JPH0220278Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stand storage structure for storing a stand for holding a front loader in an upright position when not in use, and for storing the stand when the front loader is in use.

In conventional stand storage structures, the stand is attached to the underside of the boom via pins, or is stored by using it as an upper connecting member for the pair of left and right masts, which eliminates the hassle of attaching and detaching the stand to the storage section. In addition, the shape of the stand that can be used is limited to a straight line, making it difficult to apply the stand to an L-shaped stand attached to a mast.

In view of these conventional problems, the present invention provides a front loader in which the stand can be easily and easily attached and removed from the side of the tractor without using pins, and can be applied not only to linear shapes but also to L-shapes etc. The purpose is to provide a stand storage structure for the device.

The features of the present invention for achieving this purpose include: a mounting mechanism 4B mounted on the lower abdomen of the tractor body 1; a front loader 4A to which the mast 8 is detachably mounted on the mounting mechanism 4B; In mounting a front loader that includes a pair of left and right stands 4C that are removably engaged to hold the front loader 4A detached from the mounting mechanism 4B in an upright position, the mounting mechanism 4B extends from the left and right sides of the tractor body 1. the rear surface 30 of the main frame 15 that supports the mast 8; and the side surface 31 of the auxiliary frame 16 extending rearward from the middle of the main frame 15 in the left-right direction.
Thus, an L-shaped stand storage section 32 in plan view is formed, and each of the left and right stands 4C has one end connected to the mast 8.
When the stand 4C is engaged and the other side end touches the ground, the stand 4C is formed into an L-shape.
6 is provided with mounting metal fittings 37 and 38 which are detachably engaged with and held along the side surfaces 31 of 6, respectively.

The invention will now be described in detail with reference to the illustrated embodiments.

In the first embodiment shown in FIGS. 1 to 5,
Reference numeral 1 denotes a tractor body, which has front wheels 2 and rear wheels 3.

4 is a front loader device; front loader 4
A, a mounting mechanism 4B and a stand 4C are provided.

The front loader 4A includes a pair of left and right booms 6 located on both sides of the bonnet 5 of the tractor body 1, a pair of left and right masts 8 that support each boom 6 via a pivot shaft 7 so as to be able to rise and fall, and a left and right mast 8 that supports each boom 6 so as to be able to rise and fall. A pair of boom cylinders 9, a bucket (working part) 10 pivotally connected between the front end of the boom 6,
It includes a pair of left and right bucket cylinders 11 for rotating the bucket 10, and a pair of left and right braces 12 that project forward from the mast 8.

The lower end of each mast 8 is tapered and removably fitted into the mast receiving portion 13 from above, and is removably fixed by a fixture 14 that is removably inserted across both.

The mounting mechanism 4B is divided into front and rear parts, and the front side consists of a pair of left and right brace receiving members 22 fixed to the front vehicle bearing stand 19 along with a bumper 21, and a pair of left and right braces 12 connected at the ends with a connecting rod 23 is fitted. The fitting portion 25 is configured to be removably fitted and to be prevented from coming off by the locking member 24.

The rear side of the attachment mechanism 4B includes a main frame 15 laterally attached to the lower abdomen of the tractor body 1, and a pair of left and right auxiliary frames 16 extending rearward from the rear of the main frame 15 along the tractor body 1.
The rear part of this auxiliary frame 16 is connected to the rear axle case 18.
It consists of a mounting bracket 17 etc. for mounting on the.

A tractor body 1 is provided on the upper surface of the main frame 15.
a pair of left and right brackets 28 for mounting on the
The mast receivers 13 are provided at both left and right ends, and extend from the tractor body 1 to the left and right.

The main frame 15 is made of a U-shaped cross section, and the auxiliary frame 16 is made of a flat plate, and the vertical widths of both frames 15 and 16 are the same.
Those outer peripheral surfaces 2 facing the sides of the tractor body 1
9 is formed by the rear surface 30 of the main frame 15 and the side surface 31 of the auxiliary frame 16;
1 is adjacent to the L-shape in plan view, and this outer peripheral surface 2
A stand storage portion 32 is formed at 9.

As shown in FIGS. 2 and 3, the stand 4C is for detaching the front loader 4A from the tractor body 1 and holding it in an upright position independently. It is bent to provide a corner reinforcing member 33, and a ground plate 34 is provided at the lower end of the corner reinforcing member 33, and a pair of left and right masts 8 are provided.
It is installed by inserting the end of one side A of the horizontal L-shape from the side. The reason why this stand 4C is formed into an L-shape and is provided so as to extend from the mast 8 is as follows.
When front loader 4A is in an upright position and the tractor is moved forward and backward to separate them, the front wheels 2
This is to allow the vehicle to pass between the left and right stands 4C.

3 to 5, a hook 36 made of an L-shaped bar is welded to the middle of the vertical portion (other side of the L-shape) of each stand 4C, and a hook 36 made of an L-shaped bar is welded to the middle of the vertical portion (other side of the L-shape) of each stand 4C,
The stand housing portion 32 is provided with three mounting fittings 37, 38, and 39 at intervals, and is configured to detachably engage the two stands 4C.

The mounting bracket 37 is a U-shaped spring plate that is attached to the rear surface 30 of the main frame 15 via bolts 40, and can be held and supported by engaging the horizontal portions A of the two stands 4C from above. It is held elastically to prevent natural separation.

The mounting bracket 38 is a flat plate having two holes 41.
It is welded (or detachable) to the side surface 31 of the auxiliary frame 16, and the hooks 36 of the two stands 4C are inserted into the holes 41 from the rear to regulate the position in the vertical and horizontal directions.

The mounting bracket 39 is a U-shaped member provided on the connecting plate 42 that connects the main frame 15 and the auxiliary frame 16, and is capable of receiving the midway portions of the two stands 4C, and is used to engage and detach the stands 4C. The role of holding the vertical part B, which is the center when rotating,
Prevents rattling during storage.

In order to store the stand 4C in this first embodiment, the hook 36 is inserted into the hole 41 of the mounting bracket 38 with the horizontal part A of the stand 4C tilted upward from the side of the tractor body 1, and The midway portion is placed in the mounting bracket 39, and then rotated around the vertical portion B, the horizontal portion A is lowered, and engaged into the mounting bracket 37 against its elastic force.

As a result, the two stands 4C are stored along the outer circumferential surface 29 of the mounting mechanism 4B, blocking the operator's view and preventing the front loader 4A from blocking the operator's view.
Since it is elastically held by the mounting bracket 37 while the tractor is running, it will not rattle or come off. Further, since the stand 4C is stored by simply engaging and disengaging without using a pin, the operation is simple and easy, and there is nothing to lose. Furthermore, stand 4
Since the boom 6 does not become heavier by the weight of the stand 4C compared to a conventional boom 6, the energy loss during operation of the front loader 4A is reduced.

Figures 6 and 7 show a second embodiment of the present invention, in which a rectangular shape is made diagonally in the middle of the vertical part of the stand 4C and engaged from below to prevent it from coming off laterally. A locking portion 45 is formed to do this.
Other configurations and storage operations are the same as in the first embodiment.

8 and 9 show a third embodiment of the present invention, in which the stand 4C is formed of a round bar, and only the end of the horizontal part A is formed into a square shape, and the end of the vertical part B is formed into a square shape. A short round bar 46 is welded in parallel in the middle.

The mounting bracket 38'' is formed of a spring plate, is attached to the auxiliary frame 16 via bolts 47, and has two circular recesses 48 that engage with the vertical portion B.

Similar to the first and second embodiments, this stand 4C is made by inserting the vertical part B and the round bar 46 into the mounting bracket 38'' with the horizontal part A tilted, and applying the elastic force of the mounting bracket 38''. When the horizontal part A is turned horizontally so that it engages with the mounting bracket 37, the vertical part B engages with the recess 48, and the vertical part B and the round bar 46 become horizontal. It is elastically clamped by the mounting fittings 38''.

In each of the above embodiments, two stands 4C are housed from one side of the tractor body 1, but one stand 4C is housed on each of the left and right outer surfaces of the mounting mechanism 4B. A pair of left and right stands 4C may be housed on each of the left and right sides of the tractor body 1 by providing mounting brackets.

According to the present invention described in detail above, the stand 4C is stored in the stand storage section 32 of the mounting mechanism 4B, so the weight of the stand is not added to the boom 6 during loader work, reducing energy loss, and Although the main frame 4C is formed into an L-shape that stably supports the front loader 4A in an upright position and allows the front wheels 2 of the tractor to pass through, the main frame 1
By utilizing the L-shaped outer surface formed by the rear surface 30 of the auxiliary frame 16 and the side surface 31 of the auxiliary frame 16, it can be stored compactly in a location that does not interfere with loader work. are attached to the mounting brackets 37 and 3 along the rear surface 30 and side surface 31, respectively.
Since it is engaged and held in a detachable manner via 8, there is little play and it can be attached and detached simply and easily.

[Brief explanation of drawings]

Figures 1 to 5 show the first embodiment of the present invention, with Figure 1 being a partially cross-sectional overall side view, Figure 2 being a side view of the front loader when detached, and Figure 3 being in use. FIG. 4 is a perspective view of the main parts of the present invention, FIG. 5 is a cross-sectional view taken along the line -- in FIG.
7 and 7 show a second embodiment of the present invention, FIG. 6 is a perspective view of the main parts, FIG. 7 is a sectional explanatory view showing the storage operation of the stand, and FIGS. 8 and 9 are A third embodiment of the present invention is shown, with FIG. 8 being a perspective view of the main parts, and FIG. 9 being a cross-sectional explanatory view showing the storage operation. 4...Front loader device, 4A...Front loader, 4B...Mounting mechanism, 4C...Stand,
6...Boom, 8...Mast, 15...Main frame, 16...Auxiliary frame, 29...Outer peripheral surface, 3
0...Rear surface, 31...Side surface, 32...Stand storage section, 37...Mounting bracket, 38...Mounting bracket, A...Horizontal part, B...Vertical part.

Claims (1)

[Claims for Utility Model Registration] An attachment mechanism 4B attached to the lower abdomen of the tractor body 1, a front loader 4A to which a mast 8 is detachably attached to the attachment mechanism 4B, and an attachment mechanism 4
In a front loader device equipped with a pair of left and right stands 4C that releasably engage with each other to hold the front loader 4A detached from the tractor body 1 in an upright position, the mounting mechanism 4B extends from the left and right sides of the tractor body 1 and attaches to the mast. 8, and a side surface 31 of an auxiliary frame 16 extending rearward from the middle of the main frame 15 in the left-right direction.
Thus, an L-shaped stand storage section 32 in plan view is formed, and each of the left and right stands 4C has one end connected to the mast 8.
The stand 4C is formed into an L-shape that engages with the rear surface 30 of the main frame 15 and the auxiliary frame 16 on each side of the stand storage section 32.
A stand storage structure for a front loader device, characterized in that mounting brackets 37 and 38 are provided which are detachably engaged and held in a state along side surfaces 31 of the front loader device.