JPS627074Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the folding structure of a vertical shaft rotating type Hetatsuda, which has a plurality of rows of widely arranged rotating bodies having tines radially around the vertical shaft. It is.

[Conventional technical field]

Generally, the rotating body on the side of a vertical-axis rotating type heater with a folding structure is automatically transmitted by a universal joint, so in the past, if the operator made an operational mistake and folded the side rotating body without cutting off the rotational power, there was a risk of damaging the universal joint. Furthermore, when in the folded state, there was a problem that the side rotating body could suddenly fall if the operator accidentally touched the hydraulic lever, endangering third parties.

Japanese Patent Application Laid-Open No. 56-32918 is known as a known technique of this type, in which the left and right rotating bodies are connected to each other by a hydraulic cylinder, and when folded, an elastic material is attached to the mutual stopper with the side rotating bodies. This technique is used to firmly maintain the locked state of the engagement device by utilizing the elastic force of the separate stopper.

[Problem that the invention attempts to solve]

In the above-mentioned conventional technology, the cylinder mounting part and each engagement device are separate and complicated structures, and the hydraulic cylinder is controlled until an appropriate compressive force is applied to the elastic stopper during folding, and the engagement pin is activated and engaged. There was a drawback that delicate operations such as matching were required.

[Means for solving problems]

In order to solve the above-mentioned drawbacks, a plurality of rows of rotating bodies connected to the rear of the tractor and having tines radially radially relative to the vertical shaft are installed horizontally, and power is transmitted from the PTO shaft of the tractor for forced drive. In the vertical shaft rotating type helicopter, the base of the cylinder is fixed to each of the left and right sides of the bracket of the frame body, and the rod end of the cylinder is connected to the side rotating body, thereby making it foldable.
A locking plate that is constantly biased downward and has an engaging portion at its tip is provided on the cylinder side, and a means for locking with the engaging portion is provided on the rod end side, so that when the side rotating body is folded, the locking plate is automatically activated. A vertical shaft rotation characterized by having a structure in which a fixing member is provided on the rod end side so that the rotating body on the side is held horizontally during work, and is automatically fixed by joining with the locking plate. The present invention provides a folding device for a type Hetezuda.

[Effect]

When folding the side rotating body of the Hetetsuda of the present invention, when the hydraulic cylinder is shortened by lightly pulling the string 32, the locking plate that is constantly urged downward easily engages with the locking means on the rod end side and folds. To complete the work and return the folded rotating body to the working state, pull the string lightly to release the engagement, the side rotating body will become horizontal, and the tip of the locking plate that is urged downward will become the rod end. It is automatically fixed by joining to the fixing material on the side.

〔Example〕

Next, the configuration will be explained based on the drawings.

Reference numeral 1 denotes a frame body, which has a pair of lower link pins 2 and a top link bracket 3, and has an inverted V shape. A main transmission 4 has a hollow case 5 fixed to both sides, has an input shaft 6 at the front, and has a bracket 7 arranged above. This hollow case 5 is connected to the frame body 1 described above.
Reference numeral 8 denotes hydraulic cylinders arranged on the left and right sides, the bases of which are fixed to the bracket 7. Reference numeral 9 is a submission, in which a rotating body 12 is rotationally driven by a bevel gear 11 housed in a transmission shaft 10 passing through a hollow case 5 . A pair of side plates 14 extend from the front and rear of the submission 9, and a support shaft 15 is provided. 5' is a hollow case that supports the rotating body 13 , and the rotating body is supported by a submission 9' provided at the end of the transmission shaft 10'.
13 is driven to rotate.

Reference numeral 16 denotes a support boss, which is provided on a connecting plate 17 protruding from the base of the hollow case 5' described above, and is fitted and supported on the support shaft 15. Reference numeral 18 indicates a universal joint, and the center of the universal joint 18 is located at the support shaft 15.
coincides with the center of the transmission shafts 10 and 1, and both ends thereof
0'.

Reference numeral 19 denotes a cylinder rod, the tip of which is connected to the regulating pipe 20 of the hydraulic cylinder 8 , and fixed to the base end of the hollow case 5'. FIG. 4 shows a cross section of the end attachment part of the cylinder rod 19.
is a regulating pipe that passes through the cylinder rod 19 and restricts the movement range with fixing members 21 and 22, and a coil spring 23 is wound on the outside to restrict the movement range of the cylinder rod 19.
2, it is loaded with an appropriate elastic length L.
This expansion/contraction length L is set within a range in which the rotating body 13 swings in accordance with the grounding conditions.

A boss 24 is fixed to the base of the regulating pipe 20, and a protruding piece 25 is fixed to the upper surface of the other part. 2
6 is a locking plate for the cylinder 8a of the hydraulic cylinder 8.
The base of the bracket 7 is rotatably fixed to the bracket 7, a locking plate 26 is rotatably fixed to the other part, and a bracket 27 is fixed to the lower part of the locking plate 26. As shown in FIGS. 6, 7, and 8, the locking plate 26 has a shape, and has brackets 28 and 29 provided therein and an engagement hole 30 that engages with the protrusion 25.
will be established. 34 is a joint surface at the tip of the locking plate 26. A spring 31 is attached to the brackets 27 and 28.
It will be made to hang. 32 is a string (string-like thing)
Bind the base to the bracket 29 of the locking plate 26 with
The tip of the string is passed through a guide rod 33 and placed around the driver's seat of the tractor.

Next, to explain the operation, the vertical shaft rotating type header of the present invention is connected to the top link and lower link installed on the tractor, and the top link bracket 3 and lower link pin 2 of the frame body 1, respectively, and the PTO shaft of the tractor is connected. (not shown) and input shaft 6 are connected by a universal joint (not shown) to transmit power and enter the field. When performing diffusion work (standard), the work is carried out by rotating each rotating body 12 , 13 with the power of the PTO shaft of the tractor in the state shown in Fig. 2. At this time, the joint surface 34 of the locking plate 26 comes into contact with the fixing member 22 and is fixed, so that the length of the hydraulic cylinder 8 is constant, and the end portion of the cylinder rod 19 swings appropriately within the setting range L.

Next, when storing or moving on a farm road, etc., fold the rotating body 13 on the side upwards to create the state shown in Fig. 3, turn off the power to the PTO shaft, pull the string 32, and rotate the locking plate 26 upwards. By shortening the hydraulic cylinder 8 , the hollow case 5' of the rotating body 13 is lifted,
When the string 32 is released, the engagement hole 30 of the locking plate 26
and the protruding piece 25 fixed to the regulating pipe 20 are fitted together,
The rotating body 13 is automatically fixed in the folded state.

Further, when returning to the working state, the hydraulic cylinder 8 is further shortened, the string 32 is pulled, the locking plate 26 is rotated upward, and the engagement hole 30 is opened from the protrusion 25.
When the hydraulic cylinder 8 is released and the hydraulic cylinder 8 is extended, the rotating body 13 rotates downward due to its own weight. At that time, when the string 32 is released, the fixing member 22 is held by the spring 31.
and the joint surface 34 of the locking plate 26 abuts. and,
Work is carried out by transmitting the power of the PTO shaft to the rotating bodies 12 and 13 .

〔effect〕

Next, the effects will be explained. When folding the rotating body at the side end, which is a wide working body, simply shorten the hydraulic cylinder by pulling the string from the tractor cockpit, and the locking plate will automatically engage with the protrusion to securely secure the fold. Because of this, it can be folded while sitting on the tractor. In addition, during work, the joint surface of the locking plate can be automatically fixed to the fixed material without having to get off the cockpit, and even if the operator accidentally operates the hydraulic cylinder, the rotating body is automatically fixed. ,
This has the effect of eliminating joint damage and danger to third parties.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted plan view of the present invention, Fig. 2 is a partially omitted rear view of the present invention, Fig. 3 is a partially omitted rear view of the folded state, and Fig. 4 is the end of the hydraulic cylinder. 5 is a plan view showing the universal joint of the submission, FIG. 6 is a plan view of the main part, FIG. 7 is a rear view of the main part, and FIG. 8 is a side view of the main part. 1...Frame body, 2...Lower link pin, 3
...Top link bracket, 4...Main transmission, 5, 5'...Hollow case, 6...Input shaft, 7
...Bracket, 8 ...Hydraulic cylinder, 8a...
...Cylinder, 9,9'...Submission, 1
0,10'...Transmission shaft, 11...Bevel gear, 1
2... Rotating body, 13 ... Rotating body, 14... Side plate, 15... Support shaft, 16... Support boss, 17...
Connection plate, 18...Universal joint, 19...Cylinder rod, 20...Restriction pipe, 21...Fixing material,
22...Fixing material, 23...Coil spring, 24...
Boss, 25... protrusion, 26... locking plate, 27...
Bracket, 28...Bracket, 29...Bracket, 30...Engagement hole, 31...Spring, 32...
... String, 33 ... Guide rod, 34 ... Joint surface, 35
...Tine.

Claims (1)

[Scope of utility model claims] A plurality of rows of rotating bodies connected to the rear of the tractor and having tines radially around a hard shaft are installed horizontally, and power is transmitted from the PTO shaft of the tractor to forcibly drive the frame. The base of the cylinder is fixed to each of the left and right sides of the body bracket, and the rod end of the cylinder is connected to the side rotating body to make it foldable.In this case, the tip is constantly biased downward. A locking plate having an engaging portion is provided on the cylinder side, and a means for locking with the engaging portion is provided on the rod end side, so that when the side rotating body is folded, it is automatically fixed, and further on the rod end side. A folding device for a hard-shaft rotary Hetatsuda, characterized in that it has a structure in which a fixing member is provided to automatically fix the rotary body on the side in a horizontal state during operation by connecting it to the locking plate.