Attached-box type lift equipment for garbage trucks.

Description

1 / 8 DESCRIPTIVE REPORT “EQUIPMENT OF THE ATTACHED BOX TYPE FOR COLLECTION TRUCKS” Certificate of Addition of Invention BR 102024007265-0 Technical field and objectives

[001] This addendum certificate refers to a new configuration and a constructive variation applied to the box-type waste elevator installed on collection trucks.

[002] More precisely, it adds the application of a worm screw and hydraulic actuator to the towers of the trestle lifting mechanism. In addition, it provides for a reduced trestle size and the incorporation of linear guides for support and guidance of vertical movement. These characteristics improve mechanical strength and traction, allowing for a reduction in material used in manufacturing and, due to these factors, also allows the use of a single lifting tower in the assembly, which considerably reduces costs and allows for different application possibilities.

[003] In addition to these, the addition also proposes two alternative mechanisms for automatic tipping of the bucket - one for free-wheel rotation and one for gear rotation. These alternative mechanisms maintain the complete tipping of the bucket, as originally proposed, but eliminate the need for an electric motor, providing lower-cost alternatives for the assembly.

[004] Therefore, the present certificate has the following objectives: - Add two more robust and practical lifting mechanisms to the equipment (worm gear and actuator); Petition 870250058798, dated 10 / 07 / 2025, page 6 / 25 2 / 8 - Add a support and movement guide to the equipment using linear guides, aiming to provide better support for the trestle and better vertical movement; - To allow, with the above characteristics, a single-tower system; - Reduce production and equipment operating costs; - To enable the use of two pieces of equipment on the same truck that operate simultaneously or independently; - Add two alternative mechanisms for tilting the dump truck bed; - Eliminate the need for an electric motor to tilt the dump truck bed; - To improve the overall functioning and movement of the equipment; - Maintain its basic functionality with the technical advantages and operating system already provided in the original equipment. Description of the figures [ 005] Explained briefly up to this point, the invention will now be detailed through the attached figures, of which: Figure 1 - illustrates the equipment with a worm gear lifting mechanism installed on the implement of a collection truck; Figure 2 - Rear view of the equipment with the lifting mechanism in the worm gear configuration, including the linear guide; Figure 3 - Front view of the equipment in the configuration Petition 870250058798, dated 10 / 07 / 2025, page 7 / 25 3 / 8 mentioned; Figure 4 - detailed view of the equipment in the aforementioned configuration, where the trestle is shown without the left side support flap, in order to display the linear guide carriages; Figure 5A - Rear view of the beginning of a sequence of raising the trestle on the equipment, provided by the auger and guided by the linear guides. Here is shown the lower portion of the equipment, with the trestle in the lowest position; Figure 5B - a continuation of the previous figure showing the trestle in its initial upward path, where it can be seen that the support pulley runs along the stop rail supporting the bucket in the normal position; Figure 5C - a continuation of the previous figure, now showing the upper portion of the equipment, where the trestle is reaching the end of its upward stroke; Figure 5D - a continuation of the previous figure showing that the support pulley has reached the curved end of the track stop; Figure 5E - a continuation of the previous figure showing that, when running along the track, the support pulley promotes the gradual tilting of the bucket as the trestle moves upwards; Figure 5F - a continuation of the previous figure showing the bucket fully tilted backward, tilted on the axis of the support when it reaches the end of its travel, with the tilting promoted by the support pulley against the stop rail; Petition 870250058798, dated 10 / 07 / 2025, page 8 / 25 4 / 8 Figure 6 - Rear view of the equipment, showing a second configuration of the bucket tilting mechanism, where it is provided with a side toothed wheel, best shown in detail A; Figure 7 - Front view of the upper portion of the equipment, showing another element of the second configuration of the bucket tilting mechanism, where the tower also receives a toothed terminal for interaction with the toothed wheel, better shown in detail B; Figure 8 - Sequence of four images in side view, showing the trestle with the bucket in the second configuration of the tilting mechanism, where, upon reaching the upper limit of travel, the toothed wheel interacts with the toothed terminal, promoting its rotation and, consequently, the tilting of the bucket backwards; Figure 9 - Enlarged detail of the interaction between the gear wheel and the toothed terminal. Detailed description

[006] In accordance with the attached figures, the addition provides additional and / or alternative configurations for the support, lifting and tilting mechanism of the coupled box (20) in the lifting equipment (10).

[007] The inventor envisions that the parallel rails (11), hereinafter referred to as 'lifting towers' (11), each house a worm screw (100) or a hydraulic or pneumatic actuator. Of these, the worm screw (100) extends along the entire vertical length of the tower (11) and incorporates a lower (101) and an upper (102) end stop, and is also driven by a motor. Petition 870250058798, dated 10 / 07 / 2025, page 9 / 25 5 / 8 electric or hydraulic (14). Preferably, the electric or hydraulic motor (14) transmits motion to the worm screw (100) of the opposite tower via a transmission mechanism (103), preferably via reduction gearboxes, allowing the use of a single motor for both worm screws (100). Alternatively, the hydraulic actuator also has its actuating rod occupying the entire vertical extent of the tower (11).

[008] In this alternative configuration, the central stand (12) has its overall size reduced compared to the original configuration. Its pulleys (13) for guiding the movement in the towers (11) are removed and lateral supports (104) are added, in the form of a tab, whose end adopts a lifting terminal (105) coupled directly to the worm screw (100) or to the actuator rod. Obviously, in the worm screw configuration, the lifting terminal (105) is threaded, in a nut configuration, to interact with the worm screw, and in the actuator configuration, said terminal (105) is smooth to run along the rod or dedicated support.

[009] In any of the configurations, the lifting mechanism - original, by worm gear and / or by actuator - receives a composition of linear guides, whose rail or 'ruler' (106) is fixed to each tower (11) and through which runs a pair of sliding carriages (107), these being fixed to the trestle (12), preferably on the side flanges (104), to support and assist its vertical displacement. [ 01 0] In any configuration of the lifting mechanism, the use of only one tower (1 1) supporting the trestle (12) with attached bucket (2 0) is foreseen. Especially in the new worm gear (1 00) or actuator configurations, and especially those that receive the Petition 870250058798, dated 10 / 07 / 2025, page 10 / 25 6 / 8 linear guides, the mechanism is robust enough to support the weight of the full skip with just one tower. This capacity allows for reduced production costs of the assembly and reduced space required for installation. In addition, this single tower option allows for optional configurations, where it is possible to install two identical units (10) on a single truck (CA), side by side or on opposite sides of the skip, with the units (10) having either synchronized lifting mechanisms, using only one control panel, or independent, with individual controls. This dual configuration with independent controls promotes versatility and greater agility in waste collection, allowing for the collection of different types of waste and also the loading of one skip while the other is simultaneously being unloaded.

[011] In any of the configurations of the lifting mechanism, two alternative tilting mechanisms are provided for the coupled box (20), which is fixed to the shaft (16) of the frame (12) by means of bearings (15), as in the original configuration. These tilting mechanisms can be: • By free wheel: where each tower (11) is provided with a stop rail (108) with a curved end (109), this being a vertical guide of 'L' profile fixed to the side of the tower and whose upper end is curved backwards, in an open final section. In this configuration, the bucket (20) is provided with a rear axle fixed to the upper rear edge of the bucket and coupled to a support pulley (110), which is kept against the stop rail (108) to roll along its length as the box (20) moves. In this configuration, as illustrated in the sequence of figure 5, according to the trestle (12) Petition 870250058798, dated 10 / 07 / 2025, page 11 / 25 7 / 8 reaches the upper end of the support pulley (110) is limited and directed by the curved end (109) of the stop rail (108), locking its ascent and, consequently, causing the bucket (20) to tilt backward as the trestle (12) rises. • By gear: where each tower (11) is provided with a toothed terminal (111) near the upper end and where either the axle of the stand (16) or the rear side of the bucket (20) is provided with a fixed toothed wheel (112). The toothed terminal (111) and the toothed wheel (112) are aligned in such a way as to allow their interaction when they meet, that is, in such a way as to allow that, as illustrated in the sequence of figure 8, as the stand (12) reaches the end of its upward stroke, the toothed wheel (112) meets the toothed terminal (111) which promotes its rotation as it advances, causing the bucket (20) to tilt backwards.

[012] Maintaining the original function, in any of the configurations described here, the bucket (20) will tilt completely until it covers the upper opening (30) of the collector truck's body (CA).

[013] The drive system is also maintained as per the original, i.e. by dedicated control implemented in the equipment itself (10), control installed in the vehicle implement, control by free remote control or installed in the vehicle, or digital drive from a command in a dedicated application.

[014] The digital management system is also maintained, with means of weighing the volume of waste, means of remotely controlling the mechanism (motors) of the equipment (10), means of identifying the day and time of each waste collection operation, Petition 870250058798, dated 10 / 07 / 2025, page 12 / 25 8 / 8 means to identify the geolocation of the equipment (10), means for sending information, means for printing the weighing, means for issuing invoices and receipts and means of remote communication with a control center (wireless communication means and internet access). Thus, it will function in the same way as originally planned. Petition 870250058798, dated 10 / 07 / 2025, page 13 / 25

Claims

1 / 3 CLAIMS 1) “EQUIPMENT” coupled box lift for collection trucks, characterized in that the rails or lifting towers (11) each house a worm screw (100) or a hydraulic or pneumatic actuator, wherein the worm screw (100) and / or the actuator rod extends the entire vertical length of the tower (11) and incorporates a lower end stop (101) and an upper end stop (102), the worm screw (100) being driven by an electric motor (14), which transmits movement to the worm screw (100) of the opposite tower through a transmission mechanism (103), preferably through reduction gearboxes. 2) “EQUIPMENT” according to claim 1, characterized in that the central stand (12) has its pulleys (13) replaced by side supports (104), in the shape of a flange, whose end adopts a lifting terminal (105) coupled directly to the worm screw (100) or to the actuator rod, where in the worm screw configuration, the lifting terminal (105) is threaded for interaction with the screw, and in the actuator configuration the terminal (105) is smooth to run along the rod or dedicated support. 3) “EQUIPMENT” according to any of the preceding claims, characterized in that, in any of the configurations, the lifting mechanism receives a composition of linear guides, whose rail or 'ruler' (106) is fixed to each tower (11) and through which runs a pair of sliding carriages (107), these being fixed to the trestle (12), preferably on the side flanges (104). 4) “EQUIPMENT” according to any of the preceding claims, characterized by the fact that it uses only Petition 870260014113, dated 13 / 02 / 2026, page 6 / 8 2 / 3 a tower (11) supporting the trestle (12) with attached bucket (20), instead of a pair of parallel towers 5) “EQUIPMENT” according to the previous claim, characterized by the fact that it makes it possible to install two identical single-tower (11) equipment (10) on a single truck (CA), side by side or on opposite sides of the dump body, wherein these single-tower equipment (10) can have either their lifting mechanisms synchronized, using only one control panel, or independent, with individual controls. 6) “EQUIPMENT” according to any of the preceding claims, characterized in that the tilting mechanism of the coupled box (20) is of the free-wheel type: where each tower (11) is provided with a stop rail (108) with a curved end (109), this being a vertical guide of 'L' profile fixed to the side of the tower and whose upper end is curved backwards, in an open final section, wherein the bucket (20) is provided with a rear axle fixed to the upper rear edge of the bucket and coupled to a support pulley (110), which is kept against the stop rail (108) so as to roll along its length as the box (20) moves, where upon reaching the upper end of travel the support pulley (110) is limited and directed by the curved end (109) of the stop rail (108), locking its ascent and causing its tilting. 7) “EQUIPMENT” according to any of the preceding claims, characterized in that the tilting mechanism of the coupled box (20) is of the gear type: where each tower (1 1) is provided with a toothed terminal (1 1 1) near the upper end and where either the shaft of Petition 870260014113, dated 13 / 02 / 2026, page. 7 / 8 3 / 3 The trestle (16) or the rear side of the bucket (20) is provided with a fixed toothed wheel (112), wherein the toothed terminal (111) and the toothed wheel (112) are aligned in such a way as to allow their interaction when they meet, that is, in such a way as to allow that as the trestle (12) reaches the end of its upward travel, the toothed wheel (112) meets the toothed terminal (111) which causes it to rotate as it advances and tilts the bucket (20) backwards. Petition 870260014113, dated 13 / 02 / 2026, page 8 / 8

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