JPH01111930A - Two-way blade device - Google Patents

Abstract

PURPOSE:To raise the efficiency of loading operation within a ship by a method in which a supporter, an intermediate supporter, and back and forth boards specifying curved front and back faces are provided, and a blade and fluid pressure cylinder mechanism for tilting and angling are provided for the intermediate supporter. CONSTITUTION:A supporter 6, an intermediate supporter 4 connected rotatably around the first axis 34 extending before and back of the supporter 6, and front and back boards 62 and 64 specifying the curved front and back faces are provided. The supporter 4 is provided with a blade 2 connected rotatably around the second axis 78, a fluid-pressure tilting cylinder mechanism 52 to turn the supporter 4 and the blade 2 around the first axis 34 in relation to the supporter 6, and fluid-pressure angling cylinder mechanisms 96a and 96b to turn the blade 2 around the axis 78 in relation to the supporter 4 between the supporter 4 and the blade 2. Loading operation within a ship can thus be performed with high efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a two-way blade device mounted on the front end of an earthmoving vehicle.

<Prior Art> Conventionally, blades have been provided with a two-way blade, in which the front surface is used as a working surface when performing so-called pushing work, and the rear surface is used as a working surface when performing so-called pulling work or raking work. Various devices have been proposed. Such a blade device is attached to the front end of an earthmoving vehicle such as a loader, and is used for cargo handling work onboard ships.

However, conventional blade devices are only equipped with either an angle mechanism or a tilt mechanism, which makes scraping work (scraping off of coal and other materials that exist near the walls and corners of the cargo hold) difficult. This is difficult, and this work is performed by humans.

In order to carry out cargo handling operations on a ship as desired, including pushing, pulling, raking, scraping, etc., the blade, which is a working device, needs to rotate in addition to tilting forward and backward. .

<Object of the Invention> The present invention has been made in view of the above facts, and its main purpose is to provide a novel two-way blade device that is equipped with a tilt mechanism in addition to an angle mechanism.

<Summary of the Invention> According to the present invention, a support body attached to the front end of an earthmoving vehicle, an intermediate support body connected to the support body so as to be pivotable about a first axis extending in the front-rear direction, and a curved a plate main body having a front board defining a front surface and a rear board defining a curved rear surface and connected to the intermediate support body so as to be pivotable about a second axis extending in the vertical direction; the support body and the intermediate support body; a tilting hydraulic cylinder mechanism that is interposed between the support body and rotates the intermediate support body and the blade body about the first axis with respect to the support body;
A two-way blade device comprising: an angle hydraulic cylinder mechanism interposed between the intermediate support and the blade body and configured to rotate the blade body relative to the intermediate support about the second axis; is provided.

<Preferred Specific Example of the Invention> A specific example of a two-way blade device configured according to the present invention will be described below with reference to the accompanying drawings.

1 to 3, the illustrated blade device comprises a blade body 2, an intermediate support 4 and a support body 6. The blade device shown in FIGS.

A support body 6 attached to the front end of an earthmoving vehicle such as a loader is attached to a front plate 8 and a rear surface of the front plate 8 in a lateral direction (a first
It has a pair of support plates loa and 1°b spaced apart from each other in the direction perpendicular to the plane of the paper in the drawings (in the left-right direction in FIGS. 2 and 3). Support plate 10
Hook portions 12a and 12b are provided at the upper ends of support plates 10a and 10b, and connecting holes 14 (only one is shown in FIG. 1) are provided at the lower ends of support plates 10a and 10b.
is formed. Further, a connecting plate 16 is provided between the pair of support plates 10a and 10b.

The support body 6 thus constructed is attached to a hitch 18 attached to the front end of an earthmoving vehicle, as shown in FIG. That is,
The support body 6 connects the upper engaging portion of the hitch 18 to the hook portion 12a.
and 12b and a connecting pin (not shown).
By attaching it to the hitch 18 through the connecting hole 14, it is detachably attached to the hitch 18. In addition, the hitch 18 has a boss portion 2o provided at its lower end that is rotatably connected to a lift arm (not shown) via a pin, and a boss portion 22 provided at an intermediate portion of the hitch 18 that is connected via a pin to a lift arm (not shown). It is pivotally connected to a tilt link (not shown).

The intermediate support 4 disposed on the front side of the support body 6 includes a horizontal plate 24 and a vertical plate 26. The horizontal plate 24 extends forward substantially horizontally, and the vertical plate 26 extends substantially vertically upward from the upper surface of the horizontal plate 24 at its rear end. This horizontal plate 2
An inclined reinforcing plate 28 is disposed between the front end of the vertical plate 26 and the upper end of the vertical plate 26.

The support body 6 and the intermediate support 4 are rotatably connected via a first axis extending in the front-rear direction (the left-right direction in FIG. 1, the up-down direction in FIG. 2, and the direction perpendicular to the plane of the paper in FIG. 3). has been done. In the specific example, a boss portion 30 is provided approximately at the center of the front plate 8 of the support body 6, and a boss portion 32 is also provided approximately at the center of the vertical plate 26 of the intermediate support body 4. These boss parts 3o and 32
By attaching a pin 34 (constituting a first axis extending in the front-rear direction) through the support body 6 and the intermediate support 4 relative to each other in the directions indicated by arrows 36 and 38 (FIG. 3). It is mounted so that it can rotate freely.

In connection with the fact that the support body 6 and the intermediate support body 4 are pivotable, they are further configured as follows. That is, at the rear end of the vertical plate 26 of the intermediate support 4, a pair of first receiving portions 40a and 40b are defined. In a specific example, as shown in FIG. 4, by attaching a lower plate 42, an intermediate plate 44, and an upper plate 46 to the rear surface of the front plate 26 in a stacked state using mounting bolts 48,
The receiving portion 40a (
and 40b) (FIG. 4 shows the vicinity of the receiving part 40a). The width of the receiving part 40a (and 40b), that is, the distance between the lower plate 42 and the upper plate 46, is It is adjusted by changing the thickness of the shim 50 interposed between the upper plates 46. The receiving parts 40a and 40b are open inward (the right side of the receiving part 40a is open in FIG. 3, and the left side of the receiving part 40b is open in FIG. 3), and their bottom surfaces are open. extends in an arc shape in the vertical direction (see FIG. 3), while both ends of the front plate 8 of the support body 6 are connected to the receiving portion 40.
The front plate 8 is formed in an arc shape corresponding to the bottom shape of the front plates 8a and 40b, and both ends of the front plate 8 are slidably received in the receiving parts 40a and 40b. In the specific example, a pair of receiving portions 40a and 40b are provided on the vertical plate 26 of the intermediate support body 4, and both ends of the front plate 8 of the support body 6 are positioned within these receiving portions 40a and 40b. On the contrary, a pair of receiving portions may be provided on the front surface of the front plate 8 of the support body 6, and both ends of the vertical plate 26 of the intermediate support body 4 may be positioned within the receiving portions.

A tilting fluid pressure cylinder mechanism 52 (omitted in FIG. 2) is provided between the support body 6 and the intermediate support 4.
is mediated. In the specific example, a forwardly projecting mounting plate 54 is provided at the upper right end of the front plate 8 of the support body 6, and a forwardly projecting mounting plate 56 is also provided at the left upper end of the vertical plate 26 of the intermediate support 4. is provided, and the fluid pressure cylinder mechanism 5 is connected to a pair of brackets 58 provided on the upper surface of one of the mounting plates 54 via pins.
The head sides (i.e. cylinders) of 2 are rotatably connected,
Further, the rod side (that is, the output rod) of the hydraulic cylinder mechanism is rotatably connected to a pair of brackets 60 provided on the upper surface of the other mounting plate 56 via a pin. As described above, when the tilting hydraulic cylinder mechanism 52 is extended (or retracted), the intermediate support body 4 is pivoted in the direction shown by the arrow 36 (or 38) with respect to the support body 6.

The illustrated blade body 2 also has a front board 62 that defines a concave curved front surface suitable for carrying out pushing operations, etc., and a rear board 64 that defines a concave curved rear surface suitable for carrying out pulling operations, etc. are doing.

The upper ends of the front board 62 and the rear board 64 are connected to the upper connecting plate 6.
A cutting edge 68 is fixed between the lower ends of the front board 62 and the rear board 64, and side plates 70 (see FIG. 1 and (only one of which is shown in FIG. 3) is provided.

The intermediate support 4 and the blade main body 2 are rotatably connected via a second axis extending in the vertical direction. In the specific example, a boss portion 72 is provided approximately at the center of the horizontal plate 24 of the intermediate support 4 .

Further, a recess 74 is provided in the lateral center of the blade main body 4, and the upper surface of the recess 74 is inclined downwardly toward the rear. An upper plate 76 is further disposed above the recess 74, and this upper plate 7
6 extends rearward substantially horizontally from one end connected to the upper connection plate 66, and the other end is bent downward and fixed to the bottom surface of the recess 74 (see FIG. 1). The blade body 2 includes a boss portion 72 and an upper plate 7.
By attaching a pin 78 (constituting a second axis extending in the vertical direction) through the intermediate support 4, the intermediate support 4 can be relatively pivoted in the directions shown by arrows 80 and 82 (FIG. 2). connected. In connection with the fact that the intermediate support 4 and the blade body 2 are rotatable, the blade body 2 is further configured as follows. That is, a pair of second receiving parts 84a and 84b are defined at both ends of the upper surface of the blade main body 2. In a specific example, as shown in FIG. 5, a lower plate 86 and an intermediate plate 8
8 and the upper plate 90 in a stacked state using the mounting bolts 92, the receiving portion 84a (and 84b) is defined between the lower plate 86 and the upper plate 90 (in FIG. 5, the receiving portion 84a (and 84b) is (Only the vicinity of the portion 84a is shown)
, the width of the receiving portion 84a (and 84b), that is, the lower plate 86
The distance between the intermediate plate 88 and the upper plate 90 is adjusted by changing the thickness of the shim 94 interposed between the intermediate plate 88 and the upper plate 90. The receiving portions 84a and 84b are open inward (the receiving portion 84a is open on the right side in FIG. 2, and the receiving portion 84b is open on the left side in FIG. 2), and their bottom surfaces are open. extends in an arc shape in the front-rear direction (see Figure 2). On the other hand, both ends of the horizontal plate 24 of the intermediate support 4 protrude somewhat to both sides than both ends of the vertical plate 26, and these ends are slidably received in the receiving parts 84a and 84b (related to this). Then, both ends of the horizontal plate 24 are connected to the receiving parts 84a and 8.
(formed in an arc shape corresponding to the bottom shape of the blade body 2);
a and 84b to connect the horizontal plate 24 of the intermediate support 4.
are located in the receiving portions 84a and 84b, but in contrast, the horizontal plate 2 of the intermediate support 4
A pair of receiving portions may be provided on the lower surface of the blade 4, and a portion of the blade body may be positioned within the receiving portions.

A pair of angle hydraulic cylinder mechanisms 968 and 96b (not shown in FIG. 3) are interposed between the intermediate support 4 and the blade body 2. In the specific example, one angle fluid pressure cylinder mechanism 96a is arranged on the left side of the intermediate support 4, and the other angle fluid pressure cylinder mechanism 96b is arranged on the fabric portion of the intermediate support 4.

That is, a pair of brackets 98 are provided at the lower left end of the vertical plate 26, and the upper plate 7 of the blade body 2 is provided with a pair of brackets 98.
A pair of brackets 10 are attached to an upright wall 100 fixed to
2, the head side (i.e. cylinder) of the hydraulic cylinder mechanism 96a is rotatably connected to the pair of brackets 98 via a pin, and the rond side (i.e. output rod) of the hydraulic cylinder mechanism 96b is provided. is rotatably connected to the pair of brackets 102 via a pin. Further, a pair of mounting brackets 104 are provided at the lower right end of the vertical plate 26, and a pair of mounting platens 106 are provided on the upright wall 100 of the blade body 4, and the other fluid pressure cylinder mechanism 96b is provided with a pair of mounting brackets 104. The head side is rotatably connected to a pair of brackets 104 via pins, and the rond side of this fluid pressure cylinder mechanism 96b is rotatably connected to a pair of brackets 106 via pins. As described above, when one of the angle hydraulic cylinder mechanisms 96a is extended (or retracted W1) and the other angle hydraulic cylinder mechanism 96b is contracted (or expanded), the Blade 2 is pivoted in the direction shown by arrow 80 (or 82).

Next, the effects of the blade device described above will be explained.

In order to rotate the blade body 2 to the right (or left), it is sufficient to extend (or contract) the fluid pressure cylinder mechanism 963 and simultaneously contract (or extend) the other fluid pressure cylinder mechanism 96b. As can be seen from FIG. 2, the blade body 2 is attached to the pin 78 with respect to the intermediate support 4.
(the second axis extending in the vertical direction) as the center and the arrow 8
0 (or 82), and the blade body 2 is thus pivoted to the right (or left) as required. During such turning, as can be understood from FIGS. 2 and 5, both ends of the horizontal plate 24 of the intermediate support 4 engage with a pair of receiving portions 84a and 8 defined in the blade body 2.
Move relatively within 4b.

Further, in order to tilt the blade main body 2, the fluid pressure cylinder mechanism 52 for tilting may be expanded (or contracted). In this way, as can be understood from FIG. 3, the intermediate support 4 (and the blade main body 2 integrally) is centered on the pin 34 (which constitutes a first axis extending in the front-rear direction) with respect to the support main body 6. The blade body 2 is thus tilted counterclockwise (or clockwise) in FIG. 3 together with the intermediate support 4.

As described above, the blade device is provided with a tilt mechanism in addition to the angle mechanism, and can therefore be conveniently used for cargo handling work on a ship.

Further, the above blade device also has the following features. That is, as understood from FIG. 1, the intermediate support 4 is arranged above the blade main body 2 (the blade main body 2 and the intermediate support 4 are connected so as to be pivotable about a second axis extending in the vertical direction). Furthermore, a support body 6 is disposed behind the intermediate support 4, and the intermediate support 4 and the support body 6 can be freely pivoted about a first axis extending in the front-rear direction. such an arrangement is possible by being connected to the blade), therefore substantially the entire front and rear surfaces of the blade body 2 act as working surfaces,
When moving the processed material, the same amount of catching as before is ensured.

Although a specific example of a two-way blade device configured according to the present invention has been described above, the present invention is not limited to this specific example, and various modifications and modifications can be made without departing from the scope of the present invention. It is.

For example, in the illustrated example, the supporting body of the blade device is configured to be detachably attached to a hinge attached to the front end of an earthmoving vehicle, but the present invention is not limited to this.
The present invention can be similarly applied to a case where such a support body is directly attached to the front end of an earthmoving vehicle (attached to a lift arm and a tilt link).

[Brief explanation of the drawing]

FIG. 1 is a side view showing a specific example of a two-way blade device constructed according to the present invention. 2 is a plan view showing essential parts of the two-way blade device of FIG. 1; FIG. 3 is a rear view showing essential parts of the two-way blade device of FIG. 1; FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. FIG. 5 is a sectional view taken along the line ■-■ in FIG. 2. 2...Blade body 4...Intermediate support body 6...Support body 8...Front plate 24...Horizontal plate 26... ... Vertical plate 34 ... Pin (first axis) 52 ... Tilt fluid pressure cylinder mechanism 62 ...
...Front board 64...Rear board 78...Pin (second axis)

Claims (1)

[Claims] 1. A support body attached to the front end of an earthmoving vehicle, an intermediate support connected to the support body so as to be pivotable about a first axis extending in the front-rear direction, and a curved front surface. a blade body having a front board defining a curved rear surface and a rear board defining a curved rear surface and connected to the intermediate support so as to be pivotable about a second axis extending in the vertical direction; the support body and the intermediate support; a tilting hydraulic cylinder mechanism interposed between the intermediate support and the blade body to rotate the intermediate support and the blade body about the first axis with respect to the support body; and between the intermediate support and the blade body. a two-way blade device, comprising: an angle hydraulic cylinder mechanism interposed in the intermediate support for pivoting the blade body about the second axis with respect to the intermediate support; 2. The support body has a support plate connected to the front end of the earthmoving vehicle and a front plate disposed at the front end of the support plate, and the intermediate support has a horizontal plate and a substantially perpendicular support from the horizontal plate. the blade body has an upper plate; the front plate of the support body and the vertical plate of the intermediate support pivot via a first pin extending in a longitudinal direction; The two-way device according to claim 1, wherein the horizontal plate of the intermediate support and the upper plate of the plate body are pivotally connected via a second pin extending in the vertical direction. blade device. 3. A patent in which a pair of receiving parts are defined on the rear surface of the vertical plate of the intermediate support body, and both ends of the front plate of the support body are slidably received in the pair of first receiving parts. A two-way blade device according to claim 2. 4. A pair of second receiving parts are defined on the upper surface of the blade body, and both ends of the horizontal plate of the intermediate support are slidably received in the pair of second receiving parts. The two-way blade device according to item 2 or 3.