JPS5917738Y2 - Automobile tail cab locking device - Google Patents

Description

[Detailed description of the invention] The present invention is an improvement of a locking device for a tilt cab for automobiles, in particular, a locking device consisting of a hook provided on the cab side and an eye bolt attached to the chassis side via a rebound rubber. It is related to.

This type of locking device is generally installed at one location in the center or two locations on the left and right behind the cab, but in either case, due to assembly dimensional errors between the cab and chassis, the specified tightening force may not be obtained. If not, you will have to adjust this.

The object of the present invention is to provide a new locking device that has a simple structure and can perform the above-mentioned adjustment steplessly, extremely easily and reliably.An example of the locking device will be described below with reference to the drawings. do.

In Figures 1 and 2, 1 is a bracket provided on the chassis side, 2 is a rebound rubber, 3 is an eye bolt, and 4 is a cylindrical adjuster, which is slidably fitted into the eye pole 1-3, and one end of the bracket. A flange 40 extending in the outer radial direction is formed on the flange 40 .

Threaded portions 30 and 31 are formed on both ends of the eyebolt 3, and lock nuts 5 and 6 are coupled to them, respectively.

The adjuster 4 is fixed onto the eye bolt 3 by tightening the lock nuts 5 and 6 from both ends (the mounting position is defined).

By operating the lock nuts 5 and 6, the adjuster 4 can be moved axially on the eye bolt.

Reference numeral 7 denotes an adjustment nut, which is coupled to a threaded portion 41 formed on the adjuster 4.

70 is a lock nut for the adjustment nut 7.

The rebound rubber 2 is attached between the flange 40 of the adjuster 4 and the adjustment nut 7, and the flange 4
Bracket 1 is located between 0 and rebound rubber 2.

Therefore, by tightening this adjustment nut 7, the rebound rubber 2 can be compressed to a specified value.

In the manner described above, the eye bolt 3 is attached to the chassis via the rebound rubber 2, which has been previously supported by a preload (see FIG. 1).

The tilt cab and chassis are fixed by engaging a hook (not shown) provided on the cab with the eyeball 32 of the eye bolt 3 and pulling it up in the direction of arrow A in FIG. 2 using a suitable operating device. (See Figure 2).

The tightening force in the direction A acts through the adjustment nut 7 to compress the rebound rubber 2 against the chassis side bracket 1.

The adjuster 4 together with the eye bolt 3 moves toward the cab by the amount by which the rubber 2 is compressed.

This amount of movement, ie, the tightening force, is expressed as a gap h between the bracket 1 on the chassis side and the flange 40 of the adjuster 4.

Therefore, by operating the lock nut while keeping the hook on the cab side and the eye bolt 3 in the locked state as shown in Fig. 2, the adjuster 4 can be moved in the axial direction on the eye bolt 3. Since the tightening force changes, the gap h can be adjusted freely.

Since the present invention is configured as described above, the tightening force of the rebound rubber can be freely and easily applied steplessly while the locking device is kept in the locked state, so that the dimensional difference between the cab and the chassis can be , if the specified tightening force is not obtained, or if the left and right tightening forces become unbalanced for the same reason when locking devices are used on the left and right sides, or if there is a change over time, etc. It is extremely useful for assembly and maintenance work.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention, and Fig. 2 is a cross-sectional view showing an embodiment of the present invention.
FIG. 6 is another operating state diagram of FIG.

Claims (1)

[Scope of utility model registration request] A cylindrical adjuster 4 having a flange 40 at one end is attached to the eyebolt 3 so as to be movable in the axial direction by two lock nuts 5 and 6 connected to the eyebolt 3, and a cylindrical adjuster 4 having a flange 40 at one end is attached so as to be movable in the axial direction. A locking device for a tilt cab for an automobile, characterized in that an eye bolt 3 is attached to a chassis side bracket 1 via a rebound rubber 2.