JPS5912285Y2 - Elevation angle indicating device for front loader equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an elevation angle indicating mechanism in a front loader device.

As is well known, a front loader attached to an agricultural tractor, etc. has a pair of front booms placed on both sides of the tractor body for raising and lowering, and a packet is installed at a fixed point at the front end of the boom. Since the packet is hidden by the tractor body, it is difficult for the operator to check the status of this packet.

Therefore, for example, when lowering the boom and digging, it is difficult to determine whether the packet angle is upward or downward.
This has caused an inconvenience in that the operator has to get up and check while working.

The present invention has solved the above problem, and its characteristics are that the tractor is equipped with a front boom that can be raised and lowered, and the loader body, such as a packet, is attached to the front end of the boom so that it can be raised and lowered with respect to the boom. An elevation angle indicating part having an indicating surface parallel to the loader body is pivotally supported near the base of the front boom, and the supporting part is linked to the loader body via a parallel link. be.

A specific example shown in the drawings will be explained below.

FIG. 1 shows an example of an agricultural tractor equipped with a front loader. Reference numeral 1 indicates a front boom extending forward through both left and right sides of the tractor body 2, and the boom 1 can be raised and lowered by a lift cylinder 3. has been done.

A packet-like loader main body 5 is pivotally supported at the tips of both front booms 1 via a first pivot 4, and the main body 5 is movable up and down via a dump cylinder 6.

7 is a second axis provided just above the first axis 4;
8 is a third pivot provided in the middle of the front boom 1, and 9 is a fourth pivot provided above it, between the third and fourth pivots 8.
9 is connected as a link with an elevation angle indicating section (piece) 10 in an inverted L-shaped posture that is pivotally supported on a third pivot 8, and a second
An interlocking link 11 is connected between the fourth pivots 7 and 9 to form a parallel link 15.

The L-shaped elevation angle indicating section 10 has an indicating surface 10a that is parallel to the loader main body 5, and the indicating surface 10a allows the loader main body 5 to be horizontal as shown in the first figure by the action of the parallel link 15. It also becomes horizontal when it is level, and on the other hand, it moves up and down synchronously in accordance with the elevation.When digging, it points downward to notify the operator of this, and when it is level and scoops in, it can be easily confirmed by the indication surface 10a. It is something.

This invention is as described above, and since the direction unit instructs the elevation angle of the loader main body for packets, etc., the operator does not have to stand up, thus improving work efficiency and preventing the operator from taking an unreasonable posture. This reduces fatigue.

In particular, in this invention, the elevation angle indicator is equipped with an indicator surface that is parallel to the loader body, so just by looking at the indicator surface,
The elevation angle of the loader body can be easily determined, and the present invention does not require the troublesome task of providing an elevation angle indicator and reading the angle of the indicator.

In addition, since the indicator is linked to the loader body via a parallel link, the elevation and elevation of the loader body can be accurately transmitted to the indicator, and therefore the elevation angle of the loader body can be accurately known with a simple structure. I can do it.

[Brief explanation of drawings]

FIG. 1 is a side view of a tractor with a loader showing an example of this invention, and FIG. 2 is an external perspective view of the indicator. 1... Front boom, 2... Aircraft,
3... Lift cylinder, 5... Loader main body, 10... Elevation angle indicator, 10 a...
...Instruction surface, 15...Parallel link.

Claims (1)

[Scope of utility model registration request] In a tractor equipped with a front boom that can be raised and lowered, and a loader body such as a packet is provided at the front end of the boom so that it can be raised and raised with respect to the boom, an indicator surface parallel to the loader body is provided near the base of the front boom. What is claimed is: 1. An elevation angle indicating mechanism for a front loader apparatus, characterized in that an elevation angle indicating section having an elevation angle indicating section is pivotally supported, and the support section is interlocked with a loader main body via a parallel link.