JP2016508103A - Hinged cover for waste collection box - Google Patents

Abstract

A cover for the waste collection box for pivotal mounting on the handle of the box includes a first side (16) including a first hole (18), a second side including a second hole (22). Side (20) includes a reinforcing wall (24) that is radially integral with the first side (16) over a first angular sector having an opening angle α of at least 60 ?, the reinforcing wall being pivotally It extends towards the second side (20) in parallel. The second side (20) is radially separated from the reinforcing wall (24) and the first side (16) over a second angular sector having an opening angle β of at least 200 ?. And it includes a first angular sector that allows flexibility when the cover is mounted on the handle. The invention also relates to a waste collection box comprising such a cover. [Selection] Figure 2

Description

  The present invention relates to the technical field of waste collection boxes including a cover pivotally mounted on a tank of boxes.

  The various components of this type of box are generally compression molded using thermoplastic materials obtained from a wide variety of sources (petroleum-derived polymers, plant components, recycled materials, etc.). They are usually colored by the addition of appropriate compounds. These various materials produce relatively large dimensional changes in the molded component.

  This often results in components that are not well matched together.

  In particular, the cover is generally pivotally mounted on the tank using at least two arms and a pivoting hinge. The distance between the two arms of the cover may be substantially different from the dimensions of the support integral with the tank that must pivot the two arms.

  In this case, in order to attach the cover, the arm needs to be twisted to create the hinge.

  In addition, however, the cover arm is sufficient to remain laterally stable so that the cover properly blocks the tank in the closed position and gives the user a feeling that the box is well built. Must be stiff.

  Thus, the cover arm is rigid and is often designed to have a U-shaped cross section with a flatbed. And it makes the deformation in the lateral direction (parallel to the flat table) very difficult.

  When the hinge support dimensions formed integrally with this tank outside the tank are very different from the distance between the arms due to the dimensional change during molding, the hinge mounting is done by twisting the arms and for clearance Very high force is required to compensate or allow for installation. This can result in warping or breakage of the arm, or it can cause deformation with weakening of the arm or hinges, or making it extremely difficult if not impossible to install There is.

  Therefore, it is extremely difficult to provide a specific degree of freedom for pivoting both arms in order to maintain lateral stiffness when rotating the cover while adapting to dimensional changes.

  The present invention aims to remedy these disadvantages by providing a cover for a waste collection box which preferably maintains substantial flexibility after installation, while maintaining substantial lateral stiffness after installation. To do.

To this end, the present invention is a cover for a waste collection box, particularly suitable for being pivotally mounted on a tank of boxes around a pivot, outside the range of the surface of the cover closing the tank. At least a first pivot arm extending, the pivot arm comprising:
-A first side forming an angle greater than 65 ° with respect to the pivot, comprising a first through hole formed in the first side, the first hole being A first side shaped to receive a member for pivotally mounting the cover on the tank;
-A second side forming an angle with respect to the pivot axis of greater than 65 °, preferably equal to 90 °, comprising a second through hole formed in this second side; The second through hole is disposed on the opposite side of the first hole in the direction of the pivot and is shaped to receive the mounting member;
A cover wall reinforcement wall integral with the first side with respect to the pivot axis over at least a first angular sector having an opening angle α of at least 60 °, the reinforcement wall partly around the pivot axis Extending parallel to the pivot to the second side by wrapping, the reinforcing wall extends over at least the largest part of the first angular sector and preferably over its entire length of at least 10 mm. A reinforcing wall having an axial dimension,
The second side is separated radially from the reinforcing wall as well as from the first side over a second angular sector having an opening angle β of at least 200 ° with respect to the pivot, the second angular sector being A cover comprising a first angular sector.

  Separation of the second side with the reinforcing wall over the first angular sector with a large opening angle increases the radial flexibility of the cover arm end, so that it is on the box tank handle. Allowing it to be easily installed. By maintaining a first side having a reinforcing surface extending across this first angular sector parallel to the pivot axis, avoiding significant radial displacement of the cover, this reduction in axial flexibility is The cover arm tear-off strength is increased.

  Preferably, the second side is radially separated from any other wall of the cover extending axially beyond a length of at least 7 mm parallel to the pivot axis over at least a portion of the second angular sector. The

  In addition, the second side extends parallel to the pivot and is radially separated from any other wall of the cover located within 10 mm from the second through hole.

  In general, the first side, the second side, and the reinforcing wall form a U-shape with a flatbed in the first angular sector in the axial plane cross section, and the first and second side cross sections. Corresponds to two U-shaped branches, possibly forming an angle of at most 30 ° between them, the U-shaped cover being reinforced with the second side in this first angular sector Interrupted by the fact that it includes a slot between the wall.

  A U-shaped break with a slot on one of the sides provides significant axial flexibility. This flexibility is greatly reduced due to the uninterrupted U-shape.

  Preferably, the reinforcing wall wraps around the axis over a third angular sector having an opening angle γ of greater than 40 °, preferably 60 ° to 140 °. This winding of the reinforcing wall increases the cut strength of the arm.

  Generally, the second side is separated from the reinforcement wall by a slot extending along the arc of the circle in the third angular sector.

  Preferably, the slot between the second side and the reinforcement wall in the first angular sector extends beyond a radial height of at least 1.8 mm, preferably 2-5 mm. Compared to a too narrow slot implementation, this facilitates molding and increases the durability of the mold.

  Typically, it includes a second pivot arm that extends outside the surface of the cover that closes the tank, so that it can be pivotally mounted on a handle integral with the tank, the handle being first along the pivot. Between the first arm and the second arm, the first side is disposed relatively outward with respect to the second arm, and the second side is relatively inward with respect to the second arm. Placed in. Therefore, the less rigid side (second side) abuts against the handle and not against the external part of the hinge.

  Most conveniently, one of the first hole and the second hole has a larger diameter than the other holes. Thus, the mounting member can be inserted to abut against the side where the smaller diameter hole is formed. In general, the hole with the larger diameter is the first hole.

  Typically, each of the through holes has a radius of at least 1 mm.

  In general, the opening angle α of the first angular sector is between 80 ° and 160 °, thereby increasing the radial flexibility of the arm.

  The opening angle β of the second angular sector is advantageously between 220 ° and 320 °, which also increases the radial flexibility of the arm.

  The invention also relates to a waste collection box, which preferably has a capacity of more than 100 liters, characterized in that it includes a cover as described above.

  The box generally includes a tank, particularly a cover as described above having a hole (or first hole) with a diameter larger than that of other holes, and a member for pivotally mounting the cover on the tank. The member has a diameter axis that fits a hole having a smaller diameter, and a first shoulder having a radial dimension on the axis that is larger than the diameter of the hole having a larger diameter, and smaller A pivot comprising a second shoulder (36) having a radial dimension larger than the diameter of the hole having a diameter but smaller than the diameter of the hole having a larger diameter.

  This allows the mounting member to abut against the side having a smaller diameter hole using the second shoulder.

  Conveniently, a first shoulder is formed against or on the first side when the mounting member is inserted into the first hole and the second hole. The second shoulder portion against the second side portion or against the shoulder portion formed on the second side portion. The distance between the first shoulder and the second shoulder is determined.

  Under these conditions, the mounting member can abut against each of the two sides. And it increases the axial stiffness of the arm after installation.

  The invention will be better understood by reading the attached drawings, which are given by way of example only and are not limiting in any way.

FIG. 1 shows a plan view of a waste collection box according to the invention during installation. FIG. 2 shows a perspective view of the arm end of the cover according to the invention. FIG. 3 shows an axial view of a portion of the arm of the cover of FIG. FIG. 4 shows a cross-section of the hinge of the cover arm of FIG. 2 mounted on a support connected to a box tank. FIG. 5 shows a perspective view of the hinge of FIG.

  Referring to FIG. 1, it shows a plan view of the waste collection box 2. The waste collection box 2 includes a tank 4 that is visible by its upper edge 6 and by a handle 8 that extends outside the tank 4. This handle 8 forms a support for the hinge with the pivot arm 10 of the cover 12 of the box 2 at each of its ends. FIG. 1 also shows the attachment member 14 of this hinge.

  Each tank handle 8 includes two end shoulders for abutting and attaching the pivot arm 10 of the cover. The distance D between these shoulders may vary. This dimensional change is due to materials obtained from different sources and / or due to special color adducts, away from the manufacturing tolerances of the mold used to produce the tank.

  Similarly, the corresponding distance between the arms 10 of the cover for pivotally mounting these arms on the handle 8 may vary significantly. If this distance is significantly different from the value D, the end distance of the arm 10 must be adjusted to this value D to allow attachment. In some cases, the difference in dimensions is large (eg, 10-12 mm).

  In the prior art, this adjustment is a risk of unexpected deformation, warping, breakage, or significant difficulty for the operator installing the box due to the manufacturing stiffness of the cover arm to prevent lateral displacement of the cover. With “twisting” at least the end 10 of the arm.

  According to the present invention, the cover arm has substantially improved mounting flexibility, while maintaining lateral stiffness after mounting, as will be described later.

  Referring to FIG. 2, it shows a perspective view of the end of the pivot arm 10 of the cover. The general cross section of this arm is U-shaped with a flat base, giving it a high lateral stiffness. The term “U-shape” also includes, according to the invention, a shape in which the branches of U form an angle of at most 30 ° between them.

  The arm end has a first side 16 that includes a first hole 18 that is used to pivotally attach the arm 10. The arm also has at its end a second side 20 that includes a second through hole 22 that is used to pivotally attach the arm 10. The two sides are not necessarily parallel and may form an angle of at most 30 ° between them. However, the first and second holes are shaped to receive the attachment member 14. Thus, these two round holes are on opposite sides and allow insertion of the attachment member 14 along the pivot axis of the cover. It passes through the center of the circle corresponding to the first hole 18 and the second hole 22.

  The first and second sides extend to form two branches of U in cross section. By means of a cover arm reinforcement wall 24 which is radially integral with the first side 16 and extends towards the second side 20 parallel to the pivot by partially wrapping around the pivot. The flat bed is formed.

  Due to the presence of a peripheral slot 26 with a width of 2 mm, the second side 20 is separated from the reinforcing wall 24 over a wide angular sector.

  Referring to FIG. 3, it shows a portion of the second side 20 in an axial view with respect to a pivot passing through point O and perpendicular to the plane of FIG.

  This figure also shows that because of the peripheral slot 26, the second side 20 is separated from the reinforcing wall 24 over an angular sector having an opening angle α.

  In addition, the second side 20 extends radially from both the first side 16 and the reinforcing wall 24 over a very wide angular sector with an opening angle β covering the first angular sector with the opening angle α. Separated (not integrated). Thus, the flexibility of the second side shaft is significantly increased.

  FIG. 3 also shows that the reinforcing wall 24 wraps circumferentially around the pivot axis of the cover, like the slot 26, over a third angular sector with an opening angle γ included in the first angular sector. However, the circumferential feature of the wrap is not essential. And the distance to the axis of the reinforcing wall 24 like that of the slot 26 can vary.

  The first side 16 of the arm 10 maintains a certain degree of rigidity in the axial direction due to the fact that it is integral with the reinforcing wall 24. And this wall further provides increased cut strength. However, the stiffness of this first side 16 in the axial direction is significantly reduced compared to prior art designs where no slot 26 was present. In this conventional design, the first side 16, the second side 20, and the reinforcing wall 24 joining these two sides (without the unconnected slot 26 with the second side). The U-shape formed extended the arm's very stiff U-shape over a wide angular sector with an opening angle α at the end of the arm 10. Therefore, axial deformation of the arm ends was very difficult and required strong forces that could lead to unexpected deformation of the arm, risk of weakening, or even failure of this arm.

  Accordingly, the slot 26 between the second side and the reinforcing wall 24 significantly increases the axial flexibility of the first side and significantly increases the axial flexibility of the second side. Increasing and thus significantly increasing the axial flexibility of the arm 10 generally at its ends.

  The axial dimension of the reinforcing wall 24 is generally at least 10 mm over this first angular sector and is typically between 15 mm and 35 mm. The angle α is generally greater than 60 °, preferably between 80 ° and 160 °. The angle β is generally greater than 200 °, preferably between 220 ° and 320 °. The angle γ is generally greater than 40 °, preferably between 60 ° and 140 °.

  The third angular sector with the opening angle γ is included in the first angular sector with the opening angle α and is itself included in the second angular sector with the opening angle β.

  Referring to FIG. 4, it shows one end of a cover arm 10 in an axial plane cross section, pivotally attached to one end of a handle 28 integral with the box tank.

  The mounting member 14 is inserted along the pivot of the first hole on the first side 16 and then on the second hole on the second side 20 and then fixed to the sleeve of the handle 28 having the teeth 30. It was done. The attachment member 14 is thus integral with the handle 28 and forms a pivot to allow the cover to pivot about the handle 28.

  The mounting member 14 includes a shaft and a first end shoulder 32 that abuts against the external part 34 of the arm 10 integral with the first side 16. This first shoulder has a larger radial dimension than the diameter of the first hole having a larger diameter formed on the first side 16.

  The attachment member 14 is larger than the diameter of a hole having a smaller diameter (ie, a second hole formed on the second side 20), but having a larger diameter (first side 16). A second shoulder 36 having a radial dimension smaller than the diameter of the first hole formed thereon. The second shoulder portion 36 abuts against the second side portion 20.

  Accordingly, the cover arm abuts against the attachment member 14 at both the first shoulder portion 32 and the second shoulder portion 36.

  After attachment and tightening of the hinge, the second side 20 that is pushed by the second shoulder 36 abuts against the shoulder 38 on the end of the handle 28. Therefore, the pivot axis of the pivot arm is held sufficiently, i.e., giving the cover a high axial stiffness. The cover then pivots for each part of the cover in a given radial plane without "shaft float", i.e. without the possibility of significant axial displacement.

  Therefore, high radial flexibility of the arm during installation and low flexibility after installation can be obtained at the same time. The cover is then better fitted on the tank, giving the user a feeling that the box is mechanically well designed.

  Referring to FIG. 5, it shows a perspective view of the hinge of FIG. In addition to the components already described, FIG. 5 also shows a handle arm 40 whose end conveniently forms a shoulder 38 at the end of the handle 28.

  The present invention is not limited to the described embodiments, and other embodiments will be apparent to those skilled in the art. In particular, the first and second sides can be reversed. The first side is then separated from the reinforcing wall integral with the second side. The stiffer side is then the second side located on the handle side. A waste collection box (eg, 4 arms and 2 handles or more) having a cover with 2 or more arms can also be used.

Claims (16)

A cover (12) for a waste collection box (2), the cover (12) being adapted to be pivotally mounted on the tank (4) of said box around a pivot, said tank (4 At least a first pivot arm (10) that extends outside the range of the surface of the cover.
A first side (16) forming an angle greater than 65 ° with respect to the pivot, the first through hole (18) formed in the first side (16) The first side (16), wherein the first hole (18) is shaped to receive a member (14) for pivotally mounting the cover (12) on the tank.
A second side (20) forming an angle with respect to said pivot axis of greater than 65 °, preferably equal to 90 °, formed on this second side (20) Including a second through hole (22), the second through hole (22) being arranged on the opposite side of the first hole (18) in the direction of the pivot axis, to attach the mounting member (14) A second side (20), shaped for receiving,
A reinforcing wall (24) of the cover arm, integral with the first side (16) with respect to the pivot, over at least a first angular sector having an opening angle α of at least 60 °, 24) extends towards the second side (20) parallel to the pivot by partially wrapping around the pivot, the reinforcing wall being connected to the first angular sector A reinforcing wall (24) having an axial dimension of at least 10 mm over at least the largest part of and preferably throughout
The second side (20) extends from the reinforcing wall (24) as well as from the first side (16) over a second angular sector having an opening angle β of at least 200 ° with respect to the pivot axis. A cover (12), characterized in that it is radially separated and this second angular sector comprises said first angular sector.   The second side (20) has a radius from any other wall of the cover that extends axially beyond a length of at least 7 mm parallel to the pivot axis over at least a portion of the second angular sector. The cover of claim 1, separated in direction.   The second side (20) extends parallel to the pivot and is radially separated from any other wall of the cover located within 10 mm from the second through hole (22). The cover according to claim 1 or 2.   The first side (16), the second side (20), and the reinforcing wall (24) form a U-shape having a flat base in the first angular sector in a cross section of the axial plane. , The first and second side cross-sections, corresponding to the two branches of the U-shape, probably form an angle of at most 30 ° between them, the U-shape being the cover ( 5) Interrupted by the fact that 12) includes a slot (26) between the second side (20) and the reinforcing wall (24) in this first angular sector. Cover.   The reinforcing wall (24) wraps around the axis over a third angular sector having an opening angle γ greater than 40 °, preferably 60 ° to 140 °. The cover according to item.   The second side (20) has a generally circular profile separated from the reinforcing wall (24) by a slot (26) extending along an arc of a circle in the third angular sector. 5. The cover according to 5.   The slot (26) between the second side (20) and the reinforcing wall (24) in the first angular sector has a radial height of at least 1.8 mm, preferably 2-5 mm. The cover of claim 4 extending beyond.   Including a second pivot arm extending outside the surface of the cover that closes the tank, so that it can be pivotally mounted on a handle (28) integral with the tank (4), the handle being , Disposed along the pivot axis between the first arm (10) and the second arm, the first side (16) being disposed relatively outwardly with respect to the second arm. The cover according to any one of claims 1 to 7, wherein the second side (20) is arranged relatively inward with respect to the second arm.   The cover according to any one of the preceding claims, wherein one of the first hole (18) and the second hole (22) has a larger diameter than the other holes.   10. A cover according to claim 8 or 9, wherein the larger diameter hole is the first hole (18).   11. The cover according to claim 1, wherein each of the through holes (18, 22) has a radius of at least 1 mm.   The cover according to any one of claims 1 to 11, wherein the opening angle α of the first angular sector is between 80 ° and 160 °.   The cover according to any one of claims 1 to 12, wherein the opening angle β of the second angular sector is between 220 ° and 320 °.   Waste collection box (2), characterized in that it comprises a cover according to any one of claims 1 to 13, preferably a waste collection box with a capacity of more than 100 liters (2).   9. A tank (4), a cover (12) according to claim 8, and a member for pivotally mounting said cover on said tank, said member having a diameter shaft that fits said hole having a smaller diameter. , And a first shoulder (32) having a radial dimension greater than the diameter of the hole (18) having a larger diameter on the axis, and of the hole (22) having a smaller diameter 15. A pivot comprising a second shoulder (36) having a radial dimension larger than the diameter but smaller than the diameter of the hole (18) having a larger diameter. In the box.   When the mounting member is inserted into the first hole (18) and the second hole (22), the first shoulder is against the first side (16) or this Abuts against a shoulder (34) formed on the first side (16) and the second shoulder (36) against the second side (20) or The distance between the first shoulder (32) and the second shoulder (36) is determined so as to abut against the shoulder formed on the second side. The box according to claim 15.

Images