Device for manually compacting waste

Abstract

A device for manually compacting waste, including a support plate and left-hand and right-hand lateral uprights secured to the support plate and delimiting a central space to accept a waste container. The device also includes a left-hand lever fixed pivotingly to the left-hand lateral upright about a pivot axis, and a right-hand lever fixed pivotingly to the right-hand lateral upright about a pivot axis, with the pivot axes arranged parallel to one another. The device further includes a thrust bar having a lower end fixed to a compression plate and connected to the left-hand and/or right-hand lever by a connector capable of sliding along the left-hand and/or right-hand lever to act on the thrust bar under lever action so as to move toward/away from the ground to allow the compression plate to be brought closer to and respectively further away from the support plate from a position of equilibrium.

Claims

1. A device for manually compacting waste contained in a container, comprising: a frame comprising a support plate configured to be placed on and/or fixed to the ground and two lateral uprights, including a left-hand lateral upright and a right-hand lateral upright, which are secured to said support plate and extend perpendicular thereto, said support plate and said lateral uprights delimiting a central space to accept a container containing waste, two levers that can be operated by hand, including a left-hand lever fixed pivotingly to the left-hand lateral upright about a left-hand axis of pivoting and a right-hand lever fixed pivotingly to the right-hand lateral upright about a right-hand axis of pivoting, said left-hand and right-hand axes of pivoting being parallel and defining a plane parallel to a plane defined by the support plate, and at least one thrust bar having a lower end that is fixed to a compression plate, said thrust bar being connected to said left-hand and/or right-hand lever by at least one connecting means able to slide along said left-hand and/or right-hand lever and configured to act on said thrust bar under an action of said left-hand and/or right-hand lever so as to move said compression plate toward the ground or away from the ground, thus allowing the compression plate to be brought closer to and respectively further away from the support plate, from a position of equilibrium in which the compression plate rests on the waste that is to be compacted.

2. The device as claimed in claim 1, further comprising guide means able to guide a translational movement of said thrust bar in a direction perpendicular to the plane defined by the support plate.

3. The device as claimed in claim 2, wherein said guide means comprise a hollow tubular element inside which said thrust bar slides, said hollow tubular element being connected to the left-hand and right-hand lateral uprights by left-hand and right-hand crossbars, respectively.

4. The device as claimed in claim 2, wherein the guide means are configured to guide the translational movement of the thrust bar in a direction that is equidistant from the left-hand and right-hand axes of pivoting of the left-hand and right-hand levers.

5. The device as claimed in claim 1, wherein the connecting means comprises a tubular rod oriented parallel to the left-hand and right-hand axes of pivoting and fixed to the thrust bar in such a way as to have a projecting part on two opposite sides of said thrust bar, said projecting parts sliding inside a slot provided inside each of the left-hand and right-hand levers, an upper edge and respectively a lower edge of said slot coming to bear on said rod when said left-hand and right-hand levers are lowered and respectively raised from the position of equilibrium of the compression plate, thus causing the thrust bar to move downward and respectively upward, and causing the tubular rod to slide along the slots of the left-hand and right-hand levers.

6. The device as claimed in claim 1, wherein the at least one connecting means comprises two connecting means, including a left-hand connecting means and a right-hand connecting means, which are connected pivotingly to the thrust bar about one and the same central pivot pin which is parallel to the left-hand and right-hand axes of pivoting, each of the connecting means comprising a hollow tubular part inside which one of the left-hand or right-hand levers slides, a lower edge and respectively an upper edge of said left-hand or right-hand lever coming to bear on a lower internal edge and respectively an upper internal edge of said hollow tubular part when said left-hand or right-hand lever is lowered and respectively raised from the position of equilibrium of the compression plate, thus causing the thrust bar to move downward and respectively upward, and causing the hollow tubular part to slide along the left-hand or right-hand lever.

7. The device as claimed in claim 1, wherein the at least one connecting means comprises two connecting means, including a left-hand connecting means and a right-hand connecting means, each of the connecting means comprising a roller connected pivotingly to the thrust bar by a pin and arranged inside an internal housing of the left-hand or right-hand lever, said pin sliding along a slot Response to Non-Final Office Action in said left-hand or right-hand lever, an upper edge and respectively a lower edge of said internal housing coming to bear on said roller when said left-hand or right-hand lever is lowered and respectively raised from the position of equilibrium of the compression plate, thus causing the thrust bar to move downward and respectively upward, and causing the roller to slide along the internal housing of the left-hand or right-hand lever.

8. The device as claimed in claim 7, wherein the roller is configured as a cylinder, and the internal housing has a parallelepipedal shape.

9. The device as claimed in claim 7, wherein the roller has a spherical shape and in that the internal housing has a tubular shape.

10. The device as claimed in claim 1, wherein the at least one thrust bar comprises two thrust bars, including a left-hand thrust bar connected to the left-hand lever by a left-hand connecting means and a right-hand thrust bar connected to the right-hand lever by a right-hand connecting means, said left-hand and respectively right-hand connecting means being able to slide along said left-hand and respectively right-hand lever and being configured to act on said left-hand and respectively right-hand thrust rod under the action of said left-hand and respectively right-hand lever so as to move said compression plate toward the ground or away from the ground.

11. The device as claimed in claim 10, wherein the left-hand and respectively right-hand connecting means is connected pivotingly to the left-hand and respectively right-hand thrust bar about a left-hand and respectively right-hand central pivot pin which is parallel to the left-hand and respectively right-hand axis of pivoting, each of the left-hand and right-hand connecting means comprising a hollow tubular part inside which the left-hand or right-hand lever slides, a lower and respectively upper edge of said left-hand or right-hand lever coming to bear on a lower and respectively upper internal edge of said hollow tubular part when said left-hand or right-hand lever is lowered and respectively raised from the position of equilibrium of the compression plate, thus causing the left-hand or right-hand thrust bar to move downward and respectively upward, and causing the hollow tubular part to slide along the left-hand or right-hand lever.

12. The device as claimed in claim 1, wherein the compression plate has an external perimeter of oval shape.

13. The device as claimed in claim 1, wherein the compression plate is fixed removably to the lower end of the thrust bar in such a way that the compression plate can easily be modified according to the size and shape of the container containing the waste and/or according to the type of waste contained in said container.

14. The device as claimed in claim 1, wherein the left-hand and right-hand levers are provided with an extendable part ora removable part so as to allow them to be lengthened or shortened.

15. The device as claimed in claim 14, wherein the extendable part is mounted telescopically or foldingly on a central part of said left-hand and right-hand levers.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Advantages and features of the present invention will be better understood from reading about a number of particular embodiments of the invention and from referring to the drawings in which:

(2) FIG. 1 depicts a perspective view of a first embodiment of a device according to the invention;

(3) FIGS. 2a, 2b and 2c respectively depict face-on, side and plan views of the device depicted in FIG. 1;

(4) FIGS. 3a to 3d depict enlarged perspective views of several means of connection that can be used in the device of FIG. 1 for connecting the left-hand and right-hand levers to the thrust bar;

(5) FIG. 4 depicts a perspective view of a second embodiment of a device according to the invention; and

(6) FIGS. 5a to 5d depict perspective views of the device depicted in FIG. 1 as the operation of compacting the waste gradually progresses.

DETAILED DESCRIPTION OF ONE EMBODIMENT OF THE INVENTION

(7) Reference is made to FIGS. 1 and 2a to 2c which depict one embodiment of the device according to the present invention.

(8) In this embodiment, the device 10 is formed of a frame 11 intended to be placed on and/or fixed to the ground. This frame 11 comprises a flat support plate 12 substantially defining a plane P, two lateral uprights, respectively a left-hand 13a and a right-hand 13b one, secured to said support plate and extending perpendicular to the plane P. The free space delimited by the lateral uprights 13a, 13b and by the support plate 12 is configured to accept a container 20 containing the waste that is to be compacted. In the alternative form depicted, this container 20 is cylindrical in shape, the base of the cylinder defining an ellipse. It is clear that other shapes are conceivable for the base. In particular, a base of rectangular, square or circular shape would be equally possible. The container 20 rests at its lower end on the support plate 12 and is open at its upper end 20a so as to allow the introduction of a compression plate intended to press down on the waste contained in the container as described in detail further on. Each lateral upright 13a, 13b is equipped at its upper end with a forked head 13c, 13d equipped with two parallel flat teeth, the intermediary space between said teeth being designed to accept the lower end of a left-hand 14a or right-hand 14b lever respectively, said levers 14a, 14b being fixed pivotingly to the left-hand and right-hand lateral uprights 13a, 13b respectively about left-hand and right-hand axes of pivoting Xa, Xb respectively, for example by means of a shaft fixed at its two ends to the teeth of the head 13c, 13d respectively. As depicted in FIG. 2b, the axes of pivoting Xa, Xb will advantageously be parallel to the plane P, the plane P1 defined by said axes being parallel to the plane P as depicted in FIG. 2a. In the position depicted in FIG. 1, the left-hand and right-hand levers 14a, 14b have been raised to the maximum extent under the effect of a manual pulling operation performed by the user on handles 14c, 14d arranged at the free end of the left-hand and right-hand levers respectively so that they extend obliquely from their point of attachment to their respective lateral upright upward and to the right, in the case of the left-hand lever 14a, and upward and to the left, in the case of the right-hand lever 14b. This results in a scissors arrangement of the two levers which ensures that the device has minimum bulk in the widthwise direction, namely in a direction perpendicular to the axes Xa and Xb and parallel to the plane P. The use of two levers also proves to be advantageous with respect to a single lever because it allows the effort applied by the user to be distributed over the two lateral uprights of the device. An alternative form with a single lever would thus have the disadvantage of transmitting this effort to either the left-hand or the right-hand upright alone, with a risk of unbalancing the device and potentially in certain circumstances resulting in breakage of the point of attachment of the lever to its upright. In the alternative form shown, this scissors arrangement of the levers 14a, 14b is, however, possible only if the left-hand and right-hand lateral uprights 13a and 13b are longitudinally offset, which means to say offset in a direction parallel to the axes Xa and Xb, as illustrated in FIGS. 2b and 2c. In the space separating the two levers 14a, 14b is housed a thrust bar 15 oriented perpendicular to the plane P, the direction Y defined by the thrust bar advantageously being kept equidistant from the axes Xa and Xb by means of a guide element 18. As illustrated in FIG. 1, the guide element 18 could notably consist of a hollow tubular element 18c inside which the thrust bar 15 slides, said hollow tubular element being connected to the left-hand 13a and right-hand 13b lateral uprights by a left-hand 18a and a right-hand 18b crossbar respectively. Fixed to the lower end of the thrust bar 15 is a compression plate 16 intended to be introduced into the container 20 as the thrust bar 15 gradually descends, thus compressing the waste contained inside said container. To this end, the compression plate 16 will advantageously have an external shape and size substantially identical to those of the base of the cylinder defined by the container so as to ensure uniform compression of all the waste. In the configuration depicted, this compression plate 16 has an external perimeter of oval shape the dimensions of which are slightly smaller than those of the upper opening 20a of the container 20. The thrust bar 16 is moreover connected at its upper end to the levers 14a, 14b by means of two connecting elements, a left-hand connecting element 17a and a right-hand connecting element 17b respectively. As illustrated in detail in FIG. 3a, each of the connecting elements 17a, 17b comprises a hollow tubular part of parallelepipedal shape inside which one of the levers slides, namely the left-hand lever 14a sliding inside the left-hand connecting element 17a, and the right-hand lever 14b sliding inside the right-hand connecting element 17b, said levers preferably having a rectangular cross section that complements that of the hollow tubular part. Said tubular part is connected pivotingly to the thrust bar 15 by means of a pin 17c housed inside a substantially cylindrical part 17d secured to the tubular part, said pin 17c defining a direction parallel to the axes Xa and Xb. The positioning of the cylindrical part 17d could be variable. In particular, as depicted in FIG. 1, this cylindrical part could advantageously be positioned inside the thrust bar 15 thus limiting the heightwise size of the device. Configured in this way, the connecting elements 17a, 17b are able to transfer the pivoting of the left-hand and right-hand levers 14a, 14b as a downward or upward movement of the thrust bar 15 and, therefore, of the compression plate 16 secured thereto, thus allowing the waste contained in the container 20 to be compacted.

(9) The proper compacting operation is illustrated in FIGS. 5a to 5d. In the position depicted in FIG. 5a, the compression plate 16 is kept in a raised position above the support plate 12 by the upward thrust applied by hand by the user to the handles 14c, 14d of the left-hand 14a and right-hand 14b levers respectively. This raised position opens up enough space between the compression plate 16 and the support plate 12 for a container 20 completely full of waste to be positioned therein, the waste coming all the way up to the upper end 20a of the container 20. Starting from this raised position, the compression plate 16 is progressively lowered until it presses down on the top of the waste, in the position of equilibrium depicted in FIG. 2b. In this position, the weight of the compression plate 16, of the thrust bar 15, of the connecting elements 17a, 17b and of the levers 14a, 14b is compensated for by the resistance of the waste to compression. It will be advantageous for such a position of equilibrium to correspond to the particular position depicted in FIG. 5b, in which the levers 14a and 14b are substantially aligned in the plane P1 defined by the axes of pivoting Xa and Xb. In order to compact the waste further, the user will then need to act on the handles 14c and 14d to cause a downward inclination of the levers 14a, 14b. During this movement, the lower edge 14i of each of the left-hand and right-hand levers comes to bear on a lower internal edge 17i of the hollow tubular part of the left-hand and right-hand connecting elements, thus causing the thrust bar and the compression plate secured thereto to move downward. This downward movement therefore causes a compaction of the waste in the container 20. The degree of this compaction will be dependent on the force applied by the user. FIGS. 5c and 5d in particular illustrate two specific positions of the levers 14a and 14b and of the compression plate 16 respectively for moderate compaction and for a relatively high degree of compaction of the waste. Once the compaction has been performed, the user will act on the handles 14c and 14d to return the levers 14a and 14b to the raised position depicted in FIG. 5a, thus allowing the container containing the compacted waste to be removed and potentially replaced with a container containing waste that has not been compacted. Thus, by raising the handles 14c and 14d the user will bring about an upward inclination of the left-hand and right-hand levers 14a, 14b in such a way that the upper edge 14j of each of the levers comes to bear on the upper internal edge 17j of the hollow tubular part of the left-hand and right-hand connecting elements 17a, 17b, thus causing the thrust bar and the compression plate secured thereto to move upward. During these upward and downward movements of the levers 14a, 14b, the left-hand and right-hand connecting elements 17a, 17b slide along their respective lever while pivoting about the pin 17c. That allows the thrust bar 15 to be kept in alignment with the hollow tubular element 18c throughout the upward and downward movement of the compression plate 16.

(10) Three possible alternative forms of embodiment of the left-hand and right-hand connecting elements described hereinabove are depicted in FIGS. 3b, 3c and 3d.

(11) In the alternative form of FIG. 3b, a single connecting element is used to connect the left-hand 14a and right-hand 14b levers to the thrust bar 15. This connecting element takes the form of a tubular rod 19 oriented parallel to the left-hand Xa and right-hand Xb axes of pivoting and fixed to the thrust bar 15 in such a way as to have a projecting part on two opposite sides of said thrust bar. The projecting parts of the rod 19 slide inside a slot 21 provided inside each of the left-hand and right-hand levers. Thus, during the downward and respectively upward pivoting of the levers 14a, 14b about their respective axis of pivoting, an upper edge 21j and respectively a lower edge 21i of the slot 21 comes to bear on the rod 19, thus causing the thrust bar 15 to move downward and respectively upward, causing the rod 19 to slide along the slots 21 of the levers 14a, 14b.

(12) In the alternative form of FIG. 3c, the left-hand and right-hand connecting elements each comprise a roller 22a, 22b of cylindrical shape connected pivotingly to the thrust bar 15 by means of a shaft 22c, each of the rollers being arranged inside an internal housing 23 of substantially parallelepipedal shape of the left-hand or right-hand lever, said shaft sliding inside a slot (not depicted) provided inside said left-hand or right-hand lever. Thus, during the downward and respectively upward pivoting of the levers 14a, 14b about their respective axis of pivoting, an upper edge 23j and respectively a lower edge 23i of the internal housing 23 comes to bear on the rollers 22a, 22b, thus causing the thrust bar 15 to be moved downward and respectively upward, and causing the rollers 22a, 22b to slide along the respective internal housing of the levers 14a, 14b.

(13) The alternative form in FIG. 3d is relatively similar to the alternative form in FIG. 3c. This alternative form is adapted to the circular tubular cross-sectional shape of the levers 14a, 14b. As a result, the left-hand and right-hand connecting elements take the form of rollers 24a, 24b of spherical shape sliding inside an internal housing 25 of tubular shape, the pin 24c connecting the rollers 24a and 24b itself sliding in a slot 26 formed along each of the levers 14a, 14b. Thus, during the downward and respectively upward pivoting of the levers 14a, 14b about their respective axis of pivoting, an upper hemispherical edge 25j and respectively a lower hemispherical edge 25i of the internal housing 25 comes to bear on the rollers 24a, 24b, thus causing the thrust bar 15 to move downward and respectively upward, and causing the rollers 24a, 24b to slide along the respective internal housing of the levers 14a, 14b.

(14) Reference is made to FIG. 4 which depicts a second possible embodiment for the compacting device according to the present invention.

(15) In this embodiment, each of the left-hand 14a and right-hand 14b levers is connected to the compression plate 16 by means of a distinct thrust bar, namely a left-hand thrust bar 15a and respectively a right-hand thrust bar 15b, which is connected fixedly at its lower end to the compression plate 16 and connected at its upper end to the left-hand lever 14a and respectively right-hand lever 14b by a left-hand connecting element 17a and respectively a right-hand connecting element 17b, said connecting elements being relatively similar to those used in the alternative form of FIG. 1.

(16) Thus, each of the left-hand and right-hand connecting elements 17a and 17b comprises a hollow tubular part of parallelepipedal shape inside which one of the levers slides, namely the left-hand lever 14a sliding inside the left-hand connecting element 17a, and the right-hand lever 14b sliding inside the right-hand connecting element 17b, said levers preferably having a rectangular cross section that complements that of the hollow tubular part. The tubular part of the left-hand connecting means 17a and respectively right-hand connecting means 17b is connected pivotingly to the left-hand 15a and respectively right-hand 15b thrust bar by means of a pin 17c, and respectively 17d, housed inside a through hole formed at the end of said left-hand 15a and respectively right-hand 15b thrust bar, and fixed at its two ends to a fork-shaped extension secured to the tubular part, said pin 17c, respectively 17d, defining a direction parallel to the axes of pivoting Xa and Xb of the levers 14a and 14b.

(17) Configured in this way, the connecting elements 17a, 17b are able to transfer the pivoting of the left-hand and right-hand levers 14a, 14b as a downward or upward movement of the thrust bars 15a and 15b respectively and, as a result, of the compression plate 16 secured thereto, thus allowing waste contained in the container 20 to be compacted. The thrust bars 15a, 15b will advantageously be guided in their translational movement in a direction perpendicular to the axes Xa and Xb by means of a guide element 18. As illustrated in FIG. 1, this guide element 18 may notably consist of a left-hand hollow tubular element 18c.sub.1 inside which the left-hand thrust bar 15a slides and of a right-hand hollow tubular element 18c.sub.2 inside which the right-hand thrust bar 15b slides, said hollow tubular elements 18c.sub.1 and 18c.sub.2 being connected to the left-hand 13a and right-hand 13b lateral uprights by a left-hand 18a and a right-hand 18b crossbar respectively.

(18) In another alternative form (not depicted) of the invention, the compression plate could be fixed removably to the lower end of the thrust bar or bars. In that way, the device of the present invention will be able to be adapted to suit the size and shape of the container containing the waste and/or the type of waste contained in said container. Thus, in the configuration depicted in FIG. 1, compression plates of square, rectangular or round external shape could be fixed in place of the oval shaped plate.

(19) Moreover, it will be advantageous also to equip the left-hand and right-hand levers (14a, 14b) with an extendable or removable part (14a, 14b) so as to allow them to be lengthened or shortened. This extendable part (14a, 14b) may advantageously be mounted telescopically or foldingly on a central part of said left-hand and right-hand levers (14a, 14b).