JPS58156639A - Attaching and detaching device for front loader - Google Patents

Abstract

PURPOSE:To obviate the need for other vertical moving machines, e.g., crane, etc., by performing the attaching or detaching operation of a front loader by utilizing a lift cylinder for vertically moving the life arm provided to the front loader and also the motion of its piston. CONSTITUTION:A fitting frame 3 provided with the lift arm 24 of a front loader 27 and a stand 11 bendably provided to a fitting leg 7 attached to the cross part 1 of the fitting frame 3 are provided. The attaching or detaching operation of the loader 27 is made by utilizing a lift cylinder for vertically moving the arm 24 attached to the loader 27 and also the motion of its piston 26a. By this, the loader 27 supported on the land by the stand 11 and the front portion of the loader 27 can be simply attached to a tractor 15 simply by retracting the piston. Also, the loader 27 in attached state can be easily detached from the tractor 15 by projecting the piston 26a.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for attaching and detaching a front loader to a tractor, which is used by being attached to a tractor for loading and unloading soil, fertilizer, etc.

The front loader is attached to the tractor when performing the above work, and is taken off the job once the work is completed.The front loader is equipped with a lift cylinder for raising and lowering the lift arm and its piston. It has been devised so that it can be carried out by using a front loader lift arm, eliminating the need for a separate lifting machine such as a crane. There is a mounting frame in the shape of an image, a stand that can be bent to the mounting leg attached to the horizontal member Km of this mounting frame, and When the tractor approaches the front loader, which is supported by the front guide pin and intermediate guide bin provided respectively, the front part of the front loader, and this stand, the front part is moved as the piston of the lift arm moves backward. The horizontal member is moved upward along the guide pin and the intermediate guide bin to a predetermined mounting position, or the horizontal member of the mounting frame, which is in the mounting position on the front frame of the tractor, is moved upward along the guide pin and the intermediate guide bin. A front guide rail and an intermediate guide rail provided on the mounting foot and the side member, respectively, and an L-shaped base of the mounting frame, in order to move the stand downward along the guide bin and intermediate guide bin to ground the stand, respectively. The locking pin provided in
This is a front loader attachment/detachment device consisting of a locking part provided at the rear of the front loader frame.

Next, to explain its specific structure based on an example shown in the drawings, the side view formed by the horizontal member (1) and the vertical member (2) as shown in FIG. The front parts of the left and right L-shaped mounting frames (3) (3) are connected to each other by connecting rods (4) K, and the seats (5) (5) are attached to this L-shaped base of the mounting frame (3). A locking pin (6) is provided on the protruding seat (5) (5).
), fix the mounting feet (7) to the front of the horizontal member (1), and install the front guide rail (8) consisting of a downward-sloping front rail (8a) and a rear rail (8b). A fulcrum bottle (fixed to the inside surface of the leg (7) to maintain an upright position as shown in the figure)
9) and a stand 01) supported by a locking pin Ql are provided on the mounting leg (7) so as to be bendable as shown in FIG.

In addition, side plates f17Jaa are fixed on the left and right near the middle of the horizontal member (1) in the longitudinal direction, and side plates asasvc are fixed on the intermediate guide rails which are hook-shaped in side view, and the horizontal member (1) K is fixed. The triangular guide a♦ is located near the upper end of the upper rail (13a) of the intermediate guide rail I. or,
As shown in Fig. 4 (a) to (c), the front frame of the tractor α9 (te) has a front guide °bin aηαη.
A stand bracket (II) in the shape of a planar opening that protrudes in the left-right direction is fixed, and an intermediate guide bracket (II) with a pin hole (19a) is installed near the middle of the front frame αe in the front-rear direction.
Brackets (to) (to) that protrude upwards are fixed to the left and right side plates of the front frame ae, respectively, and the rear part of the front frame member is provided with a guide portion 011) and a lock 121b). QDQυ is fixed to its left and right side plates.

Then, the tip (
Attach the bases of the left and right lift arms t24 (to), which are equipped with kerato (to) to the tips, with bins (c) and (c), respectively, to the vertical members (2) (2) (3) of the left and right mounting frames (3) (3). 2) is pivotally attached to the top of.

Then, as shown in Figure 2, attach the stand alQ1) to the mounting foot (
7) Pin (11) H as an extended posture with respect to (7)
Fix this stand (11) Ql) at the mounting frame (26JIX26m) by protruding the piston (26JIX26m) of the lift cylinder @ (to) that raises and lowers the lift arm ■ (to).
3) With the horizontal members (1) (1) in (3) in a forward-leaning position, this front loader (2) is supported on the ground by the kerat (to) and the stand Ql (11), and the tractor a. If you approach the front of the tractor 0 between the left and right mounting frames (3) (3) by approaching it from the rear of the mounting frames (3) (3), you can see that the left and right side plates α3 (13, 02) 03 are at the front. Intermediate guide bin I standing upright from frame Qe
In addition to slightly fitting the rear locking pin (6) into the α
(6) is the guide part (21a) (2) of the locking part C2D12D.
1a) K (7) will be desired. Therefore, hydraulic hoses (40a) (40b) and
Connect..., operate the control valve lever @υ, and move the piston (
26a) (26a) toward the lift cylinder CM8, the stands (11) (11)
The front loader (5) rotates clockwise in Fig. 2 around the grounding point of the intermediate guide bin (1'J (11 is
Corner guide (14) (14) and upper relay AI<13a x 1
It will ride on the concave part (A) (A) at the boundary with 3a),
Then, the front loader (5) continues to rotate clockwise around the intermediate guide bin (1'JO9) in this state, and the locking pins (6) (6) move to the guide portion (2) of the locking portion QυQυ.
1a) (21a).

Then, the front part of the front loader blade will rise around the locking pins (6) (6), and the left and right front guide bins 1η will move from the rear rail (8b) of the front guide rail (8). When the front guide bin unit moves along the rear rail (8b) that touches the upper part and slopes downward in the front, the front part of the front loader (5) rises and the rear part moves rearward. (The locking pins (6) (6) will move along the guide portions (21a) (21a)), and therefore the intermediate guide yQI (11 will move along the upper rail (131)).
X13a) is guided by the intermediate guide rail (I:1 (I
3, the middle guide bin alH
The bottle holes (19a) (19a) and the bottle hole (12a) of the side plate α203 match, and the locking bottle (6) (
61 will be engaged with the locking holes (21b) (21b).

This intermediate guide rail is the upper rail Q13a)(
13a) has an inclination, and the mounting frame (3)
Since (3) also rotates while being tilted as described above during installation, the intermediate guide pin (11 (19) will surely fit into the intermediate guide rail α3 (13). 1'J (19 bottle holes (19a) (19
a) and the side plate (1) A bottle with a bottle inserted into the bottle hole (12a x 12a) and a plate (to) that is integrated with the bottle protruding from the side plate a2. If it fits into the OI (to) and inserts the pin (to) to prevent K from being removed, both the left and right ends of the left and right intermediate guide pin layers will be attached to the mounting holes.
/-A(3)KI15□t,,1,□,engine. The outer end of the front guide bin Qηαη is fitted with a mounting foot (7) (7), and a bracket (5) (5) (5)( 5) is fitted onto the locking part (2m) K and attached to the mounting frame (3) (31) respectively.
The front loader (5) is fixed to the tractor (19) by restricting the left-right movement of the
(To) (To) It is formed in front of (To).

Therefore, the pistons (26a) (26a) are moved back toward the lift cylinders (c) and (c), and the connector is attached to the bottom of the vertical member (2) of one of the mounting frames (3) as shown in Fig. 3 (b). Bin (to) the vertical frame (to) of frame Gυ
During installation of the front loader (B), remove the horizontal frame (B) of this connector frame Gυ from above the vertical members (2) (2) and attach it as shown in step 5 above.
Once the front router (A) has been installed, rotate the connector frame (to) clockwise and attach the hook (34a) of the horizontal frame (to) to the locking pin (to) on the top of the other vertical member (2).
(To) is locked.

Attach the hook (to) on the top of the vertical frame (to) to one vertical member (
If you engage the locking pin @ on the top of 2) and engage the hook (3Sa) of the lock lever (to) with the locking pin (b),
The upper parts of the left and right vertical members (2>(2)) are connected by this connector frame c31 to form a framework shape. Also, remove the bottle Ql (II) and put it on the stand (11) (1
Just fold 1) and replace this bottle Ql) DI as shown in Figure 1. In addition, the 7 installed on the tractor α9
o To remove the loader slope, just follow the installation procedure described above in roughly the reverse order. With the packet (c) on the ground, insert the piston (26a) (26a) into the cylinder @ (a).
Therefore, if the front wheel of tractor α9 is slightly raised, the intermediate guide rail I
The intermediate guide pin 0 is supported by the lower rail 013b)K, and the pins inserted into the bins 112a) and (19a) play, so this bin @(2) is pulled out.

Then, remove the hook (34a) of the connector frame ■ from the locking pin (to) and remove the connector frame ■ as shown in Figure 3 (b). Next, set up the stand αυa0 and install the pistons (26a) (26a). Lift cylinder (c) (
C), the front part of the 70 loader (5) moves downward and the front rail (8a) of the front guide rail (8) follows the front guide bin (17)K, so the front loader (5)
) starts moving forward.

Then, the upper rail (13
a))-1 intermediate force 4)'bin as(lsK along,
The locking pin (606) is disengaged from the locking hole (21b x 21b) and the front lobe is moved forward together with the Sanmura frame (3) while following the guide portion (21a) (21). , the concave part (A) (A) is in the middle θ Guide pin fin QIK is placed on the guide pin QIK, and after this, the front part of the front loader fin moves down around the intermediate guide pin (1! JQ! 1) and the stand (In )Ql) is grounded. Then, using the grounding point of the stand QO (1m) as a fulcrum, the rear part of the attached frame +31 (3) moves upward, so the recesses (A) and (A) extend upward from the intermediate guide pin θ scratch OI. .

Therefore, the hydraulic hoses (27a) (27b)... were removed from the control valve (to) and the tractor Q! If we move back 19,
When the front loader (5) is completely removed, it becomes K.

Since the front loader attachment/detachment device according to the present invention is constructed as described above, the front loader (2), which is supported on the ground by the stand (1 m) Ql) and the front part of the front loader (A) and K, is completely It can be easily attached to the trough J (Lj) by simply retracting the lift pistons (26a) (26a) of the 7 cylinder @ (to), and it can be easily attached to the front trough J (Lj) in the attached state. teeth,
Piston (26a) (2) of lift cylinder (1) (to)
6a) can be easily removed from the tractor (Is) and can be easily attached and detached from the tractor without the need for a separate lifting machine such as a crane. It is possible. And,
As shown in the illustrated example, the mounting foot (7H7) is positioned in front of the front wheel @ (to), and the intermediate guide pin 鈲α is located at a higher position than the front frame ae, so the front wheel There is no danger of the front wheel @ (to) colliding with the mounting feet (7) (7) or the intermediate guide bin asas, etc., even when the @ (to) is turned fully left or right. In addition, since the mounting feet (7) (7) are located near the front of the front frame αIae, the operator in the driver's seat should have a good view of the front and check that the mounting feet are near the treads of the front wheels OII. (7) (7) It is not hindered by K.

! 84, the simple explanatory drawings of the drawings show one embodiment of the present invention, and FIG. 1 is a side view showing the state after installation, FIG. 2 is a side view showing the state before installation, and FIG. 3 ( A) is a side view of the mounting frame, FIG. 4(B) is a view taken from arrow B in FIG. A view in the direction of arrow C in FIG.

Code explanation 0)...Horizontal member (2)...Vertical member (3
)...Mounting frame (4)...Connecting rod (5)
... Seat (6) ... Locking bottle (7)
...Mounting foot (8)...Guide rail (
8a)...Front rail (8b)...Rear rail (9)...Fully point bin a Cap...Locking bin 0υ
...Stand ti4...Side plate (12a
) (19a)...Bin hole I...Intermediate guide rail (13a)...Upper rail (13b)...
・Lower rail 04...triangular guide a9...
Tractor (1e...front frame aη...
Front guide bin OI...stand bracket (1'
J...Intermediate guide bin (company)...Bracket
Qυ...Locking part (21a)...Guide part (
21b)...Latching hole-...Dump cylinder (To)...Packet Q4...Lift arm @(2
1I (to) (to)...Bin (to)...Lift cylinder (26a)...Piston@...Front router (2)...Plate al...Connector frame al... Vertical frame (2)...Horizontal frame @(b)...Locking bin (3!a)c@(3
8a)...Hook (to)...Lock lever (
To)...Front wheel (4QaXa)...
・Hydraulic hose profit...Control valve lever (1)・
...Concave part inside the control valve Patent applicant Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] The front loader's lift arm is attached to a mounting frame in the shape of a Confucian character, a stand attached to the side member of this mounting frame that can be bent to the mounting leg, and the side of the front frame of the tractor. The tractor is brought close to a front loader that is supported by a front guide pin and an intermediate guide pin provided at the front part and the middle part of the side, the front part of the front loader, and the stand,
As the piston of the lift arm moves upward, the horizontal member is moved up to a predetermined mounting position along the front guide pin and the intermediate guide pin, or the horizontal member of the mounting frame is moved to the side of the mounting frame in the front frame Km position of the tractor. In order to move the member downward along the front guide bin and the intermediate guide bin to ground the stand in accordance with the central movement of the piston, front parts are provided on the mounting foot and the side member, respectively. A guide rail and an intermediate guide rail, a retaining pin provided at the L-shaped base of the mounting frame, and a locking pin provided at the rear of the front frame to lock the mounting frame in the front frame KN attaching position to this engaging pin. A front radar attachment/detachment device consisting of a stop part.