JPH02150571A - Travel interlock for mobile vehicle - Google Patents

Abstract

PURPOSE:To make operation simple and easy enough as well as to avoid any hazard by installing a shift interlocking mechanism which operates to shift a belt transmission mechanism to the speed-up side from a shift neutral position with pedal operation after the initial-motion operation of a forward or backward pedal. CONSTITUTION:In front position of a forward pedal 3 and a backward pedal 4 of a car body 10, there is provided with a rocker arm 37 of a shift interlocking mechanism 7 supporting a central part in the vertical direction. In addition, in an inclined cam part 21 of a belt shifting mechanism 2, there is provided with a shaft arm 38 which is projected toward the right and operates this shifting mechanism 2 from a shift neutral position to the speed-up side through front rotation via this inclined cam 21. Then, both upper ends of the shift arm 38 and the rocker arm 37 are connected by an interlocking rod 39 free of bending. Moreover, a connecting rod 41 with a connecting pin 40 being inserted into each front end of long holes 30, 30 of two cam plates 31, 31 is connected to a lower end of this rocker arm 37 by means of pin connection.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a traveling interlock device for a moving vehicle.

Prior Art and Problems to be Solved by the Invention A switching mechanism that switches the running direction between forward and reverse, a belt transmission mechanism that continuously changes the vehicle speed, and a neutral shift mechanism that can be operated by foot operation. In a mobile vehicle equipped with a speed change pedal that operates the speed change from the position to the speed increase side, the front
The switching operation of the reverse switching mechanism is performed by providing a dedicated operating tool such as a switching lever or switching pedal, but it is time-consuming and cumbersome to perform this operation separately from the operation of the gear shift pedal. However, there is a risk that erroneous operations such as switching to forward movement with the switching lever may occur, which may be dangerous.

Means for Solving the Problems This invention provides a switching mechanism (1) for switching the running direction between forward and reverse, and a belt transmission mechanism (2) for continuously variable vehicle speed.
), and both pedals (3) and (4) for forward and reverse operation, in which both pedals (3) (
4) and the switching mechanism (1), the forward pedal (
3) or by the initial operation of the reverse pedal (4), the switching mechanism (
1) to the forward or reverse side.
)(6), and both pedals (31(4)
and the belt transmission mechanism (2), the belt transmission mechanism (2) can be increased from the neutral position by foot operation after the initial operation of the forward pedal (3) or the reverse pedal (4). A traveling interlocking device for a moving vehicle is characterized in that it is provided with a speed change interlocking mechanism (7) for performing a speed change operation on the speed side.

Effect of the invention When the forward pedal (3) or the reverse pedal (4) is operated with the initial foot pedal, the switching mechanism (1) is switched to the forward side or the reverse side via the switching interlocking mechanism (5) or (6). When the forward pedal (3) or the reverse pedal (4) is further depressed, the belt transmission mechanism (2) changes from the neutral gear position to the forward speed increasing side or reverse speed through the speed change interlocking mechanism (7). The gear is shifted to the speed increasing side.

Effects of the Invention Due to these effects, unlike the problem described above, instead of using a switching lever or the like to switch between forward and reverse directions separately from the operation of the gear change pedal, the forward pedal (3) or the reverse pedal (3) is used. Since it is possible to switch between forward and reverse by simply operating 4), the operation is simple and easy, and there is no risk of switching to reverse while moving forward by operating the forward pedal (3), for example. It is not dangerous.

Embodiment In addition, when rotating, a pair of left and right front shafts (91 (
A pair of left and right rear wheels Cl1lCI11 are mounted on the rear end of the vehicle body (1r5) in which 91 is mounted, and these rear axles (+II
A transmission case (12
1 will be provided.

On the front part of the vehicle body (I(2)), a bonnet +1!11 is installed to cover the output shaft (prime motor 04) with the output shaft (1 spring protruding downward), and this bonnet ( +5) A steering handle (16) for steering the left and right front wheels (9) is provided at the rear end of the vehicle body (1ω
At the upper rear part, a fender (1η) is provided to cover the upper and inner sides of the left and right rear axles (Ill), and above this fender (1η, a passenger's cockpit (1[1 is provided) .

The bonnet of the vehicle body (1) (near the rear end of the bonnet)
Upper and lower pulley IIs that can change the belt winding diameter
(21) and these pulleys (+9) (slope cam portion I21 for variably operating 21). The front belt (to) is wound around the drive pulley (2) provided on the drive pulley (13), and the upper and lower two-stage drive pulley (2) is provided at the intermediate portion between the transmission mechanism (2) and the transmission case (121). An intermediate belt I29 is wound around the lower pulley (to) of the pulley 124] and the lower pulley I21 of the transmission mechanism (2), and an intermediate belt I29 is wound between the upper pulley C2 and the transmission case (1 series). An input pulley (
Wrap the rear belt (2I) around Shuto.

In front of the transmission mechanism (2) at the right end of the vehicle body (1ff1), a left forward pedal (3) and a right reverse pedal (4) are pivotally supported, and both pedals (31+4) have boss portions. On the lower side, there are four parts C! (end) at the upper part of the rear side, an arcuate cam part centered on the center of the boss extending downward from this recessed part Cgl, and an arcuate elongated hole 0Φ along this arcuate cam part. A switching interlocking mechanism (5) +81 cam plates OυOυ are provided respectively, and on the rear side of these cam plates OυC311, there are provided a switching interlocking mechanism (5) which is pivotally supported by the vehicle body (1 [Il) and fitted into the recess G! Arms C33 and C33 each having a pin (goods) are provided, and on the upper side of the transmission case (1), when rotated forward, the switching mechanism (11) is set to the forward side, and when rotated backward, the switching mechanism fil is set to the reverse side. A switching arm C34) that can be used is provided,
Between this switching arm (B) and the arm 01 on the forward pedal (3) side, there is a cam plate 0 of the forward pedal (3).
An interlocking wire c (- is provided in the switching interlocking mechanism (5) that rotates the switching arm (goods) forward by the transition from the recessed part of the pin gloss to the circular arc cam part with the rotation of υ, and the switching arm (To) and arm 01 on the reverse pedal (4) side
There is a recess (291) of the pin (to) that rotates the switching arm (b) backward as the cam plate 0υ of the reverse pedal (4) rotates. An interlocking wire OQ of the interlocking mechanism (6) is provided.

At a position in front of both pedals (31(4)) of the vehicle body (10), there is a speed change interlocking mechanism (7) pivotally supported at the center in the vertical direction.
A swing arm 0η is provided, and the belt transmission mechanism (2)
The slope cam portion I21) includes a speed change arm (toward) that protrudes toward the right and rotates forward to operate the speed change mechanism (2) from the neutral speed change position to the speed increasing side via the slope cam portion +211. The transmission arm (to) and the upper end of the swing arm (b) are connected by an interlocking rod (to) that can be bent in the vertical direction, and the lower end of the swing arm (b) is connected to the upper end of the swing arm (b). The long hole C3l (the connecting rod 01 having the connecting pin 60 inserted into the front end of the cam plate 31) of both the cam plates Oυ0υ is connected by a pin.

Next, the effect will be explained. When the forward pedal (3) is first operated by the foot, the pin or cam plate Gυ that had been fitted into the recess f291 due to the rotation of the forward pedal (3) cam plate Oυ.
In order to move to the arcuate cam part, rotate the switching arm forward via arm C33 and interlocking wire CJQ,
Move the switching mechanism (1) from the neutral position to the forward side.

Next, when the forward pedal (3) is continued to be stepped on, the cam plate 0υ long hole Ol is rotated backwards, and the speed is changed via the connecting pin 00, the connecting rod 01), the swinging arm, and the interlocking rod (to). In order to rotate the arm (to) forward, the gear change arm (to) is connected to the slope cam portion G! 1), the belt transmission mechanism (2) is operated to the speed increasing side, and the front belt (2), which is transmitted via the drive pulley (2δ), is
3 is the pulley (19) of the transmission mechanism (2) O! [),
Intermediate belt C9, two-pronged pulley! The power is transmitted to the input pulley (27) via @t2@ and the rear belt shaft, and from the input pulley (output) to the input shaft +28, the transmission case (1), and the left and right rear shafts ( Il
l (Speed is increased to Ill. At this time, even if the cam plate C (+1) rotates, the switching mechanism (1) does not move forward because the pin (to) is located at the arcuate cam part of the cam plate 0υ. In addition, the reverse pedal (4) maintains an unoperated posture because the connecting pin (T) only moves within the elongated hole 00 of the reverse side cam plate C313.

When the foot operation of the forward pedal (3) is released, the forward rotation of the cam plate 0υ causes the speed to change via the connecting pin (A), the connecting rod I11, the swinging arm cJ force, and the interlocking rod (To). In order to rotate the arm 08) backward, the transmission arm 08) operates the belt transmission mechanism (2) to the deceleration side, and then the arm <33. The switching arm (to) is rotated backward via C39 to restore the switching mechanism (1) from the forward side to the neutral position.

Next, when the reverse pedal (4) is operated with the initial foot pedal operation, the pin (goods) that had been fitted into the recess (c) as the reverse pedal (4) cam plate OD rotates, moves to the arcuate cam part of the cam plate 0υ. In order to shift to , the switching arm (to) is rotated backward via the arm o3 and the interlocking wire clQ, and the switching mechanism (1) is moved from the neutral position to the reverse side. Note that the subsequent operations are the same as those for operating the forward pedal [3] described above, and will therefore be omitted.

5 to 8 show another embodiment, in which the vehicle body (In
) In front of the transmission mechanism (2) at the right end, there is a forward and reverse pedal with an arm protruding downward.
3 is pivotally supported, and the slope cam portion I21) of the belt transmission mechanism (2) has a transmission arm 0 which protrudes to the right to actuate the transmission mechanism (2) to increase speed by rotating backward. In addition, on the upper side of the transmission case (17J), there is a switching arm 0!9 that rotates backward to move the switching mechanism (1) to the forward side and rotates forward to move the switch mechanism (1) to the reverse side. To protrude.

Also, the right end of this switching arm (g) and the pedal (g)
An interlocking rod (Ae
The front and rear ends of the interlocking rod 0e are connected with pins, respectively, with the interlocking rod 0e facing forward. An engagement protrusion (main) is provided to protrude upward, and an engagement protrusion (to) for reversing having an abutment surface portion at the lower end is provided downward at a position below the speed change arm θa of the interlocking rod 0e. The engagement protrusion (4) protrudes toward the front side of the vehicle body (1ω), and the engagement protrusion (4) protrudes from the front side when the engagement protrusion (4) moves forward.
A swing arm (to) which is pressed against the contact surface of the shift arm OID and rotates the shift arm OID rearward is pivotally supported.

In addition, FIG. 8 shows the pin connecting portion between the interlocking rod 0e and the switching arm 09, and when the switching arm 0 is located at the forward side of backward rotation or the backward movement side of forward rotation,
Furthermore, even if the interlocking rod 0e moves backward or forward with the speed change, a pair of front and rear spring diagrams are provided for this switching arm C9 to absorb the extra movement.

[Brief explanation of the drawing]

The figures show an embodiment of the invention, and Figure 1 is a side view;
Figure 2 is a partial plan view, Figure 3 is a partial slope view, Figure 4 is a partial side view, Figure 5 is a partial side view of another embodiment, and Figure 6 is a partial side view. The plan view, FIG. 7, and FIG. 8 are respectively partial perspective views. In the figure, (1) is a switching mechanism, (2) is a belt transmission mechanism, (3) and (4) are both forward and reverse pedals, (51 (61)
(7) indicates a switching interlocking mechanism, and (7) indicates a speed change interlocking mechanism.

Claims (1)

[Claims] A switching mechanism (1) that switches the running direction between forward and reverse, a belt transmission mechanism (2) that continuously changes the vehicle speed, and both pedals (3) and (4) for forward and reverse operation when operated by foot. In a mobile vehicle having a switch mechanism (1), the switch mechanism (1) is connected between both pedals (3) (4) and the switch mechanism (1) by the initial operation of the forward pedal (3) or the reverse pedal (4). Switching interlocking mechanisms (5) and (6) capable of switching 1) to the forward or reverse side are provided, respectively, and these mechanisms are provided between the two pedals (3) and (4) and the belt transmission mechanism (2). A shift interlocking mechanism (7) is provided that shifts the belt shift mechanism (2) from a neutral shift position to an increasing speed by a foot operation after the initial operation of the forward pedal (3) or the reverse pedal (4). A traveling interlocking device for a moving vehicle characterized by the following.