JP4488307B2 - Plastic cap - Google Patents

Description

  The present invention relates to a sealed synthetic resin cap with a lid that opens and closes around a hinge.

The upper surface of the peripheral wall to be fitted to the outer surface of the container neck is closed with a lid that hangs the cylinder from the outer periphery of the top plate. It is possible to open and close the lid centering on the hinge by the finger-hanging ridge, and the rear end of the rod-like protrusion that protrudes backward from the rear surface of the vertical plate to the peripheral wall portion below the finger-hanging ridge. A synthetic resin cap is known in which the upper end of the vertical plate and the front end portion of the finger-hanging ridge are meshed with each other so that the lid can be opened and closed without removing the vertical plate. (Patent Document 1).
Japanese Utility Model Publication 8-275

  In the above conventional example, a vertical plate is used as a sealing body. However, since the sealing body is separately molded with respect to the cap and bonded to the peripheral wall of the cap, the molding is troublesome.

  The present invention is provided so that the entire cap can be integrally formed and a pressing plate used as an insertion plate into the sealing portion at the time of sealing can be used as a finger hanging plate for opening the lid after opening.

As a first means, the upper surface of the peripheral wall to be fitted to the outer surface of the container body neck portion 2 is closed with a lid 27 that hangs the cylinder from the outer periphery of the top plate, and the upper rear surface of the peripheral wall and the lower lower surface of the cylinder are connected by a hinge 31. In the cap, a vertical hole 24 is formed in the front portion of the peripheral wall, and a peripheral wall portion in front of the vertical hole is formed in a sealing plate portion 26 that can be removed by breaking , and the lower end portion of the front portion of the tube 29 is extended in the left-right direction. As the vertical surface 35, a pressing plate 33 in which the lower end front edge of the vertical surface and the upper rear end edge are connected by a second hinge 32 is inserted into the vertical hole 24 so as not to be pulled out, and is located in the middle in the horizontal direction of the vertical surface. A holding bar 36 is vertically provided on the front surface of the part, and a groove 38 is formed in the front-rear direction of the upper surface of the pressing plate 33 in front of the holding bar, and the pressing plate is made substantially horizontal by swinging about the second hinge 32. In this case, the holding rod 36 was formed so as to be fitted into the groove .

As a fourth means, the first means is provided, and the peripheral wall 22 of the cap is integrally formed with the outer peripheral wall 13 of the inner stopper 11 with an opening mechanism that seals the mouth of the container body.

  According to the first aspect of the present invention, the pressing plate 33 that hangs down from the cylinder front part of the lid through the second hinge 32 is inserted into the vertical hole 24 in the front part of the peripheral wall 22 so that it cannot be pulled out. Unless the sealing plate portion 26 in front of the vertical hole is removed, the lid cannot be opened, so that the sealing can be ensured, and the pressing plate 33 can be rotated horizontally around the second hinge 32 after the sealing plate portion is removed. The lid can be easily opened by pushing up the horizontal pressing plate. Therefore, by making the pressing plate large, the fitting of the lower end of the short peripheral wall of the lid to the upper end of the peripheral wall is kept airtight. Therefore, the lid can be opened easily even if it is carried out with a hard fit. Even if the size of the pressing plate is increased, it is suspended before opening, so that it does not get in the way during transportation and display and can be prevented from being damaged by contact with other objects.

Further, the length of the second hinge 32 can be increased, and accordingly, the size of the pressing plate 33 can be made appropriate.

Further, the holding rod 36 can be fitted into the groove, and therefore the pressing plate 33 holds the state of projecting forward from the lower end of the cylinder, so that the lid can be easily opened by pushing up the pressing plate.

By making it like Claim 2 , there exists a convenience which can integrally mold a cap with an inside stopper.

  In the following description of the drawings, reference numeral 1 denotes a container body that stands up the mouth and neck 2. A concave groove 3 is provided at the upper part of the outer surface of the mouth and neck, and a protrusion 4 is provided below the concave groove.

  11 is a well-known plug with a pull ring, and an outer wall 13 suspended from the outer periphery of the top plate 12 is fitted into the groove 3 so that the outer surface of the outer wall 13 is fitted into the groove 3 and the upper outer surface of the container neck portion 2 The bottom surface of the outer peripheral portion of the top plate is placed on the upper end of the neck and neck, and the seal cylinder 14 suspended from the inside of the placement portion is fitted to the inner surface of the mouth and neck. A nozzle cylinder 15 with its upper end expanded upward and outward from a slightly inner upper surface of the top plate portion above the seal cylinder is erected, and the inner plug top plate portion surrounded by the nozzle cylinder is lowered downward and its outer periphery. A groove 16 is provided on the lower surface, and a connecting rod 18 provided with a pull ring 17 is erected from a part of the outer periphery to the upper end, and the weakened part above the groove is broken by pulling up the pull ring so that a spout can be formed. Yes. A cylindrical portion 19 is erected from an inner upper surface part slightly from the outer periphery of the top plate, and a concave portion is provided around the upper outer surface of the cylindrical portion so that the upper outer periphery of the cylindrical portion 19 is a large outer diameter portion.

  Reference numeral 21 denotes a cap, which is integrally formed with the inner plug 11 in the illustrated example. Reference numeral 22 denotes a peripheral wall of the cap. The inner peripheral wall 13 is loosely fitted into the upper part of the peripheral wall, and the lower end of the outer peripheral wall and the inner surface of the peripheral wall are connected by a plurality of connectors 23 at substantially equal intervals. As shown in FIG. 3 and FIG. 4, the front portion of the peripheral wall 22 has a vertical hole 24 formed between the upper portion of the peripheral wall and the front portion of the inner peripheral wall 13 by projecting forward in an arc shape. Both ends of the front overhanging portion and both ends of the non-overhanging portion are connected by a plurality of breakable connectors 25, so that the overhanging portion is a breakable sealing plate portion 26. As in the illustrated example, the portion excluding the lower end portion of the front portion of the peripheral wall may be outwardly extended. The outer peripheral wall 13 and the peripheral wall 22 of the inner plug may be integrated. In this case, a vertical hole is formed in the integrated peripheral wall, and the peripheral wall portion in front of the vertical hole is extended outward to seal the sealing wall. The plate portion 26 is used.

  Reference numeral 27 denotes a lid that opens and closes the upper surface of the peripheral wall 22. The cylinder 29 is suspended from the outer periphery of the top plate 28, and its lower inner surface is fitted to the outer surface of the cylindrical portion 19 of the previously described plug. A ridge 30 is provided around the inner surface of the lower end of the tube, and the ridge is fitted into a recess in the outer surface of the tubular portion. The upper end of the rear portion (right side of the figure) of the cap peripheral wall 22 and the lower end of the rear portion of the short cylinder 29 are connected by a hinge 31.

  A pressing plate 33 is suspended from the lower end edge of the front portion of the tube 29 via a second hinge 32. The second hinge is connected to the rear edge of the upper surface of the pressing plate, and the pressing plate 33 can be inserted into the above-described vertical hole 24 when closed. In the illustrated example, as shown in FIG. 5, an outward flange-like wall 34 is attached to the lower end of the cylinder 29, and the front portion of the flange-like wall is removed in a straight line in the left-right direction, and the removal trace extends in the left-right direction. 35, and a holding rod 36 is provided vertically from the middle in the left-right direction of the vertical surface to the upper cylinder front. The front surface of the cylinder that is in contact with the holding bar is flush with the vertical plane so that the holding bar is substantially vertical. The holding rod may have a cross-sectional shape in which a protrusion is provided on the rear surface of the round bar portion.

  The pressing plate 33 may have a shape in which the semicircular cylinder 33b is suspended from the outer edge arc-shaped portion of the semicircular upper plate 33a as shown in the figure, and the lower portion of the holding rod 36 of the upper plate 33a has an opening 37, or As shown in FIG. 6, the front portion of the opening is a groove 38 having an arcuate cross section. As shown in FIG. 6, the pressing plate 33 is rotated around the second hinge 32 and forcedly pressed against the outer surface of the holding rod 36. A holding rod 36 is provided to fit.

  From the lower surface of the top plate 28 of the lid body 27, a seal cylinder 39 that is watertightly fitted to the inner surface of the nozzle cylinder 15 is suspended.

  The cap is integrally formed with a synthetic resin material in the lid open state shown in FIGS. 3 and 4, and then closed as shown in FIG. In the closed state, the seal cylinder 39 is fitted to the inner surface of the nozzle cylinder 15, and the pressing plate 33 is inserted into the vertical hole 24 so as not to be extracted.

  In the closed state, the pressing plate 33 is inserted into the vertical hole 24 and cannot be opened. Therefore, when the cover is opened, the sealing plate portion 26 formed by the peripheral wall portion in front of the vertical hole is removed. Subsequently, as shown in FIG. 6, the holding plate 36 is fitted into the groove 38 by raising the pressing plate 33 in a horizontal state, and the pressing plate 33 is pushed up from the state to open the lid. After opening the lid, the inner plug top plate portion can be opened by pulling up the pull ring 17.

  In the above-described embodiment, the inner plug 11 is provided with a pull ring, but an outlet hole may be formed in the inner plug top plate, and the outlet hole may be provided so that a stopper hanging from the lid can be opened and closed. The inner plug and the cap may be formed as separate members instead of being integrally formed.

It is a longitudinal cross-sectional view of this invention cap shown in the example integrally molded with the inner stopper. 1 is a plan view of the cap. 1 is a cross-sectional view showing the cap in an open state. FIG. 4 is a plan view of FIG. 3. It is an expansion perspective view of a cap principal part. It is operation explanatory drawing of the principal part of a cap.

Explanation of symbols

1 Container 11 Inside stopper
21 Cap 22 Perimeter wall
23 Connector 24 Vertical hole
25 Connector 26 Sealing plate
27 Lid 28 Top plate
29 Tube 31 Hinge
32 Second hinge 33 Press plate
36 Holding rod 38 Groove

Claims (2)

In the cap in which the upper surface of the peripheral wall to be fitted to the outer surface of the container body neck portion 2 is closed with a lid body 27 that hangs the cylinder from the outer periphery of the top plate, and the upper rear surface of the peripheral wall and the lower rear surface of the cylinder are connected by a hinge 31. A vertical hole 24 is formed in the front portion, a peripheral wall portion in front of the vertical hole is formed in a sealing plate portion 26 that can be removed by breaking , and the lower end portion of the front portion of the cylinder 29 is formed as a vertical surface 35 extending in the left-right direction. A pressing plate 33 in which the lower end front edge of the vertical surface and the upper rear end edge are connected by the second hinge 32 is inserted into the vertical hole 24 so as not to be pulled out, and is held on the front surface of the vertical surface in the horizontal direction. 36 is provided vertically, and a groove 38 is formed in the front-rear direction of the upper surface of the pressing plate 33 in front of the holding rod. When the pressing plate is substantially horizontal by swinging about the second hinge 32, A synthetic resin cap characterized in that the holding rod 36 is formed so that it can be fitted . The synthetic resin cap according to claim 1 , wherein the peripheral wall (22) of the cap is formed integrally with the outer peripheral wall (13) of the inner stopper (11) with an opening mechanism for sealing the container body mouth .