JPH0539219U - Agricultural work vehicle control pedal device - Google Patents

Abstract

(57) [Abstract] [Purpose] Simplifies the structure of the brake pedal device of an agricultural work vehicle in which an engine and a transmission are provided in the front part of a machine base having front wheels and rear wheels, and a driving part is provided in the rear part of the engine, and The work of assembling the brake pedal is facilitated. [Structure] An agricultural work vehicle in which an engine and a transmission are provided in a front part of a machine base having front wheels and rear wheels, and an operating section is provided in a rear part of the engine, wherein an upper frame constituting the machine frame is provided with an upper frame. A brake pedal shaft or a clutch pedal shaft extending further outward is supported, and a substantially linear steering pedal boss is attached to an extending portion of the brake pedal shaft or the clutch pedal shaft.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a steering pedal device for an agricultural work vehicle in which an engine and a transmission are provided in a front part of a machine base having front wheels and rear wheels, and a driving part is provided in a rear part of the engine.

[0002]

[Prior Art]

 Conventionally, the left and right brake pedals or clutch pedal shafts of agricultural work vehicles have their left and right ends supported by the left and right frames that make up the machine base, and the arm parts of the pedals are bent from the inside of the frame to the upper right outside. There were many songs that were composed.

[0003]

[Problems to be solved by the device]

 The steering pedal such as the brake pedal or the clutch pedal in the known agricultural work vehicle is configured such that the arm portion is largely bent outward, so that not only is the manufacturing of the steering pedal complicated, but also the frame The work was not easy because the brake pedal was assembled inside.

[0004]

[Means for Solving the Problems]

 The present invention is an agricultural work vehicle in which an engine and a transmission are provided in the front part of a machine base having front wheels and rear wheels, and a driving section is provided in the rear part of the engine. The above-mentioned problem is solved by supporting a brake pedal shaft or a clutch pedal shaft extending outward from the frame and mounting a substantially linear steering pedal boss on the extending portion of the brake pedal shaft or clutch pedal shaft. Settled.

[0005]

[Action]

 When the agricultural work vehicle stops braking while moving forward, the left and right brake pedals located on the sides of the machine base are stepped on at the same time, so that the left and right brakes of the rear operating section are simultaneously activated. If you depress only the right brake pedal while moving forward, the brake on the right side will operate and the agricultural work vehicle will turn to the right. Also, if only the left brake pedal is depressed while moving forward, the brake on the left side will operate and the agricultural work vehicle will turn to the left. Furthermore, when the clutch pedal is depressed, the main clutch is disengaged. When assembling the control pedal, attach the brake pedal or the boss of the clutch pedal to the part of the brake pedal shaft or the clutch pedal shaft that extends outward from the left and right frames.

【Example】

 A passenger rice transplanter according to an embodiment of the present invention will be described below. The main frame 1 is composed of an upper frame 2 and a lower frame 3, and the upper frame 2 is composed of left and right upper vertical frames 2a, 2a. The front part is bent to form a series, and the front part, the middle part and the rear part are connected by the upper horizontal frame 2b .. to form a frame body, and the lower frame 3 is connected to the upper vertical frame 2a. The front end and the rear end of the lower vertical frames 3a, 3a, which are narrower in space, are connected to each other by the mission case mounting plate 5, the rear axle case support plate 6 and the lower horizontal frame 3b to form a frame body. The upper part of the mounting plate 5 is welded to the upper horizontal frame 2b in the middle of the upper frame 2, and the horizontal corner pipe 8 is welded to the seat frames 7 and 7 standing on the rear part of the lower frame 3. At the same time, both ends thereof are fixed to the upper vertical frames 2a, 2a, the rear ends of the upper vertical frames 2a, 2a are curved downward, and the lower ends thereof are welded to both ends of the lower horizontal frame 3b. Are combined together.

A rear surface of the transmission 10 is screwed to the transmission case mounting plate 5 and a right side surface of the transmission 10 is screwed to a receiving plate 11 welded to the upper frame 2. Since the engine base 12 is attached to the lateral portion and the front upper horizontal frame 2b, and the engine 13 is attached to the engine base 12 via a vibration-proof rubber or the like, the engine 13 and the transmission 10 should be removed separately. When only the transmission 10 is removed, the engine 13 is left as it is, the belt 15 is removed by retracting the tension pulley, and the bolts are removed from the receiving plate 11 and the transmission mounting plate 5, as shown in FIG. 10 can be taken out downwards.

The auxiliary seedling frame 16 having a plurality of preliminary seedling dishes 17, 17 arranged on both sides of the front part of the machine body has a downward U-shape in which the rear part hangs longer than the front part in a side view, and the rear part At the lower end of the hanging portion, a supporting shaft 18 is provided so as to project rearward, and both end portions of a supporting frame 20 formed of a lateral rectangular pipe welded to the front upper surface of the lower frame 3 are slanted upward. The support shaft 18 is inserted into and removed from the pipes 21 and 21 fixed to the upper ends thereof so as to be able to be inserted, removed, rotated, and fixed. Further, a U-shaped frame rod 19a to which an elevating step 19 is attached is fixed to an intermediate portion of the upper vertical frame 2a of the upper frame 2, and a front portion of the frame rod 19a intersects with the support frame 20. Since they are welded to the part, they will reinforce each other and the rigidity of both parts can be improved. Reference numeral 24 is a side marker attached by a wing bolt 24a so as to have a use posture that projects to the side and a storage posture that rotates inward.

A bumper 23 is attached to the front surface of the upper frame 2, and an intermediate portion of a support rod 25 attached to the upper frame 2 by being interposed between the bumper 23 and the front surface of the upper frame 2. Has a center marker 26 whose lower end portion is curved rearwardly rotatably supported by a pin 27 so that the center marker 26 can be sequentially slidably fitted with a plurality of pipes having different diameters. The index body 28 is attached to the tip of the driver, and the front-back angle and length are adjusted according to the eye height of the driver seated in the driver's seat 30 during work. However, when traveling on the road, or when the work is completed and stored, etc., it is contracted and pivoted rearward so as to be close to the front surface of the bonnet 31.

Reference numeral 32 denotes a battery arranged in the right front part of the upper frame 2, and is contained in a storage box 33 which is lower than the battery 32 and whose outside is open. The front plate 35a and the rear plate 35b fixed to 2c are provided with a guide groove 36 whose upper part is bent inward downward and whose outer part is slanted downward from the bent part 36a. A regulating bolt 37, which is screwed into the intermediate screw hole from the inside, is slidably inserted into the guide groove 36. The bumper 23 is divided at the front of the battery 32 and the divided portions are connected by a hinge 38. Therefore, when the battery 32 stored in the state (a) is taken out, the nut 39 on the right rear portion is pulled out, the split portion 23a of the bumper 23 is rotated forward to the released state, and the storage box 33 is slanted. When the bolts 37, 37 are lifted outward, the restriction bolts 37, 37 move to the bent portion of the guide groove 36, and the battery 32 rises to the position (b). Then, when it is moved diagonally outward on the left side, the regulating bolts 37, 37 are guided by the guide groove 36 and move to the lower end thereof, and the battery 32 moves outward downward and into the state of (c), It can be easily taken out from the storage box 33 to the side.

Further, brackets 40 a, 40 a hanging down from an intermediate portion of the upper frame 2 rotatably support a lateral brake pedal shaft 40, and the brake pedal shaft 40 is more than the upper frame 2. The boss of the right brake pedal 41 is rotatably mounted on the extending portion, and the boss of the left brake pedal 42 is mounted so as to rotate integrally with the boss of the right brake pedal 41. The protruding arm 41b and the arm 42b protruding from the brake pedal shaft 40 are linked to the brake arms 46 and 46 of the rear axle case 45 by rods 43 and 43, and the clutch pedal shaft 47 connects and disconnects the main clutch. By attaching the boss of the pedal 48 and extending the brake pedal shaft 40 to the outside of the upper frame 2. The left and right brake pedals 41 and 42 can be easily assembled, and the arm portion of the pedal is formed in a straight shape, and it is not necessary to have a complicated structure such as bending outward as in the conventional case.

When the agricultural work vehicle stops braking while moving forward, when the left and right brake pedals 41 and 42 arranged on the sides of the machine base are simultaneously depressed, the arms 43a and 42a from the respective arms 41a and 42a are moved rearward by rods 43 and 43. The left and right brakes operate simultaneously by interlocking with the brake arms 46, 46 of. When the agricultural work vehicle makes a right turn while moving forward, if only the right brake pedal 41 is stepped on, the boss of the right brake pedal 41 rotates on the brake pedal shaft 40, and the rod 41 from the arm 41a protruding from the boss rotates. As a result, only the brake on the right side operates by interlocking with the rear right brake arm 46. When the agricultural work vehicle makes a left turn while moving forward, if only the left brake pedal 42 is depressed, the boss of the left brake pedal 42 rotates integrally with the brake pedal shaft 40 and the arm 42a protruding from the brake pedal shaft 40. From the rod 43, it is interlocked with the left brake arm 46 at the rear part and only the left brake is operated.

In the figure, reference numeral 50 is a top link, 51 is a pair of left and right lower links, and a planting device, a fertilizer applying device, a spreader, and other working machines are selected for the frame connected to the rear part of them. Can be installed. Reference numeral 52 is a propeller shaft, 53 is a front portion of the bonnet 31, both sides thereof, between the operation panel and the lower seat cover 54, and a series of steps on both sides of the seat cover 54, and 55 is a support metal of the front portion of the step 53. Is.

[0014]

[Effect of the device]

 The present invention is an agricultural work vehicle in which an engine 13 and a transmission 10 are provided in a front part of a machine base having front wheels and rear wheels, and a driving part is provided in a rear part of the engine 13, and an upper frame constituting the machine base. 2, a brake pedal shaft 40 or a clutch pedal shaft 47 extending outward from the upper frame 2 is supported, and a substantially linear steering pedal of the brake pedal shaft 40 or the clutch pedal shaft 47 is provided. Since the boss is attached, the steering pedal can be easily assembled from the outside, and the arm portion of the steering pedal has a straight shape and does not have a complicated structure such as bending outward as in the past. Since it is better, the processing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same with the bonnet and operation panel omitted.

FIG. 4 is a front view of a seat frame.

FIG. 5 is a front view of a bumper and a battery mounting portion.

FIG. 6 is a plan view of a frame.

FIG. 7 is a side view of the same.

FIG. 8 is a side view of an engine and a mission case.

FIG. 9 is a rear view of a pedal support portion.

[Explanation of symbols]

 1 Main Frame 2 Upper Frame 3 Lower Frame 5 Mission Case Mounting Plate 10 Mission Case 13 Engine 20 Support Frame 40 Brake Pedal Shaft 41 Right Brake Pedal 42 Left Brake Pedal 45 Rear Axle Case 46 Brake Arm 47 Clutch Pedal Shaft 48 Clutch Pedal

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuji Tanaka, 667 Izuya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Address 1 Within Mitsubishi Agricultural Machinery Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. An engine 13 and a transmission 10 are provided at the front of a machine base having front wheels and rear wheels, and the engine 13
An agricultural work vehicle having a driving part provided at the rear part thereof, wherein a brake pedal shaft 40 or a clutch pedal shaft 47 extending outward from the upper frame 2 is supported on an upper frame 2 constituting the machine base, A steering pedal device for an agricultural work vehicle, wherein a boss of a steering pedal having a substantially linear shape is attached to an extending portion of the brake pedal shaft 40 or the clutch pedal shaft 47.