JP2543536B2 - Dust collection device for garbage truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a dust collecting vehicle having an improved support structure for a force in the width direction acting on a vertically moving panel which is vertically moved by being guided by a guide groove in a tailgate. The present invention relates to a dust loading device.

[Conventional technology]

Generally, there is known a dust collection vehicle including a vertical movement panel that is vertically moved by being guided by a guide groove in a tailgate connected to a rear portion of the dust storage box. This type of type is usually called a centerless type, and a scraping panel is supported on the lower end edge of the vertical moving panel. Both panels make up a dust loading device.

By the way, conventionally, a vertically moving panel is guided vertically along a guide groove, and a main roller rolling in the guide groove, a roller support shaft for supporting the main roller with respect to the vertically moving panel, and a roller support shaft A guide mechanism has been proposed, which includes an auxiliary roller that is supported at the end and rolls on the bottom of the guide groove (JP-A-59-114202). The main roller bears and supports the force acting on the panel surface of the vertical moving panel, and the auxiliary roller bears and supports the force in the width direction acting on the vertical moving panel. According to this support mechanism, there is an advantage that it is possible to prevent a trouble in which the vertically movable panel sways from side to side even if an unbalanced load is applied.

[Problems to be solved by the invention]

However, the above-mentioned support mechanism has a complicated structure, and when the auxiliary roller is assembled, the dimension in the width direction cannot be accurately obtained, and if there is a gap between the groove bottom of the guide groove and the auxiliary roller, Then, there is a problem that it is impossible to sufficiently prevent the vertical movement panel from swinging to the left and right. Also, if the vertical trajectory of the vertical movement panel is not straight, that is, if there is a curved portion in the guide groove,
There is a problem that the auxiliary roller itself slips and the auxiliary roller is easily worn.

Therefore, an object of the present invention is to solve the problems of the above-described conventional technique, have a simple structure, and can reliably prevent the vertical movement panel from swinging to the left and right, and have excellent durability. It is to provide a dust loading device for a collection vehicle.

[Means for solving problems]

In order to achieve the above object, the present invention provides a dust loading device for a dust collecting vehicle, comprising a vertically movable panel guided in a guide groove in a tailgate connected to a rear portion of a dust storage box. , A roller support shaft supporting a roller rolling in the guide groove is fixed to the vertical movement panel,
An elastic friction plate is provided at the end of the roller support shaft so as to be in sliding contact with the groove bottom of the guide groove.

[Work]

According to the present invention, when the vertical moving panel moves up and down, the force acting on the panel surface of the vertical moving panel is shared and supported by the roller, and the force acting in the width direction of the vertical moving panel is shared and supported by the friction plate. It This friction plate is easy to install and easy to replace.

〔Example〕

Hereinafter, an embodiment of the dust loading apparatus according to the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a garbage storage box,
A tailgate 3 is pivotally attached to a rear portion of the dust container 1 via a pivot shaft 2. A vertically movable panel 5 which is vertically movable is provided inside the tailgate 3, and a scraping panel 6 is pivotally supported at a lower end edge of the vertically movable panel 5. The vertical movement panel 5 is vertically moved by the vertical movement cylinder 7,
The scraping panel 6 is swung by a scraping cylinder 8, and both panels constitute a dust loading device. Reference numeral 9 is a dump cylinder for dumping the tailgate 3 rearward.

Two rollers 10 are vertically supported on one side surface of the vertical movement panel 5 via a roller support shaft 11 as described later, and two rollers (not shown) are also paired with the rollers 10 on the other side surface. No.) is supported in a similar configuration. The roller 10 is rollable in a guide groove 13 that linearly extends from the upper front part of the tailgate 3 to the lower rear part thereof and then curves downwardly. The guide groove 13 is shown in FIG. As shown in the drawing, the side plate 3a of the tailgate 3 is cut out and a guide member 15 having a U-shaped cross section is fixed to the outside of the side plate 3a.

 FIG. 2 is a sectional view showing a main part of the present invention.

The up-and-down moving panel 5 is reinforced by a plurality of reinforcing ribs 5a, and a boss portion 5b is projectingly provided on the reinforcing ribs 5a. The roller support shaft 11 penetrates the boss portion 5b and the ear portion 6a of the scraping panel 6 and is attached so as to be movable in the axial direction but not rotatable with respect to the vertically movable panel 5. The tip of an adjusting bolt 16 is in contact with the inner end of the roller support shaft 11, and the adjusting bolt 16 is screwed into a bracket 17 fixed to the reinforcing rib 5a. A roller 10 which is rollable on the side wall 13a of the guide groove 13 is fitted on the shaft at the outer end of the roller support shaft 11, and this roller 10 exerts a force on the panel surface of the vertically movable panel 5. Supports sharing. Further, a receiving hole 18 is formed at the end of the roller support shaft 11, and the receiving hole 18 is formed.
An engaging protrusion 19a of a friction plate 19 is fitted into the friction plate 18, and the friction plate 19 bears and supports a force in the width direction acting on the vertically movable panel 5. The friction plate 19 is preferably made of at least a material having elasticity which is softer than that of the guide member 15.

In order to assemble the friction plate 19, the engaging projection 19a is fitted into the receiving hole 18 of the roller support shaft 11 and is tightened into the adjusting bolt 16 until the friction plate 19 comes into contact with the groove bottom 13b of the guide groove 13. This work is easy, and no gap is created between the friction plate 19 and the groove bottom 13b of the guide groove 13 when assembled. Also friction plate 19
Even if it wears, the adjustment bolt 16 may be tightened further, so that the adjustment can be easily performed each time, and the life of the friction plate 19 can be extended.

Therefore, according to the present embodiment, when the vertical movement panel 5 moves up and down or when the scraping panel 6 swings, that is, when the dust is pushed into the dust storage box by the dust loading device, the vertical movement panel 5 is moved. Since the force acting on the panel surface of the above is shared and supported by the roller 10 and the force acting in the width direction of the vertical moving panel 5 is certainly supported and supported by the friction plate 19, a smooth loading operation of the dust loading apparatus is achieved. Can be secured.
Further, since the friction plate 19 is simply attached to the end of the roller support shaft 11, the structure is simple, maintenance is easy, there are few breakdowns, and it is possible to provide a stable garbage collection vehicle in terms of quality. . Further, since the adjusting bolt 16 for moving the roller support shaft 11 in the axial direction is provided, the dimensional accuracy in the width direction of the guide groove and the like can be set relatively rough, which is advantageous in terms of cost and the friction plate. Even if the abrasion of 19 is carried out, it can be adjusted, and the effect of facilitating replacement of the friction plate 19 is obtained. Furthermore, since the friction plate 19 is formed of a material having elasticity that is softer than that of the guide member 15, wear of the groove bottom 13b of the guide groove 13 is reduced, and if the groove bottom 13b of the guide groove 13 is formed.
Even if the finishing accuracy is poor, it can be absorbed to ensure smooth operation. Further, according to the present embodiment, it is possible to obtain the effect that the present invention can be applied to a guide groove which is not linear.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, the roller support shaft that supports the roller rolling in the guide groove is fixed to the vertical movement panel, and the groove of the guide groove is formed at the end of the roller support shaft. Since the elastic friction plate is provided so as to be in sliding contact with the bottom, it is possible to reliably prevent the vertical movement panel from swinging to the left and right. Moreover, the structure is simple, maintenance is easy,
Effects such as excellent durability can be obtained.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a dust dumping apparatus for a dust truck according to the present invention, and FIG. 2 is a sectional view showing an essential part of the present invention. 1 ... Dust storage box, 3 ... Tailgate, 5 ... Vertical movement panel, 6 ... Scraping panel, 10 ... Roller, 11 ...
Roller support shaft, 13 …… Guide groove, 15 …… Guide member, 16
…… Adjustment bolt, 19 …… Friction plate.

Claims (2)

(57) [Claims] 1. A dust loading apparatus for a dust collecting vehicle, comprising a vertical movement panel which is vertically moved by being guided by a guide groove in a tailgate connected to a rear portion of the dust storage box. A roller support shaft that supports a moving roller is fixed to the vertical movement panel, and at the end of the roller support shaft,
A dust dumping device for a dust truck, comprising an elastic friction plate slidably contacting the groove bottom of the guide groove. 2. The dust collecting vehicle according to claim 1, further comprising an adjusting bolt for moving the roller support shaft in the axial direction toward the groove bottom of the guide groove. Loading device.