JPS6274802A - Safety device for garbage wagon - 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 (Industrial Application Field) According to the present invention, a garbage disposal box can be supported by a safety rod at an appropriate position. This relates to safety devices for garbage collection vehicles.

(Conventional Technique 11 Mi7) In general, a garbage collection vehicle is composed of a garbage storage box and a garbage input box that is tiltably connected to the rear opening of the garbage storage box, and the inside of the garbage storage box is cleaned. Or equipment? During maintenance inspection, after tilting the garbage input box with respect to the garbage storage box,
[A safety rod is interposed between the garbage input box and the garbage storage box to support them.

Such a safety rod has a fixed length due to the storage space during storage, and the garbage disposal box is supported only at a specific tilt angle.

Also, Publication No. 56-52170 and Publications No. 56-52
As disclosed in Japanese Patent Application No. 171, a device that supports the garbage disposal box in multiple stages has also been devised.

(Problems to be Solved by the Present Invention) In the prior art described above, the safety rod itself is provided with engagement teeth and engagement holes, so when supporting the garbage disposal box, the safety rod is The buckling strength was poor.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a safety device for a garbage collection vehicle that can support a garbage disposal box with sufficient strength.

(Technical means for solving the problem) The present invention provides a guide rail that is laid along the rear opening of the garbage storage box, and a plurality of guide rails arranged at appropriate intervals in the vertical direction. A sliding member that fixes the member to be secured and rotatably pivots an engaging member that can be engaged with or detached from the member to be engaged is fitted, and further, the sliding member and the garbage input box are connected to each other. A safety rod is pivotally connected therebetween, and the engaging member is biased via a spring in a direction beyond which the engaging member engages with the engaged member. .

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. 6 In FIG. 1, a part of the rear part of a garbage collection vehicle 1 is cut away, and the garbage collection vehicle 1 is as conventionally known. , a garbage storage box 2 mounted on a vehicle frame (not shown), and the garbage storage box 2
A garbage disposal box 5 is connected to the rear opening 3 of the box so as to be tiltable about a pivot shaft 4, and is equipped with a garbage processing device (not shown) inside.
It is made up of more.

A reinforcing member 2b is fixed to the rear end of the side wall 2a of the garbage storage box 2 along the opening 3, and a reinforcing member 5b is fixed to the front end of the side wall 5a of the garbage input box 5.

The reinforcing members 2b and 5b are connected via a sealing material 6, and the reinforcing member 5b of the garbage disposal box 5 extends forward so as to cover the reinforcing member 2b of the garbage storage box 2 from the side. It is set up.

By the way, on the reinforcing member 2b of the garbage storage box 2, a guide rail 7 having a C-shaped cross section is installed vertically.
Stopper pins 8 as engaged members are fixed to the guide rail 7 at appropriate intervals.

In addition, the 5 guide rail 7 has an opening 7 formed on its rear surface.
A sliding member 9 having a substantially T-shaped cross section is inserted through the hole a so as to be slidable in the downward direction.

This sliding member 9 includes a guide plate 9a housed in the guide rail 7, and a guide plate 9a fixed to the guide plate 9a and attached to the opening 7a.
a pair of mounting plates 9b extending rearward beyond the axis 10.1, with a space between the pair of mounting plates 9b.
1 is fixed.

The base end of a safety rod 12 is sandwiched between a mounting plate 9b and rotatably connected to the shaft lO, and the tip of the safety rod 12 is rotatable to an appropriate position on the reinforcing member 5b of the garbage disposal box 5. is pivotally connected to.

Further, a hook 13 as an engaging member is rotatably connected to the shaft 11, and the hook 13 has a guide portion 13a that abuts against the stopper pin 8 when the hook 13 is raised. The stopper pin 8 includes an engaging portion 13b that engages with the stopper pin 8, and an engaging portion 13c that comes into contact with the end of the opening 9a'' to be described later to prevent further rotation of the opening 9a''. ing.

The mounting plate 9b of the sliding member 9 and the hook 13
A spring 14 is stretched between the guide plate 9a and the opening 9a formed in the guide plate 9a.
'The hook 13 is biased clockwise with respect to the pin 11 into an operative position in which it engages the stop pin 8 until it abuts the upper end.

Furthermore, when the straight line connecting the connecting portion between the hook 13 and the mounting plate 9b on which the spring 14 is tensioned crosses the axis 11, the direction in which the hook 13 is pulled is switched.
For example, by manually operating the hook 13 in the normal operating position, or by abutting against the guides 15 disposed on both sides of the guide rail 7, the straight line connecting the connection parts of the springs 14 described above can be aligned with the shaft 11. Since the hook 13 is rotated until it reaches the stopper pin 8, the hook 13 moves from the operating position where the engaging portion 13b engages with the stopper pin 8 to the stopper pin 8...
..., and by manually operating the hook 13 in the retracted position, or by colliding with the guide 16 disposed below the reinforcing member 2b, the spring 14 is released. Since the hook 13 is rotated until the straight line connecting the connecting parts of the hook 13 crosses the axis 11, the hook 13 engages with the stopper pin 8 from the retracted position where its engaging part 13b separates from the stopper pin 8. It is adapted to move to the operating position.

Here, the guide 15 is arranged so that the guide portion 13a of the hook 13 collides with the slide member 9 when the sliding member 9 reaches the highest position, that is, when the garbage disposal box 5 reaches the maximum tilt angle. is arranged so that the lower surfaces of the hooks 13 abut against each other when the sliding member 9 reaches the lowest position, that is, when the garbage input box 5 reaches the stored state connected to the garbage storage box 2 (first (see figure).

Next, to explain the operation of the present invention, the garbage collection vehicle 10
In the running state, the safety rod 12 is connected to the reinforcing member 2 of the garbage storage box 2.
b and the reinforcing member 5b of the garbage disposal box 5 (as shown by the broken line in Figure 1).From this state, the garbage can be collected via a tilting cylinder (not shown) to perform maintenance and inspection work or discharge work. When the input box 5 is tilted relative to the garbage storage box 2, since the tip of the safety rod 12 is pivotally connected to the garbage input box 5, the sliding member 9 is moved through the shaft 10.
is raised.

When the sliding member 9 moves upward in this way, the guide portion 13a of the hook 13 abuts against the stopper pin 8, and the spring 14
The hook 13 is rotated counterclockwise against the urging force of.

When this guide portion 13a passes over the stopper pin 8 (in this case, the straight line connecting the connecting portions of the spring 14 is
), the lever 13 is rotated clockwise again by the biasing force of the spring 14 until the locking portion 1E 13c is locked with the upper end of the opening 9a, and the retaining portion 13
b will be located above the stopper pin 8.

At this time, assuming that the tilting of the garbage dumping box 5 is stopped and the pressure oil supply to the tilting cylinder is cut off due to an erroneous operation or an accident, the weight of the garbage feeding box 5 is
As a result, the sliding member 9 tends to descend.

As the sliding member 9 descends, the hook 13 also begins to descend, and the engaging portion 13b of the hook 13 engages with the stopper pin 8, thereby preventing the hook from falling further. .

In order to lower the garbage disposal box 5 supported in this way, the operator only has to pull the hook 13 against the biasing force of the spring 14 until the spring 14 exceeds 1 ktt. The hook 13 moves from the operating position to the retracted position, and even if the garbage disposal box 5 is lowered, the hook 13 is moved from the operating position to the retracted position.
The engaging portion 13b of No. 3 is allowed to descend without being engaged with the stopper pin 8.

Further, allowing the garbage input box 5 to descend can also be done by raising the garbage input box 5 to the maximum tilt angle.

That is, when the garbage input box 5 reaches the maximum tilt angle, the guide portion 13a of the flap 13 comes into contact with the guy 15, so that the spring 14 does not move. ! 4d] 11 to the retracted position, and then the garbage disposal box 5 is lowered, the engaging portion 13b is not engaged with the stopper pin 8.

When the garbage disposal box 5 returns to the lowest position, that is, the running state, the lower surface of the hook 13 collides with the guide 16, and the two
The lever 13 is forcibly moved from the retracted position to the operating position in preparation for the next tilting of the garbage input box 5.

If the guide 16 is not provided, the operator may press the hook 13 to move it to the operating position.

(Effects of the Invention) As described above, the present invention has sufficient strength because the engaging member engages with the engaged member appropriately and further descent is prevented by δ■1. can support the garbage disposal box.

[Brief explanation of drawings]

The drawings are illustrative of a yet-to-be-invented embodiment, and FIG. 1 is a side view with the rear part of the garbage collection vehicle partially omitted, FIG. 214 is an enlarged view showing the garbage storage box side of FIG. 1, and FIG. The figure is Figure 1 II.
It is a sectional view taken along the line I-III.

Claims (3)

[Claims] (1) A garbage collection vehicle consisting of a garbage storage box mounted on a seat frame and a garbage input box that is tiltably connected to the rear opening of the garbage storage box and equipped with a garbage processing device inside,
A guide rail is laid along the rear opening of the garbage storage box, and a plurality of engaged members are fixed to the guide rail at appropriate intervals in the vertical direction and engaged with the engaged members. Alternatively, a sliding member in which a removable engaging member is rotatably pivoted is fitted, and a safety rod is pivotally connected between the sliding member and the garbage disposal box, and the engaging member is pivotably connected to the sliding member. The member is biased via a spring in a direction beyond its pivot portion and into engagement with the engaged member.
Safety equipment for garbage collection vehicles. (2) A guide is disposed above the garbage storage box, and the engaging member moves from an operating position where it engages with the engaged member by colliding with the guide to a retracted position where it separates from the engaged member. A safety device for a garbage truck according to claim 1, which is forcibly transferable. (3) A guide is disposed below the garbage storage box, and the engaging member moves from a retracted position where it separates from the engaged member upon collision with the guide to an operating position where it engages with the engaged member. A safety device for a garbage truck according to claim 1, which is forcibly transferable.