JPS6323362Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tailgate opening/closing device for a garbage collection vehicle that can open and close an input port opened in a garbage input box.

(Prior art) In general, garbage collection vehicles are
As shown in Japanese Patent No. 44481, a pair of tailgate lifting/lowering grips are provided at the bottom of the tailgate symmetrically and protrude rearward from the tailgate.

Further, the lashing device for lashing the tailgate in the closed position and the above-mentioned gripping portion have been provided separately without having any relationship with each other.

(Problem to be solved by the invention) For this reason, the lashing or unlashing of the tailgate and the operation of raising and lowering the tailgate by grasping the gripping part must be performed separately, resulting in poor operability and workability. There was a problem.

Furthermore, since the gripping part and the lashing device are provided separately, this increases the cost, and there is also a problem in that the gripping part tends to catch the worker's clothes.

The present invention was developed in view of these points, and aims to improve operability and workability by configuring the gripping part of the tailgate so that it can partially be used as a lashing device for the tailgate, and at the same time, to reduce costs. The present invention provides an ivy tailgate opening/closing device.

(Means for Solving the Problems) The present invention has a recess formed on the lower side of the tailgate that opens and closes the input port opened on the rear surface of the garbage input box, and the recess also serves as a grip. A rotary shaft is fixedly fixed to the rotary shaft through a rotary bearing member, and a rotary shaft having a hook and an operating lever integrally fixed to the side thereof is rotatably fitted into the rotary bearing member, and the hook and the rotary shaft are fixed to the side frame of the input slot. A plurality of engageable locking grooves are formed, and the hook is biased in a direction to engage with the locking grooves.

(Function) In the present invention, when opening the input port, grasp the operating lever, resist its biasing force, remove the hook from the locking groove, and then lift the operating lever to move the tailgate from the guide rail. , and the input port is opened. When the tailgate reaches the raised position, by releasing the grip on the operating lever, the hook engages with the upper locking groove due to the biasing force.

To close the input port, rotate the operating lever to release the hook from the locking groove, then grasp the rotary bearing member located in the recess of the tailgate and pull it down, and the tailgate will move to the guide rail. The input port is closed.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.A garbage storage box 2 mounted on the chassis 1 of a garbage collection vehicle has a garbage storage box 2 on the rear opening of which a garbage input box 3 can be slid rearward. It is pivoted 4.

An input port 5 is opened at the lower rear of the garbage input box 3, and the garbage inputted into the garbage input box 3 through the input port 5 is transferred to a conventionally known garbage pushing device provided in the garbage input box 3. Then, it is pushed into the garbage storage box 2.

A pair of recesses 7, 7 on the left and right are formed on the lower side of the tailgate 6 that can open and close the input port 5, and a rotary bearing member 8 is attached to the tailgate 6 so as to pass through the recesses 7, 7. It is attached to the bottom. A rotary shaft 9 is rotatably fitted into the rotary bearing member 8, and the rotary bearing member 8 and the rotary shaft 9 constitute a shaft member.

On the other hand, rollers 10 are provided at both ends of the rotating shaft 9.
10 is rotatably attached to the shaft, and the input port 5
Guide rails 12, 12 each having a cross-section of "2" are fixed on side frames 11, 11 erected on both sides of the roller, and the rollers 10, 10 are fitted into these guide rails 12, 12 so as to be freely rollable. There is.

By the way, the bases of key-shaped hooks 13, 13 are integrally fixed to the rotating shaft 9 slightly inside the roller 10, and a knob 14 is attached to the tip of the hook 13.
The proximal end of the operating lever 15, which is attached to the tip thereof, is fixed integrally.

A tension spring 18 is stretched between a bracket 16 protruding from the base side of the hook 13 and a bracket 17 protruding from the rear surface of the tailgate 6, and is inserted into locking grooves 19 and 20, which will be described later. Hook 13
is biased in the direction of engagement.

Next, to explain the locking grooves 19 and 20, the locking groove 19 is located above the input port 5,
and the side frame 1 located inside the guide rail 12
The locking groove 20 is bored in the same manner as the locking groove 19 except that the locking groove 20 is located below the input port 5.

Incidentally, an upper engaging rod 21 is fixed to both upper side edges of the tailgate 6, and this upper engaging rod 21 extends outward across the side wall of the garbage input box 3 above the guide rail 12. At the end of the upper engagement rod 21, a pivot 2 is attached to the upper part of the garbage input box 3.
The free ends of the two regulating rods 23 are connected.

The tailgate 6 is gripped by the rotary bearing member 8 in the recess 7 formed in the lower part of the tailgate 6, and is moved to the guide rail 12.
1, the tailgate 6 can open the input port 5 as shown by the chain line in FIG. 1 while being restricted by the regulating rod 23.

Note that a tension spring 24 is stretched between the regulation rod 23 and the garbage disposal box 3, and this tension spring 24
The tension force urges the regulating rod 23 to rotate upward, and assists the tailgate 6 in the opening direction.

Next, the operation of the embodiment of the present invention will be explained.
In FIGS. 2 and 3, the tailgate 6 is connected to the input port 5.
In this closed state, the hook 13 is engaged with the locking groove 20 by the tension of the tension spring 18, and the tailgate 6 is fixed in its closed position.

To open the tailgate 6, rotate the operating lever 15 counterclockwise in FIG. 3, remove the hook 13 from the locking groove 20, and then grasp the operating lever 15 and pull it up. , the roller 10 moves upward while rolling within the guide rail 12, the tailgate 6 is raised, and the input port 5 can be opened.

In this case, the upper part of the tailgate 6 is regulated by a regulating rod 23 that rotates upward with the help of the tensile force of the tension spring 24, and the tailgate 6 opens the input port 5 as shown by the chain line in FIG. do.

The hook 13, which has moved up inside the guide rail 12 together with the roller 10, touches the side frame 11 above the input slot 5.
Since the tailgate 6 is engaged with a locking groove 19 formed in the tailgate 6, the tailgate 6 can hold the input port 5 in the open position as shown in FIG.

In addition, when closing the tailgate 6, rotate the operating lever 15 counterclockwise again, disengage the hook 13 from the locking groove 19, and then close the locking groove 19 provided in the recess 7 of the tailgate 6. When the rotary bearing member 8 is grasped and pulled down, the tailgate 6 is lowered.

In this case, the tailgate 6 will not suddenly descend due to the tensile force of the tension spring 24.

(Effects of the invention) As described above, according to the invention, the tailgate lifting operation and the lashing release operation can be performed in one, which improves operability and workability. Since it is also used as a rotating bearing member, it is preferable in terms of manufacturing cost.

Furthermore, when the tailgate is raised and lowered, the gripping part is placed in the recessed part of the tailgate, so that the operator's clothes will not get caught and become stale, and safety can be ensured.

[Brief explanation of drawings]

The drawings illustrate the embodiments of the present invention.
The figure is a rear side view of the garbage collection vehicle, Figure 2 is a rear view with some parts omitted, Figure 3 is a side view with the tailgate closed, and Figure 4 is a side view with the tailgate open. , FIG. 5 is a cross-sectional view taken along line AA in FIG. 2. 5... Input port, 6... Tail gate, 7... Recess, 8... Rotating bearing member, 9... Rotating shaft, 13...
...Hook, 15...Operation lever.

Claims (1)

[Scope of utility model registration request] In a garbage collection vehicle that has an input port opened on the rear surface of the garbage input box and that can be opened and closed by a tailgate, a recess is formed on the lower side of the tailgate, and the recess also serves as a gripping part. A rotary shaft having a hook and an operating lever integrally fixed to the side thereof is rotatably fitted into the rotary bearing member, and a side frame of the inlet is fixed to the rotary shaft. A tailgate opening/closing device for a garbage collection vehicle, characterized in that a plurality of locking grooves that can be engaged with a hook are bored, and the hook is biased in a direction to engage with the locking groove. .