JPH0124662B2 - - Google Patents

Description

[Detailed Description of the Invention] (A) Summary A new passenger trolley is connected between the power vehicle and the loading truck of a single-gauge transport vehicle. The passenger trolley is equipped with a seat on which a person can sit, and is further equipped with a handbrake. The seat is rotatably suspended from a support on the side of the passenger vehicle. The seat is further supported from below by arcuate guide rails and guide rollers. The inclination of the seat can be adjusted in the direction of gravity, and this positional relationship can be fixed and further adjusted repeatedly.

The seat is stable because it is supported from the upper side and the bottom. The pillars on the sides give the occupants a sense of security.

(b) Technical field Single-gauge transport vehicles are installed in hilly areas such as mandarin orange orchards and are used to transport agricultural products, fertilizers, etc. There is only one rail, so it is easy to install. It has a drive mechanism with an engaged rack and pinion, so it can easily go up or down steep slopes.

A single-rail transport vehicle is made up of a power vehicle and a truck connected together. A power vehicle includes a power transmission system such as an engine, a reduction gear, and a pinion, and a braking system. The braking system includes a normal stop brake, a constant speed brake,
It often includes an emergency stop brake.

A normal stop brake applies the brakes when the brake rod collides with a hit rod placed on the side of the rail. The brake lever may also be moved by hand.

The trolley only has a running function and has no power or braking mechanism. All luggage will be transported on trolleys.

Single-track transport vehicles are not allowed to be ridden by humans. This is because it is dangerous. Also, there is no space created for people to ride.

Since there are no humans on board, the powered vehicles run unmanned from the beginning to the end of the laid rails.
At the starting point, one worker loads or unloads the cargo, releases the lock on the stop brake, and starts the engine by pulling forcefully on the engine starting wire.
Start the motor vehicle.

The transport vehicle runs unmanned on rails. At the end point (the point where the train should stop), a brake bar is placed on the ground near the rail. When the single-rail transport vehicle reaches this point, the brake rod collides with the brake rod, causing the brake rod to rotate. This activates the brakes. The transport vehicle stops.

Another worker at the end of the line unloaded the luggage and
Or put it on the vehicle, shift gears in the opposite direction, and start the engine again.

In this way, single-gauge transport vehicles generally run unmanned.

However, one worker must be on standby at each end of the rail. The number of people engaged in agricultural work is decreasing, and it is difficult to always have two people working on a single-track transport vehicle.

Therefore, the following method is used as an expedient. One person does all the work. A single-gauge transport vehicle is started at the starting point, then walked together with the transport vehicle to the terminal point, where loading and unloading work is done. In other words, 1
Human beings are constantly moving along with single-track transport vehicles.

The law stipulates that no humans are allowed to ride in single-gauge transport vehicles. However, since single-track vehicles run faster than walking speed, it is difficult to follow them. Moreover, there are many slopes, making it difficult to walk in some places.

Therefore, in reality, workers often travel on single-track transport vehicles rather than on foot.

Single-track transport vehicles were not originally designed to be ridden by humans, so they are often dangerous. You may fall and get injured. It's not necessarily safe because you're riding in a small space on the cargo platform.

The Ministry of Agriculture, Forestry and Fisheries also reportedly intends to permit passenger monorails.

In fact, there are many people who ride single-gauge transport vehicles, and they cannot do agricultural work without riding, so it is unrealistic to ban them from riding. It is said that it is prohibited to ride on a bicycle because it is dangerous, but on the contrary, it would be better to create something that is technologically perfect so that it can be ridden safely.

Since we still ride them today, we should make something that can be ridden with peace of mind.

For this reason, the Ministry of Agriculture, Forestry and Fisheries also seems to be planning to ease restrictions.

(C) Prior art and its problems Since it was forbidden for people to ride on single-gauge transport vehicles, the single-gauge transport vehicle was widely known to the public as a passenger vehicle.
None that were used exist. For this reason, there is little technical accumulation.

Although it is only an idea,
No. 22212 (released on February 19, 1977), Japanese Patent Publication No. 1977-
No. 22213 (published on February 19, 1977) connects a seated car for people to ride between the power car of a single-gauge transport vehicle and a trolley (baggage car).

In the former, the seat car and trolley are separate parts. The latter had new seats built at the front of the bogie.

Both have two independent brake systems. Even if one brake fails, the other brake can be used to stop the vehicle, which prevents the vehicle from running out of control on steep slopes. In fact, for single-gauge transport vehicles that run on steep slopes, it is extremely important to take measures to prevent them from running out of control.

Single track transport vehicles are used on sloped areas. The angle of inclination to the horizon often reaches 30°,
It can even reach 45 degrees.

The seats of these known passenger cars are fixed. The passenger car tilts according to the slope of the rail. The inclination of the seat also follows the inclination of the rail.

However, it is desirable for humans to always support their upper bodies along a vertical line, regardless of the direction of travel. Even if the rail slopes downward or upward, the seat will not follow the slope of the rail.
It is desirable that it is always approximately horizontal.

(d) Technical issues The following requirements are required for a passenger single-track transport vehicle that carries people.

(1) The vehicle must be able to stop and start by operating the vehicle.
Even if it goes out of control, it can be stopped.

(2) The passenger trolley on which the driver rides shall be equipped with an independent brake separate from the motor vehicle's braking device.

(3) When applying the brakes, due to sudden braking,
Ensure that the driver does not get injured.

(4) The driver should be able to maintain a comfortable posture when going up and down slopes, mountains, and valleys.

Problems (1) and (2) can be solved by installing a new brake on the passenger trolley. (3) can be overcome by brake selection and brake adjustment.

Problem (4) seems to have gone unnoticed until now. However, the inventor believes that this is also an important issue.

If the relationship between the seat and the wheels of a passenger trolley is fixed, the user is likely to slide forward from the seat due to gravity, especially when going downhill. On the uphill,
Since your center of gravity is shifted to the rear, you will likely feel like you are going to flip backwards.

The passenger carriage of a single-gauge transport vehicle runs on a track with many ups and downs, like a jet coaster.
However, the length of the vehicle is not as large as that of a jet coaster. Passenger trolleys are short in the front-rear direction, but rather large in the vertical direction. Because it is vertically long and unstable, there is a high possibility of it falling, especially forward or backward.

It is preferable for the seat to be horizontal, not only from a physical safety standpoint, but also psychologically.

In this way, issue (4) is an important requirement to be overcome.

(E) Configuration of the present invention The inventor came up with the idea that the seat should be able to swing around a fulcrum like a swing and be fixed at any position.

For this purpose, two pillars are provided on both sides of the passenger trolley facing upward from the frame, and the seats are suspended on the pillars. In this way, the seat can swing back and forth about the fulcrum, and the occupant's posture can always be moved in a comfortable direction. There are also pillars on the left and right sides, which gives you a sense of security.

However, since it is suspended from pillars, the pillars tend to bend under the weight. Therefore, the vehicle frame and supports must be made extremely strong.

If the pillar stands upright from the vehicle frame, there will be no problem with bending, but please make sure that the pillar does not get in the way.
The pillar is T-shaped and bends from the back to the front. Therefore, the bending moment generated at the bent portion of the strut becomes extremely large at the connection point between the vehicle frame and the strut. The pillars must be thick and heavy to prevent bending and buckling.

Therefore, a combination of a guide rail and a guide roller is provided on the bottom surface. The guide rail is in the shape of an arc centered on the fulcrum.The guide rollers can either be placed between the top and bottom of the guide rail (4 wheels), or the guide rail can be placed between the top and bottom of the guide rail (two wheels). There is. The guide rail and guide roller are each fixed to either the vehicle frame or the seat.

The load of the seat is distributed and applied to the vehicle frame by the support columns, guide rails, and guide rollers.

If left as is, it would simply swing around the fulcrum, so a rack along an arc is provided below the seat, and the fixed claw engages with the rack.

When you step on the seat adjustment pedal, the fixing claw releases from the rack and the seat becomes free. When the seat adjustment pedal is released, the fixing claws will easily engage again and the seat will be fixed.

The bogie of the single-rail transport vehicle of the present invention includes (1) upper wheels and lower wheels that sandwich the rails from above and below, (2) a vehicle frame that rotatably supports the upper and lower wheels, and (3) a vehicle chassis. (4) a seat that is rotatably suspended from the pillar by a pin; (5) a seat that is formed in an arc shape around the pin and that is connected to the vehicle frame or the seat. (6) A guide roller that can roll on the guide rail but does not come off the guide rail and is connected to the inside of the vehicle frame or seat that is not fixed to the guide rail; (7) (8) A fixed claw that can be engaged with or disengaged from the rack provided on the vehicle frame; (9) A seat that engages with or disengages the fixed claw. (10) a pinion that is fixed to the lower axle of the vehicle chassis and easily meshes with it; (11) an emergency brake that includes an emergency brake drum that is coaxial with the pinion or provided via a deceleration/acceleration mechanism; (12) It consists of a handbrake installed on the seat to activate the emergency brake.

(f) Embodiment FIG. 1 is a side view of a single-rail transport vehicle including a single-rail passenger truck according to an embodiment of the present invention, and FIG. 2 is a plan view.

The single-rail transport vehicle includes a power vehicle 1, a passenger trolley 2,
It is formed by connecting the truck 3. The single rail that supports these consists of a rail 4 with a rectangular cross section, a rack 5 welded to the side surface, and a support 6 that supports the rail 4 on the ground.

The power vehicle 1 is for towing the entire transport vehicle.

The power vehicle 1 has an upper wheel 8 and a lower wheel 9 attached via an axle to a vehicle body 7 that may be made of aluminum alloy or cast iron. The power vehicle 1 further includes a power source such as a fuel tank 10 and an engine 11. Power is transmitted from the centrifugal clutch 12, pulleys, V-belts, etc. to the drive pinion 18 through a reduction gear train.

By switching the gear train, it is possible to move forward or backward. This is done by means of the transmission switching lever 13.

By operating the stop/start lever 14, the stop brake 16 is activated or released.

Constant speed brake 15 provided on the side of the vehicle body 7
This prevents the vehicle from driving out of control due to excessive speed when going downhill. The stop brake 16 is the stop/start lever 1
4, the power transmission mechanism connected to the pinion 18 can be stopped.

The emergency stop brake 17 is activated to automatically stop the power vehicle in the event of an abnormality in which the vehicle speeds too high when descending a slope.

In this way, the motor vehicle 1 includes a power mechanism and a braking mechanism. The braking mechanism consists of three brakes: a stop brake, an emergency stop brake, and a constant speed brake.

Such a motor vehicle has been manufactured by the present inventor for some time.

The cart 3 is used to carry luggage. The power vehicle 1, the passenger truck 2, and the loading truck 3 are connected to connecting rods 19, 1
Connected by 9.

The truck 3 has a wide loading platform 20 supported by one or two racks 21.

The vehicle frame 21 has two upper wheels 22 and two lower wheels 23 attached to a frame made of aluminum alloy, cast iron, or the like via axles. The vehicle rack 21 is the loading platform 2
0 so that it can be turned left, right, up and down.
Even if the rail 4 is curved up and down or left and right, the carriage 2
1 can turn around and follow the curve of the rail.

Luggage fences 24, 24 are erected at the front and rear of the cart 3. Fences can be erected on the sides if necessary.

FIG. 3 is a rear view of the passenger trolley 2, and FIG. 4 is an enlarged side view.

The passenger trolley 2 is supported by a carriage 25 with respect to the rails 4. The vehicle frame 25 is made of aluminum, aluminum alloy, cast iron, or the like.

The vehicle frame 25 is rotatably provided with an upper wheel 26 and a lower wheel 27 that sandwich the rail 4 from above and below via an axle. On one of the lower axles there is an emergency brake 28
and pinion 2 connected to this and meshing with rack 5.
9 is provided. When the emergency brake 28 is activated, the pinion 29 is stopped and the passenger trolley 2 is stopped.

A bottom plate 30' and pillars 30, 30 integrally formed on the sides of the bottom plate 30' are provided above the vehicle frame 25.
There are pins 31, 31 on the upper left and right sides of the support column, and the seat 32 is suspended from the pins 31 so as to be swingable.
The seat 32 also has a backrest and a horizontal board. The seat is also supported from the bottom. An arcuate guide rail 44 centered on the pin 31 is fixed immediately above the vehicle frame 25. Four guide rollers 45 are provided at the bottom of the seat 32 and roll on a guide rail 44 up and down the front and back. The combination of guide rollers 45 and guide rails 44 causes seat 32 to rotate around pin 31. The load applied to the seat is distributed to the support columns and guide rails, and then transmitted to the vehicle frame. seat 3
A pull-up hand brake lever 33 is provided at the lower side of No. 2. A handbrake wire cable 34 extends from the handbrake lever 33 and is connected to the emergency brake 28.

A ratchet 35 is fixed around the fulcrum of the handbrake lever 33. When the handbrake lever 33 is pulled up, it is fixed in that position by the ratchet 35. Lever button 33'
When is pressed, the handbrake lever 33 is released from the ratchet and can be returned to its original position. Limit switch 3 close to handbrake lever 33
6 is provided. When lever 33 is pulled up, limit switch 36 is actuated by the lever. The on/off signal from the switch 36 is transmitted through an engine stop cord 37 to stop the engine 11 of the power vehicle 1. After the engine stops, the emergency brake 28 starts to work, the pinion 29 stops, and a braking force is generated on the passenger trolley 2. In this way, the entire transport vehicle is stopped. The seat 32 can swing back and forth around the pin 31. The height of the seat board is adjusted so that the center of gravity when a person sits on the seat 32 is directly below the pin 31.
It has a backrest etc. Since it is dangerous for the seat to constantly swing, a separate fixing mechanism is provided.

A seat adjustment pedal 39 is provided at the lower front of the passenger trolley 2 at a position where it can be stepped on with the foot.

On the other hand, an arcuate rack 41 having a pin 31 at its center is fixed to the lower surface of the seat 32.

A fixed claw 42 that can be raised and lowered is provided below the rack 41. Fixed claw 42 and seat adjustment pedal 39
and are connected by a seat adjustment wire cable 40.

When the seat adjustment pedal 39 is not depressed, the fixed pawl 42 is raised and engaged with the rack 41. The angle of inclination of the seat 32 with respect to the vehicle frame 25 and the support column 30 is fixed.

When the seat adjustment pedal 39 is stepped on, the fixing claw 42
is lowered and the rack 41 is released. The seat 32 swings freely relative to the column 30. Since the center of gravity, including the human body, is placed directly below the pin 31, if the occupant's posture is correct, the seat 32 will move due to gravity, and the human's upper body will remain in the same vertical direction. Change to the facing position. At this point, release the pedal 39. The fixed claw 42 engages with the rack 41. In this position the seat 32 is fixed again.

The seat inclination angle can be adjusted frequently according to the vertical movement of the rail.

(G) Structure of the vehicle frame The structure of the vehicle frame of the passenger trolley 2 will be explained with reference to FIG. This is similar to the structure of a vehicle frame such as a cart or a power vehicle, and consists of an upper wheel and a lower wheel, with a rail sandwiched between them.

In the case of a cart, two upper wheels and two lower wheels sandwich the rails. The axle is fixed, and bearings are installed between the axle and the wheel.

In the case of a powered vehicle, there are two upper and two wheels,
One of the lower axles becomes the drive shaft. This axle has
The drive pinion is fixed and the lower wheel, which has become an idler, is attached via a bearing.

In this respect, the chassis of a passenger trolley is the same as the chassis of a power vehicle. A pinion is fixed to one of the lower axles. This is not for driving, but for braking.

The vehicle frame 25 has an upper axle 51 passed above both sides of the frame 50, and is fixed at both ends with bolts 52 and 53. The upper wheel 26 is attached to the middle of the upper axle 51 via a bearing 54 .

Positioning is done by a collar fitted onto the axle.

The front axle of the lower axle does not appear in this diagram. This is a shaft that is cantilevered into the frame.
A lower wheel is provided via a bearing. The lower axle is supported on a cantilever by the support 6 that supports the rail 4.
This is because the rails are connected using a joining fitting, and the sides of the rails must be open.

An axle 60 at the rear of the lower axle is rotatably supported by bearings 61 and 62 with respect to the frame 50.

A lower wheel 27 is attached to the end of the lower axle 60 on the rail side.
is provided via a bearing 63, and is removed by a bolt 64.

An emergency brake drum 65 is inserted into the outer end of the lower axle 60 via a key, and the washer 6
6. It is fixed with bolts 67.

An emergency brake shoe 68 faces the inner peripheral surface of the emergency brake drum 65 with a slight gap therebetween.

When the occupant pulls the handbrake lever 33,
A tensile force is transmitted by the wire cable 34 and the emergency brake shoe 68 expands in diameter. The emergency brake shoe 68 contacts the inner peripheral surface of the brake drum 65 and stops the brake drum 65.

Since the pinion 29 and the emergency brake drum 65 were rotating together via the lower axle shaft 60, when the brake drum 65 stops, the pinion 29 also stops. Since the pinion 29 meshes with the rack 5 on the side of the rail 4, the passenger trolley 2 is stopped.

In this example, the pinion 29 and the emergency brake drum 65 are coaxially connected. However, it is sufficient that the two are connected to each other, and there is no problem even if a deceleration or speed increase mechanism is interposed therebetween.

Although a dual-off user brake is used as the emergency brake 28 in this example, other brakes may be used.

(H) Effects According to the present invention, (1) Conventionally, it was often dangerous for people to ride unattended on single-rail transport vehicles that had little room for people to ride. According to this invention, since a passenger trolley is connected to a single-gauge transport vehicle, agricultural work can be carried out safely and efficiently. There are seats, so
Less fatigue.

(2) Since the passenger trolley is also equipped with a brake, the passenger can easily stop the vehicle. If the truck 3 is also provided with an emergency brake 69, safety will be further improved.

(3) The seat's longitudinal inclination is adjusted according to the inclination of the rails, ensuring that the human's upper body is always maintained at or close to vertical, providing a comfortable ride.

(4) Finally, swing style (hanging from a support)
Think about the ease of movement of the guide roller type. The center of gravity G is below the center point O. The rail is θ
Assume that the direction of the gravity W acting on the center of gravity G is tilted by θ due to the tilt.

FIG. 6 is a diagram for explaining the mechanics of a swing type.

If the distance between the center (fulcrum pin) O and the center of gravity G is l, the normal force N acting on point O is N = Wcosθ (1) The rotational moment M acting on point O is M = lWsinθ (2) At the fulcrum, N acts as friction, and M is
Acts as a force to rotate the seat relative to the fulcrum pin. Since the ease of movement U can be defined by M/N, it is given by U=ltanθ (3). If the distance of OG=l is large,
In the case of a swing type, it can rotate easily and always follow the direction of gravity.

FIG. 7 is a schematic diagram showing the mechanics of the guide rail and guide roller type. Let L be the distance between the center point O (this is not an actual object but a point in space) and the guide rail XY. Assume that there are guide rollers at two points A and B on the guide rail. Center point O, 2 from center of gravity G
Let the angles looking into points A and B be 2α and 2β.

Suppose that the direction of gravity is tilted by θ.

From the law of sine, rollers A, B, GA, GB
The forces P _a and P _b acting in the directions are P _a = Wsin (θ + β) / sin2β (4) P _b = -Wsin (θ - β) / sin2β (5).

The vertical force N _a perpendicular to the rail and the horizontal force S _a parallel to the rail acting on roller A are OA and
Since the angle formed by AG is (β-α), N _a =P _a cos(β-α) (6) S _a =P _a sin(β-α) (7).

The vertical force N _b and horizontal force S _b acting on roller B are as follows: N _b =P _b cos(β-α) (8) S _a =-P _b sin(β-α) (9). There is a horizontal force exchange between rollers AB, but since this is inward, this disappears when considered as a whole.

Overall, the ratio of vertical force to horizontal force is given by tan(β−α)tanθcotβ (10). This indicates the ratio of the force that causes the roller to rotate and the frictional force that attempts to stop the roller. When the effective radius of the roller is r, the ease of movement V is given by: V=rtan(β-α)tanθcotβ (11).

Equations (3) and (11) express the ease of movement of the swing type and guide roller type. Naturally, this is proportional to the sine of the tilt angle θ. These coefficients are the problem.

Taking the ratio of equations (3) and (11) and assuming that α and β are sufficiently smaller than 1, the ratio of ease of movement is U (swing type) / V (guide rail type) L
/r(12). Depending on the values of r and L, this may be about 10 times. It turns out that the swing style is much easier to move.

Since the present invention uses both the swing type and the guide rail type, the ease of movement of the seat is smoother than when only the guide rail is used.

[Brief explanation of drawings]

FIG. 1 is a side view of a single-rail transport vehicle to which a passenger trolley is connected according to an embodiment of the present invention. Figure 2 is a plan view of the same thing. Figure 3 is a rear view of the passenger trolley only. Figure 4 is an enlarged side view of only the passenger trolley. FIG. 5 is a sectional view of the carriage of the passenger trolley. FIG. 6 is an explanatory diagram for considering the action of force on a structure suspended from pillars. 7th
The figure is an explanatory diagram for considering the effect of force on a structure supported from below by guide rails. 1...Power car, 2...Passenger trolley, 3...Cart, 4...Rail, 5...Rack, 6...Strut,
7...Vehicle body, 8...Upper wheel, 9...Lower wheel, 10
... Fuel tank, 11 ... Engine, 12 ... Centrifugal clutch, 13 ... Mission switching lever, 1
4...Stop/start lever, 15...Constant speed brake, 1
6... Stop brake, 17... Emergency stop brake, 18... Drive pinion, 19... Connecting rod, 2
0... Loading platform, 21... Vehicle frame, 22... Upper wheel, 2
3... Lower wheel, 24... Luggage fence, 25... Vehicle rack,
26... Upper wheel, 27... Lower wheel, 28... Emergency brake, 29... Pinion, 30... Support, 3
1...Pin, 32...Seat, 33...Handbrake lever, 34...Handbrake wire cable, 35...Ratchet, 36...Limit switch, 37...Engine stop cord,
38... Driver's cab handrail, 39... Seat adjustment pedal,
40...Wire cable for seat adjustment, 41...Rack, 42...Fixing claw, 44...Guide rail,
45... Guide roller, 50... Frame, 51
... Upper axle, 52, 53 ... Bolt, 54 ... Bearing, 62 ... Bearing, 63 ... Bearing, 64 ... Bolt, 65 ... Emergency brake drum, 66 ... Washer, 67 ... Bolt, 68 ...Emergency brake show, 69...Cargo truck emergency brake.

Claims (1)

[Claims] 1 Upper wheels 26 and lower wheels 27 that sandwich the rail 4 from above and below, a vehicle frame 25 that rotatably supports the upper and lower wheels 26 and 27, and left and right columns provided above the vehicle frame 25 and extending upward. 30, 30, a seat 32 rotatably suspended from the support column 30 by a pin 31, and a guide rail 44 formed in an arc shape around the pin 31 and fixed to the vehicle frame 25 or the seat 32. , the vehicle frame 25 has a structure that allows it to roll on the guide rail 44 and not detach from the guide rail 44.
or guide rollers 45, 45, which are coupled to the seat 32 that is not fixed to the guide rail 44;
...and the seat 32 in an arc shape centered on the pin 31.
a rack 41 provided at the bottom of the vehicle frame 25, a fixed claw 42 provided on the vehicle frame 25 that can engage with or disengage from the rack 41, a seat adjustment pedal 39 that engages or disengages the fixed claw 42, and a seat adjustment pedal 39 that engages with or disengages the fixed claw 42; A pinion 29 that is fixed to the lower axle and meshes with the rack 5;
An emergency brake 28 comprising an emergency brake drum 65 provided coaxially with or via a deceleration/acceleration mechanism.
and a hand brake 33 provided on the seat for operating an emergency brake 28.