JP3645515B2 - Lunch box - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lunch box, and in particular, in a lunch box provided with rotatable flaps on both sides of a top plate to be crowned on the upper part of the container body, the flaps are detachably fitted to the container body. The present invention relates to an improvement in the fitting means.
[0002]
[Prior art]
Conventionally, various types of lunch boxes have been provided, but a stacked type lunch box composed of a container body with an upper opening and a top plate to be crowned on the top of the container body has gained popularity. ing.
[0003]
In such a stacked type lunch box, with the sub-container and tray stacked on the container body, the top plate is placed on the top layer, and the stack is formed by flaps pivoted on both sides of the top plate. It is configured so that it can be fixed integrally.
[0004]
Specifically, a force fitting type fitting means configured to be detachably fitted to each other is configured by a fitting piece provided on the inner side of the flap and a fitted portion provided on the outer side of the opening edge of the container body. Yes. Therefore, when a predetermined sub-container, tray, etc. are stacked on the container body and the top plate is placed on the uppermost layer, the pair of left and right flaps are rotated from top to bottom, and the fitting means is snapped. Fit and fix the whole lunch box in a stacked state.
[0005]
Such fitting means is also implemented in a lunch box that is not a laminated type consisting of a single container of the container body, and in this case, the top plate is used as a lid for covering the upper opening of the container body. The fitting means is used as a lid closing mechanism.
[0006]
[Problems to be solved by the invention]
Since the fitting means provided between the top plate flap and the container body is based on the above-mentioned forced fitting structure, it is fatigued by repeated use, and the fitting force gradually weakens. May be unintentionally released during carrying, the top plate may fall off, and the container body may be opened.
[0007]
Further, since the container body is usually formed of a flexible synthetic resin, if the food is packed too much, it is easy to be distorted as a whole, which may cause poor fitting of the fitting means.
[0008]
[Means for Solving the Problems]
The present invention solves the above-mentioned problems, improves the conventional fitting means, or provides a lunch box provided with a lock mechanism in addition to the conventional fitting means.
[0009]
Accordingly, the first means of the present invention is composed of a container body having an upper opening shape and a top plate that is crowned on the top of the container body, and is rotated vertically on both sides of the top plate. A flexible flap is pivotally connected, and a fitting means configured to be detachably fitted by a fitting means provided inside the flap and a fitted means provided outside the opening edge of the container body is configured. In the lunch box, the fitting means is slidably fitted to the fitted means via a slider provided so as to be slidable in the vertical direction with respect to the flap via a slide mechanism. and fitting pieces from sliding hole of Rutotomoni flaps provided on the inner side of the slider protruding inwardly so as to be worn, it is provided on the outside of the slider so as to enable sliding operation of the slider from the outside of the flap It was constructed locking means comprising a operating unit formed The slide mechanism, a guide plate formed on the flap and another body is configured to have secured to the outer surface of the flap, the slider into the guide path formed between the inner and outer surfaces of the flaps of the guide plates The flange-shaped slide portion is slidably accommodated, and the operation portion of the slider protrudes outward from the window hole of the guide plate .
[0010]
Further, the second means of the present invention is composed of an upper opening-shaped container body and a top plate that is crowned on the upper part of the container body, and pivots vertically on both sides of the top plate. A flexible flap is pivotally connected, and a fitting means that is detachably fitted by a fitting means provided inside the flap and a fitted means provided outside the opening edge of the container body 1 is configured. In the lunch box, the fitting means includes a first fitting means and a second fitting means, and the first fitting means is fitted when the flap is turned downward. The first fitting piece provided on the inner side of the flap so as to be forcibly fitted to the coupling means, and the second fitting means includes a slider provided slidably in the vertical direction with respect to the flap, The slider is detachably fitted to the fitted means through sliding of the slider. There a second fitting pieces provided on the inner side, the slider point formed by constituting the locking means comprising a manipulation portion provided on the outside of the slider so as to enable sliding operation from the outside of the flap.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
[0012]
(overall structure)
FIG. 1 exemplifies a stacked type lunch box, and in order from the bottom, a container body 1 with an upper opening, a dish-shaped inner lid 2 with a flange that seals the opening of the container body 1, and a middle A sub-container 3 having an upper opening in which the bottom is fitted to the dish surface of the lid 2; a tray 6 in which the upper opening of the sub-container 3 is sealed and a storage chamber 5 for tableware such as a spoon or chopsticks is formed on the upper surface; A top plate body 7 formed in a downward dish shape into which 6 is fitted is laminated and disposed. Therefore, in the case of the illustrated embodiment, the top plate 7 is indirectly covered with the upper part of the container body 1 via the laminated body. However, as described above, the lunch box of the present invention is laminated. The top plate 7 may be directly crowned on the upper opening of the container body 1 made of a single container.
[0013]
(Fitting means)
The top plate 7 is pivotally connected with flaps 8, 8 that are rotatable in the vertical direction on both sides, and a fitting means is provided between the flaps 8, 8 and the container body 1. Each flap 8 is disposed coaxially at both axial ends of a shaft portion 7a projecting along both side edges of the top plate body 7, and is paired with a pair of boss portions 8a, 8a rotatably supported. , And a plate-like portion 8b extended with a width over the boss portions 8a and 8a. On the other hand, the container main body 1 is provided with ribs 1a projecting outward from both side edges of the opening edge, thereby constituting a fitted portion into which the flap 8 is fitted.
[0014]
Therefore, in the illustrated embodiment, the fitting means provided between the flaps 8 and 8 and the container body 1 are basically the same as the first fitting means 9 having the same structure as the conventional one, and the present invention. It is comprised by the 2nd fitting means 10 made into the characteristic structure.
[0015]
(First fitting means)
The first fitting means 9 is constituted by a first fitted portion 9 a constituted by the vicinity of both ends of the rib 1 a of the container body 1 and a first fitting piece 9 b provided inside the flap 8. The force fitting type male / female fitting structure in which the claw of the first fitting piece 9b is fitted into the first fitted portion 9a formed in the downward groove shape is configured. Accordingly, when the flap 8 is rotated downward and pressed against the side portion of the container body 1, the first fitting piece 9b snaps into the first fitted portion 9a. On the contrary, when the flap 8 is pulled away from the side portion of the container body 1, the first fitting piece 9b is detached from the first fitted portion 9a.
[0016]
A pair of first fitting means 9 including a first fitting piece 9b and a first fitted portion 9a is provided on both sides of the central portion of each flap 8. Further, an auxiliary fitting piece 9B having a similar configuration is provided above the fitting piece 9b so that the flap 8 can be locked when not stacked as will be described later.
[0017]
(Second fitting means)
In addition to the first fitting means 9 as described above, a second fitting means 10 is provided between the flap 8 and the container body 1, and the second fitting means 10 is the container body 1. The second fitted portion 10a is constituted by the substantially central portion of the rib 1a, and the lock means 11 is detachably fitted to the second fitted portion 10a.
[0018]
The locking means 11 is composed of a slider 12 provided so as to be slidable in the vertical direction with respect to the flap 8. As shown in FIG. 5, a second fitting piece 13 is provided inside the slider 12. The operation unit 14 is formed outside. The second fitting piece 13 constitutes an upward claw piece that is detachably fitted to the second fitted portion 10a when the slider 12 is slid upward. Enables the user to perform such a sliding operation of the slider 12 from the outside of the flap 8 with a fingertip.
[0019]
(First embodiment of locking means)
In the first embodiment shown in FIGS. 2 to 6, a guide plate 15 is provided to constitute a slide mechanism of the slider 12. In the case of the illustrated example, the guide plate 15 is fitted into a recess 16 formed on the outer surface of the flap 8 and is fixed by an adhesive or any other means, and the inner surface of the guide plate 15 and the flap 8 are fixed. A guide path 17 that allows the slider 12 to slide is formed between the outer surface and the outer surface. Therefore, the slider 12 has a flange-like slide portion 18 slidably accommodated in the guide path 17, and the operation portion 14 that protrudes on the outer side of the slider 12 is protruded outward from the window hole 19 of the guide plate 15. The second fitting piece 13 protruding to the inner side of the slider 12 is protruded inward from the sliding hole 20 of the flap 8. Accordingly, the operating portion 14 moves inside the window hole 19 and the second fitting piece 13 moves inside the sliding hole 20 within a predetermined stroke in which the slider 12 slides.
[0020]
As will be described later, the slider 12 is slid to fix and hold the slider 12 in the locked state in which the second fitting piece 13 is fitted to the second fitted portion 10a. Is provided. In the case of the illustrated example, a resilient contact piece 21 that can be elastically deformed is formed by forming a part of the slide portion 18 formed in a flange shape into a notch shape, and the resilient contact piece 21 is formed on the guide edge 17 a of the guide path 17. A projecting portion 22a and a recessed portion 22b are provided between the elastic contact piece 21 and the guide edge 17a so as to be elastically locked to each other when the slider 12 slides to a position requiring positioning and fixing.
[0021]
(Operation of the first embodiment)
According to the configuration of the first embodiment, in the state where the inner lid 2, the sub-container 3 and the tray 6 are laminated on the container body 1, the top plate 7 is laminated on the uppermost layer, and the flaps 8, 8 are directed downward When rotated, as described above, the first fitting piece 9b in the first fitting means 9 is snapped into and fitted into the first fitted portion 9a. At this time, the second fitting means 10 generates a fitting standby state. That is, the slider 12 can be slidable with respect to the flap 8 and is in an arbitrary position, but a standby state in which the slider 12 can always be fitted is ensured. For example, when the slider 12 is in the position slid upward with respect to the flap 8 as shown in FIG. 5A, the flap 8 is rotated as shown in FIG. The second fitting piece 13 comes into contact with the second fitting part 10a when approaching the fitting part 10a, but the upward claw piece of the second fitting piece 13 is an inclined guide surface. Since 13a is formed, the slider 12 is automatically slid downward as indicated by an arrow R in the drawing, and the claw piece is allowed to enter below the second fitted portion 10a. Therefore, as shown by an arrow F in FIG. 5C, when the user slides the slider 12 upward by pushing up the operating portion 14 with a fingertip, the second fitting piece 13 is moved into the second fitting state. It is fitted to the part 10a. In this state, the slider 12 is fixed and held via the positioning and fixing means by the elastic locking of the convex portions 22a and the concave portions 22b described above, so that the second fitting means 10 can be moved freely by sliding downward. The locked state is not locked without accidentally releasing the fitted state.
[0022]
In order to unlock the locking means 11, when the user pushes down the operation unit 14 with a fingertip, the positioning and fixing by the elastic locking of the convex portion 22a and the concave portion 22b is released, and the slider 12 is slid downward. The second fitting piece 13 is disengaged from the second fitted portion 10a, and the locking means 11 is unlocked. Therefore, the user only has to rotate the flaps 8 and 8 against the forcibly fitted state of the first fitting means 9, thereby removing the top plate 7 from the container body 1. it can.
[0023]
By the way, when storing without using the lunch box, as shown in FIG. 6, if the sub-container 3 is installed in the container main body 1, the whole is compact without being bulky. At this time, the upper opening of the container main body 1 is closed by the inner lid 2 while the sub-container 3 is installed, and the tray 6 and the top plate body 7 are laminated on the inner lid 2. In this state, when the flaps 8 and 8 are rotated downward and pressed against the side portion of the container main body 1, the auxiliary fitting piece 9B is snapped into the first fitted portion 9a, and the whole is united. Can be fixed together.
[0024]
(Second embodiment of the locking means)
7 and 8 show a second embodiment of the locking means 11 including the second fitting means 10, and the slider 12 is always spring-biased upwardly against the flap 8. It has. In the case of the illustrated example, a compression spring that pushes up the second fitting piece 13 is employed. For this reason, a receiving piece 24 that receives the spring is provided on the inner surface of the flap 8. According to this embodiment, since the slider 12 is always positioned by being biased upward, it is necessary to provide a positioning and fixing means comprising the convex portion 22a and the concave portion 22b as described with respect to the first embodiment. There is no. Other configurations are the same as those of the first embodiment described above.
[0025]
(Operation of the second embodiment)
According to the configuration of the second embodiment, in the state where the inner lid 2, the sub container 3 and the tray 6 are laminated on the container body 1, the top plate body 7 is laminated on the uppermost layer, and the flaps 8, 8 are directed downward. When it is turned, the first fitting means 9 is snapped and fitted in the same manner as in the first embodiment. And the 2nd fitting means 10 does not require operation by a user's fingertip, but is automatically fitted.
[0026]
That is, the slider 12 is urged upward by the spring 23, but as shown in FIG. 8A, the second fitting piece 13 is fitted to the second fitting piece by rotating the flap 8. When approaching the portion 10a, the inclined guide surface 13a formed on the upward claw piece of the second fitting piece 13 comes into contact with the second fitted portion 10a, and the slider 12 is moved to the spring 23 as shown by the arrow R in the figure. Then, it is automatically slid downward, and the claw piece is allowed to enter below the second fitted portion 10a. As soon as the second fitting piece 13 enters the lower side of the second fitted portion 10a, the slider 12 is slid upward by the spring 23 as shown by an arrow F in FIG. The second fitting piece 13 is fitted to the second fitted portion 10a. In this state, since the slider 12 is fixedly held by the spring 23, the fitted state is not inadvertently released, and locking is performed as the lock unit 11.
[0027]
In order to unlock the locking means 11, when the user presses down the operation unit 14 with a fingertip and slides the slider 12 downward against the spring 23, the second fitting piece 13 is moved to the second covered piece 13. The locking means 11 is unlocked by coming off the fitting portion 10a. Therefore, the user only has to rotate the flaps 8, 8 against the forced fitting state of the first fitting means 9, whereby the top plate 7 is removed from the container body 1. The
[0028]
When the lunch box is stored without using it, the inner lid 2 and the tray are placed against the container body 1 with the sub-container 3 as in the case of the first embodiment described with reference to FIG. In the state where 6 is laminated, the top plate body 7 is placed, and the auxiliary fitting piece 9A of the flaps 8 and 8 may be fitted to the first fitting piece 9a.
[0029]
It goes without saying that the present invention is not limited to the above-described embodiments or examples, and various design changes are possible. In particular, the present invention has described a so-called double lock mechanism using the first fitting means 9 and the second fitting means 10 with respect to the embodiment, but the first fitting means 9 is omitted and the second fitting mechanism is omitted. Only the wearing means 10 may be provided.
[0030]
【The invention's effect】
According to the first aspect of the present invention, the fitting means 10 constituting the lock means 11 is provided instead of or in addition to the conventional forced fitting type fitting means 9, and the fitting is performed. A guide plate 15 formed separately from the flap 8 is fixed to the outer surface of the flap by the slide mechanism of the slider 12 constituting the means 10, and the gap between the inner surface of the guide plate 15 and the outer surface of the flap 8 is fixed. A flange-shaped slide portion 18 of the slider 12 is slidably accommodated in the guide path 17 formed in the above-described manner, and the slider operation portion 14 protrudes outward from the window hole 19 of the guide plate 15. Since the fitting piece 13 can be detachably fitted to the fitted means 10a through sliding, the top plate 7 is accidentally dropped while carrying the lunch box, and the container body 1 is opened. There is no danger There is an effect that the lunch box can be suitably used for a year.
Further, according to the present invention described in claim 2, and in addition to the first fitting means 9 as in the prior art irrational-fit, the second fitting means 10 constituting the locking means 11 is provided so-called Since the double lock mechanism is configured, there is no danger of the top plate 7 accidentally dropping off while carrying the lunch box and opening the container body 1, and the lunch box is preferably used for many years. There is an effect that can be done.
[Brief description of the drawings]
FIG. 1 is a front view showing a partially broken embodiment of an embodiment of the present invention.
FIG. 2 is a perspective view showing a first embodiment of the locking means in an assembled state.
FIG. 3 is a perspective view showing the first embodiment of the locking means in an exploded state.
FIG. 4 is a perspective view showing the first embodiment of the locking means inverted in an exploded state.
5A and 5B show the operation of the locking means according to the first embodiment, wherein FIG. 5A is a cross-sectional view showing a state before the flap is rotated downward, and FIG. 5B is a state where the flap is rotated. Sectional drawing and (C) are sectional drawings which show a locked state.
6A and 6B show the storage state of the lunch box, where FIG. 6A is a front view of the appearance, and FIG.
FIG. 7 is a perspective view showing a second embodiment of the locking means inverted in an exploded state.
8A and 8B show the operation of the locking means according to the first embodiment, wherein FIG. 8A is a cross-sectional view showing a state in which a flap is turned downward, and FIG. 8B is a cross-sectional view showing a locked state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container main body 7 Top plate body 8 Flap 9 First fitting means 9a First to-be-fitted part 9b First fitting piece 10 Second to-fitting means 10a Second to-be-fitted part 11 Locking means 12 Slider 13 Second fitting piece 13a Guide surface 14 Operation portions 22a and 22b Positioning and fixing means 23 Spring

Claims (2)

Consists of a container body (1) with an upper opening and a top plate (7) to be crowned on the top of the container body, and a flap (8) that can be pivoted vertically on both sides of the top plate (7) (8) is pivotally connected to each other by a fitting means provided inside the flap (8) and a fitted means provided outside the opening edge of the container body (1). In a lunch box comprising means,
The fitting means (10) includes a slider (12) that is slidable in a vertical direction with respect to the flap (8) via a slide mechanism , and the cover (10) through the sliding of the slider (12). fitting pieces protruding from the sliding hole (20) inwardly of Rutotomoni flap (8) is provided inside the slider so as to be freely fitted detachably to the fitting means (10a) and (13), slider (12) made to constitute a flap locking means consisting of outer (8) operation section provided on the outside of the slider so as to enable sliding operation (14) (10),
The slide mechanism, the flap (8) and formed separately a guide plate (15) is configured which is fixed to the outer surface of the flap (8), an inner surface and the flap of the guide plate (15) (8 flange-like sliding portion of the slider (12) to (18) and slidably housed in the formed guide path between the outer surface (17) of) the slider from the window opening (19) of the guide plate (15) A lunch box characterized in that the operation portion (14 ) of (12) protrudes outward . Consists of a container body (1) with an upper opening and a top plate (7) to be crowned on the top of the container body, and a flap (8) that can be pivoted vertically on both sides of the top plate (7) (8) is pivotally connected to each other by the fitting means (9b, 13) provided inside the flap (8) and the fitted means (9a, 10a) provided outside the opening edge of the container body (1). In a lunch box comprising a fitting means that is detachably fitted to the box,
The fitting means is composed of a first fitting means (9) and a second fitting means (10),
The first fitting means (9) is a first fitting piece provided inside the flap so as to be forcibly fitted to the fitted means (9a) when the flap (8) is rotated downward. (9b)
The second fitting means (10) includes a slider (12) provided to be slidable in the vertical direction with respect to the flap (8), and the fitted means via sliding of the slider (12). The second fitting piece (13) provided inside the slider so as to be detachably fitted to (10a) and the slider (12) to be slidable from the outside of the flap (8). And a lock means (10) comprising an operating portion (14) provided outside the slider.

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