JPH0336593Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reinforced frame structure for a bucket support boom in a self-loading carrier.

Conventionally, left and right support booms are pivotably supported on the left and right side walls of a loading platform so that they can move up and down, and buckets are interposed between the tips of the left and right support booms so that they can be raised and lowered, and the buckets are connected to the left and right support booms. There was a self-loading carrier in which a link lever for interlocking the bucket was interposed between the tip of the hydraulic cylinder for operation and the inside of the left and right support booms, so that the link lever could be raised or lowered. In order to avoid interference with the lever, the reinforcing frame to be suspended horizontally between the buckets must be placed apart from the bucket, and therefore the left and right support booms can be sufficiently reinforced, and The reinforcing frame had to be provided in such a way as to avoid interference with the loading platform, making the design difficult.

In the present invention, the reinforcing frame is formed into a triangular cross section, and the inclined surface of the reinforcing frame is made to face the rear surface of the link lever and the bucket, so that the up-and-down operation of the link lever does not interfere with the reinforcing frame. In addition, by configuring the reinforcing frame so that it can be placed as close to the bucket as possible, the support boom can be effectively reinforced, and interference between the reinforcing frame and the loading platform can be avoided, making the design easier. It is an object of the present invention to provide a reinforced frame structure for a bucket support boom in a self-loading carrier.

The embodiment of the present invention will be explained in detail based on the drawings.
A indicates a self-loading carrier, and the carrier A has a prime mover casing 2 on the rear left side of the upper part of the fuselage frame 1, a driver's seat 3 on the rear right side,
A loading platform 4 that can be dumped freely is provided at the front, a crawler-type running section 5 is installed at the bottom of the fuselage frame 1, and a bucket work section 6 is installed at the front of the loading platform 4. The section 6 loads earth and sand onto the loading platform 4, and the traveling section 5 is driven to carry out the transportation work.

The bucket work section 6 pivots the base ends of the left and right support booms 9 to the left and right side walls 7 of the loading platform 4 via pivot plates 8, respectively, and rotates the left and right support booms 9 around the pivot supports 10. In addition to being movable up and down, both ends of the bucket 11 are pivoted between the tips of the left and right support booms 9.
2, the bucket 11 can be raised and lowered around the same pivot support 12.

The lifting and lowering operations of the left and right support booms 9 are carried out by hydraulic cylinders 1 for boom operation, which are disposed substantially parallel to the upper side of the support booms 9 from the outside of the left and right side walls 7 of the loading platform 4.
3 is transmitted through the boom operation link 14, and the raising and lowering operation of the bucket 11 is transmitted to the bucket operation hydraulic cylinders 15 disposed above the left and right support booms 9 via the bucket operation link. Among these, the bucket actuating link 16 is connected to the bucket interlocking link lever 17 interposed between the tip of the bucket actuating hydraulic cylinder 15 and the bucket 11, as well as the tip of the hydraulic cylinder 15 and the right and left sides. and an inner and outer cylinder support link lever 18 interposed between the support boom 9 and the rear position of the bucket 11 on the inside and outside of the support boom 9.
1 is constructed so that it can be operated in conjunction with up-and-down movement.

In addition, a reinforcing frame 19 is installed horizontally between the middle parts of the left and right support booms 9.
is hollow and has a right triangular cross section, the bottom side 20 of which is parallel to the longitudinal direction of the support boom 9,
Further, the rear side surface 21 is formed at right angles to the bottom side surface 20, and the upper side surface is formed as a sloped surface 22 that slopes downward toward the front.

This reinforcing frame 19 has an inclined surface 22 connected to the inner cylinder support link lever 18 and bucket belt 1.
By facing the rear surface of 1, the inclined surface 22
The reinforcing frame 19 is disposed between the left and right support booms 9 at a position as close as possible to each bucket so as not to interfere with the up-and-down operation of the inner cylinder support link lever 18, thereby effectively reinforcing the left and right support booms 9. In addition, this arrangement prevents the reinforcing frame 19 from interfering with the loading platform 4.

In the figure, 23 and 24 are pivots, 25 is a pivot support plate, 26 is a bucket side cover, and 27 is a protective cover for the hydraulic cylinder 15.

According to the present invention, the bucket actuating hydraulic cylinders are connected in parallel to the upper positions of the left and right support booms, the reinforcement frame of the support boom is formed into a triangular cross section, and the inclined surface of the reinforcement frame is By facing the link lever and the rear surface of the bucket, the hydraulic cylinder for operating the bucket does not protrude to the side, and while it is easy to install, the up-and-down operation of the link lever does not interfere with the reinforcing frame. Since the reinforcing frame can be placed as close as possible to the bucket cart, the support boom can be effectively reinforced, and the reinforcing frame can be easily connected to the bucket cart and the loading platform. This has the effect that interference can be easily avoided and design is easy.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of an embodiment of the present invention, FIG. 2 is a front side view of the same example, and FIG. 3 is a front plan view of the same example.
FIG. 4 is a perspective view of essential parts of the same example. A: Self-loading carrier, 4: Loading platform, 7: Side wall,
9: Support boom, 10: Pivot, 11: Bucket,
15: Hydraulic cylinder, 18: Link lever, 1
9: Reinforced frame, 22: Slanted surface.

Claims (1)

[Scope of utility model registration request] Left and right support booms 9 are pivotally supported on the left and right side walls 7 of the loading platform 4 so as to be able to move up and down, and a bucket 11 is interposed between the tips of the left and right support booms 9 so as to be able to rise and fall freely. A self-loading carrier in which a link lever 18 for interlocking a bucket 11 is provided between the tip of a bucket operating hydraulic cylinder 15 that is connected in a substantially parallel manner and the inside of the left and right support booms 9 so that the link lever 18 can be raised or lowered. , the left and right support booms 9
A reinforcing frame 19 to be hung horizontally between them is formed to have a substantially triangular cross section, and the inclined surface 22 of the frame 19 is made to face the rear surface of the link lever 18 and the bucket 11. A reinforcing frame structure for a bucket support boom in a self-loading carrier, which is configured to prevent interference with the up-and-down operation of the bucket truck and to allow the reinforcing frame 19 to be placed as close as possible to the bucket truck 11.