JPS6211236Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, in vehicles such as garbage collection trucks and dump trucks, where the loading platform is pivotally mounted to the vehicle body so that it can tilt, it is necessary to ensure safety when inspecting and maintaining the telescopic cylinder for tilting the loading platform and its auxiliary equipment. Therefore, it is common practice to support the tilted loading platform on the vehicle body with a safety rod, but one end of this safety rod is pivoted to the vehicle body side so as not to interfere with the normal ups and downs of the loading platform. After the rod is manually raised and rotated, it is connected to the loading platform using pins, etc. For this reason, the worker must hold the safety rod in an upright position in the narrow space between the tilted loading platform and the vehicle body, align the safety rod with the pin hole in the loading platform, and insert the pin into it. The disadvantage is that it is difficult to attach the rod.

The present invention deals with this problem by having an L-shaped ear portion 7a protrude from the terminal boss portion of the safety rod 7 pivotally connected to the lower surface of the cargo platform, and attaching the cargo platform pivot to the end of the vehicle body on the cargo platform pivot side. The other end of the connecting rod 9, which has one end pivoted eccentrically from the center, is pivoted to the tip of the ear portion 7a, so that as the loading platform is raised and rotated relative to the vehicle body, the safety rod is moved closer to the vehicle body than the storage position along the lower surface of the loading platform. The safety rod and the connecting rod are associated with each other so that the safety rod and the connecting rod can be rotated to the connected position.

As shown in FIGS. 1 and 5 below, the bottom stringers 3a on both sides of the box-shaped loading platform 3 for storing garbage are attached to the brackets 2a on both sides of the rear end of the subframe 2 fixed to the rear chassis frame 1 of the automobile. It is pivoted by a shaft 4, and a tailgate 5 for pushing in garbage is attached to the rear end opening of the cargo platform 3 so as to be openable and closable, and the vehicle bodies 1 and 2 and the cargo platform 3 are
An embodiment of the present invention will be described with respect to a garbage collection vehicle equipped with a telescopic cylinder 6 for tilting the loading platform.

Reference numeral 7 denotes safety rods on both sides that are pivoted by shafts 8 between the bottom longitudinal members 3a on both sides and brackets 3b that protrude from the lower surface of the loading platform on the inner side thereof, and the safety rods 7 are located on the loading platform side in the storage position along the lower surface of the loading platform. An upwardly protruding ear portion 7a is integrally provided on one side of the pivot boss portion, and the tip of the ear portion 7a and the corresponding tip of the bracket 2b protruding and fixed to the rear end of the subframe 2 respectively. The fork-shaped portions at both ends of the connecting rod 9 are connected to each other by shafts 10 and 11, respectively. Bracket 2
b is located below the loading platform pivot shaft 4.

Therefore, by extending the telescopic cylinder 6 from the state shown by the solid line in FIG. 1 or from the state shown in FIG. The axis 10 draws a radius R with the axis 11 as the center.
In order to draw a trajectory R', the safety rod 7 is rotated about the shaft 8 to the position where it is connected to the vehicle body as shown by the chain line in FIG.

Reference numeral 12 denotes a fork-shaped receiving fitting installed on the subframe 2 so that the lower end of the safety rod 7 is loosely fitted in the connecting position to the vehicle body. A pin hole 12a that matches the pin hole 7b at the lower end is drilled, and a pin 13 that can be inserted into and removed from both pin holes is inserted into the holder via a chain 14 (a remote-controlled manual pin insertion/removal mechanism may be used). Installed. It is preferable that the safety rod 7 reaches the position where it is connected to the vehicle body at the end of the extension stroke of the telescopic cylinder 6.

According to the above configuration, there is no problem even if the safety rod 7 is interlocked with the connecting rod 9 during normal lifting and lowering of the loading platform, such as when dumping stored garbage in the loading platform 3, and moreover, the telescopic cylinder and its attached equipment, etc. When the loading platform 3 is to be supported by the safety rods 7 on both sides during inspection and maintenance, the loading platform 3 is tilted by the telescopic cylinder 6 until the safety rod reaches the connection position to the vehicle body, and then the lower end of the safety rod is secured with the pin 13. What is necessary is just to connect it to the receiving metal fitting 12. If the safety rod 7 is rotated to the position where it is connected to the vehicle body when the telescopic cylinder 6 is fully extended, it will be easier to align the pin holes 7b and 12a.

According to the present invention, it is not only possible to quickly and easily install a safety rod in a narrow space between a tilted loading platform and the vehicle body, but also to quickly evacuate even if the loading platform starts to fall. , it is also possible to remotely control the insertion and removal of the connection pin between the safety rod and the vehicle body.

[Brief explanation of the drawing]

Figure 1 is a side view, Figures 2 and 3 are respectively
FIG. 4 is a perspective view of the safety rod, and FIG. 5 is a side view schematically showing the garbage collection vehicle. 1, 2... Vehicle body, 3... Loading platform, 4... Loading platform pivot shaft, 6... Telescopic cylinder for tilting the loading platform, 7... Safety rod, 8... Loading platform side pivot shaft of the safety rod, 9... Connecting rod, 12...Bracket, 13...Pin.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a vehicle in which a loading platform is tiltably pivoted to the vehicle body, an L-shaped ear portion 7a protrudes from the terminal boss portion of a safety rod 7 pivotally connected to the underside of the loading platform, The other end of a connecting rod 9, which has one end pivoted to the end of the vehicle body on the cargo platform pivot side eccentrically from the center of the cargo platform pivot, is pivotally connected to the tip of the ear portion 7a, and as the cargo platform is rotated upright relative to the vehicle body. , so that the safety rod rotates from the storage position along the bottom of the loading platform to the connection position towards the vehicle body.
A cargo platform fall prevention device characterized by associating a safety rod with a connecting rod. (2) The cargo platform fall prevention device according to claim 1, which is configured such that the safety rod rotates to a position connected to the vehicle body when the cargo platform tilting telescopic cylinder is fully extended.