JPS5913615B2 - Front loader work tool scoop mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention connects the piston loft of a cylinder attached to the tips of lift arms on both sides and the tip of the lift arm by a hit body, and the hit body has a receiving piece consisting of a receiving part and a fitting part. The work equipment can be attached and detached by operating the front loader and inserting and removing the locking pin, and the operation can be done simply and quickly without requiring any effort.
This invention relates to a work implement scooping and mounting device for a front loader, characterized in that when the work implement is not attached, the pitch body serves as a holder for the cylinder to prevent damage to the cylinder.

To explain the structure of one embodiment of the present invention shown in the drawings, reference numeral 1 denotes both side lift arms of a front loader for a tractor. A hydraulic cylinder mechanism whose end is pivotally connected to the alloy of the tractor and connected to the middle part (this allows the hydraulic cylinder mechanism to move up and down using the pivoted part as a fulcrum.

3 is a receiver fixed on the middle part of the lift arm 1.

a indicates the scooping pitch of the working tool, 4 is the main body of the hitch a, the base of which is pivoted to the tip of the lift arm 1 with a pin 5, and the base end is pivoted to the support 3 with a pin 6 at the tip. The piston rod 8 of the double-acting hydraulic cylinder γ is connected by a pin 9, and the base and tip of the hydraulic cylinder 7 are connected to the tractor's pressure oil generator ( For this communication, a pin hole 12 is drilled in the middle part of the hitch body 4, and the upper end of the hitch body 4 on both sides is connected to the horizontal rod 1.
Connect by 3.

Reference numeral 14 denotes a receiving piece installed at the middle front part of the inner surface of the hitch body 4, which consists of a receiving part A in the front and back force direction at the front and a V-shaped fitting part opening at the rear, and the front end Q of the front sword receiving part A. This is provided with a stopper 15 facing diagonally toward the front upper blade, and both pieces of the rear fitting part opening are arranged below the pin hole 12 and at an equal distance therefrom.

Reference numeral 16 denotes an upwardly open type hook installed at the lower front edge of the hitch body 4.

Reference numeral 11 designates a working device for soil and sand packets, and a mounting bin 18 is provided in the middle portion of both outer surfaces of the working device 11, and a mounting pipe 19 having a through hole extending over the working device 17 is provided protruding from the upper end thereof.

20 is a locking pin, and 21 is a locking pin.

Next, its effect will be explained.

When attaching the work implement 17 to the hitch a, place the work implement 17 as shown in FIG.
is positioned below the attachment pipe 19 of the work implement 17 to move the tractor forward, and the front receiving portion A of the receiving piece 14 is positioned to face below the attachment pipe 19 to stop the tractor.

Therefore, when the lift arm 1 is raised, as shown in FIG. Because it is located in front of the mounting pipe 19,
The work implement 17 is lifted by its weight while rotating counterclockwise around the center of the mounting pipe 19, and its mounting pin 18
After the hitch a hits the front edge of the hitch body 4, the working implement 17 is lifted together with the hitch a and separated from the ground.

Therefore, if the switching valve of the pressure oil generator of the tractor is operated to supply pressure oil from the hose 11 into the tip of the cylinder 7, the piston holder 8 will move back from the hydraulic vessel.
As shown in the figure, the hitch a with the work implement 17 rotates clockwise around the bin 5 and tilts backwards, so when the inclination becomes steep enough, the work implement 17 is attached to the mounting pipe 19 due to its weight. The receiving piece 14 moves rearward along the receiving part A and slides into the fitting opening and engages, and the hole matches the bottle hole 12 of the hitch main body 4, and the mounting pin 18 is attached to the front edge of the hitch main body 4. , and is engaged within the hook 16 and latched thereto.

Therefore, after that, as shown in FIG. 4, by inserting the locking pin 20 into the mounting pipe 19 and the bottle hole 12 of the hitch body 4 to prevent the locking pin 2N from being removed, the working implement 1γ can be installed.

When removing the work implement 17 from the hitch a, remove the locking pin 21 and the stop pin 20, then lower the lift arm 1 and place the work implement 17 on it, and then remove the work implement 17 from the hitch a.
is further lowered to separate the receiving piece 14 and the hook 16 from the mounting pipe 19 and the mounting pin 18, respectively,
Then, when the tractor is moved backward, the working implement 17 is separated.

Further, when attaching a work implement such as a Hayhawk or a manual hawk, the same procedure can be performed.

Since the present invention has the working equipment scooping and mounting device for the front loader configured as described above, the working equipment mounting pipe is automatically scooped up by the receiving part of the pitch receiving piece by the operation of the front loader, and is engaged with the fitting part. Then, by inserting the stopper into the holes, the implement is installed, and - the force,
When the stop bin is removed and the work equipment is placed on the machine, the work equipment separates, and the work equipment can be attached to and removed from the hitch by operating the front loader and inserting and removing the stop bin, eliminating the need to manually operate the heavy work equipment. It is easy to handle and can easily and quickly attach and detach any working device, significantly saving labor and time (this is also useful in practice as it allows you to attach and detach the working device anywhere).

Furthermore, the receiving piece on the upper end of the hitch is connected to the receiving part in the front and the V in the rear.
Because it is a shaped fitting part, at the same time the mounting pin of the middle part of the working tool enters into the hook at the bottom of the pitch, the mounting pipe of the upper end of the working tool fits into the V-shaped rear part from above the receiving part in front of the receiving piece. The hole in the mounting pipe is properly aligned with the pin hole in the pitch body, and since the position is upward, it is easy to insert and remove the retaining pin from the pin hole in the mounting pipe and the pitch body. It can be done easily.

In particular, since the working equipment is a part that is directly subjected to large external forces during work, it is easily deformed such as twisting. Because it is inserted into the bottle hole of the main body, the position of the retaining part and the bottle hole is close, so it is not easily affected by the deformation of the working tool, and it is convenient to use because it always allows smooth insertion and removal of the bottle. Since the retaining pin is located at the top, there is no risk that the retaining pin will hit the lifted object such as dirt and the puller will fall.
In addition, since the distance between the mounting pin and the stop pin is long, the work implement can be securely attached to the hitch.

Moreover, since the cylinder is always attached to the lift arm and the hitch body acts as a link between the piston rod of the cylinder and the lift arm, the pitch is The main body acts as a holder for the cylinder and protects the cylinder, so even if the cylinder rattles while driving, or the piston loft of the cylinder moves forward by accidentally operating the hydraulic system after removing the work equipment, the main body acts as a holder for the cylinder and protects the cylinder. It will not damage the cylinder.

Moreover, it has a simple structure, can be manufactured easily and inexpensively, operates light and smoothly, and is fixed securely, firmly, and safely.

[Brief explanation of the drawing]

FIG. 1 is a side view of the main part of a front loader showing a scooping pitch and a working device separated, showing one embodiment of the present invention;
Fig. 2 is a plan view of the same as above, Fig. 3 is an exploded slope view, Fig. 4 is a side sectional view of the working device attached to the scooping pitch, and Figs. 5 and 6 are side sectional views of the same as above to explain the operation. Figure 5 shows the state where the work equipment is scooped up and lifted at the scooping pitch.
FIG. 6 shows a state in which the scooping pitch is tilted backwards and the work implement is latched onto it. 1...lift arm, 3...receiver, 4
...Hitchi body, 7...Cylinder, 8
... Piston rod, 12 ... Pin hole,
14...Receiving piece, A...Receiving part, opening
...Fitting part, 16...Hook, 17.
...Working equipment, 18...Mounting bin, 19.
...Mounting pipe.

Claims (1)

[Claims] 1 The upper and lower parts of the pitch body are respectively pivotally connected to the piston rod of the cylinder whose base ends are pivotally connected to the supports at the intermediate parts of the lift arms on both sides, and to the tips of the lift arms, and A receiving piece consisting of a receiving part and a V-shaped fitting part at the rear is provided, and a hook that opens upward is installed at the bottom, and the mounting pipe at the upper end of the work equipment is placed on the receiving part of the above receiving piece. After bringing the mounting pin in the middle of the mold above the hook, insert the mounting pipe into the V of the receiving piece.
A front loader work implement scooping installation characterized in that a fixing pin is removably inserted into and removed from the mounting pipe and the bottle hole of the hitch body by engaging the mounting pins inside the shape fitting part and the hook respectively. Device.