JPH0716774Y2 - Boom leveler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a boom leveler applied to a boom type vehicle such as a shovel loader to know a boom level.

(Prior Art) Conventionally, a boom type vehicle such as a shovel loader has not been provided with a boom leveler for knowing a level such as a lift of the boom or a reach amount.

Therefore, the operator could not know the boom level accurately.

(Problems to be solved by the invention) In view of the above-mentioned problems, the present invention was devised to solve this problem, and the purpose thereof is to provide a boom leveler capable of accurately knowing the boom level. To provide.

(Means for Solving the Problem) The boom leveler of the present invention is basically a fixed side boss,
A movable boss that is rotatably provided with respect to the fixed boss, a scale that is provided on the outer periphery of either the fixed boss or the movable boss and indicates the level of the boom, and the fixed boss and the movable side It is characterized in that it is composed of a base mark provided on the outer periphery of either of the bosses.

(Operation) When the movable boss rotates with respect to the fixed boss, the scale and the base mark relatively rotate to display the boom level, which can be known by the operator visually observing the level.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing a boom type vehicle to which a boom leveler according to a first embodiment of the present invention is applied. FIG. 2 is an enlarged perspective view showing the vicinity of the boom leveler.

The boom leveler 1 is composed of a fixed side boss 2, a movable side boss 3, a scale 4, and a base mark 5 as main parts, and is applied to the boom type vehicle 100.

In this example, the boom-type vehicle 100 is a shovel loader, and the boom-type vehicle 100 and a boom 102 provided so that the boom 102 can be elevated.
And a tension bar 103 provided on the vehicle body 101 so that it can be elevated and lowered,
Bell crank 104 that connects the ends of boom 102 and tension bar 103 to each other, and bucket 1 that can be elevated
05, a boom cylinder 106 provided between the vehicle body 101 and the boom 102, and a bucket cylinder 107 provided between the bell crank 104 and the bucket 105. The pivot points A, B, C, D
A virtual quadrilateral that connects is forming a parallelogram.

The fixed side boss 2 forms a basic part of the boom leveler 1, and is provided on the vehicle body 101 at the pivot point A in this example.

The movable boss 3 is provided so as to be rotatable with respect to the fixed boss 2. In this example, the boom 10 at the pivot point A is
The one provided in 2.

The scale 4 is provided on the outer circumference of either the fixed boss 2 or the movable boss 3 to indicate the level of the boom 102. In this example, the boom 102 is lifted on the surface of the vinyl sheet 6 that can be adhered. A graduation line 7 and a graduation number 8 representing the above are printed and adhered to the outer periphery of the fixed side boss 2.

The base mark 5 is provided on the outer periphery of the other of the fixed side boss 2 and the movable side boss 3, and in this example, the arrow 10 and the character indicating the type of level (boom) are provided on the surface of the vinyl sheet 9 that can be adhered. (Lift height) 11 is printed and adhered to the outer periphery of the movable side boss 3.

Next, the operation will be described based on such a configuration.

When the boom 102 is raised to the vehicle body 101, the fixed side boss 2
On the other hand, the movable side boss 3 is rotated, the scale 4 and the base mark 5 are relatively rotated, and the lifting height of the boom 2 is displayed, which can be known by the operator's visual observation.

Next, a second embodiment of the present invention will be described.

FIG. 3 is a side view showing a boom type vehicle to which the boom leveler according to the second embodiment of the present invention is applied.

In the second embodiment, the boom type vehicle 100 is a reach type shovel loader, which includes a vehicle body 101, a reach guide 108 that can be tilted forward and backward on the vehicle body 101, and a second body that is tiltable forward and backward on the vehicle body 101. Tension bar 109, second bell crank 110 connecting these upper ends, and reach guide 1
The boom 102 that can be elevated to the upper end of 08 and the second bell crank 110, the tension bar 103 that can be elevated to the second bell crank 110, the boom 102 and the tension bar 10
A bell crank 104 that connects the tips of the three, a bucket 105 that can be elevated to the bell crank 104, a boom cylinder 106 that is interposed between the vehicle body 101 and the boom 102, and a bell crank 104.
And a bucket cylinder 107 interposed between the bucket 015 and the bucket cylinder 015, and the virtual quadrilateral connecting the pivot points A, B, C, D and the pivot points A, E, F, G forms a parallelogram. ing.

Thus, in the second embodiment, although not shown, the boom 102 is attached to the fixed side boss 2 provided on the second bell crank 110 at the pivot point B and the movable side boss 3 provided on the tension bar 103. A boom leveler 1 for knowing the lift of the boom is provided, and a boom is provided at the fixed side boss 2 provided on the second bell crank 110 at the pivot point E and the movable side boss 3 provided on the second tension bar 109. A boom leveler 1 is provided to know the reach amount of 102.

In the boom leveler 1 for knowing the reach amount of the boom 102, the scale 4 and the base mark 5 represent the reach amount of the boom 102.

The fixed boss 2 and the movable boss 3 are the vehicle body 101 and the boom 102 at the pivot point A in the first embodiment, and the second bell crank 110 and the tension at the pivot point B in the second embodiment. Bar 1
03, the second bell crank 110 and the second tension bar 109 at the pivot point E, but not limited to this, for example, in the first embodiment, the vehicle body 101 and the tension bar 103 at the pivot point B. In the second embodiment, the second bell crank 110 and the boom 102 at the pivot point A, and the second bell crank 110 and the reach guide 108 at the pivot point A may be used.

In the above embodiment, the scale 4 and the base mark 5 are provided on the fixed side boss 2 and the base mark 5 on the movable side boss 3. However, the present invention is not limited to this, and they may be reversed, for example.

The scale 4 and the base mark 5 are made of the vinyl sheets 6 and 9 which can be adhered in the above embodiment, but the present invention is not limited to this, and a magnet seal which can be magnetically adhered may be used. In this case,
It can be attached to and detached from the fixed side boss 2 and the movable side boss 3, and can be easily set in a state where the operator can easily see it.

Although the boom type vehicle 100 is the shovel loader or the reach type shovel loader in the above-described embodiment, the boom type vehicle 100 is not limited to this and may be, for example, a wheel loader, a skid steer loader, or a small crane.

(Effects of the Invention) As described above, according to the present invention, the following excellent effects can be obtained.

(1) Since it is composed of the fixed side boss, the movable side boss, the scale, and the base mark, the boom level can be accurately known.

(2) Since only the scale and the base mark are provided on the fixed side boss and the movable side boss, the structure is extremely simple and the cost is not so high.

(3) When the scale and the base mark can be attached to and detached from the fixed side boss and the movable side boss, the operator can easily set the scale and the base mark so that they can be easily viewed.

[Brief description of drawings]

FIG. 1 is a side view showing a boom type vehicle to which a boom leveler according to a first embodiment of the present invention is applied. FIG. 2 is an enlarged perspective view showing the vicinity of the boom leveler. FIG. 3 is a side view showing a boom type vehicle to which the boom leveler according to the second embodiment of the present invention is applied. 1 …… Boom leveler 2 …… Fixed side boss 3 …… Moveable side boss 4 …… Scale 5 …… Base mark

Claims (1)

[Scope of utility model registration request] 1. A fixed boss, a movable boss rotatably provided with respect to the fixed boss, and a boom level provided on the outer circumference of either the fixed boss or the movable boss. A boom leveler comprising a scale and a base mark provided on the outer circumference of either the fixed side boss or the movable side boss.