JP5992220B2 - Hinge cap - Google Patents

Description

  The present invention relates to a hinge cap comprising a cap body fixedly held at the mouth of a container and a lid connected to the cap body via a hinge, and in particular, a container filled with heated contents. It is related with the technique which can avoid effectively the malfunction which the shower water sprayed in order to cool these containers and hinge caps infiltrate into a hinge cap after fixing and holding to.

  After filling the contents into the container, the hinge cap is stoppered and fixed and held at the mouth of the container. In the contents filling and stoppering process, for example, when the contents are food, the container is filled. In addition to the contents themselves, in order to sterilize the container and the hinge cap, the contents are heated and filled into the container. And after heating and filling the contents, spray the shower water on the outside of the container and the hinge cap (sprinkle water with a relatively high temperature first, then switch to a low temperature water and spray it) It is common to perform cooling (cooling step).

  By the way, in the hinge cap plugged into the container after heating and filling, the air in the hinge cap (air between the cap body and the lid body) expands at the time of relatively hot hot water shower. The body may open without permission (the hot water shower warms and expands the inside of the cap, increasing the internal pressure, pushing up the upper lid and inadvertently opening the lid). Further, since air in the hinge cap is cooled and contracted by spraying shower water having a low temperature, there is a possibility that water is drawn into the cap. For example, in Patent Document 1, a space in the cap formed between the cap body and the upper lid is divided into an inner space and an outer space by a circumferential side wall portion, as a countermeasure for such a problem. A cap is shown in the outer space so as to prevent the ingress of water into the negative inner space by making it equal to the outside air through a notch.

Japanese Utility Model Publication No. 5-24549

  However, since shower water is evenly distributed over the entire container, water may enter the outer space through the notch even in the cap described above, which may cause water to be drawn into the inner space. For this reason, the appearance of a new hinge cap that can more reliably prevent the ingress of water has been strongly demanded.

  The subject of this invention exists in the place which proposes the new hinge cap which can prevent more reliably the malfunction which the shower water sprayed at a cooling process permeates into the inner side.

The present invention has an annular claw portion that stands up from the top wall that covers the mouth portion of the container, and is connected to the cap body via a hinge while being fixedly held by the mouth portion, and to the annular claw portion. A hinge cap provided with a lid for locking the annular recess provided on the peripheral wall to maintain a closed posture;
The annular claw portion includes a root portion connected to the top wall, and an outward tip portion connected to the root portion and linked to the annular recess,
The annular recess is provided with a recess inner peripheral surface that comes into airtight contact with the outer peripheral surface of the outward tip portion,
Provided on the edge of the peripheral wall an inner peripheral surface of the peripheral wall that comes into airtight contact with the outer peripheral surface of the root portion ;
On at least one side of the upper surface of the top wall and the lower surface of the peripheral wall, at least one step portion is provided that contacts the other side in the closed posture of the lid and forms a gap therebetween.
The at least one step portion moves downward on the peripheral wall by contacting the upper surface of the top wall and the other side of the lower surface of the peripheral wall when the hinge cap is attached to the mouth of the container by plugging. The outer peripheral surface of the outer circumferential surface of the outer peripheral surface of the annular concave portion and the outer peripheral surface of the annular concave portion and the outer peripheral surface of the root portion, which are blocked and expanded radially outward in the radial direction, are airtightly contacted. The hinge cap is characterized in that an air discharge passage in the hinge cap is formed by separating two contact portions between the peripheral wall and the inner peripheral surface of the peripheral wall .

  It is preferable that a convex portion projecting toward the other side is provided on either one of the outer peripheral surface of the root portion and the inner peripheral surface of the peripheral wall.

  When attaching a hinge cap to the mouth of the container on the other side of the outer peripheral surface of the base portion and the inner peripheral surface of the peripheral wall by plugging, the outer peripheral surface of the base portion and the inner peripheral wall It is preferable to provide a vertical rib that forms an air exhaust passage in the hinge cap between the peripheral surface and the peripheral surface.

  An annular claw portion of the cap body is composed of a root portion that is connected to the top wall of the cap body, and an outward-facing tip portion that is connected to the root portion and linked to an annular recess provided in the lid body. Since the concave portion is provided with a concave inner peripheral surface that is in airtight contact with the outer peripheral surface of the outward tip portion, and the peripheral wall inner peripheral surface that is in airtight contact with the outer peripheral surface of the root portion is provided at the edge of the peripheral wall of the lid. The cap body and the lid body are sealed twice, so that water can be surely prevented from entering the hinge cap.

The cap body includes at least one step portion that contacts the other side and forms a gap between them on at least one side of the upper surface of the top wall and the lower surface of the peripheral wall in the closed posture of the lid. Therefore , when the hinge cap is attached to the mouth of the container by the stopper, the air in the hinge cap can be discharged through this gap, and the inside of the hinge cap after the stopper can be surely set to a negative pressure.

  When a convex portion protruding toward the other side is provided on either one of the outer peripheral surface of the root portion and the inner peripheral surface of the peripheral wall, it can be brought into contact with a higher contact pressure because the contact area is reduced. Therefore, the sealing effect can be further enhanced.

  When attaching a hinge cap to the mouth of the container on the other side of the outer peripheral surface of the base portion and the inner peripheral surface of the peripheral wall by plugging, the outer peripheral surface of the base portion and the inner peripheral wall When the vertical ribs that form the air discharge passages in the hinge cap are provided between them and the peripheral surface, the discharge passages are reliably formed regardless of the condition of the stoppers. It can be discharged as expected.

FIG. 2 is a cross-sectional view (cross-sectional view taken along the line XX in FIG. 2) and a partially enlarged cross-sectional view (enlarged view A) showing the embodiment of the hinge cap according to the present invention in a closed position of the cover body. The open posture is also shown by a two-dot chain line. It is a top view which shows the hinge cap shown in FIG. 1 in the open attitude | position of a cover body. It is a perspective view of the hinge cap shown in FIG.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a cross-sectional view and a partially enlarged cross-sectional view showing a hinge cap according to an embodiment of the present invention in a closed state of a lid body, and a partially enlarged cross-sectional view (a two-dot chain line indicates an open posture of the lid body) 2 is a plan view showing the hinge cap shown in FIG. 1 in an open posture of the lid, and FIG. 3 is a perspective view of the hinge cap shown in FIG.

  In FIG. 1, reference numeral 1 denotes a hinge cap. The hinge cap 1 includes a cap body 10 and a lid body 20 that covers an upper portion of the cap body 10. The cap body 10 and the lid body 20 are integrally connected via a hinge h, and the lid body 20 can swing with respect to the cap body 10.

  The cap body 10 includes an outer cylinder 11 that surrounds the mouth B of the container and is fixedly held by the mouth B by undercut engagement. A top wall 12 that covers the mouth B is integrally connected to the upper end of the outer cylinder 11. On the back side of the top wall 12, an annular seal wall 12 a that is in liquid-tight contact with the inner peripheral surface of the mouth B is provided. The outer cylinder 11 is formed by a single peripheral wall having a cylindrical shape in the illustrated example. For example, the outer cylinder 11 includes an inner wall and an outer wall that surrounds the inner wall with a gap therebetween. It is good also as a double wall structure which connected with the space | interval in the circumferential direction so that isolation | separation is possible by several connection pieces. According to the outer cylinder 11 of this double wall structure, after using up the contents, The operation | work which isolate | separates the cap main body 10 becomes easy.

  In the illustrated example, the top wall 12 is provided with an annular planned groove 13a having a concave back surface, and the sealing wall 13 is integrally connected to the radially inner side of the planned fracture groove 13a. In addition, you may provide the fracture | rupture planned groove | channel 13a so that the surface side may become concave.

  Further, a support column 14 is provided upright on the surface side of the sealing wall 13, and an annular pull ring 15 is integrally connected to the upper end of the support column 14. When the contents are poured out, a finger is inserted into the pull ring 15 and pulled up, whereby the sealing wall 13 is torn off along the planned breaking groove 13a to form a pouring opening.

  Reference numeral 16 denotes a dispensing cylinder that surrounds the sealing wall 13 and stands up from the top wall 12. The inner circumferential side of the dispensing cylinder 16 serves as a dispensing path for the contents flowing out from the dispensing opening, and its tip is curved outward to form a lip, improving the liquid drainage performance. Yes. In addition, a vertical rib 16 a is provided on the inner peripheral surface of the dispensing tube 16, and here, as shown in FIG. 2, two adjacent vertical ribs 16 a are arranged to face each other with the sealing wall 13 interposed therebetween. Provided.

  Reference numeral 17 denotes an annular claw portion that surrounds the dispensing cylinder 16 at an interval, as shown in FIG. As shown in the enlarged view A of FIG. 1, the annular claw portion 17 has a root portion 17 a connected to the upper surface of the top wall 12, and protrudes outward in the radial direction further above the root portion 17 a. The tip portion 17b is connected. The outer peripheral surface 17c of the root portion 17a is an upright flat annular surface, and the outer peripheral surface 17d of the outward tip portion 17b is a curved annular surface having a substantially semicircular cross-sectional shape. It has become. Furthermore, at least one vertical rib 17e, which is located below the convex portion 21e of the lid 20 described later, is provided on the outer peripheral surface 17c, as shown in FIG. 2, here.

  Reference numeral 18 denotes at least one step portion formed on the upper surface of the top wall 12 outside the annular claw portion 17 in the radial direction, as shown in FIGS. 2 and 3. In the illustrated example, the step portion 18 has an angular shape in plan view. Further, a total of seven step portions 18 are provided in the circumferential direction in the illustrated example.

  As shown in FIG. 1, the lid 20 includes an annular peripheral wall 21 that is continuous with the outer surface of the outer cylinder 11 and a top wall 22 that is connected to the upper end of the peripheral wall 21. 2 is in contact with the step 18 shown in FIG. Thereby, as shown in FIG. 1, a gap S is formed between the upper surface of the top wall 12 and the lower surface of the peripheral wall 21. Note that the step portion 18 may be provided on the lower surface of the peripheral wall 21 so as to abut the upper surface of the top wall 12. Further, the gap S may be formed so that the lid 20 floats with respect to the cap body 10 without providing the stepped portion 18. The inner surface 21a of the peripheral wall 21 is provided with an annular recess 21b that is detachably locked to the annular claw portion 17 and maintains the lid 20 in a closed position. The outer surface of the peripheral wall 21 is opposed to the hinge h. Is provided with a knob T.

  As shown in the enlarged view A of FIG. 1, the annular recess 21 b of the lid body 20 includes a recess inner peripheral surface 21 c that comes into airtight contact with the outer peripheral surface 17 d of the outward leading end portion 17 b, and the edge of the peripheral wall 21. The inner surface of the portion is a peripheral wall inner peripheral surface 21d that comes into airtight contact with the outer peripheral surface 17c of the root portion 17a. In the illustrated example, the inner peripheral surface 21c of the recess and the inner peripheral surface 21d of the peripheral wall are flat and annular surfaces that stand upright. Furthermore, in the illustrated example, an annular convex portion 21e is provided that protrudes from the inner peripheral surface 21d of the peripheral wall toward the outer peripheral surface 17c of the root portion 17a. And in the surrounding wall 21, the groove | channel m is provided in the site | part located in the upper part of the cyclic | annular claw part 17, and as shown in FIG.

  In addition, a seal cylinder 23 that is in contact with the inner peripheral surface of the extraction cylinder 16 and seals the content extraction path is integrally connected to the back surface side of the top wall 22. As a result, the seal cylinder 23 cooperates with the dispensing cylinder 16 so that the inner space C of the lid body 20 is located on the inner side in the radial direction and the annular space is located on the outer side in the radial direction. It is divided into K. As shown in FIG. 1, the tip 23 a of the seal cylinder 23 is positioned slightly above the vertical rib 16 a in the closed posture of the lid body 20.

  The hinge cap 1 configured as described above is fixed and held in the mouth B of the container by a stopper while the lid 20 is closed after filling the heated contents. Since the tip 23a of the seal cylinder 23 rides on the vertical rib 16a during the plugging, the air in the inner space C is formed into an annular space from a slight space between the extraction cylinder 16 and the seal cylinder 23 that are temporarily formed. Discharged to K.

  Further, since the lower surface of the peripheral wall 21 is in contact with the stepped portion 18, the peripheral wall 21 is prevented from moving downward at the time of stoppering, and slightly expands radially outward. As a result, the outer peripheral surface 17d of the outward leading end portion 17b and the concave inner peripheral surface 21c of the annular concave portion 21b that are in airtight contact with each other, and the outer peripheral surface 17c of the root portion 17a and the peripheral inner peripheral surface 21d of the peripheral wall 21 are provided. The two abutting portions between the convex portion 21e provided on the inner space C are slightly separated, and the air that is discharged from the inner space C and flows into the annular space K is separated from the groove m described above by two locations that are slightly separated from each other. It passes between the contact parts and is discharged to the outside through the gap S. In particular, when the vertical rib 17e is provided, the convex portion 21e rides on the vertical rib 17e by the plugging, so that a gap serving as an air passage is reliably formed between the outer peripheral surface 17c and the peripheral wall inner peripheral surface 21d. The In addition, since the step part 18 mentioned above supports the lower surface of the surrounding wall 21 at the time of stoppering, the deformation | transformation of the cover body 20 accompanying a stoppering can be prevented effectively.

  After the plugging, the lid 20 is immediately restored, and the inner space C and the annular space K return to the original airtight state, so that the inner space C and the annular space K have negative pressure. As a result, after the hinge cap 1 is fixedly held at the mouth B, the lid 20 opens freely even if the air in the inner space C and the annular space K is gradually heated and expanded by the heated contents. Will not be lost.

  In the hinge cap 1 described above, the outer peripheral surface 17d of the outward tip portion 17b and the concave inner peripheral surface 21c of the annular concave portion 21b abut on each other in an airtight manner, and the outer peripheral surface 17c of the root portion 17a and the peripheral inner peripheral surface 21d of the peripheral wall 21 are in contact. Since the provided convex portion 21e comes into airtight contact, and the cap body 10 and the lid body 20 are doubly sealed, even if shower water is sprayed outside the container and the hinge cap in the subsequent cooling step. The water can be reliably prevented from entering the hinge cap 1.

  In the example shown in the figure, the convex portion 21e is provided on the inner peripheral surface 21d of the peripheral wall. However, the convex portion 21e may be provided on the outer peripheral surface 17c of the root portion 17a and brought into contact with the opposing peripheral inner peripheral surface 21d. In addition, the vertical ribs 17e provided on the peripheral surface 17c may be provided on the inner peripheral surface 21d of the peripheral wall. Moreover, although the convex part 21e is made to contact | abut to the outer peripheral surface 17c, you may make the peripheral wall inner peripheral surface 21d contact | abut directly to the outer peripheral surface 17c.

  ADVANTAGE OF THE INVENTION According to this invention, the hinge cap which can remove more reliably the possibility that the shower water sprayed at a cooling process permeates can be provided.

DESCRIPTION OF SYMBOLS 1 Hinge cap 10 Cap main body 12 Top surface wall 17 Annular claw part 17a Root part 17b Outward tip part 17c Outer peripheral surface of the root part 17d Outer peripheral face of the outward tip part 17e Vertical rib 18 Step part 20 Lid 21 Peripheral wall 21b Annular recess 21c Concave inner peripheral surface 21d Peripheral wall inner peripheral surface 21e Convex part B Port h Hinge S Gap

Claims (3)

An annular claw that stands up from the top wall that covers the mouth of the container, and a cap body that is fixedly held by the mouth, and is connected to the cap body via a hinge and provided on the peripheral wall of the annular claw A hinge cap provided with a lid that locks the annular recess to maintain a closed posture,
The annular claw portion includes a root portion connected to the top wall, and an outward tip portion connected to the root portion and linked to the annular recess,
The annular recess is provided with a recess inner peripheral surface that comes into airtight contact with the outer peripheral surface of the outward tip portion,
Provided on the edge of the peripheral wall an inner peripheral surface of the peripheral wall that comes into airtight contact with the outer peripheral surface of the root portion ;
On at least one side of the upper surface of the top wall and the lower surface of the peripheral wall, at least one step portion is provided that contacts the other side in the closed posture of the lid and forms a gap therebetween.
The at least one step portion moves downward on the peripheral wall by contacting the upper surface of the top wall and the other side of the lower surface of the peripheral wall when the hinge cap is attached to the mouth of the container by plugging. The outer peripheral surface of the outer circumferential surface of the outer peripheral surface of the annular concave portion and the outer peripheral surface of the annular concave portion and the outer peripheral surface of the root portion, which are blocked and expanded radially outward in the radial direction, are airtightly contacted. The hinge cap is characterized in that an air discharge passage in the hinge cap is formed by separating two contact portions between the peripheral wall and the inner peripheral surface of the peripheral wall . The hinge cap according to claim 1 , further comprising a convex portion projecting toward the other side on either one of the outer peripheral surface of the root portion and the inner peripheral surface of the peripheral wall. When attaching a hinge cap to the mouth of the container on the other side of the outer peripheral surface of the base portion and the inner peripheral surface of the peripheral wall by plugging, the outer peripheral surface of the base portion and the inner peripheral wall The hinge cap according to claim 2 , further comprising a longitudinal rib that forms an air discharge passage in the hinge cap between the peripheral surface and the peripheral surface.

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