JP2018131247A - Lid structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide lid structure which can lengthen a length of a bent portion in the length direction of a rubber plate so as to be able to push an opened and closed lid in the opening direction by wholeness of the rubber plate while a shape of the rubber plate that pushes the opened and closed lid in the opening direction becomes a simple shape, so that opening of the opened and closed lid can be performed smoothly without occurring swelling of a pivot portion in a storage box.SOLUTION: A inclination bent portion 27 which is along the direction toward the center side of a lateral bent portion 25 is provided in a projection region portion 21 made of a rubber plate 18 of opened and closed lid pushing means 16 in a state that the width direction C of the bent rubber plate at the time of closing of the opened and closed lid inclines toward the longitudinal direction A of a pivot portion, but a width direction B of the bent rubber plate in the lateral bent portion 25 of the center of the rubber plate is parallel.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a lid structure that can be configured in a storage box or the like having a take-out port for taking out stored items, and has an open / close lid that covers the take-out port.

  Conventionally, there are many storage boxes in which flexible wet bags can be taken out one by one. In this type of storage box, the take-out opening is covered with an opening / closing lid, and the wet tissue is prevented from drying by covering the take-out opening of the storage box. In order to simplify the opening / closing operation of the opening / closing lid, there has been devised to provide an opening / closing lid urging means for always urging the opening / closing lid in the opening direction.

  For example, in Patent Document 1, a rubber plate, which is an elastic member that has flexibility and generates a restoring force when bent, is formed into a strip shape, and the rubber plate is configured as a top surface of a storage box and is provided with the above-described extraction port. Is attached to the lid body side where the opening is opened, and the free end of the rubber plate is in contact with the opening / closing lid, thereby providing an opening / closing lid biasing means. It is also shown that the rubber plate has a cross-sectional shape in a direction orthogonal to the longitudinal direction of the rubber plate, which is substantially arc-shaped, and has an overall bowl shape extending in the longitudinal direction.

  Moreover, in patent document 2, when attaching from the top | upper surface side (lid body side) of a storage box to an opening-and-closing lid in the state which had a substantially U-shaped curve in the rubber plate longitudinal direction central position, and closing an opening-and-closing lid, The fold direction of the bent part is the opening / closing lid at each of the three positions arranged in the order of the rubber plate mounting position on the opening / closing lid side, the rubber plate longitudinal center position, and the rubber plate mounting position on the lid main body side. It is designed to bend and deform along the pivotal direction, and it is shown that it is bent and deformed by repeating the S-shape when viewed from the side, and is substantially C-shaped at the center position in the longitudinal direction of the rubber plate. A device has been shown in which a rounded and deformed portion is accommodated in a recess on the lid body side.

JP 2003-095301 A JP 2011-168341 A

  By the way, the packaging box provided with the opening / closing lid urging means is used with a wet tissue in a bag inside, and the opening / closing lid is closed when being displayed as a wet tissue product in a general retail store. It is a form. Further, since the purchaser of the product also opens the opening / closing lid and takes out the wet tissue only when necessary, the state in which the opening / closing lid is closed after the purchase of the product is increased.

  As described above, since the goods to be stored are used occasionally, the actual condition is that the state where the open / close lid is closed extends for a long time. Therefore, when the opening / closing lid biasing means has a configuration in which the rubber plate simply bends when the opening / closing lid is closed by making the rubber plate into a strip shape, the bent portion of the rubber plate is quickly folded. If the storage box is used for a long time, the restoring force at the bent part of the rubber plate disappears, and the longer the storage box is used, the more difficult it is to open the lid smoothly. .

  As a countermeasure, it is conceivable to increase the restoring force of the rubber plate by increasing the thickness of the rubber plate or using a rubber material made of a material having a high rubber hardness. However, if the restoring force is increased, the repulsive force (restoring force) when bent will raise the pivot of the lid, and the pivot of the lid will rise and damage the product form. Occurs.

  Of course, the fact that the pivot of the opening / closing lid rises and damages the product form is a problem that may occur even after the purchaser purchases the product.

  In addition, the opening / closing lid biasing means that is bent and deformed at a number of locations aligned in the longitudinal direction of the rubber plate so as to repeat the S-shape described above makes the rubber plate longer in one direction and repeatedly folds the S-shape. In this way, bending is obtained in a number of places in order in the length direction of the rubber plate, and stress is distributed to the loop of each bent portion so as not to cause folding due to stress concentration.

  That is, if the total length of the bent portions is increased, the merit of making it difficult to crease is increased. However, because the shape is such that the rubber plate is bent at a number of locations in order in the length direction of the rubber plate, when assembling the storage box, the work of attaching the long rubber plate in one direction becomes very complicated. There is a problem of end.

  Therefore, in view of the above circumstances, the present invention makes the shape of the rubber plate itself simple, but the fold line extends along the longitudinal direction of the pivotal portion of the stress concentration portion due to closing of the opening / closing lid, that is, the portion where the restoring force is increased. The problem is to disperse not only in the part but also in many parts of the rubber plate, increase the length of the bent part in the length direction of the rubber plate, and urge the open / close lid in the opening direction with the whole rubber plate It is an object of the present invention to provide a storage box in which the opening / closing lid can be opened smoothly without causing the pivoting portion of the storage box to rise.

(Invention of Claim 1)
The present invention has been made in view of the above problems, and includes a lid body having a take-out opening and an open / close lid that covers the take-out opening so as to be openable and closable. An opening / closing lid is rotatably attached to the lid body, and the opening / closing lid is always attached in the opening direction between the lid body and the opening / closing lid. In the lid structure provided with the opening / closing lid biasing means for biasing,
The open / close lid biasing means is an elastic deformation in which a rubber plate as an elastic member is projected from the pivot side portion of the lid body toward the open / close lid side, and the protruding tip is in contact with the pivot side portion of the open / close lid. With a possible overhang area,
The overhanging region portion is formed by bending a rubber plate with a substantially arc-shaped cross-sectional shape in the longitudinal direction of the pivot portion,
In the overhang area, between the lid body side part and the opening / closing lid side part in contact with the opening / closing lid, the rubber plate is bent in the width direction when the opening / closing lid is closed. Part is located,
The rubber plate bending width direction when the lid is closed is different from the rubber plate bending width direction at the lateral bending portion with respect to the longitudinal direction of the pivot portion on both side portions of the lid body side portion in the overhang region portion. The lid structure is characterized in that the inclined bent portion, which is inclined and is directed to the center side of the laterally bent portion, is provided to solve the above-mentioned problems.

(Invention of Claim 2)
In the present invention, it is preferable that a continuous bent portion where the horizontal bent portion and the inclined bent portion are continuous is located between the horizontal bent portion and the inclined bent portion.

(Invention of Claim 3)
In the present invention, it is preferable that the opening / closing lid biasing means has a rubber plate attachment for attaching a rubber plate to the lid body.

(Invention of Claim 4)
Furthermore, the rubber plate mounting tool can include an arc-shaped forming portion that bends the rubber plate so that the cross-sectional shape in the longitudinal direction of the pivot portion is substantially arc-shaped.

(Invention of Claim 5)
In the present invention, it is preferable that the overhang region is tapered toward the tip of the overhang.

(Effect of the invention of claim 1)
According to the first aspect of the present invention, when the opening / closing lid is closed, a plurality of portions of the laterally bent portion and the inclined bent portion of the overhang region portion in the opening / closing lid biasing means are bent, and the restoring force at each of them (Repulsive force) is combined to urge the open / close lid in the opening direction. Compared to the configuration in which the open / close lid is urged in the opening direction by the restoring force of only the laterally bent portion, stress is applied to the rubber plate of each bent portion. Concentration no longer occurs.

  As a result, there is no crease between the laterally bent portion and the inclined bent portion, and an excellent effect is obtained in that the force for urging the opening / closing lid in the opening direction can be maintained for a long period of time.

(Effect of the invention of claim 2)
According to the second aspect of the present invention, the total length of the bent portions in the protruding direction of the protruding region portion becomes long, and it becomes difficult for the rubber plate to be creased so that the loss of restoring force can be suppressed.

(Effect of the invention of claim 3)
According to the invention of claim 3, there is an effect that the opening / closing lid urging means can easily arrange the rubber plate between the lid body and the opening / closing lid.

(Effect of the invention of claim 4)
According to the invention of claim 4, the rubber plate itself can be a flat plate, and there is an effect that the opening / closing lid urging means can be formed at a low cost. Furthermore, since the rubber plate mounting tool bends the rubber plate into a substantially arc shape, the bent overhang region can be easily formed.

(Effect of the invention of claim 5)
According to the fifth aspect of the present invention, since the overhang region portion formed by overhanging the rubber plate is provided in a shape that tapers toward the tip, it is added to the open / close lid when the open open / close lid is returned in the closing direction. The biasing force from the open / close lid biasing means is small, and the wide open / close lid can be easily moved in the closing direction with a small force.

It is explanatory drawing which shows an example of the storage box which has a lid structure of this invention, and shows the state which the opening-and-closing lid | cover opened. It is explanatory drawing which shows a storage box in a cross section. FIG. 4 shows an opening / closing lid biasing means in the lid structure, wherein (a) is an explanatory view showing a state in which a rubber plate is inserted into a rubber plate fixture of the opening / closing lid biasing means, and (b) is an opening / closing lid biasing means. Explanatory drawing which shows the state attached to a lid main body, (c) is explanatory drawing which shows the pivotal support part of the lid main body to which the opening-and-closing lid urging means was attached. It is explanatory drawing shown in the state which looked at the opening-and-closing lid urging means from the upper part. It is explanatory drawing which shows the state by which the overhang | projection area | region part of the opening-and-closing lid urging means is bent.

  Next, the present invention will be described in detail based on the embodiment shown in FIGS. In the figure, reference numeral 1 denotes a storage box. The storage box 1 has an opening 2 in the center, and a box-shaped lid body 4 having a lower opening in which a peripheral wall 3 extending downward in four directions is integrally connected. And a bottom plate 5 that is connected to the lower end of the peripheral wall 3 of the lid body 4 and covers the lower surface of the lid body 4.

  In the present embodiment, in the storage box 1, a wet tissue product a in a bag is accommodated in a storage space composed of a lid body 4 and a bottom plate 5 as shown in FIG. One by one is taken out from the take-out port 2 and used. In this embodiment, the article to be stored is described as a wet tissue product in a bag. However, the product is not limited to a wet tissue in a bag as long as the product is taken out one by one through the take-out port 2.

  In addition, as shown in FIG. 1, the storage box 1 has an open / close lid 6 pivotally attached to a portion of the lid main body 4 at the center of one long side and on the side of the outlet 2. A portion where the opening / closing lid 6 is pivotally attached is a pivot portion 15 provided between the lid main body 4 and the opening / closing lid 6, and the opening / closing lid 6 can be rotated on the lid body 4 via the pivot portion 15. By being connected, the take-out port 2 is covered with an open / close lid 6 so that the open / close lid 6 can be opened and closed. The lid 6 constitutes the lid structure 7 of the present invention.

(Film body)
In the present embodiment, in the storage box 1, the take-out port 2 in the lid structure 7 is devised, and the take-out port 2 opened at the center of the top surface of the lid body 4 has elasticity. A film body 8 is attached. The film body 8 is made of a soft material such as polyethylene resin or silicone rubber, and is formed in a concave shape that protrudes downward (toward the bottom plate 5 side) so that the center is the bottom, and the periphery and the center. A connecting plate 9 is formed in the intermediate region between the connecting plate 9 and a plurality of substantially Z-shaped slits extending in the circumferential direction. The connecting plate 9 extends from the periphery to the center. It is provided so that the center of the film body 8 can be easily pushed down by stretching.

  Further, a through hole 10 is opened at the center of the film body 8. For this reason, even when the wet tissue contained therein is small and positioned on the bottom plate 5 side, the film body 8 is inserted as shown by the arrows in FIG. By pushing down the center of the film, the opening between the connecting plates 9 and the extension and deformation of the connecting plate 9 lower the central part of the film body where the through holes 10 are located, so that the reduced wet tissue can be reliably picked out through the through holes 10. To be able to.

  The film body 8 has a concave shape that protrudes downward as described above, and the wet tissue that stops at the position of the through hole 10 in the middle of the drawing between the closed opening / closing lid 6 and the film body 8 is externally provided. A concealment space 11 is formed which is concealed without being protruded or bitten around the opening / closing lid.

  In addition, a groove 12 is formed around the periphery of the film body 8, and a jetty 13 provided on the surface of the lid body 4 side of the opening / closing lid 6 that covers the outlet 2 is fitted in the groove 12. The gap between the lid main body 4 and the closed opening / closing lid 6 is closed by the film body 8 by fitting the jetty 13 into the groove 12 so that drying in the storage space does not occur. .

(Lid structure)
In the lid structure 7 including the lid body 4 and the opening / closing lid 6, there is provided a locking operation portion 14 that can be detachably locked to the free end side of the closed opening / closing lid 6 and can be released by pushing. The locking operation portion 14 is provided on the side opposite to the pivot portion 15 to which the opening / closing lid 6 is rotatably connected between the lid body 4 and the opening / closing lid 6.

(Opening / closing lid biasing means)
Further, in the lid structure 7, the portion 4 a on the side opposite to the locking operation portion 14, that is, on the pivot portion 15 side and on the pivot portion 15 side of the lid body 4 and the pivot portion 15 side of the opening / closing lid 6. An opening / closing lid urging means 16 for urging the opening / closing lid 6 in the opening direction is located between the portion 6a. See Figure 1

  As shown in FIGS. 3A to 3C, the opening / closing lid urging means 16 is attached to the rubber plate attachment 17 attached to the portion of the lid main body 4 on the pivot portion 15 side and the rubber plate attachment 17. The rubber plate 18 is bent so that a cross section in the width direction of the rubber plate, which will be described later, becomes a substantially arc shape.

(Rubber plate fitting)
The rubber plate attachment 17 is formed from, for example, a synthetic resin material, and is attached and disposed in the recess 19 on the pivot portion 15 side of the lid body 4 as described above. Further, the rubber plate fixture 17 is provided with an arc-shaped forming portion 20 that bends the rubber plate 18 inserted from the rear surface of the rubber plate fixture 17 itself with the longitudinal cross-sectional shape of the pivot 15 being substantially arc-shaped. Yes.

  The arc-shaped forming portion 20 has an arch 20a projecting upward on the fixture upper plate portion and a standing rib 20b raised from the fixture lower plate portion so as to approach the lower surface of the arch 20a. The rubber plate 18 is sandwiched between the arch 20a and the standing rib 20b so that the center in the width direction of the rubber plate is lifted while the rear end side portion of the inserted rubber plate 18 is held by the fixture side portion. 18 is bent with the cross-sectional shape being substantially arc-shaped.

(Rubber board)
As shown in FIG. 3 (a), the rubber plate 18 is inserted from the rear surface of the rubber plate fixture 17, protrudes in front of the rubber plate fixture 17, and is abbreviated in a plan view that tapers in the protruding direction. It is provided in a trapezoidal shape. As shown in FIG. 1 and FIG. 3 (c), the rubber plate fixture 17 projects from the rubber plate fixture 17 toward the pivotal portion 15 side portion 6 a while being supported by the rubber plate fixture 17. .

  The opening / closing lid biasing means 16 is an elastically deformable overhanging region in which the protruding end is brought into contact with the portion of the opening / closing lid 6 on the side of the pivotal support 15 by protruding the rubber plate 18 of the elastic member from the rubber plate mounting tool 17. The unit 21 is provided. As described above, since the rubber plate 18 is bent by the rubber plate fixture 17 with the longitudinal cross-sectional shape of the pivot portion 15 being substantially arcuate, the overhanging region portion 21 is provided in the longitudinal direction of the pivot portion 15. The cross-sectional shape is curved with a substantially arc shape.

  The rubber plate 18 used for the opening / closing lid urging means 16 is an elastic member formed by mixing high tear silicone rubber and general-purpose silicone rubber. High tear silicone rubber has high strength characteristics, and general-purpose silicone rubber has easy bending characteristics. The rubber plate 18 is formed by mixing high tear silicone rubber and general-purpose silicone rubber, but is not limited thereto. For example, it is possible to obtain a rubber plate with one high tearable silicone rubber, or obtain a rubber plate with the other general-purpose silicone rubber.

  It should be noted that the overhanging region portion 21 is formed by bending a rubber plate 18, which is a flat plate-like elastic member, by bending the rubber plate attachment 17 so that the cross-sectional shape in the longitudinal direction (rubber plate width direction) of the pivot portion 15 is substantially an arc shape. The rubber plate 18 has at least a restoring force to return to a flat plate state as a whole.

  For this reason, the cross-sectional shape on the protruding tip side may be an arc-shaped bending degree close to a flat plate as compared with the arc-shaped bending on the rubber plate attachment 17 side. Of course, in the state where the portion on the projecting front end side is in contact with the portion on the pivotal support portion 15 side of the opening / closing lid 6, the cross-sectional shape of the projecting front end side portion is deformed into a substantially flat plate shape.

(Overhang area)
As shown in FIG. 4, in the projecting region portion 21 having a substantially arc-shaped cross section, a portion corresponding to the portion 4 a on the pivot portion 15 side of the lid body 4, that is, a portion 22 on the rubber plate attachment 17 side, A laterally bent portion 25 is located in an intermediate portion 24 between a protruding tip side portion (a portion on the opening / closing lid 6 side) 23 that is in contact with the portion 6 a on the pivotal support portion 15 side of the opening / closing lid 6.

(Horizontal bend)
FIG. 5 shows a state in which the opening / closing lid 6 is closed and the overhanging region portion 21 (rubber plate 18) of the opening / closing lid biasing means 16 is bent. The laterally bent portion 25 is a portion that is bent and deformed when the opening / closing lid 6 is closed, and a restoring force is generated. The rubber plate bending width direction B when the opening / closing lid 6 is closed is the longitudinal direction A of the pivot portion 15. It is the part that will be along. (See Figure 4)

(Inclined bend)
In the overhang region 21, inclined bent portions 27 are located on both side portions 26 of the portion 22 on the rubber plate mounting tool 17 side. Each of the inclined bent portions 27 has a rubber plate bent width direction C when the opening / closing lid 6 is closed at the position of the inclined bent portion 27, and a rubber plate bent width direction B (pivot support portion) at the horizontal bent portion 25. 13 is a direction that is inclined with respect to the longitudinal direction of the pivot portion 15 and is directed toward the center side of the laterally bent portion 25. (See Figs. 4 and 5)

  In this manner, in the overhang region 21, the inclined bent portion 27 and the lateral bent portion 25 are arranged in this order from the rubber plate fixture side portion 22 to the overhang distal end portion 23, so that the opening / closing lid 6 is closed. In some cases, there is an effect that stress concentration due to the repulsive force of the rubber plate itself hardly occurs in the laterally bent portion 25.

(Continuous bend)
Further, the laterally bent portion 25 and the inclined bent portion 27 in the overhang region 21 are connected by a single rubber plate 18, and a laterally bent portion is provided between the laterally bent portion 25 and the inclined bent portion 27. The continuous bend portion 28 in which 25 and the inclined bend portion 27 are continuous is located.

  The continuous bent portion 28 is not a portion that is bent by itself when the open / close lid 6 is closed, but the horizontal bent portion 25 and the inclined bent portion 27 are made continuous, and the horizontal bent portion 25, the continuous bent portion 28, and the inclined bent portion 27 are continuous. Thus, the cross section along the projecting direction is bent so as to form one substantially arc shape.

  Accordingly, the total length of the bent portions in the longitudinal direction of the rubber plate 18 (the protruding direction of the protruding region portion) becomes longer. From this point as well, the stress concentration when the open / close lid is closed is suppressed, There is an effect that the inclined bent portion 27 and the continuous bent portion 28 are not creased.

(Vertical bend)
Further, in the portion 22 on the rubber plate attachment side of the overhanging region portion 21, as shown in FIG. 4, a vertical bent portion 29 is provided between the left and right inclined bent portions 27.

  The vertical bent portion 29 itself has a substantially arc shape in which the cross-sectional shape in the rubber plate width direction is convex upward by the arc-shaped forming portion 20 of the rubber plate fixture 17, and the rubber plate bent width direction D is the pivot. This is a direction orthogonal to the longitudinal direction of the support portion (that is, the rubber plate bending width direction B of the lateral bent portion 25), and the rubber plate bent width direction D is the portion facing the center of the lateral bent portion 25.

  In the inclined bent portion 27, when the opening / closing lid 6 is closed, the cross-sectional shape in the direction perpendicular to the bent width direction C of the rubber plate is bent downward so that it is bent vertically. Naturally, the bent portion 29 has a substantially arc-shaped cross section in a direction perpendicular to the bent width direction D of the rubber plate. Therefore, when the open / close lid 6 is closed, the bent portion 29 is on both sides of the bent portion 29. The stress generated in each of the inclined bent portions 27 is absorbed to some extent by the deformation of the vertical bent portion 29 in the rubber plate width direction, and the stress concentration in the inclined bent portion 27 and the stress concentration in the continuous bent portion 28 can be suppressed. It will be possible.

DESCRIPTION OF SYMBOLS 1 ... Storage box 2 ... Outlet 4 ... Lid main body 4a ... The part by the side of the pivot of the lid main body 6 ... Opening / closing lid 6a ... Part by the side of the pivot of the opening / closing lid 7 ... Lid structure 8 ... Film body 15 ... Pivot 16 ...... Opening / closing lid urging means 17 ... Rubber plate fixture 18 ... Rubber plate 20 ... Arc-shaped forming portion 21 ... Overhang region portion 24 ... Intermediate portion 25 ... Lateral bending portion 27 ... Inclined bending portion 28 ... Continuous bending portion 29 ... Vertical bending Part

Claims (5)

A lid body having a take-out opening and an open / close lid that covers the take-out opening so as to be openable and closable, and the lid body and the open / close lid are connected via a pivotal support provided between the lid body and the open / close lid. A lid structure in which an opening / closing lid is rotatably attached to the lid body, and an opening / closing lid biasing means is provided between the lid body and the opening / closing lid to constantly bias the opening / closing lid in the opening direction. In the body,
The open / close lid biasing means is an elastic deformation in which a rubber plate as an elastic member is projected from the pivot side portion of the lid body toward the open / close lid side, and the protruding tip is in contact with the pivot side portion of the open / close lid. With a possible overhang area,
The overhanging region portion is formed by bending a rubber plate with a substantially arc-shaped cross-sectional shape in the longitudinal direction of the pivot portion,
In the overhang area, between the lid body side part and the opening / closing lid side part in contact with the opening / closing lid, the rubber plate is bent in the width direction when the opening / closing lid is closed. Part is located,
The rubber plate bending width direction when the lid is closed is different from the rubber plate bending width direction at the lateral bending portion with respect to the longitudinal direction of the pivot portion on both side portions of the lid body side portion in the overhang region portion. The lid structure is characterized in that an inclined bent portion, which is a direction inclined toward the center side of the laterally bent portion, is located.   2. The lid structure according to claim 1, wherein a continuous bent portion in which the horizontal bent portion and the inclined bent portion are continuous is located between the horizontal bent portion and the inclined bent portion.   The lid structure according to claim 1 or 2, wherein the opening / closing lid biasing means includes a rubber plate attachment for attaching a rubber plate to the lid body.   The lid structure according to claim 3, wherein the rubber plate fixture includes an arc-shaped forming portion that bends the rubber plate so that the cross-sectional shape in the longitudinal direction of the pivot portion is substantially arc-shaped.   The lid structure according to any one of claims 1 to 4, wherein the projecting region portion has a shape tapered toward the projecting tip.

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