JPS6221496Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is attached to a small power working vehicle,
The present invention relates to an outrigger extension and storage control device suitable for manually operated outrigger extension and storage.

(b) Conventional technology Conventionally, in order to control the extension width, storage, and other positions of the outriggers attached to this type of small power working vehicle, a plurality of adjustment holes are provided in each of the inner and outer cylinders for adjusting the expansion and contraction of the outriggers. The positioning is performed by fitting and fixing engagement pins into these adjustment holes from the outside of the outer cylinder. For example, there is "Utility Model Application Publication No. 53-137415". These have a pin on the fixed side that engages with an adjustment hole projected from the outrigger on the fixed side by a cam lever or the like.

(c) Problems with the prior art However, with this method, the operation for aligning the adjustment holes is troublesome, and it is difficult to insert the engagement pins aligned in this way into each adjustment hole. This required extremely troublesome operations, such as having to take it out again when making adjustments again.

(d) Means for solving the problems Therefore, this invention has the following configuration mainly to solve the above-mentioned structural drawbacks.

By sliding the inner cylinder against the outer cylinder,
An outrigger fixed to the outer end position of the inner cylinder is configured to extend and be stored, and one side of the outer cylinder is provided with a plurality of adjustment holes in a row that are visible from the outside of the vehicle body, and An engaging pin protruding toward the adjustment hole group and energized so as to selectively engage the adjustment holes is installed on the cylinder side, and the engaging pin is housed inside the inner cylinder. It is configured so that it can be engaged and disengaged by a rod that is pushed and pulled in the sliding direction of the inner cylinder, and the lever at the outer end of the rod is located near the handle for inward movement.

(E) Effect According to this invention, the engagement pin 13 can be easily moved by simply operating the lever 15 as described above.
After disengaging the outriggers 9 from the adjustment holes 12 in the outer cylinder 10 and setting the outriggers 9 to their respective desired positions, when releasing the lever 15, the engagement pin 13 is released.
is again urged outward and acts in a protruding state, so that it is automatically engaged with the adjustment hole 12 of the outer cylinder 10 at the arbitrarily selected required position.

(f) Example Next, an example of implementing this invention will be explained based on the drawings.

First, an outline of a crane-equipped transport vehicle to which this invention is applied is shown in Figures 1 and 2.

According to this, the structure of this type of transport vehicle has a running section A at the bottom, which is further divided into front and rear sections, with a control section B at the rear and a loading section C at the front, and from the control section B to the loading section C. Crane part D
is configured.

The running section A usually consists of wheels 2, 2, etc. covered with a crawler 1, and serves to support and run the vehicle body.

The control section B is where a driver sits on the seat 3 and operates various operating levers to drive and work on the vehicle. The engine, hydraulic mechanism, etc. are also mounted in this part.

The loading section C is composed of a flat loading platform 4 and is used to load objects.

The crane part D is a column 5 installed vertically upward.
A telescopic boom 6 is horizontally extended above the column 5, and the column 5 is rotatable and the vertical angle of the boom 6 relative to the column 5 can be changed. Further, a hook 7 is attached to the tip of the boom 6 by a wire 8 so as to be movable up and down, and is used to stack and unload cargo.

Furthermore, for such a transport vehicle, the crane part D
Outriggers 9 are placed on each side of the vehicle body to support and stabilize the vehicle body during work.

In this invention, a control device for extending and storing the outriggers as shown in detail in FIG. 3 is further provided for the outriggers of the transport vehicle having the above-mentioned overall configuration. That is, according to this, the inner cylinder 11 is fitted into the outer cylinder 10 fixedly disposed on the vehicle body side so as to be slidable back and forth.

An outrigger 9 is attached to the outer end of the inner cylinder 11.
Therefore, when the inner cylinder 11 is extended with respect to the outer cylinder 10, the outrigger 9 is in a widened working state, When it is shortened to within 10, it is in the stored state.

In order to adjust and control such expansion and contraction, the following configuration is adopted. That is, a plurality of adjustment holes 12 are formed on one surface (upper wall surface) of the outer cylinder 10 at appropriate intervals. A lever 15 that can be operated in a direction is provided, and an engaging pin 13 that can be freely extended is connected to a rod 16 at the tip of the lever 15.
3 is biased toward the insertion side by a spring 14 so as to be engaged.

The engagement pin 13 is normally biased by a spring 14 in the direction of protruding outward from the inner cylinder 11 side, and can be moved back by pulling the lever 15 toward you. When the arm 17 is rotated clockwise about the fulcrum 18 against the spring 14 via the rod 16, arm 17, etc., the engagement pin 13 is brought into engagement with the adjustment hole 12 of the outer cylinder 10. The connection is canceled.

Furthermore, when the lever 15 is released, the engagement pin 13 is
The spring 14 automatically acts in the direction of the projection.

Furthermore, an opening A is provided on the side of the outer cylinder so that the final adjusted position of the outrigger can be visually observed.

In the figure, reference numeral 19 denotes a handle for moving the inner cylinder for extending and storing the outriggers, and the lever 15 is positioned near the handle. Reference numeral 20 indicates a support for the arm 17; 21 and 22 indicate a locking pin protruding from the engagement pin 13 and an elongated hole for sliding formed in the arm 17, respectively.

(G) Effects Therefore, when extending or retracting the outrigger 9, the position can be set by simply operating the lever in the same direction as the sliding direction (pushing or pulling), which is different from the conventional method. This completely eliminates the complicated operation of engaging individual pins one by one from the outside of the outer cylinder, and since the adjustment hole of the engaging pin is relatively close to the operating side, it can be seen visually and still functions as a scale. At the same time, if the head of the pin even slightly approaches the position of the adjustment hole, it will automatically protrude and engage. In addition, in this embodiment, a transport vehicle with a crane is taken as an example, but in a vehicle equipped with outriggers like this, for example, whose upper body rotates with respect to the traveling part, the adjustment member is attached to the outrigger as in the past. Since it does not protrude upward, even if the upper body turns, it will not interfere with the adjustment of the outriggers, and various practical effects can be expected as a control device for extending and storing this type of outriggers. It is something.

[Brief explanation of the drawing]

FIG. 1 is a side view of the whole, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view of the main part. 9...Outrigger, 10...Outer tube, 11...
Inner cylinder, 12...adjustment hole, 13...engaging pin, i...
...Opening, 15...Lever, 16...Rod, 1
9... Handle for moving the inner cylinder.

Claims (1)

[Scope of utility model registration request] When the inner cylinder 11 slides with respect to the outer cylinder 10, the outrigger 9 fixed at the outer end position of the outer cylinder 10 is extended and stored. Adjustment holes 12 that are visible from the outside of the vehicle body are provided in a row, and the inner cylinder 11 is biased so as to protrude toward the adjustment holes 12 and selectively engage the adjustment holes. An engaging pin 13 is installed, and the engaging pin 13 can be engaged and disengaged by a rod 16 that is housed inside the inner cylinder 11 and operates to push and pull in the sliding direction of the inner cylinder. An outrigger extension and storage control device characterized in that a lever 15 at the end is located near a handle 19 for moving the inner cylinder.