JPH0746590Y2 - Widening mechanism for outriggers - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an outrigger mounting mechanism that is mounted on a self-propelled work vehicle equipped with crawlers and a large number of rubber wheels to stabilize the self-propelled work vehicle. Is.

"Prior Art" A pair of outriggers are provided on the left and right of a self-propelled work vehicle, for example, a crawler to which a work platform for aerial work is attached, in order to maintain stability when the work platform is elevated. .

Also, when the crawler is equipped with a backhoe, an outrigger is also provided to stabilize the backhoe during work.

A drive shaft for rotating the outrigger up and down is attached to the base of the outrigger, and a hydraulic cylinder mounted on the crawler drives the drive shaft to move the outrigger up and down. belongs to).

Then, the outrigger was brought into contact with the lateral width of the crawler, that is, near the outside of the left and right endless tracks, and the outrigger was lifted with the width as it was.

"Problems to be solved by the invention" By the way, it goes without saying that when the outrigger is grounded, the wider the left and right sides, the better the stability. However, conventional outriggers have a width when they are grounded,
It was the same as when I lifted it, and I couldn't widen it anymore.

On the contrary, the width when lifted is the same as when it is grounded, so in a place where the entrance is narrow like a vinyl house,
The outrigger interfered and could not enter,
Also, in orchards, outriggers sometimes interfered with trees.

"Means to solve the problem" This device solves the drawbacks of conventional outriggers, and when it is grounded, the width expands to increase stability, and when lifted, the width narrows, even on narrow roads. For the purpose of enabling passage, the following is the summary.

That is, a guide member having a sliding contact surface with an outrigger is provided on the crawler by descending laterally outward of a self-propelled work vehicle, for example, a crawler.

Also, a locking means for pivoting the base of the outrigger to the drive shaft so that the outrigger can be rotated laterally as the outrigger moves up and down.
For example, a pin is provided.

"Operation" When lowering the lifted outrigger to ground it,
The outrigger moves downward while sliding on the sliding contact surface of the guide member. The sliding surface slopes laterally outward, and the outrigger is pivotally supported in the lateral direction, and its base is pivotally supported by a locking means (in this case, a pin). Therefore,
The outrigger rotates laterally and descends to contact the ground.

On the contrary, when lifting the grounded outrigger, the outrigger moves upward while sliding on the sliding contact surface of the guide member, and moves laterally inward.

"Effect" When the left and right outriggers are grounded, their width automatically expands, increasing stability.

Further, when the outrigger is lifted and moved, the width of the outrigger is narrowed, which is convenient for the movement.

"Embodiment" Hereinafter, the present invention will be described in detail based on illustrated embodiments.

Reference numeral 1 is a crawler of a self-propelled work vehicle, and 2 is its frame.
3 is a hydraulic cylinder equipped in the crawler 1, 3a is a tube, and 3b is a rod. Then, the tube 3a or the rod 3b is selected, and one of them can be fixed by the operation of the operator. The end of the rod 3b is pivotally attached to a rotatable hitch 4 in the front part of the frame 2, and drives the grader 5 by the operation of the hydraulic cylinder 3. Although not shown, it is optional to pivotally attach the end of the rod 3b to a mounting member fixed to the frame 2.

Reference numeral 6 denotes a drive shaft, which is laterally pivoted on the frame 2.
A mounting member 7 is fixed to one end of the drive shaft 6 on the hydraulic cylinder 3 side, and an end of the tube 3a is pivotally attached to the mounting member 7 by a pin 8. Therefore, the hydraulic cylinder 3
The drive shaft 6 rotates by the operation of.

Reference numeral 9 is a pair of left and right outriggers, and legs 10 are curved downward.
A U-shaped support member 11 is fixed to the base of the. Both ends of the drive shaft 6 are loosely fitted to the support member 11 and locked by the pins 12 of the locking means. This pin 12
The support member 11, that is, the outrigger 9 is pivotally supported laterally rotatably. Therefore, as the outrigger 9 is rotated in the vertical direction, the support member 11 can be rotated laterally outward.
Is pivoted by pin 12.

Reference numeral 13 denotes a pair of guide members protruding laterally outward from the frame 2 and having a sliding contact surface 14 that descends obliquely outward.
When the leg 10 of the outrigger 9 moves up and down, this sliding contact surface 14
Slide (see FIG. 2). In the case of the embodiment, the guide member
Reference numeral 13 is fixed to a reinforcing pipe frame 2 ′ that is erected on the frame 2.

A tension spring 15 connects the frame 2 and the leg portion 10.

Therefore, as shown in FIG. 3, when the hydraulic cylinder 3 is retracted in a state where the outrigger 9 is grounded, the outrigger 9 is raised by the rotation of the drive shaft 6 as shown by an imaginary line in FIG.

The leg portion 10 of the outrigger 9 slides on the sliding contact surface 14 of the guide member 13 and ascends, and pivots laterally inward about the pin 12 as an imaginary line in FIG. That is, the width of the left and right outriggers 9 becomes narrow.

On the contrary, when the hydraulic cylinder 3 is extended from the state in which the outrigger 9 is lifted, the leg portion 10 of the outrigger 9 descends.
Slides on the sliding contact surface 14 and rotates laterally outward. Therefore, when the outrigger 9 is grounded, the width of the outrigger 9 is wide.

Here, when the outrigger 9 is lifted, the outrigger 9 is housed inside the endless track of the crawler 1, and
The sliding contact surface 14 of the guide member 13 is formed so as to be grounded to the outside of the endless track when grounded.

When the work machine of the crawler 1 is a work platform at high places, the outriggers 9 may be provided in front of and behind the crawler 1, and the guide members 13 with which the legs 10 of the crawler 1 are in sliding contact may be attached to the frame 2.

Further, in the embodiment, the case where the outrigger 9 is operated by the hydraulic cylinder 3 has been shown, but it can also be carried out manually.

[Brief description of drawings]

FIG. 1 is a plan view of relevant parts showing a widened state of the outrigger, and FIG. 2 is a rear view showing a state in which the outrigger slides on a sliding contact surface of a guide member. FIG. 3 is a side view of a crawler to which an outrigger is attached. 1 …… Crawler (self-propelled work vehicle) 2 …… Frame 3 …… Hydraulic cylinder 5 …… Grader 6 …… Drive shaft 9 …… Outrigger 12 …… Pin (locking means) 13 …… Guide member 14 …… Sliding Contact

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right outriggers, which are attached to the lateral side of a self-propelled work vehicle such as a crawler and rotate in a vertical direction around a drive shaft, are slanted outward toward the lateral side of the self-propelled work vehicle. A guide member having a sliding contact surface with the outrigger is provided on the self-propelled work vehicle, and locking means for pivotally supporting the base of the outrigger on the drive shaft is provided so as to be rotatable laterally as the outrigger moves up and down. An outrigger widening mechanism characterized by being provided.