JP2002347806A - Box having lid plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with any sorting and collection in a case of a product jointly comprising metal parts and synthetic resin parts by using synthetic resin elastic members in place of a metal torsion spring which is usually used as a spring for urging a lid plate, and totally disposing them as the synthetic resin product when disposing a box having the synthetic resin lid plate with the lid plate for opening/closing an opening urged in the lid opening direction and pivotably supported by an opening side part of the box. SOLUTION: A base end is fixed to a part of an inner wall surface of the box 1, a synthetic resin elastic member 41 is provided in the box, a tip of a pressing plate 47 provided on the elastic member is abutted on an inner surface of the base of the lid plate close to a pivotably supported part of the opened lid plate 21, and the elastic member 41 is elastically deformable when closing the lid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a box with a cover plate.

[0002]

2. Description of the Related Art It is widely used that a cover plate attached to a box is urged in a cover opening direction by a metal torsion spring and the cover is automatically opened by operating a push button or the like.

[0003]

The entire box with a cover plate is often formed of a synthetic resin material, but only the spring is made of metal.

Recently, in order to prevent waste from increasing, reuse of waste has been described. For this purpose, it is necessary to separate synthetic resin and metal at the time of disposal. It is not easy to remove these springs, which makes it difficult to reuse such materials.

The present invention is provided so that the cover plate of the box can be urged by an elastic member made of synthetic resin, and can be discarded without separation as a box made of only synthetic resin material containing no metal at the time of disposal. It proposes a box that has been set.

[0006]

As a first means, the lid plate 21 is pivotally attached to the side edge portion of the opening 3 provided on the entire surface of the box by urging outwardly, and the urging force is applied against the urging. Opening 3 above
In a box with a synthetic resin cover plate provided with an engagement means for holding the cover plate 21 closed, a base end portion is fixed to a part of the inner wall surface of the box, and the synthetic resin elastic member 41 is attached to the box. 1, the tip of the pressing plate 47 of the elastic member is brought into contact with the inner surface of the lid plate base portion near the pivot portion of the lid plate in the open state of the lid plate to center on the pivot portion. By closing the cover, the elastic member 41 was made elastically deformable, and the cover member 21 was urged by the elastic member.

[0007] As a second means, the above-mentioned first means is provided, and the elastic member 41 is provided with a first leaf spring 44 obliquely forward from the upper end of the upright plate portion 42 via the first bent portion 43, and First
The second leaf spring 46 is projected upward from the lower end of the leaf spring via the second bent portion 45, and the upper end of the second leaf spring 46 is formed as a backward curved plate portion. The leading end of the plate is formed as a pressing plate 47, and the lower end of the upright plate 42 is fixed to the inner surface of the lower end of the box rear wall, and the upright plate 42 is moved along the inner surface of the box rear wall to the upper portion of the rear wall. Stand up and cover plate
In the open state in which the right and left rear portions of 21 are pivotally attached to the left and right rear portions of the opening 3 formed in the box top wall 2 and the lid plate is erected around the pivoted portion, the opening is lower than the lid plate pivot axis. The pressing plate 47 was brought into contact with the inner surface of the upper cover plate base portion.

As a third means, the first means is provided, the elastic member 41 is formed in a U-shape in a plane, and the first leaf springs 52, 52 are projected forward from both right and left ends of the board 51, and The second leaf spring 56 is erected upward from the middle part of 51, and the upper part of the second leaf spring is bent upward and rearward to form the pressing plate 47. The front ends of the first leaf springs 52, 52 are boxed. The box is fixed to the upper inner surface of the left and right side walls or the inner surfaces of the left and right portions of the box top wall 2 formed in an inward flange shape.
In the open state in which the right and left rear portions of the opening 21 are pivotally attached to the left and right rear portions of the opening 3 formed in the top wall of the box, and the lid plate 21 is erected around the pivoted portion, the opening is lower than the axis at which the lid plate pivots. The tip of the pressing plate 47 was brought into contact with the inner surface of the upper cover plate base portion.

As a fourth means, there is provided the third means, and the second leaf spring 56 is provided with a hanging plate
54 and a second leaf spring 56 which stands up from a lower end of the hanging plate portion via a bent plate portion 55 rearward and upward, and an upper portion of the second leaf spring is used as a pressing plate 47.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment shown in FIGS. 1 to 4 will be described.
In this box, the lower end surface of the peripheral wall 4 hanging down from the outer periphery of the top wall is closed by the bottom wall 5. An engagement plate 6 for fitting an elastic member, which will be described later, is provided vertically from the inner surface of the rear wall portion of the peripheral wall.

The top wall 2 hangs down the first fitting wall 7 from inside the outer peripheral portion thereof, and further hangs down the second fitting wall 9 from the lower end of the fitting wall via the first inward flange 8. Then, a second inward flange 10 is attached to the lower end of the fitting wall, and a flange hole of the second inward flange is used as an opening 3 for taking out stored items. A groove 11 for fitting the handle of the lid plate is formed in the rear part of the top wall from the middle part in the left-right direction of the rear part of the first fitting wall, and push buttons are provided on the front part of the top wall and the front wall part of the peripheral wall in front of the groove. A mounting groove 12 is formed. The bottom wall of the handle portion fitting groove 11 is provided with a window hole 13 for sliding an elastic member described later.

Reference numeral 21 denotes a cover plate which projects the handle portion 23 rearward from the rear portion of the main plate portion 22. The cover plate 21 hangs down from the outer peripheral lower surface of the main plate portion 22 to the first cylinder 24 to be fitted to the inner surface of the first fitting wall 7. The second cylinder 25 to be fitted from the inner part of the first cylinder to the inner surface of the second fitting wall 9 is hung down. Further, the rear end of the handle portion projecting rearward from the left-right intermediate portion of the rear surface of the main plate portion is pivotally attached to the inner surface of the rear end portion of the handle portion fitting groove 11 so that the cover plate 21 can be freely raised and lowered.

Reference numeral 31 denotes a push button for pushing up the front part of the cover plate. The middle part in the front-rear direction is pivotally attached to the right and left rear parts of the groove 12 for attaching the push button. The push button front part 31b is made to protrude forward by engaging the
31b, the rear portion 31a pushes up the front portion of the cover plate 21 to move the first tube 24 and the second tube 25 into the first fitting wall 7 and the second fitting wall 9 respectively.
It is provided so that it can be almost pulled out from.

Numeral 41 denotes an elastic member. As shown in FIG. 4, a first leaf spring 44 extends obliquely forward from the upper end of the upright plate portion 42 via the first bent portion 43, and a second leaf spring extends from the lower end of the first leaf spring. The second leaf springs 46 are respectively projected upward through the bent portions 45, and the upper end of the second leaf spring 46 is used as a backward curved plate portion, and the tip end of the curved plate portion is pressed against a pressing plate 47. And Also, the lower end of the upright plate portion 42 cannot be pulled out from the lower surface of the above-described box rear wall portion between the folded plate and the lower portion of the upright plate portion as a folded plate 48 upward and rearward. Is fitted.

The second leaf spring 46 is inserted into the window hole 13 formed in the box top wall 2 and the pressing plate 47 is moved to the cover plate 21 around the pivoted portion as shown in FIG. In the state of being raised, it is pressed against the base portion of the cover plate above the pivot axis, in the illustrated example, the inner surface of the cover plate handle portion 23. In this state, the handle portion 23 close to the pivot portion comes into contact with the inner surface of the upper end of the handle portion fitting groove 11, so that the cover plate 21 is kept upright so as not to fall backward. In this state, the standing plate portion 42 stands along the inner surface of the rear wall portion of the box peripheral wall.

In the above configuration, from the open state shown in FIG. 1 to the front part of the cover plate, or in the upright state of FIG. As shown in FIG. 2, the lid plate 21 is folded down, and the first tube 24 and the second tube 25
The first fitting wall 7 and the second fitting wall 9 are fitted, and the rear part 31a of the push button 31 is pushed down by the front part of the cover plate, and the front part 31b of the push button is pushed down.
Is substantially horizontal apart from the bottom surface of the push button mounting groove 12.
In addition, at this time, the tip of the pressing plate 47 is rotated forward and downward about the pivoted portion by the lid plate portion with which the tip contacts, as shown in FIG.
As shown by, the first bent portion 43, the first leaf spring 44, the second bent portion 45, the second leaf spring portion 46
The pressing plate 47 moves forward of the window hole 13 due to the elastic deformation.
In this state, since the lid plate 21 is urged in the lid opening direction by the elastic member 41, the lid is opened as shown in FIG. 1 by pushing up the front part of the lid plate by pushing down the push button front part 31b.

FIGS. 5 to 8 show a second embodiment. In this embodiment, the shape of the elastic member 41 is changed and the mounting position is also changed. As shown in FIG. 8, the elastic member of this embodiment has the first leaf springs 52, 52 projecting forward from the left and right ends of the substrate 51 in a flat U-shape, and from the rear surface of the substrate 51 in the left-right direction to the rear. The hanging plate portion 54 projects downward and rearward through an overhanging plate portion 53 of the second member, and a second leaf spring 56 is erected from a lower end of the hanging plate portion via a bent plate portion 55 rearward and upward. Is formed on a pressing plate 47 similar to that of the first embodiment.

The front ends of the first leaf springs 52, 52 are bent upward to form fixing plates 57, 57. These fixing plates are shown in FIG.
As shown in FIG. 6, the second fitting wall is fixed by being fitted into holes in lower surface openings provided at both front left and right portions of the front portion of the second fitting wall.

The other parts are the same as those in the first embodiment, and thus the same reference numerals are given and the description is omitted.

FIGS. 9 to 12 show a third embodiment. In this embodiment, as shown in FIG. 12, the front portion of the first leaf spring of the second embodiment is bent left and right outwards 58, 58, and fixing plates 57, 57 are provided at the ends thereof. Are fitted into dovetail grooves of mounting plates 59, 59 attached to the upper inner surfaces of the left and right side walls of the drum. By forming in this manner, the length of the first leaf springs 44, 44 can be made shorter than in the case of the second embodiment.

The other structure is the same as that of the second embodiment, so that the same reference numerals are given and the description is omitted.

In the case of the second and third embodiments, when the front portion of the lid plate located at the upper end of the lid plate is pushed forward and downward from the upright state of the lid plate 21 shown in FIGS. The springs 52, 52, the hanging plate portion 54, the bent plate portion 55, the second leaf spring 56, etc. are elastically deformed,
The first cylinder 24 and the second cylinder 25 of 21 are fitted to the first fitting wall 7 and the second fitting wall 9 of the box 1. At this time, the front part of the push button 31
As in the case of the first embodiment, the lower part 31b becomes horizontal from the lower forward hanging state, and the lower part 31b of the push button is pushed down from this state, so that the rear part 31a of the push button pushes up the front part of the lid and opens the lid. Each of the above-described members is formed of a synthetic resin material. In the above-described embodiment, the box having the top wall has been described. However, the top wall is not always necessary. When the box does not have the top wall, the opening formed by the upper end surface of the peripheral wall can be opened and closed by the cover plate. It may be provided.

[0023]

According to the present invention, the entire box including the elastic member for biasing the lid plate can be formed of a synthetic resin material. Therefore, when the box is discarded, the whole can be discarded as a synthetic resin product.

According to the second aspect, when the lid is closed from the open state in which the lid plate 21 stands up, the first bent portion 43, the first leaf spring 44, and the Since the second bent portion 45 and the second leaf spring 46 are elastically deformed to urge the cover plate 21 in the opening direction, the upright plate portion rises up to the upper portion of the box peripheral wall rear wall. The distance to the tip of the pressing plate 47 is short, and the first and second
Since the length of the elastic plate portion formed by the leaf spring or the like can be increased by interposing the first and second bent portions in the middle, the above-mentioned bias can be strengthened.

According to the third aspect of the present invention, the first leaf springs 52, 52 can be made long and two pieces, and the urging force of the lid in the opening direction can be increased. Leaf spring 56
The lid can be easily opened by increasing the moving distance of the tip of the pressing plate 47 formed by the upper portion. Further, since the first leaf springs 52, 52 are laid laterally on the upper part in the box, the first leaf springs rarely hinder the stored items.

According to the fourth aspect, the second leaf spring is provided.
By increasing the length of 56 and shortening the distance from the substrate 51 to the tip of the pressing plate 47, the second leaf spring 56 can be easily elastically deformed, and its elasticity can be increased.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a box of the present invention in an open state.

FIG. 2 is a sectional view showing the box in FIG. 1 in a closed state.

FIG. 3 is a plan view of the box in FIG. 2;

FIG. 4 is a perspective view of an elastic member used for the box in FIG. 1;

FIG. 5 is a cross-sectional view showing a box open state shown in a second embodiment.

FIG. 6 is a sectional view showing the box in FIG. 5 in a closed state.

FIG. 7 is a plan view of the box in FIG. 6;

FIG. 8 is a perspective view of an elastic member used for the box in FIG. 5;

FIG. 9 is a cross-sectional view in a box open state shown in the third embodiment.

10 is a sectional view showing the box in FIG. 9 in a closed state.

11 is a plan view of the box in FIG. 10;

FIG. 12 is a perspective view of an elastic member used for the box in FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Box 3 ... Opening 21 ... Lid plate 31 ... Push button 41 ... Elastic member 42 ... Standing plate part 43 ... 1st bending part 44 ... 1st leaf spring 46 ... 2nd leaf spring 47 ... Pressing plate 51 ... Board 52 ... 1st leaf spring 56 ... 2nd leaf spring

Continued on front page F-term (reference) 3E084 AA05 AA14 AA24 BA01 CA03 CC03 FA01 FC04 GA06 GB06 GB25

Claims (4)

[Claims] 1. A cover plate 21 is pivotally attached to a side edge portion of an opening 3 provided on one surface of a box by urging outwardly, and the opening plate 3 is closed against the urging. In a box with a synthetic resin lid plate provided with an engagement means for holding a state in which the elastic member 41 is fixed to a part of the inner wall surface of the box, a synthetic resin elastic member 41 is provided in the box 1, The distal end of the pressing plate 47 of the elastic member is brought into contact with the inner surface of the lid plate base near the pivot portion of the lid plate in the open state of the lid plate, and the elastic member 41 is closed by the lid around the pivot portion. Is a box with a cover plate, wherein said cover plate 21 is urged by said elastic member. 2. The elastic member 41 includes a first leaf spring 44 extending obliquely forward from an upper end of an upright plate portion 42 via a first bent portion 43 and a second bent portion 45 extending from a lower end of the first leaf spring. The second leaf springs 46 are respectively projected upward through the second leaf springs 46.
The upper end of the bent plate is formed as a rearward curved plate, and the tip of the curved plate is formed as a pressing plate 47. The lower end of the upright plate 42 is fixed to the inner surface of the lower end of the box rear wall. The upright plate portion 42 is raised up to the upper portion of the rear wall along the inner surface of the box rear wall, and the left and right rear portions of the lid plate 21 are pivotally attached to the right and left rear portions of the opening 3 formed in the box top wall 2. 2. The pressing plate 47 abuts on the inner surface of the base portion of the lid plate above the lid plate pivot axis in the open state in which the lid plate is erected around the mounting portion. Box with a lid plate. 3. The substrate according to claim 1, wherein the elastic member is formed in a U-shape in a plane.
The first leaf springs 52, 52 are projected forward from both left and right ends of the board 51, the second leaf spring 56 is erected upward from the middle part of the substrate 51, and the upper part of the second leaf spring is bent upward and backward. A pressing plate 47 is formed, and the front ends of the first leaf springs 52, 52 are fixed to the upper inner surface of the left and right side walls of the box or to the inner surfaces of the left and right portions of the box top wall 2 formed in an inward flange shape. In the open state in which the right and left rear portions of the plate 21 are pivotally attached to the left and right rear portions of the opening 3 formed in the box top wall, and the lid plate 21 is erected around the pivot portion, from the lid plate pivot axis. 2. The box with a cover plate according to claim 1, wherein the front end of the pressing plate 47 is brought into contact with the inner surface of the base portion of the upper cover plate. 4. The second leaf spring 56 includes a hanging plate portion 54 extending downward from the substrate 51, and a bent plate portion 55 extending rearward and upward from the lower end of the hanging plate portion.
And a second leaf spring (56) standing up through the second leaf spring, and an upper portion of the second leaf spring is used as a pressing plate (47).
Box with lid plate as described.