JPS5934542B2 - Tank lashing device on tank lorry - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device for securing a tank to the vehicle body of a tank truck.

In conventional tank rows, the tank is directly or indirectly connected to the chassis frame by a set plate or U.
Many of them are configured to be firmly fixed using bolts or the like.

Therefore, vibrations of the vehicle body during driving are transmitted to the tank, which has various adverse effects on the cargo inside the tank. In addition, since the highly rigid tank is connected to the chassis frame, which is subject to twisting and other deformations, an impactful torsional deformation force from the chassis frame side that occurs during driving is applied to various parts of the connection, and this force is repeatedly applied. This may eventually lead to loosening or breakage of the joints, which may lead to a serious accident. The present invention was invented in view of the above-mentioned points, and when securing a highly rigid tank to a chassis frame, it absorbs vibrations of the vehicle body as much as possible, and also easily copes with torsional deformation of the chassis frame. The purpose of the present invention is to provide an appropriate tank securing device for tank rows that exhibits stable functions over a long period of time.

Hereinafter, embodiments of the present invention will be described based on the drawings. Reference numeral 1 indicates a chassis frame of a vehicle, 2 a subframe fixed on the chassis frame, and a cushioning material 3 between the two.
is interposed.

Reference numeral 4 designates a tank body which is mounted on the tank via the subframe 2, and 5, 6 and T designate outriggers attached to the lower half of the tank body 4 at its center and front and rear ends.

The central outrigger 5 is provided with a mounting seat 8 that corresponds to the top surface of the subframe 2, and the mounting seat 8 and the mounting seat 9 fixed to the top surface of the subframe are overlapped, and both are fastened with bolts and nuts. They are firmly connected using the tool 10.

The outriggers 6 and T at the front and rear ends of the tank are provided with a support shaft 11 located directly below the tank center line and parallel to the center line, which is pivoted to a girder member 12 mounted between the left and right subframes, while An elastic body 14 made of a rubber material or the like is interposed between the support plate 13 located on the side of the subframe 2 and attached to the subframe 2, and the outriggers 6 and T to connect them.

This elastic body 14 is for absorbing the lateral vibration of the tank body, that is, the movement about the support shaft 11. An appropriate and effective example of this is as shown in Fig. 4, when the tank body is normally in an upright position. Alternatively, as shown in FIG. 5, the tank body 4 may be oriented in the tangential direction of an arc centered on the support shaft 11 to face the lateral vibration of the tank body 4.
Various configurations can be considered, such as one with a configuration that supports . Further, a torsion spring device 15 of a well-known construction that generates a torsional reaction force by movement about the support shaft 11 is installed at the pivot point formed by the support shaft 11. With the above configuration, vibrations caused when the vehicle is running, twisting of the chassis frame, etc., are handled by the cushion material 3 interposed between the chassis frame 1 and the subframe.
In addition to the absorption by the outriggers 6 at the front and rear ends of the tank,
, 7 and the subframe 2 while allowing movement around the support shaft 11 connecting the support plate 13 and the outrigger 6.
, 7 and a torsion spring device 15 installed on the support shaft 11, the vibrations of the tank body 4 are reduced. At the center of the tank, where torsional deformation is minimized, the tank body and subframe are directly fixed, so the lashing force of the tank body to the chassis frame is strong enough to prevent damage in the event of a collision, etc. Even in this situation, there is no fear that the tank will disengage.

The front and rear ends of the tank have a degree of freedom that allows for lateral vibration of the tank and torsional deformation of the chassis frame.
Here, the torsion spring device and the elastic body are used to maintain the normal state as much as possible, so excess kinetic energy due to torsional deformation of the chassis frame due to bounce of the vehicle body when driving on rough roads is absorbed. , which does not adversely affect the cargo and does not cause strain on each component. In addition, because the tank is fixed using an outrigger method, it can be used even if the width of the chassis frame of the vehicle is different (
Even if the vehicles are from different manufacturers, etc., the tanks themselves can be standardized, and tanks can be stocked. As explained above, even if the vibration systems on the chassis side and tank side of a tank lorry are different, the device of the present invention can absorb this vibration, improve the ride comfort of the vehicle, and eliminate any negative effects on the cargo. It also has sufficient strength to secure the tank side, which is highly rigid, and the chassis side, which is constantly subject to torsional deformation.It does not put strain on each member of the soil, has great durability, and contributes to the safe operation of the vehicle. Moreover, it is a technical invention that has various effects such as being easily implemented in various tank trucks and having high versatility.

[Brief explanation of drawings]

Figure 1 is an overall view of a tank truck to which the device of the present invention is applied;
Figure 2 is an enlarged cross-sectional view of the central fixing part of the tank, Figure 3 is an enlarged cross-sectional view of the front end of the tank as seen in the longitudinal direction of the tank, and Figures 4 and 5 are the front and rear ends of the tank. FIG. 3 is an enlarged sectional view showing an elastic body interposed configuration. 1... Chassis frame, 2... Sub frame, 3... Cushion material, 4...
・Tank body, 5, 6, 7...Outrigger, 8
, 9...Mounting seat, 10...Stopper, 11
......Spindle, 12...Girder member, 13...
...Support plate, 14...Elastic body, 15...
...Torsion spring device.

Claims (1)

[Claims] 1. In a tank lorry with a tank mounted on the chassis frame via a cushioning material and a sub-frame, the central part of the tank is fixed to the sub-frame, and the front and rear ends of the tank are directly below the tank center line, and the tank is attached to the center line. Tanks of a tank lorry are pivotally connected via parallel support shafts, the pivot includes a torsion spring device, and an elastic body for preventing lateral vibration is interposed on the side of the pivot. Lashing device.