JPS5910210Y2 - Bucket device with lid for shovel loader - Google Patents

Description

[Detailed description of the invention] The invention provides a lid on the opening of the packet whose rotation center is at the tip of the lift arm of the shovel loader, which opens and closes the opening according to the upward and downward movements of the packet. This invention relates to a packet device with a lid that can prevent cargo from falling when a vehicle is running.

Shovel loader packets usually do not have lids.
During transportation, cargo may fall out of the bucket due to vehicle vibrations, especially soft chicken manure or chippings.
The amount of cargo was reduced and aisles were contaminated.

Furthermore, as an example of a special packet, there are lidded packet devices that are equipped with a grapple mechanism on the packet, but this uses cylinder force from hydraulic pressure to open and close the lid, so it is a cylinder operation that lifts the packet upward. This requires two operations, one for opening and closing the lid, and the other for operating the cylinder, and the timing of these operations must also be synchronized, which not only makes the operation by the driver cumbersome, but also makes the mechanism itself expensive.

This invention was made to eliminate the above-mentioned drawbacks.
The present invention will be described in detail below with reference to drawings which are examples.

A lower back surface of the packet 1 is pivotally attached 7 to the tips of a pair of left and right lift arms 5 whose base ends are pivotally supported by a vehicle body 10 and rotated by a lift cylinder 12.

Reference numeral 11 denotes a dump cylinder, the base end of which is connected to the lift arm 5, and the piston rod extending from the cylinder 11 connected to the upper rear surface of the packet 1, which controls the upward and downward movements of the packet 1.

Reference numeral 4 denotes a lid portion 2 which is an integral part of the cover and is made of a steel plate or the like having approximately the same shape as the opening of the packet 1 in order to close the opening.
, with a groove 3 along the longitudinal direction in the center, emphasizing the long rod shape.
A is comprised of a lever arm portion 3 having a deformed shape, and both members 2 and 3 are integrated by joining the rear end of the lid portion 2 and the tip of the lever arm portion 3. .

The integrated cover 4 configured in this manner is rotatably held by the bent portion of the integrated cover 4 being pivotally connected via a pin 8 to a bracket 1A protruding from the upper end of the back surface of the packet 1. .

Reference numeral 9 in the figure denotes a bracket fixed to the middle portion of the lift arm 5, and a pin 6 protruding from the top end of the bracket is slidably and loosely fitted into a groove 3A formed in the lever arm portion 3 of the cover unit 4. By means of said lever arm part 3
The other end is held to avoid interference with the lift arm 5,
It can slide regardless of the rotation of the lift arm 5.

The lever arm portion 3 is arranged so that when the packet 1 is placed in its maximum supine position with respect to the lid portion 2, the lid portion 2
It is shaped with an inclination angle α that can close the opening.

Furthermore, the lid portion 2 does not necessarily have to be made of a single piece of steel plate, etc.; depending on the type of cargo to be handled, only the outer shell and vertical and horizontal frames may be made of steel plate, etc., and wood chips such as chips may be added to it. When handling, the space may be covered with a net, or a transparent plastic material may be used if necessary.

Furthermore, if the lever arm 3 is too long and poses an obstacle to cargo handling operations, it may be replaced with a non-bending telescopic telescope, etc., fixed by the pin 6 and rotatably supported by the pin 8. It is also possible to force it.

The present invention has the above-mentioned structure, and has a dump cylinder 1.
When the packet 1 is turned up and down around the pin 7 by the operation of the cover 1, the distance between the pins 8 and 6 that support the cover unit 1 expands and contracts, and in response to this expansion and contraction, the lever arm portion 3
It slides linearly in the front-rear direction on the pin 6 through the groove 3A, and at the same time, the lid part 2 integrated with the lever arm part 3 rotates to open and close the opening of the packet 1.

The operation of the relationship between the packet 1 and the cover assembly 4 will be described in further detail according to the figures.

A shows the cargo scooping attitude, in which the lift cylinder 12 of the packet 1 and the lift arm 5 in the vehicle running attitude is first activated to lower the lift arm 5 to its lowest position, and then the dump cylinder 11 is slightly extended. When the bottom of the packet 1 is arranged parallel to the ground surface, the cover 4 also tries to rotate in the same direction as the packet 1 due to the downward movement of the packet 1, but the lever arm part 3 is connected to the pin 6 and the groove. 3A, the cover unit 4 slides forward using the pin 8 as a fulcrum while rotating counterclockwise to the rotation direction of the packet 1, that is, in the clockwise direction shown in the figure. do.

Therefore, the lid portion 2 of the cover unit 4 also rotates clockwise about the pin 8, thereby opening the opening of the packet 1.

B shows the running posture of the vehicle after scooping up the cargo. When the dump cylinder 11 is contracted and the packet 1 is turned upside down, the pin 8 approaches the pin 6, and as a result, the lever arm portion 3 slides rearward. At the same time, the lid portion 2 rotates counterclockwise in the opposite direction to the above operation, and the lid portion 2 rotates toward the opening of the packet 1. When the packet 1 is in the most supine state, the lever arm portion Since an inclination angle α that closes the opening of the packet 1 is provided in advance between the lid portion 3 and the lid portion 2, the lid portion 2 also closes the opening of the packet 1, and the rotation of the lift arm is caused by the upward and downward movement of the packet. are not subject to any restrictions and can operate independently of each other.

C shows the attitude state in which the cargo handling part inside the packet 1 is released, and since the packet 1 is lowered further than the above-mentioned scooping attitude state A, the opening angle between the lid part 2 of the cover unit 4 and the opening of the packet 1 is The lid portion 2 does not become an obstacle to releasing cargo.

In this way, the present invention integrates the lid part and the lever arm part at the upper end of the back of the packet, which is pivotally attached to the tip of the lift arm, so that the lid part closes the opening of the packet when the packet is placed in its most supine position. The rear end of the lid part of the integrated cover is rotatably pivoted, and the arm part is not slidably and loosely fitted into the pin 6 fixed to the middle part of the lift arm, so that the lid part can be attached to the packet. The opening and closing of the packet opening can be done automatically because it automatically rotates according to the lifting and raising movements of the packet regardless of its height, and also rotates in the direction that corresponds to the purpose of the work. This eliminates the need for a dedicated hydraulic system to control the opening and closing of the lid, freeing the driver from special opening and closing operations, making loading and unloading work easier, and completely preventing cargo from falling while the vehicle is running. It has various excellent effects such as:

[Brief explanation of drawings]

FIG. 1 is a side view showing the structure and operating state of the present invention, and FIG. 2 is a sectional view taken along line I--I in FIG. 1. 1...Packet, 2...Lid part, 3
... Lever arm part, 4 ... Cover integrated, 5 ... Lift arm.

Claims (1)

[Scope of utility model registration request] In a shovel loader equipped with a packet that can be operated upside down or prone by a dump cylinder also provided on the lift arm at the tip of a lift arm whose base end is pivotally supported on the vehicle body and can freely rotate in the vertical direction, the packet The lower end of the back surface is pivotally attached to the tip of the lift arm, and the bent part integrated with the long rod-shaped cover that opens and closes the packet opening according to the upward and downward movement of the packet is pivotally attached to the upper end of the back surface of the packet, and the lever arm A lidded packet device for a shovel loader, characterized in that a bucket 1-, a lift arm, and a cover are connected together by fitting a pin fixed in the middle of the lift arm into an elongated hole opened in the part so as to be slidable and loose. .