JPS5844081Y2 - Garbage loading device for garbage collection vehicle - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a garbage loading device for a garbage collection vehicle.

As is known, the garbage loading device of the garbage collection vehicle has a tailgate pivotally connected to the vehicle body adjacent to the vehicle body opening,
A deflector, scraping panel, etc. are installed inside this tailgate.

In order to scrape the garbage dumped into the tailgate into the vehicle body, the scraping panel performs a reversal operation in which it rotates upward in a direction away from the vehicle body opening prior to the scraping operation, and then scrapes the garbage by the scraping operation. increase.

The present invention provides a garbage loading device that can carry out such a series of operations with a simple mechanism and with a large plowing distance.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2 showing its principle sectional side view, 1 is the body of a garbage collection vehicle, and a tailgate 2 is attached adjacent to the rear opening of the vehicle body 1. As shown in FIG.

The tailgate 2 is composed of a pair of side plates 2a facing each other laterally, a sump 2b forming a bottom plate connecting the side plates, and beams 2C1 and 2C2 integrally connecting the side plates. .

The tailgate 2 is pivotally connected by pivot pins 5 to brackets 4 attached to both ends of a profile 3 laterally fixed to the rear end of the vehicle body 1.

The pivot pins 5 pivotally support the ear pieces 1a at the upper ends of the side plate portions 1 provided at both lateral ends of the deflector 6.

The deflector 6 is a rectangular panel extending across the entire width of the tailgate 2 in the lateral direction, and has a cover plate 6a projecting from its upper edge.

A pair of guide rails 8 are attached to the inner surface of each side plate 1 at intervals in the width direction, and a vertical guide groove is formed between the guide rails.

Projections 9a protruding from both sides of the panel-shaped slider 9 are fitted into the guide groove, so that the slider 9 can freely slide up and down along the guide rail 8.

A plate-shaped stopper 10 for regulating the upward displacement of the slider 9 is fixed at the upper end of the guide groove, and in the state shown in FIGS. A gap 12 is left.

The upper side of the scraping panel 14 is pivotally attached to the lower side of the slider 9 by a horizontal pivot pin 13 .

A mounting lug 15 is fixed to the rear side of this scraping panel 14, and a mounting lug 15 is fixed to the upper part of the rear side of the slider 4.
6 is fixed, cylinder 1 of the scraping cylinder device 18
The upper end of the piston rod 8a is pivotally connected to the ear piece 16 by a pivot pin 19, and the lower end of the piston rod 18b is pivotally connected to the ear piece 15 by a pivot pin 20.

The upper end of the vertically movable cylinder 22a is pivotally connected to the bracket 4 by a pivot pin 23, and the lower end of the piston rod 22b is pivotally connected to the swing arm 2 by a pivot pin 24.
It is pivoted in the middle of 5.

One end of the swing arm 25 is pivotally connected to the bracket 21 of the beam 2C1 of the tailgate 2 by a pivot pin 26, and the other end of the arm 25 is connected to the lateral pivot pin 13 between the slider 9 and the scraping panel 14. It is pivoted to.

One of the above-mentioned scraping cylinder devices 18 is provided at the center in the width direction of the scraping panel 14, and the vertically movable cylinder device 22, swing arm 25, etc. are provided for each side plate 2a.

Note that the vehicle body 1 is located at the front end of the sump 2b of the tailgate 2.
A retaining portion 30 is provided which is supported in contact with the rear end edge of the floor portion 1a.

Next, the operation of the garbage loading device described above will be explained.

The state shown in FIGS. 1 and 2 is the state before the start of the loading operation, and in this state the scraping cylinder device 18 is contracted.

As a result, the piston rod 18b rotates the scraping panel 14 counterclockwise via the mounting lug 15 as shown by arrow A in FIG.

At this time, the vertically movable cylinder device 22 remains inoperative and the arm 25 does not move, so the pivot pin 13, which is the center of rotation of the scraping panel 14, remains fixed.

This rotation of the scraping panel 14 is a reversal prior to its scraping operation.

The final position obtained by this reversal is the position shown in FIG. 3, at which point the downward movement begins.

For lowering, the vertical cylinder device 22 is extended.

As a result, the swinging arm 25 is pushed downward via the pivot pin 24 and swings around the pivot pin 26, and at the same time the slider 9 slides downward relative to the deflector 6, and the scraping panel 14 The state shown in FIG. 4 is obtained by displacement in the direction indicated by arrow B.

Since the pivot pin 13 is located at the tip of the swing arm 25 and moves in an arc around the pivot pin 26, the inverted scraping panel 14 does not simply descend, but instead moves toward the inlet end of the tailgate sump 2b. (rear end) and descends diagonally backward, reaching the position shown in Figure 4.

The raking cylinder device 18 is then extended and the raking panel 14 pivots about the pivot pin 13 in the direction indicated by arrow C in FIG.

At this time, since the tailgate sump 2b is formed along the trajectory of the tip 14a of the scraping panel 14, the scraping panel 14 scrapes the garbage dumped onto the sump 2b toward the vehicle body 1 as shown in FIG. reach the position.

At the position shown in FIG. 5, the vertical movement cylinder device 22 begins to contract, thereby causing the swinging arm 25 to swing upward, and the pivot pin 13 at its tip displacing upward while facing the vehicle body, thus causing the scraping panel 14 reaches the state shown in FIG. 2 while further stirring up the dust into the vehicle body.

Therefore, the dust on the sump 2b is scraped into the vehicle body.

In order to open the tailgate 2 in order to discharge the dirt that has been scraped up and accumulated inside the vehicle body as described above to the outside of the vehicle body, the vertically movable cylinder device 22 is contracted in the state shown in FIG.

As a result, the slider 9 rises relative to the deflector 6, contacts the stopper 10, and tries to push it up.

Therefore, a counterclockwise moment in FIG. 2 acts on the tailgate 2 via the stopper 10, and the tailgate is flipped up as shown by arrow E in FIG.

This counterclockwise moment is caused by the fact that the pivot pin 23 is located above the pivot pin 5.

FIG. 7 shows a modified embodiment of the present invention.

In this embodiment, the lower end of the vertically movable cylinder device 22 is not pivotally mounted in the middle of the swinging arm 25, but is fixed to the rear surface of the slider 9 using a mounting lug 32. The stopper 10 is removed and a tailgate dump serial adapter 34 is added.

One end of this cylinder device 34 is attached to the vehicle body 1 with a pivot pin 35.
The other end is pivoted to the tailgate side plate 2a with a pivot pin 36.

This cylinder device 34 is provided on the outside of the Tennille gate side plate 2a.

In other respects, this variant embodiment is similar to the previous embodiment.

The difference between this modified embodiment and the previous embodiment in terms of operation is that the expansion and contraction of the vertically movable cylinder device 22 is directly transmitted to the slider 9 without going through the swing arm 2.5. The tailgate dump cylinder device 34 is used to move up and down and open the tailgate 2, and the up and down cylinder device 22 does not perform this action.

To open the tailgate, dump cylinder device 3
4 is extended.

In order to flip up the tailgate 2 by extension, the pivot pin 35 is installed below the pivot pin 5.

In yet another modified embodiment shown in FIG. 8, a vertically moving cylinder device 22 is provided on the outside of the tailgate side plate 2a,
Its upper end is pivotally connected to the vehicle body 1 by a pivot pin 39, and its lower end is pivotally connected to the middle of the swing arm 25 by a pivot pin 40.

This pivot pin 40 has a slot 4 formed in an arc shape centered on the pivot pin 26 and penetrated through the tailgate side plate 2a.
It passes through 1.

On the other hand, near the lower end of this slot 41, a pivot pin 42 is provided.
A dump stopper 43 is pivotally attached to the tailgate side plate 2a, and a drive device 44 is connected to the dump stopper 43 via a link 45 in order to rotate the dump stopper 43.

The dump stopper 43 is rotated by a drive device 44 between a position facing the lower end of the slot 41 and a position facing away from it.

When the scraping panel 14 is lowered, the dump stopper 43 is in a position away from the slot 41.

As in the first embodiment, the vertically moving cylinder device 22 not only moves the pull-in panel 14 up and down, but also flips up the tailgate, and when the tailgate flips up, the vertically moving cylinder device 22 is extended.

When extended, the dump stopper 43 is rotated to a position facing the slot 41 and comes into contact with the pivot pin 40 that is descending.

Therefore, the extension force of the vertically movable cylinder device 22 is transmitted to the tailgate via the dump stopper 43, and since the pivot pin 39 at the upper end of the vertically movable cylinder device is located below the pivot pin 5, the tailgate 2 is Released in response to a clockwise moment.

υIn the present invention, the embodiment of which has been explained above, the series of operations of reversing, lowering, raking, and raising the raking panel can be reliably performed with a relatively simple mechanism. After the reversal, the raking panel is lowered in an arc so as to approach the rear edge of the tailgate while maintaining a substantially horizontal state using a slider that is supported so as to be able to swing up and down. After compressing and raking, the garbage is raised in an arc while maintaining an approximately upright position, making it possible to effectively load garbage to the front of the vehicle, and providing a sump with an arc shape that is long enough in the front and back and deep enough. can do.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a perspective view of one embodiment of the present invention, FIG. 2 is a partially longitudinal side view somewhat schematically showing the device shown in FIG. 1, and FIGS. The figures are views sequentially showing different operating states of the device shown in Fig. 2; Fig. 1 is a partially longitudinal side view showing a modified embodiment of the present invention;
FIG. 8 is a partially longitudinal side view showing another modified embodiment of the present invention. 1...Vehicle body, 2...Tailgate, 2
b... Sump, 5... Pivot pin, 6.
...Deflector, 8...Guide rail,
9...Slider, 9a...Protrusion, 10
... Stopper, 13 ... Pivot pin, 1
4... Scratch panel, 15, 16...
・Mounting ear piece, 18... Scraping cylinder device,
19, 20... Pivot pin, 22... Vertical cylinder device, 23, 24... Pivot pin,
25... Swinging arm, 26... Pivoting pin, 34... Tailgate dump cylinder device, 35, 36, 39, 40... Pivoting pin, 41
...Slot, 43...Dump stopper.

Claims (1)

[Scope of Claim for Utility Model Registration] ■ A tailgate whose upper end is pivotally attached to the vehicle body adjacent to the vehicle body opening, and a structure that swings in the direction of approaching and away from the vehicle body opening near the vehicle body opening on the inside of the tailgate. A panel-shaped deflector is movably suspended from the vehicle body opening by a lateral pivot, and a panel-shaped deflector is supported by the deflector via a guide rail so as to be slidable up and down along the deflector on the side opposite to the vehicle body opening. A panel-shaped slider, a scraping panel whose upper edge is rotatably supported by a lateral pivot on the lower edge of the slider, a mounting piece fixed to the surface of the slider on the side opposite to the vehicle body opening, and the scraping panel. A telescoping cylinder device having both ends pivotally connected to a mounting piece fixed to the side opposite to the vehicle body opening, and one end pivotally connected to the tailgate on the side farther from the vehicle body opening,
A swing arm whose other end is pivotally connected to the lateral axis between the slider and the scraping panel, and whose lower end is linked directly or indirectly to the slider so as to allow the slider to slide vertically with respect to the deflector, and whose upper end is connected to the vehicle body. A garbage loading device for a garbage collection vehicle, comprising a vertically movable cylinder device pivotally connected to the garbage truck. 2. The garbage loading device according to claim 1, wherein the lower end of the vertically movable cylinder device is pivotally mounted in the middle of the swing arm. 3. Utility model registration claim 1, in which the lower end of the vertically movable cylinder device is pivotally connected to an ear protruding from the slider.
Garbage loading device as described in section. 4. An engagement pin is provided at the pivot point between the swing arm and the lower end of the vertically moving cylinder device, and this engagement pin forms an arc on the side wall of the tailgate around the pivot point of the swing arm to the tailgate. The upper end of the vertically movable cylinder device is pivotally connected to the vehicle body opening below a pivot shaft for pivotally connecting the tailgate to the vehicle body opening, and the lower end of the slot is connected to the flat end of the slot. A dump stopper is provided in the area so as to be freely retractable, and the extension force of the vertically movable cylinder device is transmitted to the tailgate via the dump stopper to open the tailgate. garbage loading device. 5. The upper end of the vertically movable cylinder device is pivotally connected to the vehicle body opening above the pivot that pivots the tailgate to the vehicle body opening, and a stopper is provided at the upper end of the guide rail of the deflector to prevent the slider from rising above a certain limit. is established,
The garbage loading device according to claim 2, wherein the tailgate can be opened by transmitting the contraction force of the vertically movable cylinder device to the tailgate via the stopper.