JPS6242561Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a connection structure for working machines in mobile agricultural machinery. The purpose of this invention is to provide a working machine connection structure that can reliably connect the machine and the working machine.

In order to achieve the above object, this invention provides an engaging portion between an engaging member at one end in the vertical direction and a hook between the connecting members between the traveling vehicle body side and the working device side connected thereto. The other end is rotatable so as to move toward and away from the center, and the left and right sides of this end are comprised of an engaging portion that engages with each other and a plurality of locking hooks. A locking device is provided that constantly springs the locking hook toward the locking side using a spring, and each of the left and right locking hooks is connected with a locking hook support portion through play to prevent engagement with the engaging portion. This is a configuration of a coupling device for an agricultural machine, etc., which is provided with a release device for releasing the coupling device.

Hereinafter, one embodiment of this invention will be described in detail using the drawings.

1 and 2 are a partially omitted overall side view and an overall plan view of the reaping and tying machine of this invention, in which the running section 9 and the reaping and tying section 11 can be freely attached and detached by the connecting section A. At the same time, the reaping binding section 11 is connected to the traveling section 9 by connecting a driving section.

The traveling section 9 is configured as follows. That is, 13 is a prime mover, and the engine frame 1 is extended rearward by a transmission case 15.
It is installed on 7. A transmission case 19 houses a power transmission device (not shown) such as a belt transmission mechanism for transmitting the power of the prime mover 13 to the transmission case 15. Reference numeral 21 denotes a pair of left and right wheels, which are connected to a power transmission device (not shown) such as a gear transmission mechanism installed inside the transmission case 15.
The shaft is mounted on a pair of left and right axles 23 provided at the terminal end of the shaft. Reference numeral 25 denotes a handle frame, which is attached to a support bracket 27 provided at the upper part of the mission case 15. A steering handle 29 extends rearward from the handle frame 25. Reference numeral 31 denotes a chain lever, which has a guide groove 3 of a guide plate 33 integrally provided on the handle frame 25.
5 so as to be able to swing left and right. 37
is the reaping output box, and the transmission case 1
A reaping output shaft 3 is connected to a transmission device (not shown) such as a bevel gear.
9 is rotatably supported.

The reaping bundle 11 is constructed as follows. That is, 41 is a reaping frame, a binding frame 43 is connected to the right side (upper side in FIG. 2) of the reaping frame 41, and a weeding rod support member 45 is connected to the left side (lower side in FIG. 2). are doing.
A reaping input box 47 is provided in front of the reaping frame 41, and rotatably supports a reaping input shaft 49 that is operatively connected to a transmission device (not shown) such as a bevel gear. The reaping input shaft 49 is operatively connected to the reaping output shaft 39 of the reaping output box 37 of the traveling section 9 via a connecting member 51. Reference numeral 53 designates a plurality of weeding devices, each of which is composed of a weeding body 55 and a weeding rod 57, and is provided so as to protrude forward, for weeding and guiding the planted stem culms. Reference numerals 59a and 59b denote a pair of right and left pulling devices, which are disposed in a backward-sloping manner behind the weed cutting device 55, and are used to pull up the planted stem culms that have been separated by the weed cutting device 53. Reference numeral 61 denotes a reaping device, which is provided at the rear lower part of the pulling devices 59a, 59b, and is used to reap the stem culm pulled up by the lifting devices 59a, 59b from its root portion. 63
Reference numerals a and 63b denote a pair of left and right star wheels, which scrape the base of the reaped stem culm that has been reaped by the reaping device 61. Reference numerals 65a and 65b denote a pair of upper and lower transverse feed devices, which are provided at the rear upper part of the reaping device 61 and convey the cut stem culms cut by the reaping device 61 to one side of the machine body. 6
Reference numeral 7 denotes a binding device, which is disposed at the end of the feeding devices 65a, 65b, and collects and ties the stem culms conveyed by the lateral feeding devices 65a, 65b, and discharges them into the field.

The connecting portion A is configured as follows. That is, in FIGS. 3 and 4, a lower hitch 69 is provided on the traveling section 9 side and projects from the lower front surface of the mission case 15, and the recess 3 is formed in the lower front end of the lower hitch 69. The lower hitch 6
9 is arranged inside the pair of left and right wheels 21. Reference numeral 71 denotes an upper engaging member provided on the traveling portion 9 side, and is provided horizontally across the front portion of the support bracket 27 fixedly installed above the mission case 15 in a horizontal manner. Reference numeral 73 denotes an engaging portion provided on the reaping bundling portion 11 side, which is fixed to the lower part of the reaping frame 41, and is connected to the recessed portion 3 provided on the lower hitch 69 on the traveling portion 9 side.
to detachably engage. Reference numeral 1 denotes a hook provided on the side of the reaping binding section 11, which is integrally connected to the upper part of the reaping frame 41, and removably engages the upper engaging member 71 provided on the side of the running section 9.

A plurality of locking devices 5 are provided between the lower hits 69. The lock device 5 is constructed as follows. That is, in FIG. 5, reference numeral 75 denotes a locking hook having an upward recessed portion 77 at its tip, and a shaft 79 horizontally suspended on the lower hitch 69.
It is supported so that it can swing up and down. Further, a support member 81 is fixed to the lower hitch 69 at an upper position with an appropriate distance from the shaft 79, and an elastic force such as a coil spring is connected between the support member 81 and the locking hook 75. 83 has been attached.
And always by this ammunition 83. The locking hook 75 is biased upward to lock the lower engaging member 73 engaged in the engaging portion 3. 84 is a release device, and this release device 84 consists of an operating rod 85 and an operating lever 7. Reference numeral 85 denotes an operating lever connected to the rear end of the locking hook 75 via a connecting member 87, and the upper end of the operating lever 85 is connected to the operating lever 7. The operating lever 7 is pivotally attached to a support bracket 27 so as to be able to swing laterally. When the operating lever 7 is manually operated and the operating rod 85 is pulled upward, that is, when the locking device 5 is released, the operating lever 7 engages with the locking portion 89 provided on the support bracket 27. It is configured so that it can be kept locked by engaging it. As shown in FIG. 6, the connecting portion between the locking hook 75 and the operating rod 85 connects the lower end of the operating rod 85 to a substantially central portion of the connecting member 87, and connects the locking hook supporting portion of the connecting member 87. 91 is fitted into a long hole 93 bored at the rear end of the locking hook 75. Appropriate play is formed in the vertical direction between the elongated hole 93 of the locking hook 75 and the locking hook support portion 91. By providing this play,
This allows the locking hooks 75 of a plurality of locking devices 5 to engage with the lower engaging member 73 simultaneously and reliably.

In the above configuration, the reaping and tying machine 1 is attached to the traveling section 9.
1, first manually operate the operating lever 7 and pull the operating rod 85 upward;
That is, in a released state, the lock device 5 is engaged with the locking portion 89 of the support bracket 27 to maintain the lock. At this time, the locking hook 75 of the locking device 5
rotates downward against the biasing force of the ammunition 83,
The engaging portion 3 of the lower hitch 69 is released. In this state, the lower engaging member 73 on the reaping bundling part 11 side is engaged with the engaging part 3 of the lower hitch 69 on the running part 9 side, and the upper part on the running part 9 side is inserted into the hook 1 on the reaping bundling part 11 side. The engaging member 71 is engaged and connected. Thereafter, when the operating lever 7 is manually operated to release the locking portion 89 of the support bracket 27, the locking hook 75 is rotated upward by the biasing force of the bullet 83 and is locked by the upward recessed portion 77. The joint 73 is locked into the recess 3 of the lower hitch 69.

Since the present invention has the above-mentioned configuration, even if the locking hook 75 is always urged in the direction of engagement by the spring 83, the locking hook 75 can be held by the engaging portion 73. Even if the locking hooks 75 are engaged by swinging against the spring 83, there is play between the release device 84 and the locking hooks 75, so that the left and right locking hooks 75 cannot be engaged. The engagement with the portions 73 can be performed smoothly and accurately,
Further, these engagements by the springs 83 can be sufficiently maintained, and the connection of the working device to the traveling vehicle body side can be stabilized.

It should be noted that this invention is not limited to the above-mentioned embodiments, and can be implemented in modes other than the above-mentioned embodiments.

Furthermore, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the reference numerals do not limit the technical scope of this invention.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, and FIGS. 1 and 2 are a partially omitted overall side view and an overall plan view of the reaping and tying machine according to this invention, and FIG.
4 is an enlarged perspective explanatory view of the connecting portion, FIG. 5 is an enlarged side sectional view of the main part, and FIG. 6 is a sectional view taken along the line -- in FIG. 5. Explanation of symbols representing main parts of the drawing, 5...
Locking device, 73... engaging portion, 84... releasing device.

Claims (1)

[Scope of utility model registration request] Between the connecting members between the traveling vehicle body side and the working device side connected thereto, the engaging member 71 on one end side in the vertical direction and the hook 1 are connected at the other end. Engagement portions 73 are provided on both left and right sides of the contact/separation side to engage with each other.
and a plurality of locking hooks 75, and is provided with a locking device 5 that constantly springs each of the locking hooks 75 toward the locking side by a spring 83. Hook support part 9
A coupling device for an agricultural machine or the like, which is provided with a release device 84 that releases the engagement with the engagement portion 73 by coupling with the engagement portion 73.