JP6934237B2 - trash can - Google Patents

Description

The present invention relates to a trash can, and more particularly to a locking mechanism for a trash can lid having a lid that is openable and closable to the trash can body.

A trash can is known in which a lid plate having a hinge portion at one end and a lock portion at the other end is provided so as to be openable and closable up and down with respect to the upper opening of the trash can body, and the lid plate is provided with an urging force in the opening direction (for example, a patent). Documents 1 and 2).

In the above-mentioned trash can, since the lid plate is opened and closed while holding the trash to be discarded in the trash can in one hand, it is desirable that the lock of the lid plate can be released with one touch only with the remaining one hand.

As a locking mechanism for that purpose, for example, Patent Document 1 describes
"A pair of opposing elastic locking claws 14 are formed via the base 15 in the main body 13 in which the elastic locking portion 12 is formed at the lower portion so as to be embedded and locked in the recess of the frame body 3. It is installed internally by applying an ascending force by the spring 16, and narrows so as to lock the locking protrusion 10 of the lid 5 when the locking claw 14 descends into the main body 13, and opens and locks when ascending. Further, a horizontal groove 17 is formed in the base 15 of the locking claw 14, and the back surface of the front cover 18 of the main body 13 rises once at the center of the bottom in opposition to the horizontal groove 17. A loop groove 20 having a recess 19 having a substantially triangular shape and a horizontal width slightly smaller than the length of the horizontal groove 17 is formed, and a ball 21 is held between the horizontal groove 17 and the loop groove 20. Therefore, when the lid is closed, the base portion 15 of the locking claw 14 is pushed down by the locking protrusion 10, so that the locking claw 14 descends while narrowing, and at the same time, the ball 21 also descends in the loop groove 20. Then, the locking protrusion 10 is locked by the locking claw 14, and when the pressing force is released, the ball 21 reaches the recess 19 and temporarily stops as shown in FIG. 7 (b), and the lid 5 is closed. The closed state is maintained. Next, when the lid 5 is pressed again and the base portion 15 is pushed down by the locking protrusion 10, the ball 21 is pushed by the top of the horizontal groove 17, and the arrow in FIG. 7 (b). The locking claw 14 is raised and opened by the spring 16 while moving as in the above, and the lid 5 is automatically opened by the spring material 8. "
~ The locking mechanism is disclosed.

Further, in Patent Document 2,
"In a trash container 5 provided with a container 1 and a lid 4 which is pivotally supported by a shaft 3 at the rear of the mouth 2 of the container 1 and can be opened and closed around the shaft support, a shaft 11 is attached to the front of the lid 4. A grip portion 12 that is supported and extends upward from the shaft support portion, is gripped, rotates around the shaft support portion, and raises and lowers the front portion of the lid 4, and extends downward from the shaft support portion integrally with the grip portion 12. The locking portion 13 which is rotated by the grip portion 12 at a position where the lid 4 is locked to the closed state and a unlocked position where the lid 4 is unlocked by engaging with the engaging portion 2a of the mouth 2 of the container 1 from the side. And was set up. "
~ The locking mechanism is disclosed.

Microfilm of Jitsugyo No. 59-4530 (Jitsukaisho No. 60-115857) JP-A-2007-230726

In the locking mechanism in the above-mentioned known invention, the former one can lock and unlock only by pressing the lid body, so that one-touch work is very easy and does not require a separate operating member for locking. The area around the lid is neat and does not impair the design of the trash can.

However, on the other hand, due to the complicated structure around the locking part, it becomes an obstacle when manufacturing a trash can by molding plastic, and metal parts such as springs and balls must be prepared separately, which is a manufacturing cost. There was a problem that it was bulky. Furthermore, the mechanism is complicated, and since a plurality of members such as springs and balls are combined, there is a risk of failure.

On the other hand, the latter one locks and unlocks by rotating the grip portion, so that the structure around the locking portion is relatively simple, and metal parts such as springs are not used. , Advantageous in terms of manufacturing cost.

However, in order to release the lock, it is necessary to rotate the grip portion, and the one-touch operation becomes a little more complicated than the former one. In addition, since the grip portion protrudes greatly from the lid body, the lid body may open without permission when an object hits the grip portion, while the presence of a large and conspicuous grip portion impairs the design of the trash can. There is also a risk.

In view of the above problems of the prior art, the present invention was created for the purpose of providing a trash can having a simple mechanism, a simple one-touch operation, and a lock mechanism that does not impair the design of the trash can. It is a trash can.

That is, the trash can of the present invention is provided with a lid plate having a hinge portion at one end and a lock portion at the other end so as to be openable and closable up and down with respect to the upper opening of the trash can main body, and the lid plate is provided with an urging force in the opening direction. In the trash can, the top plate has a pressing part, the hanging plate has an inverted L-shaped unlocking operation piece with a locking part to the trash can body, the pivot part is on the end side of the lid plate, and the pressing part is on the lid plate. The top plate of the unlocking operation piece is in the ascending position by the urging force by setting it inward and rotatably provided on the lid plate and applying an urging force in the ascending direction of the top plate to the unlocking operation piece. At times, the locking part of the hanging plate that approaches the trash can body locks to the locked part of the trash can body, the lid plate is locked in the covered state, and the top plate of the unlocking operation piece pushes the pressing part. When it is in the lowered position, the locking portion of the hanging plate separated from the trash can main body is separated from the locked portion of the trash can main body to unlock the lid plate.

Further, according to the second aspect of the present invention, in the above-mentioned trash can, a spring leg having a curved tip downward is projected on the back surface of the top plate of the unlocking operation piece made of elastic plastic by integral molding. By bringing one end of the spring foot into contact with the lid plate, the spring foot is elastically deformed due to rotation to give the unlocking operation piece a urging force in the ascending direction of the top plate.

Further, according to the third aspect of the present invention, in the trash can, a recess for accommodating the unlocking operation piece is recessed at one end of the lid plate, and a pivot portion is provided in the recess on the end side of the lid plate for unlocking. The operation piece is accommodated so that the top plate is positioned on the same plane as the top surface of the lid plate when the top plate is raised.

Further, the invention according to claim 4 sets the lower end of the hanging plate of the unlocking operation piece to be located on the same plane as the lower end of the lid plate in the trash can, and also sets the edge of the peripheral edge of the upper opening of the trash can body. A horizontal U-shaped locking arch is erected on the part, and the locking protrusion on the back of the hanging plate that approaches the trash can body when the top plate of the unlocking operation piece is in the ascending position due to urging force is the above. It is characterized in that it enters the locking arch portion and locks on the back surface of the top plate of the arch portion.

According to the trash box of the present invention, an inverted L-shaped unlocking operation piece having a pressing portion on the top plate and a locking portion for the trash box body on the hanging plate is adopted, and the unlocking operation piece is in the ascending direction on the top plate. When the top plate is in the raised position due to the urging force, the locking part of the hanging plate is locked to the locked part of the trash box body, and the lid plate is locked in the covered state and pressed. When the top plate is in the lowered position by pushing the part, the locking part of the hanging plate is released from the locking part of the trash box body and the lid plate is unlocked. In this case, the pivot of the unlocking operation piece The branch is set on the end side of the lid plate, and the pressing portion is set on the inside of the lid plate. Therefore, when locking, it is realized by simply pushing down the lid plate, and when unlocking, it is realized by simply pushing the pressing part of the top plate of the unlocking operation piece located inward on the lid plate. Compared with the locking mechanism of the conventional invention described in Patent Document 2, the lock can be released with one touch by an extremely natural behavior.

Next, according to the invention of claim 2, a spring leg having a curved tip downward is projected on the back surface of the top plate of the unlocking operation piece made of elastic plastic by integral molding, and the above spring. By bringing one end of the foot into contact with the lid plate, the spring foot elastically deforms due to rotation to give the unlocking operation piece a urging force in the ascending direction of the top plate. It is possible to reduce the manufacturing cost without the need for a spring made of plastic.

Next, according to the invention of claim 3, the unlocking operation piece is provided with a recess for accommodating the unlocking operation piece at one end of the lid plate and a pivot portion provided on the end side of the lid plate in the recess. Since the top plate is housed so that it is located on the same plane as the top surface of the lid plate when the top plate is raised, it is possible to prevent the unlocking operation piece from being buried in the lid plate and integrated, which impairs the design of the trash box. Also, there is no risk of the lid opening without permission when hit by an object.

Next, according to the invention of claim 4, the lower end of the hanging plate of the unlocking operation piece is set to be positioned on the same plane as the lower end of the lid plate, and at the end of the peripheral edge of the upper opening of the trash can body. A horizontal U-shaped locking arch is erected, and the locking protrusion on the back of the hanging plate that approaches the trash can body when the top plate of the unlocking operation piece is in the ascending position due to urging force is the above locking. Since it enters the use arch and locks on the back surface of the top plate of the arch, all the locking mechanisms are housed on the trash can body and inside the lid, and the unlocking operation piece does not protrude from below the lid. , It is possible to prevent the design of the trash can from being impaired.

As described above, since the trash can of the present invention can be unlocked by simply pushing the pressing portion of the top plate of the unlocking operation piece located inward on the lid plate, the lock can be released only by the pressing operation of the lid. Similar to the conventional invention described in Patent Document 1, a simple one-touch operation can be realized, but on the other hand, the mechanism for that is dramatically simpler than that of the conventional invention, and no metal parts are used. Has.

Further, the mechanism is simple and no metal parts are used, which is the same as the conventional invention described in Patent Document 2, but the mechanism for that purpose does not protrude significantly as in the conventional invention. Since it is buried in the lid plate and integrated, it is possible to prevent the design of the trash can from being impaired, and there is no risk of the lid opening by hitting an object.

The perspective view of the covered state of the trash can of the present invention. Same as above, perspective view with the lid open. Same as above, perspective view of the main part of the lid with the unlocking operation piece removed. Same as above, a perspective view of the unlocking operation piece observed from the front side. Same as above, perspective view of the unlocking operation piece observed from the back side. Same as above, perspective view of the main part of the locked lid. Same as above, perspective view of the main part of the lid in the unlocked state. Same as above, cross-sectional view of the main part of the locked lid. Same as above, cross-sectional view of the main part of the lid in the unlocked state.

Hereinafter, specific examples of the trash can of the present invention will be described with reference to the accompanying drawings. 1 and 2 are diagrams showing an example of a trash can in which the present invention is carried out. This trash can is obtained by molding plastic, and a lid plate 1 having a hinge portion 2 at one end and a lock portion 3 at the other end is provided on the upper opening 11 of the trash can main body 10 so as to be openable and closable up and down. It has a known basic configuration in which an urging force is applied to the lid plate in the opening direction.

3 to 9 are views showing details of the lock portion 3 which is the gist of the present invention. Reference numeral 20 in the figure indicates an unlocking operation piece. The unlocking operation piece 20 is formed of an inverted L-shape in which a pressing portion is provided on the top plate 20A and a locking portion 24 is provided on the hanging plate 20B for the trash can body 10, and is rotated to a position where the top plate and the hanging plate meet. Shaft holes 21, 21 forming a pivotal branch for the purpose are provided.

On the other hand, a recess 4 for accommodating the unlocking operation piece 20 is recessed at one end of the lid 1 with the end side of the lid open (see FIG. 3), and the end of the lid of the recess is provided. By passing the shafts 6 and 6 projecting upward on the portion side through the shaft holes 21 and 21 of the unlocking operation piece 20, the unlocking operation piece provided with the pivot portion on the end side of the lid plate can be lifted. When the plate is raised, the top plate is accommodated so as to be positioned on the same plane as the top surface of the lid plate.

The unlocking operation piece 20 is given an ascending force of the top plate 20A when rotating. Here, the tip of the unlocking operation piece 20 is curved downward on the back surface of the top plate of the unlocking operation piece made of elastic plastic. The pair of spring legs 23, 23 are projected by integral molding, and one end of the spring legs is brought into contact with the lid plate 1, so that the top plate is attached to the unlocking operation piece due to the elastic deformation of the spring legs due to the rotation. It is used as a means of giving an ascending force to the surface (see FIGS. 8 and 9). By providing an eaves-shaped overhanging portion 5 at the upper end portion of the lid plate of the recess 4 on the inner side, the end portion 22 of the top plate 20A of the accommodated unlocking operation piece 20 is the overhanging portion 5 described above. It comes into contact with the eaves to prevent further rotation.

Reference numeral 13 in the drawing is a locking arch portion erected at the front end portion of the peripheral edge 12 of the upper opening 11 of the trash can main body 10 (see FIGS. 2 and 3). By forming the locking arch portion 13 in a horizontal U shape, a locked hole is generated between both side walls and the top plate, and the top plate 20A of the unlocking operation piece 20 is moved to an ascending position by urging force. The locking projection 24 on the back surface of the hanging plate 20B that has approached the main body of the trash can enters the locked hole of the locking arch portion and is locked to the back surface of the top plate of the arch portion. The locking projection 24 on the back surface of the hanging plate 20B is formed in a tapered shape with a narrow tip, so that when the lid plate 1 is covered, the tip opposes the urging force and the locking arch portion 13 It is possible to get over the front end of the top plate and enter the locking arch part. Further, the lower end of the hanging plate 20B of the unlocking operation piece 20 is set to be positioned on the same plane as the lower end of the lid plate 1.

1 Lid 2 Hinge 3 Lock 4 Recess 5 Overhang 6 Shaft 10 Recycle bin body 11 Top opening 12 Periphery 13 Locking arch 20 Unlocking operation piece 20A Top plate 20B Hanging plate 21 Shaft hole 22 End 23 Spring foot 24 Locking protrusion

Claims (1)

To the upper opening of the trash body, a hinge portion at one end, in the trash gave biasing force of the opening direction to the cover plate with the cover plate in which the other end a locking portion provided openably vertically, the top plate Set the pressing part to the inverted L-shaped unlocking operation piece with the hanging plate provided with the locking part to the trash can body, set the pivot part to the end side of the lid plate, and set the pressing part to the inside of the lid plate. By providing the lid plate rotatably and giving the unlocking operation piece an urging force in the ascending direction of the top plate, when the top plate of the unlocking operation piece is in the ascending position due to the urging force, it approaches the trash can body. When the locking part of the hanging plate is locked to the locked part of the trash can body and the lid plate is locked in the covered state, and the top plate of the unlocking operation piece is in the lowered position by pushing the pressing part. In a trash can where the locking part of the hanging plate separated from the trash can body is separated from the locked part of the trash can body and the lock of the lid plate is released.
A spring leg whose tip is curved downward is projected by integral molding on the back surface of the top plate of the unlocking operation piece made of elastic plastic, and one end of the spring leg is brought into contact with the lid plate. As a means to give the unlocking operation piece an ascending force of the top plate by elastic deformation of the spring foot due to rotation.
A recess having an opening shape matching the planar shape of the unlocking operation piece, which accommodates the unlocking operation piece, is recessed at one end of the lid plate, and a pivot portion is provided on the end side of the lid plate in the recess. The operation piece is housed so that the top plate is located on the same plane as the top surface of the lid plate when the top plate is raised.
By providing an eaves-shaped overhang on the inner upper end of the lid plate of the recess, the end of the top plate of the accommodated unlocking operation piece comes into contact with the overhang and rotates further. Recycle bin characterized by blocking.

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