lid 12 is prevented from being detached upward from the cap body 11.
Further, a plurality of ratchet claws 15 are provided on the outer surface (upper surface) of the top wall 11 a of the cap body 11.
On the inner surface of the top plate portion 12a of the outer lid 12, a plurality of ratchet pieces 16 that can be engaged with the ratchet pawls 15 formed on the top surface wall 11a are projected obliquely downward at intervals in the circumferential direction. When the cap is formed by attaching the outer lid 12 to the cap body 11, the ratchet pawl 15 of the cap body 11 and the ratchet piece 16 of the outer lid 12 are locked.
In this way, the cap body 11 and the outer lid 12 are locked by the ratchet machine groove disposed on the top surface wall 11a of the cap body 11 and the top surface wall 11a of the inner surface of the outer lid 12, thereby performing a reseal operation with an appropriate torque. It can be performed.

As described above, the cap according to the second embodiment includes the ratchet mechanism including the ratchet pawl 15 and the ratchet piece 6 on the top wall 11a and the top plate portion 12a, respectively. Therefore, when resealing the cap to the bottle mouth portion 3, When a torque more than necessary is applied, the ratchet pawl 15 and the ratchet piece 16 are idled to prevent the cap from being overtightened.
That is, the cap of Example 2 is provided with a ratchet mechanism at the upper part of the cap body and the lower part of the outer lid, and reliably regulates the movement of the cap body in the opening rotation direction and is added to the bottle in the closing rotation direction. The above torque can be released to idle.

4A, the outer cylinder portion of the outer lid 12 is shown as a wave shape, but other shapes may be used.
Further, the relative vertical position of the outer lid 12 and the cap body 11 can be slid in a stepwise manner, thereby changing the vertical locking area of the ratchet pawl 15 and the ratchet piece 16, so that at the time of resealing It is also possible to adjust the magnitude of the torque applied to the cap body 11 as appropriate.
The plurality of protrusions 17 provided on the peripheral edge of the top wall 11a of the cap body 11 and the plurality of protrusions 18 provided on the inner peripheral surface of the top plate 12a of the outer lid 12 are used to store the liquid content in the container. When the cap is first tightened after filling, it is provided so that the closing torque from the capper is reliably transmitted. By applying a rotational force together with the pressing force from above, the protrusion 17 and the protrusion 18 are provided. Engages and transmits the rotational force from the capper to the cap.

  INDUSTRIAL APPLICABILITY The present invention can be suitably applied to a cap attached to a bottle mouth portion into which beverages, seasonings and the like are placed, and can provide a cap having excellent operability when opening and resealing.

(A) is a longitudinal cross-sectional view of the cap which concerns on Example 1 of this invention, (b) is the AA cross-sectional view, (c) is a longitudinal cross-sectional view at the time of mounting | wearing a bottle with a cap. . (A) is a longitudinal sectional view of the outer lid of the cap, (b) is a side view of the cap body, (c) is a longitudinal sectional view of the cap body, and (d) is a top view of the cap body. . (A) is the top view which looked at the outer cover of the cap from the front side, (b) is the side view seen from the side. (A) is the bottom view which looked at the outer cover of the cap based on Example 2 of this invention from the lower surface, (b) is a longitudinal cross-sectional view of the outer cover of a cap, (c) is an outer cover crowned It is a longitudinal cross-sectional view of the cap main body made, (d) is a top view of a cap main body. (A) is a longitudinal cross-sectional view at the time of attaching an outer cover to a cap main body, (b) is the BB cross-sectional view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cap main body 1a Top surface wall 1b Skirt part 1c Locked part 1e Female thread part 2 Outer cover 2a Top plate part 2c Locking part 3 Bottle opening part 3a Male thread formation part 4 Ring-shaped cylinder part 4b Hollow part 4a Outer cylinder part 4c Inside Tube part 5 Ratchet claw 6 Ratchet piece 11 Cap body 11a Top wall 11b Skirt part 11c Locked part 12 Outer cover 12a Top plate part 12c Locking part 14 Ring-shaped cylinder part 15 Ratchet claw 16 Ratchet piece 17 Projection 18 Projection h Radial protrusion

Claims (2)

The top wall,
A cap body having a skirt portion depending from the periphery of the top wall;
A cap comprising: a ring-shaped tube portion that is crowned so as to cover the cap body; and an outer lid having a top plate portion extending inwardly from an upper end portion of the ring-shaped tube portion ,
The said skirt portion inner peripheral surface, have a female screw portion which engages the external thread formed portion formed on bottle mouth periphery,
The ring-shaped tube portion has a locking portion that locks the cap body in the vertical direction,
The inner peripheral surface of the ring-shaped cylindrical portion, a ratchet piece can be locked with the ratchet pawl formed on an outer peripheral surface of the skirt portion a plurality provided we are at intervals in the circumferential direction,
When unplugging the the caps, and the ratchet pawl and said ratchet piece locks firmly engaged in a state screwed the female screw portion of the cap body to the external thread formation of the bottle,
A cap characterized in that when the cap is resealed, the ratchet pawl and the ratchet piece idle when the torque more than necessary is applied to prevent the cap body from rotating. The cap according to claim 1 , wherein a magnitude of torque applied to the cap body at the time of resealing is set by changing a radial protrusion amount of the ratchet pawl and the ratchet piece.

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