JPH0144843B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a fork-like rake member or shovel, means for moving the shovel in a substantially vertical direction, and rocking means for rotating the shovel about a horizontal axis. The present invention relates to a device for scooping up components placed on the surface of a paved road, for example, and comprising means for attaching it to a vehicle such as a tractor.

Such known devices are employed for scooping up road stones for paving. Once the road stones have been scooped up, the equipment is driven to a dump where the shovel is emptied. Once the road stones have been cleaned and, if necessary, filled, they can be used again for paving.

There are various methods for removing dirt from road stones. One method is to manually dump the road stones collected in a dump and transfer them to a vibrating or desilting device. In this vibrating or de-slushing device, the road stones are de-smeared. Dumping road stones from a dump and transferring them to a vibrator or mud remover is a laborious and tedious task.
Another method for removing soil or sand stuck to road stones is to temporarily activate the control member of the device to remove the soil or sand by vibration and rocking. However, this method is detrimental to the bearings and seals of hydraulically actuated components.

The object of the invention is to provide a device that is capable of cleaning road stones in a single run after stripping the pavement.

a flap movable between a position in which the scoop member is closed and a position in which the scoop member can be received; and control means for moving the flap;
The control means is communicated with the hydraulic source through a passage in the rotation axis of the scoop member such that the flap is held in a position that closes the scoop member during rotational operation of the scoop member and the flap in one rotational direction by the rotation means. This is achieved by providing a hydraulic mechanism for preventing movement of the rake member in a direction opposite to the direction of rotation.

As a result, road stones removed from a certain area of pavement are cleaned by rotating the scooping member together with the flap after the flap is closed. The road stones are rolled onto each other to remove mud from each other, and the dropped soil is deposited at the site where the equipment is used. The cleaned road stones can then be stored in a temporary dump by opening the flap and rotating the scooping member.

Preferably, the fork-shaped scoop member has a substantially semi-cylindrical shape, and the flap is preferably its complement, ie forms a cylindrical shape with the scoop member. The flap is pivotable about an axis provided in the cylindrical wall of the scoop member by means of an actuating plunger located between the flap and the scoop member.

A snap lock is provided to ensure that the flap and scoop member are locked during rotation. The inside of the flap and scoop members may be lined with a sieving material, the mesh size of which is chosen arbitrarily.

Care must be taken to establish a connection between the hydraulic control ram, which rotates with the flap and rake members, and a stationary hydraulic source. For this purpose, the hydraulic power source communicates via a duct with a passage in the hub of the rotary shaft that opens in the annular groove in the rotary shaft of the rake member, and also communicates with the passage in the hub of the rotary shaft that opens in the annular groove in the rotary shaft of the rake member. It communicates with the duct of the plunger via a passage in the shaft.

The present invention will now be described with reference to the accompanying drawings, in which preferred embodiments are shown.

A fixed plate 7 is arranged to be pivotable by means of mounting beams 2 and 3 via arms 5 and 6 relative to a vehicle, such as a tractor 1 for example. The fixed plate 7 is connected to the plunger 37 so as to be pivotable about an axis 8. A fork-shaped scoop member 9 is attached to the fixed plate 7. This scoop member has a substantially semi-cylindrical shape and carries at one end a pivot shaft 10 for a flap 11. The shape of the flap 11 is complementary to or similar to the scoop member 9 and has a semi-cylindrical shape, forming a cylindrical shape together with the scoop member. The flap is adapted to be able to be swung by a plunger 12. The flap is swingable between an open position (FIG. 1) and a closed position (FIG. 3). In the closed state, the scoop member 9 and the flap 11 are engaged by the snap latch 36.
is fixed in that position. The snap latch 36 is movable between two spring-loaded locking members 13 and 14 arranged side by side. At the scooping position (FIG. 1), the paved road stones to be removed exert a rotational action on the scooping member 9. In order to prevent this rotational action from rotating the rake member 9 in the direction of arrow 16 (FIG. 2), a stop member 17 is provided on the fixed plate 19 in which the rake member 9 is substantially rotated. A beam 18 with a channel-shaped cross section is blocked.

The plunger 12 is connected to a hydraulic power source provided on the tractor 1 by the structure shown in FIG. A stationary hub 20 is connected to ducts 21 and 22 for communication with a source of hydraulic pressure. Rotating shaft 2 of scoop member 9 and flap 11
3 is rotatably supported by a bearing 24 of the hub. The rotating shaft 23 has two annular grooves 25 and 26 communicating with the ducts 21 and 22 and with longitudinal passages 27 and 28 in the rotating shaft. Ducts 29 and 30 communicate with the passages 27 and 28 and conduct the hydraulic medium to the plunger 12. This structure allows the plunger 12, which rotates simultaneously with the scoop member, to be connected to a hydraulic power source. A hydraulic motor 31 is provided to rotate the scoop member 9 and the flap 11, and drives a rotating shaft 23 via a gearbox 32.

The device of the invention operates as follows.

The position where the scoop member 9 of the device is open (first
(see figure), the road stones are removed from the ground by the tractor moving forward in the direction indicated by the arrow. After a certain amount of road stones has been scooped up, the flap 11 is moved into the closed position and the cylindrical unit thus formed is lifted almost vertically upwards by actuating the plunger 37 and the third It is rotated in the direction shown by the arrow in the figure. During this rotation, the road stones move and rub against each other, thereby removing dirt. The sand falls to the ground through the mesh, and the cleaned road stones may be transported to a temporary collection site or used directly on site. By selecting the sieves installed inside the flap and scoop elements, it is possible to sort, for example to obtain gravel for use in concrete or for use in tennis courts, or to obtain slag for use in road markings. Able to perform work.

[Brief explanation of drawings]

1 is a perspective view of the apparatus implementing the invention; FIG. 2 is a detailed view of the stop means for preventing movement of the rake member in a direction opposite to the direction of rotation; FIG. The figure is a perspective view of the apparatus implementing the present invention, particularly during a dirt removal operation; FIG. 4 is a perspective view of the apparatus of FIG. 1 viewed from the opposite side; The figure is from Figure 1.
and FIG. 6 is a cross-sectional view taken along the - line of FIG. 5. 1...Tractor, 2, 3...Mounting beam,
5, 6...Arm, 7...Fixing plate, 8...Shaft, 9...Rake member, 10...Pivotal shaft, 11...Flap, 12...
Plunger, 13, 14... Locking member, 16... Arrow, 17... Stopping member, 18... Beam, 19... Fixed plate, 20... Hub, 21, 22... Duct, 23... Rotating shaft, 24... Bearing, 25, 26 ...Annular groove, 27,
28... Passage, 29, 30... Duct, 31... Hydraulic motor, 32... Gearbox, 36... Snap
Latsuchi, 37...Plungeya.

Claims (1)

Claims: 1. a fork-like scoop member and means for moving said scoop member in a substantially vertical direction;
A device for scooping up, for example, a paved road component, comprising means for rotating said scooping member about a horizontal axis and means for mounting on a vehicle, such as a tractor, said scooping member being in a closed position. and a flap movable between a position where the scoop member can be received;
control means for moving the flap; and control means for controlling the scoop member such that the flap is held in a position in which the scoop member is closed during rotational operation of the scoop member and the flap in one rotational direction by the rotating means. A hydraulic mechanism that communicates the control means with a hydraulic source via a passage in the rotating shaft, and further comprising a stopping means for preventing movement of the scoop member in a direction opposite to the direction of rotation. A device that does this. 2. The fork-like scoop member has a substantially semi-cylindrical shape, and the flap has a shape that together with the scoop member forms a cylindrical shape. The device described. 3. Device according to claim 1 or 2, characterized in that the flap is pivotable about an axis arranged on the cylindrical wall of the scoop member. 4. The device according to any one of claims 1 to 3, wherein the control means is an operating plunger provided between the flap and the scoop member. 5. The scoop member and the flap are locked in place by a snap lock in the closed position.
The apparatus according to any one of items 1 to 4. 6. The device according to any one of claims 1 to 5, characterized in that a sieve is attached to the inside of the flap and the scoop member. 7. The hydraulic pressure source communicates via a duct with a passage in the hub of the rotating shaft that is open to the annular groove of the rotating shaft of the rake member, and the plunger communicates with the groove in the rotating shaft that communicates with the groove in the rotating shaft. 5. The device according to claim 4, wherein the device is connected via a passage in the rotating shaft and a duct.