JPS58197101A - Method and mechanism of moving container - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanism for moving a container from an upright position to an ejection position. More particularly, the present invention relates to a garbage truck that lifts a container from an upright position on one side of the vehicle to a reversing position on the opposite side of the vehicle for discharging the contents of the container into a garbage receiving chamber of the vehicle. Regarding the mechanism attached to the.

Conventional mechanisms for lifting containers onto garbage trucks are shown in US Pat. Nos. 4,227,849, 3,910,434 and 3,773,197. Such conventional mechanisms have relatively complex structures and require a relatively long time to operate through the evacuation cycle.

As will be apparent from the following description of the invention, the evacuation mechanism of the present invention is capable of operating through its evacuation cycle in a relatively short period of time compared to conventional mechanisms. Additionally, the mechanism of the present invention is relatively simple in construction and occupies a relatively small longitudinal sweep behind the garbage truck canopy. Other objects and advantages of the arrangement according to the invention will become apparent from the detailed description below.

The mechanism according to the invention utilizes the combination of relatively few simple parts to move a container from an upright position to an ejection position in a relatively short amount of time. The mechanism includes a support frame and a container lift supported from the support frame by a gripping member.

A container gripping means of conventional design is attached to one end of the lift arm. A guide means is supported from the frame assembly and is adapted to engage and guide movement of the lift arm.

A first power means is supported from the frame assembly and operatively connected to the lift arm. The first power means is adapted to move the lift arm between a position in which the container is gripped in an upright position and a position in which the container is turned over to drain the contents. A second power means is provided for moving the lift arm such that the end of the lift arm on which the gripping means is attached is moved in a direction substantially horizontal to the surface on which the container stands; The operator then moves the gripping mechanism laterally into a position adjacent to the upright container so that the container can be gripped and lifted throughout the ejection cycle.

The evacuation mechanism of the present invention is designated generally by the reference numeral 10 and diagrammatically shown in FIG. 1 by a dotted box. In one embodiment of the invention, ejector mechanism 10 is mounted to vehicle 12 adjacent to and directly behind the vehicle's cab 14, as shown in FIG. The vehicle 12 is equipped with a storage chamber 15 of suitable design for receiving the waste discharged from the container 62 by the discharge mechanism 10. The garbage discharged into the storage chamber 15 is periodically transported into the main body 16 of the vehicle 12 by an appropriate mechanism (not shown). Although the present discharge mechanism is specifically designed for discharging trash into garbage trucks, it can also be used in other useful applications.

2-8, the ejection mechanism of the present invention includes a frame assembly 18, a lift arm 20, a track cylinder 22, a lift cylinder 24, a link member 26,
and the basic parts of the guide track assembly 28.

Frame assembly 18 includes vertically extending legs 30, generally horizontal legs 32 extending from outer legs 60, and downwardly angled portions 34 at the ends of legs 62. Frame assembly 18 also includes a horizontally extending base member 36 for mounting the frame assembly on Sharn-3B of vehicle 12. The means for attaching the seven frame assembly 18 to the seven yarn no. 68 may be by any suitable method, such as by welding.

The lift arm 20 is also supported by a horizontal leg 62 of the frame assembly 18 by a link member 26 .
6 is pivotally connected to the frame at its upper end by a pin 40,
Further, its lower end is pivotally connected to the lift arm 20 by a pin 40.

Lift arm 20 is guided by track assembly 28 during its evacuation cycle. Truck assembly 2
Reference numeral 8 denotes a track member 44 in the form of a slotted box beam, and a track member 44 for pivotally connecting the track assembly to the leg 34 of the frame 18 by a pin 48.
4 includes a no racket 46 provided at the upper end. A roller member 5° is rotatably mounted on lift arm 20 and positioned for vertical movement within track member 44 as best shown in FIG.

The lift cylinder 24 has its lower end pivotally connected to the end of the lift member 20 by a pin 52, and its upper end pivotally connected to the horizontal leg 2 of the frame 18 by a pin 54.

The track cylinder 22 has one end pivotally connected to the leg 3o of the frame assembly 18 by a pin 56, and the other end pivotally connected to the track assembly 28 by a pin 58.

The ejection mechanism includes a container gripping mechanism 60 for gripping and releasing the container 62 for sipping. The gripping mechanism 60 (see FIG. 1) includes a pair of container gripping arms 64, 64 pivotally mounted on a support arm 65, which is secured to the end of the lift arm 20. The arm 64 is a grip cylinder 66
The container is moved in an arc between the open position (dotted line) and the container clip position # (solid line). The cylinder 66 is directly connected to one arm 64, and the movement of the arm is transmitted to the other arm 64 by a pair of head gears 67. The specific structure and operation of gripping mechanism 60 do not form part of the present invention and will not be described in detail below. Another example of a one-shot gripping mechanism for gripping and opening a trash container is shown in U.S. Pat. No. 4,227,849.

The trash container 62 can be of any suitable design. The container 62 shown in the drawings includes a garbage container body 68 and a cover member 70 pivotally attached to the top Ti 15 of the body. The arm of the main body 68 is the container 62
It has a downwardly directed lower end 72 to be engaged by the arm when moved into gripping engagement with the arm. The particular construction of container 62 does not form part of the present invention and therefore will not be described in detail below.

The operation of the evacuation mechanism 10 will be explained in connection with the simple hydraulic control circuit shown in FIG. However, the ejection mechanism 10
can also be controlled by hydraulic circuits other than the one shown in FIG.

The circuit of FIG. 9 is merely an example of a circuit capable of effectively operating the evacuation mechanism 10. In a preferred embodiment, the control Parnoa 4.8 shown in FIG.
2 and 86 are connected to the cab 14 of the vehicle 12 with a remote actuation system (not shown) positioned within the cab.
Therefore, the operator does not have to go outside the cab to operate the ejection mechanism 10.

If there is a discharge mechanism in Section 2, the garbage truck 12 is stopped facing the container 62 with the grip mechanism 60 separated from the container 62.

At the first step, the operator activates Parnoir 4 by pressing downward on Parzbar 7). This is the pump 76 and the pressure fluid conduit 78.80.11
4.88 to port P of pulp 74.

Fluid flows through Parnoa 4 from port P to port B and then back through conduit 90 to track cylinder 22.

This extends the track cylinder 22 so that the gripping mechanism 60 is moved into position adjacent to the container 62. Exhaust fluid from cylinder 22 flows through conduit 92 to port A of pulp 74 and then through pulp 74 from port A to port T and then through conduits 96, 98 and 100 to oil tank 94.

The next step is to close grip arm 64.

This is done by pulling the valve handle back to engage the pulp 82. This causes fluid under pressure to flow from the pump 76 back through the conduits 78, 80, 114, 122 and into the pulp P of the pulp 82. Fluid flow flows from port P to port A and then through conduit 104 to the grip cylinder 660 rod end. This causes the grip/linder 66 to be retracted around the container 62 (closing the C-grip arm 64). The exhaust fluid from the cylinder 66 flows through conduit 102 to port B of the Tehalp 82 and then returns the pulp 82 from port B. It flows into port T and through conduits 106, 98 and 100 into oil tank 94.

The next step is to move the ejection mechanism through the ejection portion of the ejection cycle. This is done by the operator actuating the pulp 86 by pulling back the pulp handle on the pulp 86. This carries fluid from pump 76 to conduit 78.80.11
4.116 to port P of pulp 86.

Fluid flows from port P to port B of pulp 86 and then through conduit 108 to Rifton ring 24. This extends the lift cylinder 24 and operates the ejection mechanism 10 through the ejection portion of the ejection cycle as shown in FIGS. 4-8. Discharge fluid from cylinder 24 flows through conduit 110 to port A of pulp 86 and then through mill 7'86 from port A to port T and through conduit 112.98.100 to tank 94. flows to When the mechanism 10 reaches the position shown in FIG.

The handle of pulp 86 is pushed forward to return the container. This allows fluid to flow from pump 76 to conduit 78.8.
0.114.116 to port P of pulp 86. Fluid flows from port P of pulp 86 to port A and then through conduit 110 to the rond end of cylinder 24. As a result, the cylinder 24 is retracted,
The ejection mechanism 10 is moved from its ejection position (FIG. 8) to its lower position (FIG. 4).

When the ejection mechanism 10 reaches the final position of its downward movement (
Selective pulp 118 in conduit 110 is acted upon (preferably at least 12 inches of downward movement). This allows fluid flowing into the /linder 12 to be diverted through conduit 120 to tank 94. This is the ejection mechanism 10
and causes the container 62 to float approximately 24 inches of final travel, thereby preventing the container from falling to the ground with a thud. Valve 118 (only shown in FIG. 9) is actuated automatically by a suitable device and is contacted, for example, by a suitable part of the ejection mechanism when the ejection mechanism reaches the last part of its downward movement. This is done by mechanical contact.

The next step is to open the gripping arm 64 to release the container 62 from the ejection mechanism. This is done by actuating valve 82 by pushing the pulp handle forward. This causes pressurized fluid to flow from pump 76 through conduits 78, 80, 114, 122 to port P of valves 8,2. Fluid flows from port P to port B and then through conduit 102 to cylinder 66. This extends the grip 7 cylinder 66 and releases the grip arm 64, thereby opening the container 62. Exhaust fluid from cylinder 66 flows through conduit 104 to port A of pulp 82 and then through valve 82 from port A to port T and through conduits 106, 98 and 100 to tank 94.

The final step in the evacuation cycle is to return gripping mechanism 60 to its initial position as shown in FIG. This can be done by pulling back the valve handle.
This is done by activating the . This causes pressure fluid to flow from pump 76 through conduit 78.80.114.88 to port P of valve 74. Fluid is valve 7
flows from 4-)P through 4 to port)A, then through conduit 9
2 to the track cylinder 22. This will cause the cylinder 22 to move back to the position shown in Figure 2.

The bft body from the truck cylinder 22 flows to port B of valve 74 and then follows valve 74 from port B to port T and then to conduits 96, 98 and 10.
0 and flows into tank 94.

The operator then moves the vehicle to the next container and repeats the action of the grip mechanism 1o described above.

The operation of the ejection mechanism 10 assumes the initial state shown in FIG. In such a situation, it is necessary to first extend the track cylinder 22 until the gripping mechanism 60 is moved into position adjacent the container 62. The distance that track cylinder 22 must be extended depends, of course, on how close the operator wants vehicle 12 to be with respect to container 62.

Figures 6, 7 and 8 show the track cylinder in its fully extended position (approximately 66 inches in the preferred embodiment). FIG. 5 shows the case where the truck cylinder 22 is partially extended, and FIG. Indicates that it is not necessary. Experienced drivers often move the vehicle to the 4th position.
It can be positioned as shown in the figure, so that the action of the track cylinder can be omitted at the beginning and end of the ejection cycle. This is the preferred method of operation as it reduces the overall operating time.

One of the important advantages of the ejection mechanism of the present invention is that it performs a substantially uniform ejection motion whether the track cylinder is fully extended, partially extended, or not extended at all. It is something that can be done. In other words, the ejection mechanism 10 moves the container 62 to substantially the same ejection position (FIG. 8) with respect to the vehicle regardless of the degree to which the truck cylinder is extended. Similarly, the emptied container 62 is lowered onto the ground at the same location from which it was lifted.

From the above, the ejection mechanism of the present invention can operate in a relatively short time compared to conventional mechanisms throughout its ejection cycle, and the entire operation can be performed by one operator in the cab of the vehicle. You will see what is accomplished by the creator. Furthermore, the mechanism according to the invention has a relatively simple structure and requires a relatively small longitudinal space behind the cab of the vehicle.
close the door.

Also, the overlapping parts of the machine h'4 of the present invention are comprised of link members, unlike slide members. This simplifies the piping configuration for the hydraulic cylinder and only [
1 Requires flexibility for old r.

The lift mechanism also acts to cause most containers to undergo a chipping motion at the top of the arc of ejection motion.

Furthermore, the mechanism of the present invention is designed such that the benefit of mechanical lifting is constant throughout the discharge cycle, i.e., if the container is first lifted above the pond surface, the remainder of the discharge cycle is completed. It is designed to.

[Brief explanation of the drawing]

FIG. 1 is a side view of a fixed garbage collection vehicle shown in FIGS. 2 to 8 and constructed in accordance with the present invention and equipped with a container ejection mechanism (shown diagrammatically); The figure shows line 2 in Figure 1.
Figure 3 is a vertical cross-sectional view taken along line -6 in Figure 2, Figures 4 to 8
Figure 9 is a series of partial lines similar to Figure 2 showing the various positions of the ejection mechanism as it moves through its ejection cycle; Figure 9 is a partial diagram of the hydraulic control circuit for the ejection mechanism; It is. % Applicant: The Hale Company, Patent Attorney: Kyo Asa, Santsutsu (4 others), :: ' Purity of the drawings, no changes to 'fj' in the publication) Procedures Amendment Book Patent Office Sekii Indication of Wakasugi Kazuo 1 case Showa ke patent application No. 1.../) YuQ Relationship with the amended case Patent applicant's address A, 11 d] Hey, shi, boo 71, ji-4 agent

Claims (1)

Claims: (1) A method for moving a container from an upright position to a repeated pulling position for ejecting the contents of the container, comprising: ia) one end of a lift arm supported from an upper support; fb) gripping the container in an upright position by a gripping mechanism mounted on the container; and the swinging is caused by applying a pressing force to an end of the lift arm opposite to the end to which the grip mechanism is attached. (2) The method according to item 1, wherein the swinging movement of the lift arm is guided by a track member that is slidably engaged with the lift arm and supported from an upper support. (3) A mechanism for moving a container from an upright position to a discharge position, the mechanism comprising: (a) support frame assembly means; and (b)
a lift arm supported from the frame assembly; (C) support means for supporting the lift arm from the frame assembly means; and (d) support means mounted on the lift arm and configured to operate in a container gripping position and a container release position. (e) guide means supported from said frame assembly for engaging said lift arm and guiding movement of said lift arm; +f) a container gripping means supported from said frame assembly; ? operably connected to said lift arm? A means for moving the lift arm between a position for grasping a container in a vertical VF position and a position for returning the container for ejection. It is equipped with a moving mechanism. (4) The mechanism according to clause 3, wherein the container grip means is attached to one end of the lift arm, and the power means is pivotally attached to the other end of the lift arm. (5) A mechanism according to paragraph 4, wherein one end of the guide means is pivotally connected to the frame assembly, and the guide means engages the lift arm intermediate the ends of the lift arm. (6) the lift arm support means is in the form of a link member, one end of which is pivotally connected to the frame assembly means, and the other end of which is pivotally connected to the lift arm intermediate the ends of the lift arm; Mechanism by term. (8) A mechanism according to clause 6, wherein said guiding means is in the form of a track member adapted to engage rollers mounted on said lift arm. (8) For moving a container from an upright position to a discharge position A mechanism comprising: (a) support frame assembly means and a lift arm; (c) support means for supporting the lift arm from the frame assembly means; and (d) attached to one end of the lift arm. (e) a guide supported from the frame assembly and adapted to engage and guide movement of the lift arm; (f) first means supported from said frame assembly and operatively connected to said lift arm, said means for gripping a container in an upright position; (g) a first power means adapted to move the container between a position and a position in which the container is turned over for evacuation of the contents; (g) a first power means supported on said support frame assembly and acting on said guide means; a second power means coupled to said lift arm for moving said lift arm, on which said grip means is attached, in a direction parallel to the surface on which said container stands; and a second grip means for holding the container. The mechanism of clause 8, wherein the mechanism is pivotally attached to the lift arm at an end opposite to the end on which it is mounted. (10) one end of the guide means is pivotally attached to the frame assembly, and the guide means A mechanism according to clause 9 for engaging the lift arm at a midpoint between its ends. (12) The mechanism of claim 10, wherein the guide means is in the form of a track member adapted to engage a roller mounted on the lift arm. (13) A mechanism for moving a container from an upright position to a discharge position, wherein (a) includes a leg extending vertically in the Y direction and a leg extending horizontally in a V direction from the upper end of the vertically extending leg. support frame assembly means; fb) a lift arm supported by the horizontal leg of the frame assembly means; (C) support means for supporting the lift arm from the horizontal leg of the frame assembly means; (d) container grip means mounted on one end of the lift arm and adapted to move between a container grip position and a container release position; and Ie) supported by horizontal legs of the frame assembly and engaged with the lift arm. and a guide means adapted to guide the movement of the lift arm; a first three-wheel means operatively connected to said lift arm at an end of said lift arm for positioning said lift arm in a vertical position for gripping a container and ejecting its contents; ° The first power means for moving the container in the reversed position, (
g) a second power means supported on the vertical legs of said support frame assembly; a second means for moving the lift arm such that the end of the lift arm, which is pivotally connected to the guide means and on which the grip means is attached, moves in a direction ttx horizontal to the surface on which the container stands; A container moving mechanism equipped with a power means. (14) The lift arm support means is in the form of a link member, one end of which is pivotally connected to the horizontal leg of the frame assembly means, and the other end of which is pivotally connected to the lift arm at a midpoint between its ends. 13. (15) The mechanism according to clause 14, wherein the lift arm has a roller mounted between its ends, and the guide means is in the form of a track member adapted to engage with the roller. (16) A mechanism attached to a garbage truck for lifting a container from an upright position on one side of the vehicle to a reversing position over the vehicle for discharging the contents, fa) being a vertically extending leg; and a leg extending in the y-horizontal direction from an upper end of the vertically extending leg. (b) a lift arm supported from the horizontal leg of the support frame assembly; tc) support means for supporting the lift arm from the horizontal leg of the frame assembly means, the upper end of which is supported by the horizontal leg of the frame assembly means; support means comprising a link member pivotally connected to the horizontal leg of the assembly and having a lower end pivotally connected to the lift arm intermediate the ends of the lift arm; container grit means adapted to move between a grip position and a container release position; fe) supported from the horizontal leg of the frame assembly and for engaging and guiding the movement of the lift arm; A guide means configured to
a guide means including a track member whose upper end is pivotally connected to the horizontal leg of the frame assembly and adapted to engage a roller mounted on the lift arm intermediate the ends thereof; (f) an upper end; a power lift cylinder pivotally connected to a horizontal leg of said frame assembly and having a lower end pivotally connected to said lift arm at an end opposite the end to which said gripping means is attached; (g) a lift cylinder which is movable between a position for gripping the container in an upright position and a position where the container is turned over to discharge the contents into the garbage truck; (g) one end; a power track 7 cylinder pivotally connected to the vertical leg of the support frame assembly and at the other end to the track member of the guide means, the end to which the gripping means is attached being connected to the container; A container moving mechanism comprising: a power truck 7 cylinder on an upright surface for moving the lift arm in a horizontal direction; 07) A mechanism for moving a container from an upright position to an ejection position and from an ejection position to an upright position, the mechanism fa)
fb) a lift arm supported from said horizontal leg of said support frame assembly means; (c) support means for supporting said lift arm from said horizontal leg of said frame assembly means; (d) support means mounted on one end of said lift arm and movable between a container gripping position and a container opening position; Ie) a guide means supported from a horizontal leg of said frame assembly and adapted to engage said lift arm and guide movement of said lift arm; and f) said support. a first hydraulic power means supported from a horizontal leg of the frame assembly and pivotally connected to the lift arm at an end opposite to the end to which the gripping means is mounted; the lift arm is moved between a position for gripping the container and a position in which the container is inverted for ejecting the contents; and (g) a second hydraulic power means adapted to move the container between a position for placing the container on the ground; A means of hydraulic power for
The lift arm is pivotally connected to the guide means so as to move the lift arm such that the end on which the grip means is mounted moves in a y-horizontal direction on the surface on which the container stands upright. a second hydraulic power means;
h) a hydraulic control hand for controlling the movement of said first and second hydraulic power means; said hydraulic control means controlling said first hydraulic power one during the last part of the downward movement of said lift arm; 18. A mechanism according to claim 17, including selective pulp means operable to divert the flow of fluid flowing through the means, thereby preventing the container from falling rapidly onto the ground. 09) A garbage collection vehicle for automatically discharging garbage containers placed on the side of the road, comprising: (a) a vehicle frame; and fb) a garbage container attached to the frame and having an open top for receiving garbage. a storage chamber; [c) a mechanism mounted on the frame for automatically moving a garbage container in an upright position on the side of a road to a retracting position for discharging the contents into the garbage storage chamber; a support frame assembly means mounted on the vehicle frame; a lift arm supported by the frame assembly means; and a support for supporting the lift arm from the frame assembly means.
container gripping means mounted on the lift arm and adapted to move the container between a container gripping position and a container release position; a container gripping means supported from the frame assembly and engaging the lift arm; a guide means adapted to guide movement of the lift arm; and a guide means received by the frame assembly and operatively connected to the lift arm and positioning and ejecting the lift arm for gripping a container in an upright position. A garbage collection truck equipped with a mechanism including a power means for moving a container between an overturned position and a container. (20) The vehicle according to item 19, wherein the container grip means is attached to one end of the lift arm, and the arrow ξ means is pivotally attached to the other end of the lift arm. (2I) The vehicle of claim 19, wherein one end of said guide means is pivotally connected to said frame assembly and said guide means engages said lift arm at a midpoint between its ends. (a) said lift arm support means is in the form of a link member and has one end pivotally connected to said frame assembly means and the other end pivotally connected to said lift arm at a midpoint between its ends; Vehicles in Section 21. (2) The frame assembly means includes a vertically extending leg and a horizontally extending leg from an upper end of the vertically extending leg, and the lift arm has an upper end extending horizontally from the horizontally extending leg of the frame assembly. The vehicle of paragraph 19, wherein the vehicle is supported by a linkage pivotally connected to the leg and whose lower end is pivotally connected to the lift arm midway between the two ends.04) Automatically removes garbage containers placed on the side of the road. a garbage collection vehicle for discharging, comprising: a fat vehicle frame; (c) a garbage storage chamber mounted on the frame and open at the top to receive garbage; and (C) an upright position along the side of the road. a mechanism for automatically moving a garbage container located in a vehicle into repetitive positions where the container is pulled to eject its contents into a garbage storage chamber, comprising: support frame assembly means mounted on the vehicle frame; a lift arm supported from the assembly means; support means for supporting the lift arm from the frame assembly means; and support means mounted on the lift arm and adapted to move between a container gripping position and a container opening position. Container grip means. a first guy means supported from the frame assembly and adapted to engage and guide movement of the lift arm; a first guy means supported from the frame assembly and operatively connected to the lift arm; It is a means of power,
a first power means adapted to assist in transferring the lift arm between a position for gripping a container in an upright position and a repeated position for pulling the container to eject its contents; a second power means supported on a support frame assembly and operatively connected to the guide means, the end of the lift arm opposite the end to which the gripping means is mounted; A garbage collection truck comprising a second power means for moving the lift arm so as to move in a horizontal direction on a plane on which a container is upright. (29) the first power means is pivotally connected at one end to the frame assembly means and at the other end to an end opposite to the end at which the gripping means is attached to the lift arm; c!0 The vehicle of paragraph 25, wherein one end of said guide means is pivotally connected to said frame assembly, and said guide means engages said lift arm at a midpoint between its ends. 27. The vehicle of claim 26, wherein said lift arm support means is in the form of a link member, one end of which is pivotally connected to said frame assembly means and the other end of which is pivotally connected to said lift arm at a point midway between the ends thereof. (28) The vehicle according to item 27, wherein the guide means is in the form of a track member that engages with a roller attached to the lift arm.