JPS6239947Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a vehicle clutch operating device. Conventionally, a manual lever is integrally provided on a pair of left and right side clutch petals protruding above the step platform, and from the dismounting position , there was one in which the vehicle was controlled using this lever. However, with the control levers attached to the side clutch pedals, when stopping the vehicle, a pair of left and right levers must be operated at the same time, which not only makes it difficult to stop accurately in a fixed position, but also makes it difficult to maintain the vehicle in a stopped state. When the vehicle is parked in the vehicle, it is necessary to lock each control lever separately at the side clutch ``off'' position, and the locking structure is complex and the operation is troublesome. There was a drawback that the side clutch could not be held in the "disengaged" state.

This invention takes the following technical measures for the purpose of solving the above-mentioned drawbacks.

That is, a step stand 12 stretched over the front lower part of the operator's seat 19 is located on the front end side of the passenger towing vehicle body 2, and its base is pivoted below the step stand 12, and its tip protrudes above the step stand 12. A main clutch lever 34 is provided, and this main clutch lever 34
A petal 36 that is pivotally attached via a pin 38 and a locking fitting 40 that rotates below the petal as the petal 36 is rotated are provided at the upper and lower parts of the main clutch lever 34. is used as a grip part 34a that allows the main clutch to be turned on and off from the front dismounting position of the passenger towing vehicle body 2, and the locking member 40 is engaged under the step base 12 and is removable. The operating device for a vehicle clutch is provided with an operating lever 43 on the petal 36, which engages the locking member 40 with the locking member 42 on the upper side of the step base 12 and allows the lever 43 to be released.

With this configuration, the pilot can hold the main clutch in the "engaged", "disengaged" and "disengaged" states with his/her foot while sitting in the pilot's seat, and can also dismount the main clutch while it is in the "disengaged" state. The main clutch can be freely held in the ``on'', ``off'', and ``off'' states from the front side of the passenger towing vehicle body, and these operations are extremely easy and the structure is linked to a single main clutch. It is possible to achieve the effect of making it simple because it can be configured to do so.

One embodiment of this invention will be described in detail based on the drawings. Reference numeral 1 indicates a passenger towing vehicle. The towing vehicle body 2 has a cylindrical shape with a square cross section, and has a front transmission case 3 attached to its front end and a rear transmission case 4 attached to its rear end. Reference numeral 5 denotes an engine, which is located in front of the rear transmission case 4 and mounted on the vehicle body 2. Reference numeral 6 denotes a hydraulic pump, which is integrally provided at the rear upper part of the rear transmission case 4.

Reference numeral 7 denotes a chain case, the base of which is attached to the tip of a boss that protrudes on both left and right sides of the rear transmission case 4, and the rear wheels 8, 8 attached to the tip that extends rearward and downward.
The rear wheels 8, 8 are provided to be rotated by transmission.

9 is the front wheel, and the front transmission case 3
Freely rotatable vertical cases 11, 11 are provided at the tips of the horizontal cases 10, 10 fixed to the left and right sides of the apparatus, and are pivoted to the vertical cases 11, 11.

Reference numeral 12 denotes a step stand, which is stretched over the front side of the towing vehicle body 2 and supported on the front transmission case 3 and side cases 10, 10.

Reference numeral 13 denotes a steering post, which is erected at the front left and right intermediate position of the step stand 12, on which the steering wheel 14 is supported. , 9 is possible.

Reference numeral 15 is a support column, which is connected to the rear transmission case 4.
A frame body 17 is provided between the support column 15 and the rear end of the step base 12, and the frame body 17 has a shape in side view and a shape in plan view. A cover 18 is stretched.

Reference numeral 19 denotes a pilot's seat, which is supported on the upper part of the engine cover 18. 21 is a planting clutch lever, 22 is a hydraulic operating lever, 23 is a gear shift operating lever, and 24 is a throttle lever. Reference numeral 25 denotes a spare seedling mounting table, which is located on both the left and right sides of the control seat 19;
It is attached to the frame 17 via a support rod. 26 indicates a fuel tank.

27 is an output pulley of the engine 5, 28 is an input pulley fixed to an input shaft projecting laterally of the rear transmission case 4, and 29 is an input pulley of the hydraulic pump 6.

30 is a main clutch, and a belt 32 is loosely wound between the output pulley 27 and the input pulley 28.
The tension pulley 3 switches between a state where it is tensed and transmits power to the input pulley 28 (clutch engaged state) and a state where it is relaxed and does not transmit power (clutch disengaged state).
1. 33 indicates a tension arm.

34 is a main clutch lever, the base of which is pivotally attached to the side surface of the front transmission case 3 below the step base 12, the distal end of which protrudes from a hole 35 drilled in the step base 12, and the distal end of which is provided with a lever for clutch operation. A grip portion 34a is attached for use when holding the camera.
This lever 34 and the tension arm 33 are connected by a rod 54, so that the main clutch 30 can be turned on and off by moving the lever back and forth. Reference numeral 54 designates a spring for restoring the lever 34 upwardly.

36 is a petal, and a U-shaped bracket 3 is integrally fixed to the upper and lower intermediate portions of the main clutch lever 34 so as to cover the lever 34 from the front side.
7 with a pin 38, and a coil spring 39 is interposed between the petal 36 and a bracket 37, so that the upper end side of the petal 36 is biased forward. Reference numeral 40 denotes a fishhook-shaped locking metal fitting, which is attached to the pin 38, with a coil spring 41 interposed between the locking metal fitting 40 and the petal 36, so that the lower end locking portion 40a of the locking metal fitting 40 is fixed to the front side. The upper end side contacts the back surface of the petal 36, and when the front side of the petal 36 is stepped on, the coil spring 41
The lower end locking portion 40a is provided so as to be rotated rearward against the force. Reference numeral 42 denotes a locking body, which is fixed to the bottom end side of the step base 12 and is connected to the locking metal fitting 4.
The locking part 40a of 0 is provided so that it can be locked and removed.
2. It has a structure that is fixed to the bottom.

Reference numeral 43 denotes an operating lever, the base of which is fixed to the back surface of the petal 36 and can be operated from the front side of the step base 12 so that the locking fitting 40 is attached to the locking body 42.
It is attached so that it can be removed.

44 is a rice transplanting device which is an example of a working machine, in which a seedling tank 46 is supported on the upper part of a planting transmission case 45 so that it can be moved back and forth from side to side, a seedling rod 47 is provided at the lower part of the rear end, and a central float 48a and side parts are provided at the lower part. part float 4
8b is attached so that the front part can move freely up and down.

49 is an elevating link mechanism, which includes a single upper link 49a made of a spring material, a pair of left and right lower links 49b,
The base side of each of 49b is connected to the strut 15 of the towing vehicle body 2.
The rear end is pivotally connected to the bracket 16 of the towing vehicle body 2 and the upper link 49a by a hitch metal fitting 50.
A hydraulic cylinder device 51 is interposed between the two and is configured to move up and down by this hydraulic cylinder device 51. The hitch metal fitting 50 is attached to the rice transplanting device 44 via a rolling shaft 52.

Reference numeral 53 indicates a drive shaft that transmits power from the rear transmission case 4 on the towing vehicle body 2 side to the planting transmission case 45 of the rice transplanting device 44.

Next, to explain the operation of the above example, first, when planting seedlings, seedlings are placed on the preliminary seedling mounting table 25 and the seedling tank 46 of the rice transplanting device 44, respectively, and the operator holds the petal 36. When force is applied to the rear end side and the step is strongly depressed, the locking metal fitting 40 intervenes below the step base 12 while remaining in the state shown by the solid line in FIG. 3, and its locking portion 40a engages with the locking body 42. . At this time, the main clutch 30 is released via the rod 54.
It will be maintained in this state.

In this state, the engine 5 is operated so that power is transmitted to each part, and the pedal 36 is gradually released while continuing to depress the front side of the pedal 36. Then, the tension arm 33 is restored from the state shown by the imaginary line in FIG. is transmitted and rotated, and the towing vehicle body 1 is propelled. On the other hand, the rice transplanting device 44 side is driven by a drive shaft 53, and a seedling rod 47 moves back and forth from side to side to divide seedlings into individual plants from a seedling tank 46 and separate them into central floats 48a and side floats 48b. Plant on the leveled field surface.

In this way, during the seedling planting work, if the number of seedlings in the seedling tank 46 decreases and the seedling tank 46 is to be replenished with the spare seedlings placed on the preliminary seedling mounting table 25, the operator If you press down heavily while applying force to the rear end side of the petal 36, the locking metal 4 will close as described above.
The locking portion 40a of 0 engages with the locking body 42, and the main clutch 30 is held in the disengaged state. In this state, after supplying the seedlings to the seedling tank 46, depress the front part of the petal 36, remove the locking part 40a from the locking body 42, release the pedal, and turn the main clutch 30 into the "on" position to begin the seedling planting work. Re-explain.

Next, when this riding rice transplanter is loaded onto or unloaded from the truck bed, the rice transplanting device 44 is moved upward by the hydraulic cylinder device 51, and the pedal 36 is depressed in the same manner as described above. The operator then moves the main clutch 30 to the "on" state and operates the gear shift operating lever 23 to shift to the reverse position. When the locking part 40a of the locking metal fitting 40 is released from the locking body 42 by pressing downward, and the pressing is continued, the main clutch 30 is switched to "on", the towing vehicle body 1 moves backward, and You can easily load it onto the bed of a truck by handing it over and moving backwards on the footboard while dismounting it.

[Brief explanation of the drawing]

The figures show one embodiment of this invention: Fig. 1 is a side view, Fig. 2 is a partially cutaway plan view, Fig. 3 is a side view of the main part, and Fig. 4 is its side view. It is a front view. Symbols in the figure: 2 is a passenger towing vehicle body, 12 is a step base, 19 is a control seat, 34 is a main clutch lever,
34a is a grip part, 36 is a petal, 38 is a pin, 4
0 is a locking metal fitting, 42 is a locking body, and 43 is an operating lever.

Claims (1)

[Scope of utility model registration request] A step stand 12 extending over the front lower part of the operator's seat 19 is located at the front end of the passenger towing vehicle body 2, and a main body whose base is pivotally attached below the step stand 12 and whose tip protrudes above the step stand 12 is provided. A clutch lever 34 is provided, and a petal 36 pivotally connected via a pin 38 is provided at the upper and lower midpoints of the main clutch lever 34.
and a locking fitting 40 that rotates below the petal as the petal 36 is rotated. A gripping part 34a that can be cut is provided, and a removable locking body 42 is provided on which the locking fitting 40 is engaged under the step base 12, and the petal 36 is provided with a removable locking body 42 that engages the locking member 40 at the bottom of the step base 12. An operating device for a vehicle clutch, which is provided with an operating lever 43 that engages the locking metal fitting 40 to a body 42 and can be disengaged.