JPS6037367Y2 - Garbage storage box support device for garbage collection vehicle - Google Patents

Description

[Detailed description of the invention] This invention tilts the garbage storage box of the garbage collection vehicle upward to discharge the collected garbage, so that the garbage storage box will not fall accidentally when inspecting or cleaning the inside of the garbage storage box. The present invention relates to a supporting device.

FIG. 1 shows a conventional garbage collection vehicle. Reference numeral 1 denotes a garbage storage box (hereinafter referred to as storage box) mounted on a vehicle body chassis 2 with an open rear end, and the rear end of a bottom frame 3 is connected to a shaft 4. It is pivoted to the vehicle body chassis 2 and tilts upward by the operation of a hydraulic cylinder 5 installed between the frame 3 and the vehicle body chassis 2.

Reference numeral 6 designates a garbage input box, the upper part of which is pivotally supported at the upper part of the rear opening of the storage box 1, which forms an input port at the rear, and is equipped with a push plate and a rotary plate inside (the input port, push plate , rotating plate not shown).

As shown in FIG. 2, the conventional storage box support device includes a chassis side safety rod 7 whose one end is pivotally connected to the vehicle body chassis 2, and a central side safety rod whose one end is pivotally connected to the storage box bottom frame 3. 8
The other ends of these safety rods 7 and 8 are pivotally connected to each other to form a foldable structure (the support device is provided on one side of the storage box).

This configuration will be explained in detail with reference to FIG. 3, which shows a perspective view of the storage box in a folded state, and FIG. 4, which shows a perspective view of the storage box in a tilting and supported state.

As shown in FIG. 3, the chassis side safety rod 7 is formed into a U-shaped frame having a pair of side pieces 9, 10, and each side piece 9, 10 at the pivot point with the center side safety rod 8 has a longitudinal side. A long hole 11 in the direction is bored.

Further, a lock pin pivot member 12 and a lock pin clip 13 are attached to the upper side wall of the side piece 9, and an end portion of a lock pin 14 is attached to the lock pin pivot member 12 with a shaft passing through the pin 14 in the diametrical direction. 15, and in the folded state, the free end of the lock pin 14 is clipped to the lock pin clip 13.

A lock pin fitting member 16 is attached to the outer wall of the side piece 10 so as to face the lock pin pivoting member 12, and a lock pin fitting hole 17 is formed in the member 16.

On the other hand, the station-side safety rod 8 is formed into a rectangular frame, and a shaft 18 perpendicular to its longitudinal direction is fixed to the pivot point with the chassis-side safety rod 7 (although not shown, the bottom of the safety rod 8 and the shaft 18 (and are fixed together with bolts and nuts), and both ends of the shaft 18 are fitted into the elongated hole 11.

In the support device constructed as described above, when the storage box 1 is tilted by operating the hydraulic cylinder 5 from the folded state shown in FIG. Then, the station-side safety rods 8 rotate clockwise about the shafts 18 to reach an extended state as shown in FIG. 4.

Then, the lock pin 14 clipped to the side piece 9 of the chassis side safety rod 7 is released from the clip 13, rotated outward about the through shaft 15 as a fulcrum, and the lock pin fitting member provided on the side piece 10 is rotated. To prevent buckling of both safety rods inserted into the insertion openings 17 of 16 and safely support the tilted state of the storage box.

When the storage box is returned to its original position, the lock pin 14 is reversed to unlock and clip the box, allowing both safety bars to buckle.

As described above, in the conventional storage box support device, the lock pin is removed from the clip, rotated, and inserted into the insertion hole.

In addition, it required an extremely troublesome operation of removing the clip from the insertion hole, rotating it, and clipping it, resulting in poor work efficiency and a complicated structure.

The present invention was devised in view of the above points, and its purpose is to provide a support device that has a simple structure and can easily maintain the tilted state of a storage box safely with one-touch operation. .

The present invention will be explained below with reference to an embodiment shown in FIGS. 5 to 7.

FIG. 5 shows the folded state (solid line) of the storage box support device and the storage box tilting support state (double-dashed line), respectively, and the chassis side safety rod 19 and the station side safety rod 20 are configured in a foldable manner. The points are the same as those of the conventional support device, but as shown in FIGS. 6 and 7 showing the cross section along the line A-A and the cross section along the line B-B in FIG. Each of the safety rods 20 is made into a plate-like body, and the chassis-side safety rod 19 is composed of a pair of support plates 21, and the support plates 21 have a collar 23 attached to a shaft 22 that is attached to the vehicle body chassis 2 in a cantilevered manner. The safety rods 20 and 20 are pivotally connected with a distance slightly wider than the thickness of the safety rod 20.

As shown in FIG. 5, the above-mentioned spacing is maintained by a plurality of spacing bolts 24 (not shown in the drawing) mounted at predetermined intervals in the longitudinal direction where the pair of support plates 21 are connected to each other. (three).

Further, the station-side safety rod 20 exists between a pair of support plates 21 forming the chassis-side safety rod 19, and as shown in FIG.
An elongated hole 27 into which a pivot shaft 26 is fitted is formed in the longitudinal direction, and a hook-shaped groove 28 is formed in the free end surface.

Therefore, the distance 1 between the center of the pivot shaft 26 of the chassis side safety rod 19 and the center of the spacing bolt 24 near the pivot shaft is
is made equal to the distance 1 between the center point of the hook-shaped groove 28 of the local safety rod 20 and the rear end of the elongated hole 27 into which the pivot shaft 26 is inserted.

In the support device configured as described above, when the storage box 1 is tilted by operating the hydraulic cylinder 5 from the folded state (solid line) in FIG. The station-side safety rods 20 each rotate clockwise about the pivot shaft 28 as a fulcrum, and enter the storage box tilting support state (double-dashed line).

After both safety bars are extended, return the storage box 1 slightly (elongated hole 2
7), the hook-shaped groove 28 at the tip of the local safety rod 20 fits into the spacing bolt 24 (the bolt near the pivot shaft 26) of the chassis safety bar 19, and the shaft 22, spacing bolt 24, and pivot The centers of the shaft 26 and the pivot shaft 25 are in a straight line (forming a dead center), preventing buckling of both safety bars and safely supporting the tilting state of the storage box.

To return the storage box 1 to its original position, lift the storage box upwards and release the hook-shaped groove 28 of the station safety rod 20 from the spacing bolt 24 of the chassis safety rod 19. Allows both safety bars to buckle.

Since the storage box support device of the present invention has the above-described configuration and function, the storage box can be supported in a tilted state with a one-touch operation, so the operation is extremely simple.
It also improves work efficiency and has excellent practical value.

[Brief explanation of the drawings] Fig. 1 is a schematic side view of a garbage collection vehicle, Fig. 2 shows the main parts of a conventional garbage storage box support device, and Fig. 3 shows the main parts when the support device is in a folded state. Fig. 4 shows an enlarged perspective view of the main part in the extended state. FIG. 5 shows a main part of an embodiment of the garbage storage box support device according to the present invention, FIG. 6 is an enlarged cross-sectional view taken along line A-A in FIG. 5, and FIG. It is an enlarged view of a line cross section. 19... Chassis side safety rod, 20... Station side safety rod, 24... Spacing retaining bolt, 27... Elongated hole, 8... ...Hook-shaped groove.

Claims (1)

[Scope of utility model registration request] A garbage collection vehicle consisting of a chassis side safety rod having one end pivotally connected to the vehicle body chassis, and a local side safety rod pivotally connected to the other end of the chassis side safety rod and having one end pivotally connected to the bottom frame of the garbage storage box. In the garbage storage box support device, the chassis side safety rod is integrally formed with a pair of support plates that are set opposite each other by a plurality of spacing bolts, and the local side safety rod that is pivotally connected between the support plates is attached to the bottom of the garbage storage box. Elongated holes are formed in the pivot points with the frame and the chassis side safety rod, and a hook-shaped groove is provided on the free end surface, and the center point of the hook-shaped groove connects to the chassis side safety rod. The distance between the rear ends of the long holes drilled in the pivot parts of the chassis and station safety rods was made equal to the distance from the center of the pivot shafts of the chassis side safety rod and station side safety rod to the center of the spacing bolt near the pivot shafts. A garbage storage box support device characterized by: