EP0060794A2 - Paper basket - Google Patents

Abstract

Wastepaper basket, of the type comprising a support 1, a receptacle bin 2 designed to be removably mounted on the support, and a lid 3 for said bin, mounted so as to rotate about a pin 4 between a closed position in which it prevents the bin from being removed from its support and an open position in which it allows it to be so removed, characterised in that said lid comprises at least one projection 25 interacting with a leafspring that is fixed relative to the hinge pin, the projection and the leafspring being so shaped that the spring is not in tension when the lid is closed and holds the lid in its position when it is open; the hinge pin 4 is engaged in at least one support bearing 20 and carries at least one bearing 21 formed in the lid, while locking means are provided to prevent axial movement of the hinge pin in its bearings when the lid is closed and allow such movement when the lid is open; the support comprises holding means 6 to support the bin at its bottom and locking means at its top. <IMAGE>

Description

The present invention relates to a wastepaper basket and more particularly such a basket of the type comprising a support, a receiving basket arranged to be removably mounted on the support and a cover for said basket mounted for rotation about an axis between a position closed where it prevents the removal of the basket from its support and an open position where it allows this removal.

In wastepaper baskets of this known type a locking device keeps the cover in its closed position against the action of a spring which in this position is in permanent tension. This results in permanent deformation of the cover when the wastepaper basket is made of plastic. On the other hand because of its deformations, the unlocked cover does not remain raised and therefore hinders the removal of the basket from its support.

The object of the present invention is in particular to remedy these drawbacks.

To this end, the subject of the invention is a wastepaper basket of the type recalled above, characterized in that said cover has at least one projection capable of cooperating with a leaf spring fixed with respect to the axis of rotation. and the leaf spring being shaped so that the spring is not under tension in the closed position of the cover and that it keeps the cover in its position when it is in the open position.

In a preferred embodiment of the invention said leaf spring is substantially perpendicular to the axis of rotation, and is folded to form an inclined plane cooperating with a ramp formed by the projection to constrain the spring during the rotational movement of the cover to its open position, and a shoulder cooperating with a surface support formed by the projection to keep the cover open after a return of the spring in a less stressed state.

Advantageously, the axis of rotation and the leaf spring are mounted on the support of the receiving basket.

The present invention also aims to provide a wastepaper basket, the cover of which can only be removed in its open position.

To this end, the invention also relates to a wastepaper basket of the type recalled above, characterized in that the axis of rotation is engaged in at least one support bearing and carries at least one bearing formed in the cover, locking means being provided to prevent axial movement of the axis of rotation in these bearings when the cover is in the closed position and to allow this movement when the cover is in the open position.

This arrangement therefore allows rapid removal of the cover without any accessory other than the cover unlocking key.

Preferably said locking means comprise a rib formed on the axis of rotation along one of its generatrices and a groove formed on the inner surface of each of the bearings along one of their generatrices, the axial length of said rib being greater than the distance between the two bearings and the two grooves facing each other in the open position of the cover.

The shaft can therefore be engaged in or removed from its bearings when the cover is in the open position. On the other hand, when the cover is in the closed position the grooves are no longer facing each other so that the rib can only be engaged in one of these grooves and that the axis cannot be removed.

Preferably the rib of the axis of rotation is arranged to be, in the operating position, engaged in the groove of the bearing of the cover.

By this arrangement the axis is rotated with the cover. Thus it suffices to remove it from imparting an axial movement to it since the rib automatically returns opposite the groove of the support bearing when the cover is brought into the open position.

It is also possible to provide elastic means capable of maintaining the axis of rotation in the operating position when the cover is in the open position.

This arrangement avoids involuntary withdrawal of the axis of rotation when the cover is in its open position.

These elastic means may comprise a protrusion mounted elastically radially, integral with the axis of rotation cooperating with an annular groove formed at the periphery of a boss coaxial with the support bearing.

Preferably the support bearing is formed on the support of the receiving basket.

It has also been noted in known plastic wastebaskets that the basket flexes in use due to the lack of support at their lower part. Furthermore, it is generally difficult to put the basket back in place on its support because this manipulation is carried out without it being possible to see the attachment means.

The present invention also aims to overcome these drawbacks and has for this purpose a wastebasket of the type comprising a support and a receiving basket arranged to be removably mounted on the support, characterized by the fact that the support comprises support means for supporting the basket at its lower part and locking means at its upper part.

The basket being supported at its lower part, this avoids deformation of the known wastepaper baskets.

These support means can for example comprise at least one finger secured to the support cooperating with a notch formed in a rib of the basket, or conversely at least one finger secured to the basket cooperating with a rib formed in the support.

Furthermore, in a preferred embodiment of the invention, the basket has at its lower part a wedge-shaped guide groove cooperating with a shape complementary to the support to guide the basket until the engagement of the support means.

These guide means ensure easy installation of the basket on its support by facilitating the engagement of the support means.

Preferably the locking means comprise a cover for said basket mounted for rotation between a closed position where it prevents the release of the support means and an open position where it allows this release.

Furthermore, a holding hook can be mounted integral with the receiving basket to cooperate with a support member, a rib located opposite the opening of the hook preventing said member from disengaging from the hook in the operating position of the basket.

This holding hook makes it possible to prevent the basket from tilting when the cover is in the open position. By elsewhere, the rib prevents the basket from rising and consequently the support means from being released.

• La figure 1 est une vue en perspective des différents éléments démontés de la corbeille à papier selon l'invention,
• la figure 2 est une vue de côté de la corbeille à papier montée,
• la figure 3 est une vue de face du support de la corbeille à papier selon l'invention,
• la figure 4 est une vue de côté partielle de la corbeille à papier selon l'invention avec son couvercle en position ouverte,
• la figure 5 est une vue en coupe de la partie supérieure de la corbeille avec le couvercle en position fermée,
• la figure 6 est une vue similaire à la figure 5 avec le couvercle en position ouverte,
• la figure 7 est une vue en coupe prise le long de la ligne VII.VII de la figure 3 lorsque l'on est en train d'engager l'axe du couvercle dans ses paliers avec le couvercle en position ouverte,
• la figure 8 est une vue similaire à la figure 7 lorsque l'axe est complètement engagé avec le couvercle en position fermée,
• la figure 9 est une vue en coupe prise à travers un palier du couvercle lorsque l'axe est en cours d'engagement avec le couvercle en position ouverte,
• la figure 10 est une vue similaire à la figure 9 avec l'axe complètement engagé et le couvercle en position fermée,
• la figure 11 est une vue en coupe suivant les lignes XI-XI des figures 7 et 9, et
• la figure 12 est une vue en coupe suivant les lignes XII-XII des figures 8 et 10.

A particular embodiment of the invention will now be described by way of nonlimiting examples with reference to the appended schematic drawings in which:

• FIG. 1 is a perspective view of the various elements removed from the wastepaper basket according to the invention,
• FIG. 2 is a side view of the mounted wastepaper basket,
• FIG. 3 is a front view of the support for the wastepaper basket according to the invention,
• FIG. 4 is a partial side view of the wastepaper basket according to the invention with its cover in the open position,
• FIG. 5 is a sectional view of the upper part of the basket with the cover in the closed position,
• FIG. 6 is a view similar to FIG. 5 with the cover in the open position,
• FIG. 7 is a sectional view taken along line VII.VII of FIG. 3 when one is in the process of engaging the axis of the cover in its bearings with the cover in the open position,
• FIG. 8 is a view similar to FIG. 7 when the axis is fully engaged with the cover in the closed position,
• FIG. 9 is a sectional view taken through a bearing of the cover when the axis is being engaged with the cover in the open position,
• FIG. 10 is a view similar to FIG. 9 with the pin fully engaged and the cover in the closed position,
• FIG. 11 is a sectional view along lines XI-XI of FIGS. 7 and 9, and
• FIG. 12 is a sectional view along lines XII-XII of FIGS. 8 and 10.

As shown in FIG. 1, the wastepaper basket according to the invention essentially comprises a support 1, a receiving basket 2 and a cover 3 as well as a rotation axis 4 for the cover.

These four basic elements are for example made of molded plastic which has the advantage of simplicity and a relatively low cost.

Note that in Figure 1 the receiving basket 2 and its cover 3 are shown relative to the support 1 and the axis 4 after a pivoting of 90 ° around a vertical axis for better clarity of the drawing.

The basket 2 has at its lower part a set of means 5 capable of cooperating with support means 6 formed at the lower part of the support 1.

Furthermore, the cover 3 is arranged to block the basket 2 on the support 1 when it is in the closed position as will be described below.

In addition, holding means 7 fixed to the basket 2 are provided to cooperate with a member 8 which here has the form of a rib of the support 6.

This support essentially comprises a central part in the form of a beam 9 comprising means of all known types for fixing it for example to a wall or a post.

The central part 9 receives at its lower part the aforementioned holding means 6 and at its upper part means 10 for receiving the cover 3 which will be described in more detail below.

The holding means 6 essentially comprise two horizontal fingers 11 disposed on either side of the vertical plane of symmetry of the support 1 as well as a wedge-shaped part 12 forming on its front face an inclined plane 13.

The means 5 of the basket 2 for their part comprise two ribs 14 in which are provided notches 15 arranged to receive the fingers 11 as is particularly shown in FIG. 2.

The means 5 also comprise a groove 16 in the form of a wedge with a shape complementary to that of the part 12 of the support 6.

It is therefore sufficient to engage the fingers 11 in the notches 15 to engage the groove 16 straddling the central part 9 of the support 6 and then to slide the basket 2 downwards using the surface 13 as a guide surface to bring the fingers 11 in the notches 15 without it being necessary to see the support 1.

As shown in particular in Figure 5 the holding means 7 comprise a hook 17 whose opening is directed downward and a rib 18 located below the hook 17 that is to say opposite its opening.

The hook 17 is arranged at a height such that when the notches 15 are placed in abutment on the fingers 11 the rib 8 of the support 1 can be engaged between the hook 17 and the rib 18. This engagement can be done when the notches 15 are supported on the fingers 11 by rotation of the basket 2 around its fingers and sliding of the upper edge of the rib 8 on the lower edge 19 of the hook 17.

FIG. 5 shows that when the basket 2 is in its normal position the rib 18 prevents the rib 8 from disengaging from the hook 17. It is only after a slight pivoting of the basket 2 forwards, pivoting authorized by the lifting of the cover 3 as explained below, that the rib 18 releases the rib 8 allowing it to disengage from the hook 17 by lifting the basket 2.

The support means 10 of the cover 3 will now be described on the support 1 in particular with reference to FIGS. 5 and 6.

The support 1 has two bearings 20 and the cover 3 has two bearings 21 for the axis 4. These bearings will be described in more detail below and allow the pivoting of the cover 3 relative to the support 1 and therefore relative to the basket 2 attached to it.

On the support are riveted two leaf springs 22 which are folded twice to first form an inclined plane 23 at their free end and then a shoulder 24 (Figure 5).

The cover 3 for its part comprises a projection 25 substantially in the form of a wedge to form a ramp 26 at its lower part and a bearing surface 27 at its upper part (FIG. 6).

The spring 22 and the projection 25 are arranged so that in the closed position of the cover (FIG. 5) as in the open position (FIG. 6) the spring 22 is not in a stressed state.

On the other hand, it can be seen that, when the cover 3 is opened, the ramp 26 cooperates with the inclined plane 23 to constrain the spring to the left of the figures, then that, when the cover is brought into its fully open position in FIG. 6, the spring 22 returns to its initial position so that the shoulder 24 comes into contact with the bearing surface 27 to keep the cover in the open position.

On the other hand, during the closing movement of the cover 3, the bearing surface 27 cooperates with the shoulder 24 to again constrain the spring towards the outside so that it can later return to the position shown in FIG. 5.

The cover 3 also comprises, for example at its front part, a lock making it possible to lock it in the closed position on the basket 2.

It can thus be seen that when the cover is folded back into its closed position and locked on the basket 2, the latter is blocked upwards so that the fingers 11 cannot be released from the ribs 15.

In addition, a peripheral rib 28 of the cover cooperates with the edge 29 of the basket to center the latter and prevent it from tilting forwards as shown in FIGS. 2 and 5. Thus in this position, assuming that one tries to force the basket 2 upwards to release the support means, the rib 18 blocks the rib 8 to prevent this movement. It is only when the cover 3 is open that the basket 2 can adopt the position taken in FIGS. 4 and 6 in which the rib 18 releases the rib 8 and allows movement upwards.

It can therefore be seen that the cover 3 constitutes a locking means which makes it possible, when it is closed, to secure the basket 2 on the support 1.

Furthermore in this position the springs 22 are in an unstressed state so that they do not force on the projections 25 and do not cause permanent deformations thereof.

As shown in Figure 1 and Figures 7 to 12 the axis 4 has a rib 30 formed on its outer surface along one of its generatrices.

Correspondingly, the bearings 20 of the support 1 have a groove 31 in which the rib 30 is capable of sliding and which is formed on their inner surface along one of their generatrices.

Likewise, as shown in FIGS. 9 and 10, the bearings 21 of the cover 3 have similar grooves 32 in which the rib 30 can slide.

The grooves 31 and 32 are formed in the bearings 20 and 21 so that when the cover is in the open position (Figures 7, 9 and 11) the grooves are in alignment with each other and that the axis 4 can be engaged in these bearings by a simple movement of axial translation.

Furthermore, the rib 30 has an axial length greater than the distance between the bearings 20 and 21 as can be seen in FIG. 11 and it is arranged axially so that when the axis 4 is in the operating position (FIG. 12) it is no longer engaged in the groove 31 of the bearing 20 but it is still engaged in the groove 32 of the bearing 21.

As a result, as shown in Figures 8, 10 and 12, when the cover is in the closed position the axis 4 can not be removed.

By cons when the cover is brought into the open position as shown in Figures 7, 9 and 11 the rib 30 is automatically brought by the groove 32 opposite the groove 31 so that the axis 4 can be removed.

It is further noted that thanks to this arrangement, the axis 4 is reversible, that is to say that it can be mounted in one direction or the other.

Thus thanks to the aforementioned lock, the cover can only be removed in the open position so that it suffices to have the key to this lock to operate all the necessary operations.

Finally elastic means are provided to maintain the axis 4 in its operating position of Figure 12 when the cover is in the open position.

These means comprise a projection 33 disposed at the free end of an elastic rod 34, the other end of which is integral with the axis 4.

This projection is arranged to cooperate with one or other of the grooves 35 formed on the outer surface of the bearings 20 which thus form bosses projecting from the support 1.

The projection 33 has at its front part an inclined surface so that it deviates itself radially when the axis 4 is put in place and that it thus engages in the groove 35.

The invention is of course not limited to the embodiments described above to which all modifications and variants can be made without departing from the scope of the invention.

Claims (14)

1. Wastepaper basket, of the type comprising a support 1, a receiving basket 2 arranged to be removably mounted on the support, and a cover 3 for said basket, mounted for rotation about an axis between a closed position where it prevents the basket from being removed from its support and an open position where it allows this to be removed, characterized in that said cover comprises at least one projection 25 capable of cooperating with a leaf spring fixed relative to the axis of rotation, the the projection and the leaf spring being shaped so that the spring is not under tension in the closed position of the cover and that it keeps the cover in its position when it is in the open position. 2. Wastepaper basket according to claim 1, characterized in that said leaf spring 22 is substantially perpendicular to the axis of rotation, and is folded to form an inclined plane 23 cooperating with a ramp 26 formed by the projection to constrain the spring during the movement of rotation of the cover towards its open position, and a shoulder 24 cooperating with a bearing surface 27 formed by the projection to keep the cover open after a return of the spring in a less stressed state. 3. Wastepaper basket according to any one of claims 1 and 2, characterized in that the axis of rotation and the leaf spring are mounted on the support of the receiving basket. 4. Wastepaper basket, of the type comprising a support, a receiving basket arranged to be removably mounted on the support, and a cover for said basket, mounted for rotation about an axis between a closed position where it prevents removal of the basket from its support and an open position where it allows this withdrawal, characterized in that the axis of rotation 4 is engaged in at least one support bearing 20 and carries at least one bearing 21 formed in the cover, means locking devices being provided to prevent axial movement of the axis of rotation in its bearings when the cover is in the closed position and to allow this movement when the cover is in the open position. 5. Wastepaper basket according to claim 4, characterized in that said locking means comprise a rib 30 formed on the axis of rotation along one of its generatrices and a groove 31, 32 formed on the inner surface of each of the bearings along one of their generatrices, the axial length of said rib being greater than the distance between the two bearings and the two grooves being opposite in the open position of the cover. 6. Wastepaper basket according to claim 5, characterized in that the rib of the axis of rotation is arranged to be, in the operating position, engaged in the groove of the bearing of the cover. 7. Wastepaper basket according to any one of claims 4 to 6, characterized in that it comprises elastic means able to maintain the axis of rotation in the operating position when the cover is in the open position. 8. Wastepaper basket according to claim 7, characterized in that said elastic means comprise a projection 33 mounted elastically radially integral with the axis of rotation cooperating with an annular groove formed at the periphery of a boss coaxial with the support bearing . 9. Paper basket according to any one of claims 4 to 6, characterized in that the support bearing is formed on the support of the receiving basket. 10. Wastepaper basket of the type comprising a support and a receiving basket arranged to be removably mounted on the support, characterized in that the support comprises support means 6 for supporting the basket at its lower part and blocking means at its upper part. 11. Wastepaper basket according to claim 10, characterized in that said support means comprise at least one finger 11 secured to the support cooperating with a notch 15 formed in a rib 14 of the basket. 12. Wastepaper basket according to any one of claims 10 and 11, characterized in that the basket has at its lower part a wedge-shaped guide groove 16 cooperating with a complementary shape 12 of the support to guide the basket up 'to the commitment of the means of support. 13. Wastepaper basket according to any one of claims 10 to 12, characterized in that the said locking means comprise a cover for the said basket, mounted for rotation between a closed position where it prevents the release of the support means and a open position where it allows this release. 14. Wastepaper basket according to any one of claims 10 to 13, characterized in that a holding hook 17 is mounted integral with the receiving basket to cooperate with a member 8 of the support, a rib 18 located opposite of the hook opening preventing said member from disengaging from the hook in the basket operating position.

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