JPS587036A - Attaching device for front loader - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting device for a front loader, and its purpose is to facilitate attachment and detachment of the front loader to a vehicle such as a tractor. The front loader is removably attached to the vehicle by having mounting members provided at the base, and these two mounting members are provided on both sides of the vehicle and housed in support members. Incidentally, in order to lower the center of gravity of the front loader, the mounting member is mounted at a low position on the vehicle side. Next, when attaching or detaching the 70 loader from a vehicle, it is necessary to lift the attachment member to avoid interference between the attachment member and the front wheel. Therefore, conventionally, when attaching and detaching, a pair of jacks are provided on both the toe arms or on both the lever members.
However, there is a problem in that it takes time and effort to operate the jack, and it is necessary to prepare two jacks, which is troublesome.

Kibatsu F! No. 4 solves the above problem, and its characteristics are that a pair of left and right lift arm bases N5VC of a front loader having a packet cylinder are each provided with a mounting member, and these two mounting members are connected by a connecting rod. At the same time, both mounting members are removably attached to the packet on both sides of the vehicle to prevent the packet from rotating with respect to the ground, and the mounting member is in a retracted position! The lift arm is placed on the packet side pivot shaft so that it can be repositioned between the upper and upper removal positions, and +11t! ) Rakuta car body, engine (2)
The engine (2), which is made up of a transmission case (3), etc., is equipped with a front wheel bearing stand (4) projecting forward.
It is covered by more than VC. There are 77 on fi+, (7
) is the front wheel.

t8) H70 loader, front end is connecting member 19) K
A pair of left lift arms (10) connected together, nine mounting members U21 each pivotally connected to the base of the seven tor arms via the mounting member side pivot shaft fill, and one to each of the seven tors. +
A pair of left and right glue cylinders Q3 connects the middle part of 101 and each mounting member Q21, and a pair of left and right glue cylinders Q3, which are pivotally connected to the tip end of the bag 11 via a packet-side pivot shaft
ω and 7 arms each (lα middle part and bucket) Q51
A pair of left and right packet cylinders (161 and
Each mounting member (12+) consists of a pair of left and right places a that protrude forward from the inner side and are provided with a connecting tube αη and a crotch joint, and a pair of connecting rods m that connect the two mounting members α2. The 70 loader (8) has a supporting member provided on the main frame (2υ) and a receiving member provided on the storage sign (c).
It is removably attached to the front of the truck via the

The main frames 211 are provided in pairs on the left and right sides, and are fixedly mounted on both sides of the vehicle body. As shown in FIGS. 4 and 5, a pair of front and rear overhanging members are provided outwardly from the front side of each main frame (1) corresponding to the longitudinally central portion of the vehicle body il+, Support portions are constructed on the outer side of these overhanging members 4. The support part corresponds approximately to the front wheel (7) in the longitudinal direction, and consists of a rectangular bottom plate fixed between the front and rear overhanging members, and a pair of left and right side plates that stand up from both sides of the bottom plate iron. It consists of a front plate that is tilted forward and connects the front ends of the plates on both sides, and a rear plate that is vertical and connects the rear ends of the plates on both sides. It is tapered downward in side view.

The attachment member α2 has a rectangular cross section, and its lower end is a fitting portion @l. The fitting get+ consists of a bottom plate (support), a pair of left and right side plates -, a forward-slanted front plate -, and a pair of front and rear rear plates? It is tapered downward when viewed from the side, and is fitted into the support member with a taper that can be freely fitted and removed, but when this fitting is done, both front plates and both The rear plate and the cormorant touch each other. The front plate of the fitting part circle is circumscribed by an arc centered on the packet-side pivot shaft Q4, and can be mounted by rotating the packet-side pivot shaft Q4111!11 of the IJ7 toe arm. As shown in FIG. 4, the member awn has two mounting positions in which the fitting portion 13Il is removably fitted into the support member, that is, a fitting position, and as shown in FIG. 6, the fitting position. It is located above the front wheel (7) and is detachable from the support part so that it can be freely changed to a skin removal position, that is, a detachment position. Incidentally, an insertion hole through which the upper end of the scund member is inserted and removably inserted is formed in both side plates of the fitting part nol in the lateral direction. f41 is a mounting member fixing tool exemplified by a bolt, which is inserted from the rear into the rear plate of the supporting part to mount the mounting member O! By being screwed to the rear plate of l, the mounting member a is removably fixed to the support member.

@As shown in Figure 6, the collection sign 1231 is located at the front vehicle bearing stand (
4゛) Fixtures I411 illustrated with bolts on each side of the front end
It is installed in an upright manner and is removably attached to the board, and the upper end of the board is horizontally installed and has a receiving member (
(to) is fixed in a recessed manner. Receiving member! 241 is the front.
It has a cross-sectional groove shape consisting of the rear plate t4a[41 and the bottom plate, and is tapered downward in side view.

The punch a1 is fixedly attached to the upper inner surface of the mounting member Q21, and is removably housed in the companion bracket area by a fixing part, exemplified by a bolt, and the front ends of both place mouths are connected by a connecting cylinder η. There are n.

Attachment parts a~ are fixedly installed on both sides of the connecting cylinder 0~ along the lower surface. The attachment part a81 has a cross-sectional groove shape consisting of front and rear plates and a bottom plate, and is tapered downward, and is tapered and fitted to the receiving member (end) so as to be freely fitable and detachable. However, at the time of this fitting, both front plates and both rear plates f41f4s are in contact with each other. The front plate i4η of the attachment part O barrel is circumscribed by an arc centered on the packet-side pivot shaft I, and the rotation of the lift arm αl about the packet-side pivot shaft 04111 allows the front plate i4η of the mounting portion O barrel to be The installation part a& is a mounting position fitted into the receiving member (to) as shown in FIG. 6, that is, a fitting position, and a fitting position as shown in FIG. The position can be freely changed to a detached position separated from the example, that is, a detached position. ■ is an L-shaped attachment part,
A collar is fixed in the middle part with a fixture, and the fixture 151
1 is inserted through the connecting tube Q71, the mounting part σ&, and both bottom plates 4H of the receiving member example, and is fixed to the lower surface of the bottom plate and screwed to the nut, thereby forming the mounting part ( lal is detachably fixed to the receiving member example.

The two connecting rods are stacked in two stages, upper and lower, and the two rods are attached to each other (121
It connects the upper part, and therefore both parts Qz
A pair of fixed plates are provided at the upper end, and these fixed plates
A mounting shaft (■) is erected on the board, and the mounting shaft (B) is removably inserted into the through hole (H) of the connecting rod @l end. is a front loader (8)
When attaching to and detaching from the tractor, see Figure 7 and i! As shown in Fig. 8, it is provided on both sides of the packet 06) and functions as a regulating member to prevent the rotation of the packet aω.For this purpose, a fixing plate is fixed on the top plate of the packet rJfil on both sides. The connecting rod (2) is in contact with the side plate group of the packet, and the mounting part fixing tool 15υ is attached to the connecting rod c.
20) By inserting the side plate β1 and screwing it to the fixed plate, the connecting rod □□□ is removably fixed to the bucket)Q. In addition, a pair of front and rear stoppers 161) M are fixed on the side plate of the packet a, and these are stoppers 1B+1.
By abutting part a of the connecting rod vertically, the connecting rod (
4) The relative rotation of the packet (I51 in the counterclockwise direction in Figure 7) is prevented.In addition, as described above, the bucket) (connecting rod 201 collected in one phrase)
extends rearward n, and the extending end touches the ground on the outer side of the front wheel (7), and a grounding plate (61) is fixed to the extending end.

In addition, N is a hydraulic control valve device for each cylinder f13α0, which is provided on the − side mounting member f121, and the device f
yIIr is connected to each cylinder H (161) by a hydraulic hose, etc. II4 is the above device IP, @
The operation of Reno (-).

According to the embodiment configured as described above, when removing the front loader (8) from the tractor, first remove the attachment part fixing device 15D and connect the attachment part fixing member and the receiving member. Unpin. Next, remove both connecting rods from the mounting shaft and @
As shown in Figure 7, etc., the side plate of Noike Soto αω is placed on the outer surface side of No. do. Furthermore, remove between the mounting member fixing tools,
Release the fixation of the mounting member α2 to the support member (2z). At this point, operate 7(, - (to) to retract the packet cylinder [16+) and move the toor arm t101 around the packet side pivot shaft α41. Rotate it upward to move the mounting member Q21 to the detached position above the front wheel (7) 9 as shown in Figure @6, and also move the mounting part tI8I to the disengaged position above the receiving member. However, in the Ten Example, when the packet cylinder U reaches its reduction limit,
The mounting member lI21 and the mounting portion U81 are configured to move to a predetermined detached position, and as a result, the mounting member U21
The mounting portion (181) can be easily positioned at a predetermined removal position, and the hydraulic hose connecting the hydraulic control valve device FT641 and the hydraulic system of the tractor can be protected. After doing the above, the horizontally tapered upper ends of the stand members are inserted into the insertion holes (39) of each fitting portion (1), and the stand members are erected on the ground. In this case, the front wheel (
7) More outwardly. Next, each cylinder uai (1
When the hydraulic pressure in 61 is released by the operation lever ((to)) and the rear side of the front loader flii is supported between the stand members, it is separated from the truck side at the symbiotic part.

After this, if you move the tractor in reverse, the front wheels (
The force moves backward without interfering with the storage member 121, the stand member (goods), etc., and the removal work of the front loader (8) from the tractor is completed at this point f'LK.

In addition, in the above removal work, the connecting rod (4) is used as a member to restrict the rotation of the packet 051, and the connecting rod (4) is fixed to the bucket (Q51) using the attachment part fixing device fitl. Therefore, there is no risk of forgetting to store or remove the connecting rod or forget to release the fixation from the attachment part end receiving member (toward) during the storage and removal work.

Next, when attaching the front loader (8) to the tractor, just reverse the above procedure. First, as shown in Figure 183, the rear part is supported by the stand member. 70 Move the tractor forward with respect to the loader (8), and attach the supporting member (b) and the receiving member example to the mounting member a2.
1 and the mounting portion Q81, respectively.

Next, connect the hydraulic control valve device l641 and the hydraulic device of the tractor with a hydraulic hose, and supply hydraulic oil to the packet cylinder α~ from the operating lever 161vC.1. f months”/
) The cylinder Oat supports the lift arm (! (to), etc.), and then the mounting member h
Removed from z. After doing this, extend the packet cylinder a0 using the operation lever and move the toe arm to the packet side pivot shaft I! v to move the mounting member az and the mounting portion a8 to the fitting position as shown in FIG. In this case, the fitting part @ phantom and the attachment part a81 of the attachment member ++21 are tapered fitted into the support part and the receiving member (to), respectively, and the fitting part @J and the attachment part 081
Since the front part 11η is circumscribed by an arc centered on the packet side pivot shaft (14), the fitting part Ill is connected to the support member (b) in response to the lowering of the toe arm. Next, the end of the fitting part also easily enters while being guided into the receiving member, and the fitting part @l and the fitting part aSa support member (color and color) Each pupil is determined inside the receiving member example.Next, the mounting member aW and the supporting member - are fixed by the storage member fixing member frame, and the mounting part fixing member ie and the connecting rod - are fixed from the bucket)+Iω. Removal, putting on &
I! ! With the fixture 15υ.

9. The fixing portion screw is fixed to the receiving member example, and the fitting l1
5 (811 and the mounting part Q81 are in contact with the support part and the receiving member (to)
Since they are each positioned as described above, the above-mentioned fixing can be easily performed. After this, if both the front loader members [12+] are connected using both connecting rods □□□, the installation work of the 70 front loader (8) to the tractor will be completed. is mounted on a tractor, but the fitting part of the mounting member α2 and the mounting part Q8 of the place 01 are tapered fitted into the support part and into the receiving member, respectively, so that the front loader (8) The installation strength for tractors is high.

When working with the front loader (8),
T! As shown in Fig. 4 and Fig. 6, a load acts on the mounting member side pivot shaft 1111 of the 7th arm and the place a in the direction of the arrows, but this load is absorbed by the tapered fitting portion. support.

FIG. 9 shows the other side of the fixing structure of the mounting member 03.
A mounting plate is fixed on the lower west side of both overhanging members, and a nut is fixed on the upper side of the bottom plate of the fitting S@υ. Furthermore, the space between the mounting member fixtures is L-shaped, and a collar is fitted in the middle of the L-shape, and the space between the fixtures is the mounting plate 16.
η and support-mounting and fitting f! Both bottom plates 1 of 151BIl
27162 from below and screwed onto the nut, the attachment member α21 is removably fixed to the four sides of the support member.

In the embodiment, the mounting member and the mounting portion are tapered fitted to the supporting member and the receiving member, respectively, but the mounting member and the mounting portion may be simply brought into contact with the supporting member and the receiving member, respectively.

As described in detail above, in the present invention, the mounting member is fixed by preventing the packet from rotating relative to the ground, and then rotating the lift arm in the vertical direction around the packet side pivot shaft using the packet cylinder. It is possible to change the position between the mounting position and the dismounting position above the mounting position, so that the 70 loader can be easily attached and detached from the vehicle, and there is no need to separately prepare a jack, which is convenient. Well, since the rotation of the packet with respect to the ground is prevented by the connecting rod that connects the two supporting members, there is no need to prepare a separate member to prevent the rotation, and it is also possible to prevent the front loader from rotating. There is no risk of forgetting to remove the connecting rod when removing it from the vehicle.

The present invention has the various advantages mentioned above, has a simple structure, can be implemented at low cost, and is highly profitable.

@Figures 9 to 1111 show the stand device for the front loader (8).
Mounting member a! The mounting member A is connected to the support member by a 7-lung flange via a mounting member fixture, and the mounting position of the mounting member A is higher than the front wheel (7). Further, the front ends of the four places are housed on the outer surface of the mounting plate □□□ by means of fixtures η. A stand member (78) is provided on the rear surface of the connecting member (8) that connects the front ends of the left and right lift arms (2) in the following manner.

That is, the stand member includes a support plate consisting of a short slope portion 4 and a long plate portion, a short plate portion (n-ratio engagement rod provided in an upwardly projecting shape at the end of the short plate portion 71), and a short slope portion 4. There is a long plate part on the inner side of the middle part.
The end gI/c of the abutting plate and the long plate part fixed in parallel with
Ii! It is composed of a ground plate which is installed in a horizontal position, and a leaf spring which is elastically bent outward on the outer surface of the midway part of the long plate part. Then, a lever-type long bracket is fixed in the horizontal direction at the center of the rear surface of the connecting member (9), and a screw is inserted in the rear side of the bracket 4 in the vertical direction, and the bottle-front bracket The stand member (c) is provided with a support plate - inside g so as to be movable in its longitudinal direction.
As shown in Figures 9 and 11, the stand position is such that the connecting member (9) protrudes between the front wheels (7) at the rear perpendicularly to K and supports the front loader (8), and as shown in Figure @10. In this way, the middle part of the long plate W5- is inserted into the bracket and can be freely changed to a storage position where it is stored horizontally on the rear side of the connecting member (9). A locking pawl is pivotally supported on the upper surface of the lateral center portion of the connecting member (9) so as to be swingable around a support shaft perpendicular to the upper surface.
In the stand position, c) is fixed by inserting the bottle (b) between the bent part of the support plate and the contact plate, and the locking claw releasably locks the engagement rod. be done.

Note that the locking pawl is equipped with a coil spring, and when the locking is engaged, the locking pawl (■) is biased in the direction of engagement, and when the locking is not engaged, the locking pawl is pushed against the stopper. It is held in the abutted and unattached position. A locking gap slH is formed on the left side of the bracket on the rear surface of the connecting member (9).
In the storage position, the stand member rI field is fixed by the free end of the leaf spring (1) being removably engaged with the engagement recess (-).

[Brief Description of the Drawings] Figures 1 to 8 show one embodiment of the present invention, where Figure @1 is a front view of a tractor equipped with a front loader, Figure @2 is a front view of the tractor, and Figure @3 is a front view of the same. The figure is a side view of the front loader and tractor separated, Figure 114 is a partial cross-sectional side view of the mounting S material and its vicinity, Figure 5 is a view indicated by the A-All arrow in Figure @4, and Figure 116 is the mounting section. and a side view of its vicinity, Figure @7 is a partially enlarged view of Figure @6, Figure 118 is a rear view of Figure 117, and Figure 119 is a partially cutaway 11111 side view showing the other side of the fixing structure of the mounting member. [
Figure 10 shows the front operating state. 111... Tractor body, +11)・70 loader, (11...~ lift arm, 121... Mounting member, OF...7 cylinder, I... Packet side pivot shaft, Qω... Packet, Qf9...Packet cylinder, a &... Mounting part, Kanji place, B...Connecting rod, Length...Supporting 8 materials, Example...Receiving member, ■...Isthmus part, 1: Fixing parts for mounting parts, 6: Fixing parts for mounting parts.

Claims (1)

[Claims] L A pair of left and right mounting members are provided at the base of the 7 tors of the 70 loader having a packet cylinder, and these two mounting members are connected by a connecting rod, and a remounting member t is provided.
A lift arm is provided on both sides of the vehicle and is detachably attached to the packet to prevent the Kerato from rotating with respect to the ground, and a lift arm is provided so that the mounting member can be repositioned between the mounting position and the removal position above it. A mounting device for a 70 loader, characterized in that it is rotatable in the vertical direction about a packet side pivot shaft jI.