JP3837592B2 - Hinge cap - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a synthetic resin hinge cap which is assembled to a housing and can be easily separated from the housing at the time of disposal.
[0002]
[Prior art]
As a conventional example of this type of hinge cap, one described in Japanese Patent Laid-Open No. 11-321913 is known.
[0003]
This prior art forms a tearing part by forming two weakening lines in the longitudinal direction on the assembled cylinder of the cap body, and the upper end of the tearing part is connected to the upper end of the assembled cylinder via a top plate. The cap is formed by connecting it integrally to a gripping part provided concentrically on the outside of the pouring cylinder piece arranged upright, and providing an outer lid that covers both the pouring cylinder piece and the gripping part. It is easy to perform a breaking operation for separation without being obstructed, and constitutes a gripping portion that is not erroneously operated during the first opening.
[0004]
[Problems to be solved by the invention]
However, in the above-described prior art, the gripping part is provided on the outside of the extraction cylinder piece so as to be covered with the outer lid, so there is a limit to the size thereof, and thus the gripping part is picked with the fingertip. There is a problem in that it is not always possible to apply a sufficient pulling force to the gripping portion, and thus it is difficult to remove the tearing portion, that is, to perform a separation process.
[0005]
Further, since the tear-off part only forms a vertical strip-shaped notch in the assembled cylinder, in order to remove the cap from the housing mouth tube, the assembled cylinder from which the tear-off part has been removed is expanded with a fingertip. There is a problem that the cap must be pulled out while deforming the diameter, and the separation operation of the cap becomes troublesome and requires force.
[0006]
Therefore, the present invention was created to solve the above-described problems in the prior art, so that the weakened line can be easily broken, and the breaking operation of the weakened line can also serve as a cap separating operation. It is an object of the present invention to achieve a cap separation process efficiently without requiring a large operating force.
[0007]
[Means for Solving the Problems]
The first invention of the present application is “a hinge cap in which a cap body (1) and a lid (14) are connected,
The cap body (1) includes an assembly cylinder (2) assembled to the outer periphery of the housing mouth cylinder (19), and a top plate (3) connected to the upper end of the assembly cylinder (2). The lid (14) is connected to the rear end of the cylinder (2) via a hinge (18),
In the vicinity of the hinge (18), a longitudinal weakening line (7) extending over the entire height range of the assembled cylinder (2) and a circumferential weakening line (6) extending in the circumferential direction of the assembled cylinder (2) are provided. In the synthetic resin hinge cap having the lid (14), the longitudinal weakening line (7) and the peripheral weakening line (6) are broken and removed from the casing mouthpiece (19).
On the top plate (3), there is a breaking hole (5) that stands up so that the breaking projection (4) can be pulled up and opens the top plate (3) up and down by pulling up the breaking projection (4). The hinge opened in opposition to the vicinity of the hinge (18), and the peripheral edge of the opened fracture hole (5) is continuous with the front longitudinal weakening line (7) and the peripheral weakening line (6) cap. Is.
[0008]
At the time of sorting and disposal, with the lid open, the broken projecting piece is pulled up or pulled down to open a fracture hole, and the peripheral weakening line extends with the lid in the open position. The circumferential weakening line and the longitudinal weakening line are broken from one end connected to the breaking hole, and the lid is lifted as it is, thereby achieving separation of the hinge cap from the casing mouth tube.
[0009]
When the lid is operated, the circumferential weakening line and the longitudinal weakening line are broken because the opened break hole is located close to the hinge connecting the lid to the cap body. The rotating force acts as a pulling force directly around the breaking hole without waste, so that one end of the circumferential weakening line and the longitudinal weakening line is connected to the broken breaking hole, so this one end can be easily Begin to break.
[0010]
In addition, since the breakage of the circumferential weakening line results in an expansion deformation of the assembled cylinder, the assembling force of the assembled cylinder with respect to the housing mouth tube will be greatly reduced. By pulling up the lid, it is possible to easily achieve separation of the hinge cap from the casing tube.
[0011]
According to a second aspect of the present invention, in the first aspect of the present invention, a thin broken line that is easy to break is formed at the rear end portion of the top plate of the cap body, which is opposed to the hinge. And a rupture protrusion piece is erected on one end of the upper surface of the rupture wall piece.
[0012]
In the second aspect of the invention, since a sufficiently large break hole can be opened regardless of the size of the break protrusion, the break hole at the start of breakage of both weakened lines with the lid A large breaking force can be applied to one end of the weakened wire connected to the wire, thereby making it very easy to break the weakened wire.
[0013]
A third invention is the same as that of the first invention, on the top rear end portion of the top plate of the cap body that is close to the hinge, on the opposite side to the side where the circumferential weakening line extends, through a thin portion that is easily broken. This is in addition to the fact that the breaking protrusions are connected and erected.
[0014]
In the third aspect of the invention, since the breaking protrusion is erected directly on the top plate through the thin portion, the breaking hole can be opened very simply by pushing and tilting the breaking protrusion.
[0015]
Further, since the opened break hole is located close to the hinge end on the side opposite to the side where the circumferential weakening line extends, if the lid is rotated in the direction in which the circumferential weakening line extends, A large tensile force acts on the longitudinal weakening line, so that the longitudinal weakening line can be reliably broken.
[0016]
In a fourth aspect of the present invention, in the first aspect of the present invention, a plate-like fracture protrusion extending over the entire width range of the hinge is erected on the rear surface of the top surface of the top plate of the cap body, which faces the hinge. In addition to the fact that at least the portion on the opposite side of the hinge and both side portions of the base end portion connected to the top plate of the rupture protrusion have a thin structure that is easy to break.
[0017]
In this fourth aspect of the invention, it is possible to open a fracture hole having a sufficiently large length along the circumferential direction by simply pulling the fracture protrusion backward, thereby holding the lid. It is very easy to break the weakened line, and it is not necessary to break and separate the broken projecting pieces. Therefore, the hinge cap can be separated from the casing tube while maintaining the integral structure.
[0018]
5th invention adds the thing which connected the end of the longitudinal weakening line to the edge part on the opposite side to the direction side where a circumferential weakening line extends in the 1st thru | or 4th invention. .
[0019]
In this fifth invention, when the lid is rotated in the direction in which the circumferential weakening line extends in order to break both weakening lines, the hinge is supported at one end on the direction in which the circumferential weakening line extends. As a result, the pulling force is concentrated on the end of the fracture hole facing the other end of the hinge, and one end of the longitudinal weakening line is connected to the end of the fracture hole. The line is easily broken by a turning operation in the direction in which the peripheral weakening line of the lid extends.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
The hinge cap is composed of a cap main body 1 that is externally fitted to the casing mouth tube 19 by undercut coupling, and a lid body 14 that is connected to the rear end of the cap main body 1 via a hinge 18.
[0021]
The cap body 1 has a top plate 3 connected to the upper end of the assembled cylinder 2 that is externally fitted to the housing mouth tube 19, and the peripheral wall 15 of the lid 14 is detachably attached to the upper peripheral edge of the top plate 3. A fitting step 8 to be fitted is formed, and inside the fitting step 8, a pour cylinder piece 9 extending in a trumpet shape is formed so as to form a spout.
[0022]
A mouth wall 10 having a removal wall portion 12 as an inner portion of the cut line groove 11 is provided in a closed shape at the lower end portion of the extraction tube piece 9, and the removal wall portion 12 is integrally provided on the upper surface thereof. By pulling up the pull ring 13 at the time of use, it is broken and removed along the cut line groove 11 to form a spout.
[0023]
On the inner surface of the top wall 16 of the lid body 14 integrally provided on the cap body 1 via the hinge 18, the lid body 14 is closely fitted into the opening of the dispensing cylinder piece 9 in the closed state, and the spout is formed. A sealed plug cylinder piece 17 is projected.
[0024]
At the rear end of the top surface of the top plate 3 of the cap body 1 that faces the hinge 18 close to each other, a breaking protrusion 4 is erected to open the breaking hole 5 that breaks the top plate 3 and opens up and down. A circumferential weakening line 6 extending in the circumferential direction of the assembled cylinder 2 is provided from the broken hole 5 formed by the broken protrusion 4 to the upper end portion of the assembled cylinder 2, and the total height of the assembled cylinder 2 from the broken hole 5. A longitudinal weakening line 7 extending over a wide range is provided.
[0025]
The combination part of this fracture | rupture protrusion 4, the fracture | rupture hole 5, the circumference weakening line 6, and the longitudinal weakening line 7 comprises the removal functional part which isolate | separates a hinge cap from the housing opening | mouth cylinder 19, This removal functional part is In the first embodiment shown in FIGS. 1 to 4, the rear side portion of the top plate 3 is thin like the relationship between the removal wall portion 12 and the pull ring 13 in the mouth wall 10 of the extraction tube piece 9. A rupture hole formed by projecting a knob-like projecting piece 4 extending in the shape of a bowl at one end of the upper surface of a ruptured wall piece 4a that is surrounded by a break line that is easy to break and is elongated along the circumferential direction. One end of the peripheral weakening line 6 is connected to one end of the peripheral weakening line 6 in the direction in which the peripheral weakening line 6 extends, and one end of the longitudinal weakening line 7 is connected to the other end of the fracture hole 5. 7 is a curved shape that curves while descending in the extending direction of the peripheral weakening line 6.
[0026]
In the first embodiment, when a rotational displacement force in the circumferential direction in which the circumferential weakening line 6 extends is applied to the grasped lid body 14, the breakage of the longitudinal weakening line 7 proceeds in order from the upper end. As the break progresses, the circumferential weakening line 6 begins to break (see FIG. 4).
[0027]
When the longitudinal weakening line 7 starts to break, the rotational force acting on the lid body 14 has one end portion of the breaking hole 5 facing the one end portion of the hinge 10 in the extending direction of the peripheral weakening line 6 as a fulcrum. Therefore, a strong pulling force is applied to the other end portion of the breaking hole 5 due to the lever action, so that a strong operating force is required to break the weakening lines 6 and 7. Absent.
[0028]
FIGS. 5 to 7 show a second embodiment of the detachment function part, and the fracture protrusion 4 is placed on the top plate 3 and close to the other end of the hinge 18 on the side opposite to the extending direction side of the circumferential weakening line 6. Since the top plate 3 is erected at the location of the thin plate portion through the thin portion, the fracture hole 5 is opened with the same shape and size as the base end of the fracture projection piece 4, and the peripheral weakening line 6 2 is formed along the circumferential direction at the outer peripheral end of the top plate 3 which is also the upper end of the vertical plate 2, and the longitudinal weakening line 7 is formed in a linear manner.
[0029]
In the second embodiment, since the opening of the breaking hole 5 by operating the breaking protrusion 4 is very easy, the breaking protrusion 4 can be downsized. It is suitable for implementation on a hinge cap, and the fracture hole 5 is located near the other end of the hinge 18 so that the fracture hole 5 is brought close to the longitudinal weakening line 7 formed in the assembled cylinder 2. Thus, the initial operating force of the breaking operation of the two weakening lines 6 and 7 is not insufficiently concentrated on the longitudinal weakening line 7.
[0030]
FIGS. 8 to 10 show a third embodiment of the removal functional portion. The breaking protrusion 4 is formed in a plate shape extending along the circumferential direction over the entire width range of the hinge 18 and this breaking portion is shown. The front side of the projecting piece 4, that is, the base end edge opposite to the hinge 18, and between the base end edges on both sides and the top plate 3 are formed into a thin structure that is easy to break, thereby forming the breaking hole 5 in a half-cut shape. The two weakening lines 6 and 7 have the same configuration as in the first embodiment.
[0031]
In the third embodiment, since the breaking hole 5 is opened simply by pulling the breaking protrusion 4 toward the hinge 18 side, the opening of the breaking hole 5 is very easy, and the breaking protrusion 4 is broken. Without being separated, the hinge cap can be separated as an integral part while being attached to the cap body 1.
[0032]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
In the first invention, by opening the break hole, it is possible to easily break the two weakened lines, and then to grasp the lid in an open position to break both broken lines. Both broken lines can be easily and quickly broken.
[0033]
Since the rupture protrusion only opens the rupture hole, it is not always necessary to have a structure that can be strongly picked with a fingertip, and can be made sufficiently small, so it is also suitable for a small hinge cap. Can be implemented.
[0034]
Breaking the circumferential weakening line by grasping the lid will cause the assembled cylinder to deform in the diameter-expanding direction. Therefore, breaking the circumferential weakening line will greatly weaken the assembly of the assembled cylinder to the housing mouth tube. Therefore, by adding a pulling operation to the breaking operation of the circumferential weakening line, the breaking of the circumferential weakening line and the separation of the hinge cap can be easily achieved by a series of operations.
[0035]
In the second invention, a sufficiently large breaking hole can be opened regardless of the size of the breaking protrusion, so that the operation force of the lid effectively acts as the breaking force of both weakening lines. This makes it possible to break both weakening lines very easily.
[0036]
In the third aspect of the invention, it is very easy to open the breaking hole by operating the breaking protrusion, and the breaking hole is opposed to the other end of the hinge, so that the operation force from the lid is reduced. Thus, it is possible to effectively act on the fracture hole, and thus a reliable fracture of both weakening lines can be obtained.
[0037]
In the fourth aspect of the invention, the break hole can be opened easily and reliably, and the hinge cap can be separated with the integral structure, so that a good separation state can be obtained.
[0038]
In the fifth aspect of the invention, the longitudinal weakening line can be easily and reliably broken by the rotational displacement operation of the lid, so that the separation process by operating the lid can be achieved easily and reliably. Can do.
[Brief description of the drawings]
FIG. 1 is an overall longitudinal side view of a closed posture according to a first embodiment of the present invention.
2 is an overall perspective view of the embodiment shown in FIG. 1 in an open posture as seen from slightly behind.
FIG. 3 is an overall perspective view of the opening posture showing the opening state of the fracture hole in the embodiment shown in FIG. 1;
4 is an overall perspective view showing a state where both weakened lines are broken in the embodiment shown in FIG. 1; FIG.
FIG. 5 is an overall perspective view of the second embodiment of the present invention in an open posture as seen from a slightly rear side.
6 is an overall perspective view of the opening posture showing the opening state of the fracture hole in the embodiment shown in FIG.
7 is an overall perspective view showing a state where both weakening lines are broken in the embodiment shown in FIG. 5; FIG.
FIG. 8 is an overall perspective view of the third embodiment of the present invention in an open posture as seen from slightly rearward.
9 is an overall perspective view of the opening posture showing the opening state of the fracture hole in the embodiment shown in FIG.
10 is an overall perspective view showing a state in which both weakening lines are broken in the embodiment shown in FIG. 8. FIG.
[Explanation of symbols]
1; cap body 2; assembled cylinder 3; top plate 4; fracture protrusion 4a; fracture wall piece 5; fracture hole 6; circumferential weakening line 7; longitudinal weakening line 8; fitting step 9; Cut wall groove 12; Removal wall 13; Pull ring 14; Lid 15; Peripheral wall 16; Top wall 17; Plug piece 18; Hinge 19;

Claims (4)

A hinge cap in which a cap body (1) and a lid (14) are connected,
The cap body (1) includes an assembly cylinder (2) assembled to the outer periphery of the housing mouth cylinder (19), and a top plate (3) connected to the upper end of the assembly cylinder (2). The lid (14) is connected to the rear end of the cylinder (2) via a hinge (18),
In the vicinity of the hinge (18), a longitudinal weakening line (7) extending over the entire height range of the assembled cylinder (2) and a circumferential weakening line (6) extending in the circumferential direction of the assembled cylinder (2) are provided. In the synthetic resin hinge cap having the lid (14), the longitudinal weakening line (7) and the peripheral weakening line (6) are broken and removed from the casing mouthpiece (19).
On the top plate (3), there is a breaking hole (5) that stands up so that the breaking projection (4) can be pulled up and opens the top plate (3) up and down by pulling up the breaking projection (4). The hinge opened in opposition to the vicinity of the hinge (18), and the peripheral edge of the opened fracture hole (5) is continuous with the front longitudinal weakening line (7) and the peripheral weakening line (6) cap. On the top plate (3) , a thin broken wall line (4a) extending over substantially the entire width range of the hinge (18) is defined by a thin broken line that is easily broken, and one end of the upper surface of the broken wall piece (4a) is formed. The hinge cap according to claim 1 , further comprising a breaking protrusion (4), wherein the breaking hole (5) is a hole formed by removing the breaking wall piece (4 a) from the top plate (3) . The hinge cap according to claim 1, wherein a thin break line that is easy to break is provided along the base of the break protrusion (4) to form the break hole (5) . Any one of Claims 1-3 which connected the end of the longitudinal weakening line (7) to the edge part of this breaking hole (5) on the opposite side to the direction side where a circumferential weakening line (6) extends from a breaking hole (5). The hinge cap according to claim 1.

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