JPH0532077U - Vehicle gear shift operation device - Google Patents

Abstract

(57) [Abstract] [Purpose] In a gear shift operation device of a vehicle in which a forward and backward transmission and a vehicle speed transmission are separately arranged near each other in the vicinity of a seat, for example, at the time of front work of a vehicle such as front loader work. By operating one of the gear shift levers while sitting on the seat, the speed can be reduced to the forward speed, the reverse speed, and the road speed can be easily switched to the speed for general work. In a shift operation device of a vehicle in which a forward and backward transmission and a vehicle speed transmission are separately arranged near each other in the vicinity of a seat, both transmissions are placed in an interlocking state and a non-interlocking state in which a forward low speed and a reverse high speed are set. The interlocking plate to be switched is connected, and the one shift lever is provided with a locking plate so that the interlocking plate can be switched between connected and released.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a gear shift operation device for industrial vehicles such as construction vehicles, transportation vehicles, agricultural and forestry vehicles, and the like.

[0002]

[Prior Art]

 In a conventional industrial vehicle gear shift operation device, the forward and reverse transmissions and the vehicle speed transmission are operated separately by their respective operating levers.

[0003]

[Problems to be solved by the device]

 If the forward and backward transmissions and the vehicle speed transmission are operated separately with their respective operating levers and they are not linked like the conventional industrial vehicle gear shifting operation device, repeated forward and backward high speed operations are possible. In the work required to mount a work device such as a front loader on the front part of the vehicle, it is necessary to separately operate the forward / reverse shift lever and the vehicle speed shift lever twice in one cycle. However, not only did the operation become complicated, but it also resulted in erroneous operation and there was a safety problem. In addition, it is dangerous to set a gear ratio that always increases the reverse speed when driving on the road or when performing other work.

[0004]

[Means for Solving the Problems]

 The present invention relates to a gear shift operation device for a vehicle in which a forward / reverse transmission and a vehicle speed transmission are separately arranged close to each other in the vicinity of a seat. The above problem has been solved by connecting with the interlocking plate for switching to and, and providing a locking plate on one of the shift levers to enable switching between the interlocking and releasing of the interlocking plate.

[0005]

[Action]

 When the interlocking plate is made non-interlocking by the locking plate by the locking plate, the forward / reverse transmission is moved forward by the forward / reverse shift lever and the vehicle speed transmission is set to the 34th speed by the shift lever. By moving the vehicle at a low speed with the vehicle in reverse, it is possible to perform road traveling, plowing work, or plow work. Also, when repeating a work such as a front loader that requires a load when moving forward and returning to the work start position by moving backward, if one of the gear shift levers is moved when the interlocking plate is interlocked with the locking plate. When a shift operation is performed, for example, when the forward / reverse shift lever is switched to forward, the shift lever switches to low speed in synchronization with it, and when it is switched to reverse, it switches to high speed in synchronization with it.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. A forward / rearward speed change lever 1 and a vehicle speed change lever 2 are disposed outside a speed change case 3 in an upward direction in close proximity to each other near a driver's seat of a vehicle. Has been done. As shown in FIG. 4, a pin 4, a pin 5, a fulcrum pin 6 and a connecting pin 7 are planted in the lever portion of the forward / reverse shift lever 1 from the front as shown in FIG. 4, of which the pin 4 and the fulcrum pin 6 are The pin 5 is planted on the center line of the lever with its head slightly facing forward, and the pin 5 is fixed with its head slightly facing forward on the side face deviating from the center line of the lever, and the lower connecting pin 7 is fixed. The lever is fixed to the side surface of the lever so as to project a sufficient size to connect an interlocking plate 16 described later.

On the front surface of the forward / reverse shift lever 1, a locking plate 8 having a long hole 9 in the substantially central portion is rotatably and movably supported by the fulcrum pin 6, and is stopped by a washer 14 and a C ring 15. Has been. A round hole 10 is provided in the upper portion of the locking plate 8 and is inserted into the pin 5 as shown in FIG. A front end of a pull-up bar 11 which is tilted and supported in a front view and fixed to a lower portion of the locking plate 8 is held at a position apart from a moving surface of the vehicle speed shift lever 2. Further, a fulcrum pin 6 is fixed to the uppermost end of the locking plate 8 with an operation rod 12 for moving the locking plate 8 and rotating the locking plate 8, and a knob for pinching with a finger at the tip thereof. Have 13.

The interlocking plate 16 that connects the forward / reverse shift lever 1 and the vehicle speed shift lever 2 is a T-shaped plate having a T-shaped elongated hole 17 in the substantially central portion in a side view, and the round hole 18 at the tip is the vehicle speed shift lever. It is fitted into the pin 21 fixed to the side surface of the No. 2 and is fixed by the C ring 22. A connecting pin 7 fixed to the lower part of the front surface of the forward / reverse shift lever 1 is fitted into the T-shaped long hole 17 in the center portion, and is fixed by a washer 19 and a C ring 20. Further, a return spring 23 is stretched between the rear end of the interlocking plate 16 and the receiving member of the transmission case 3 so that the connecting pin 7 is always urged in the direction of contacting the upper surface of the T-shaped elongated hole 17. is doing.

In the non-interlocked state shown in FIGS. 1 and 4, the forward / reverse shift lever 1 and the vehicle speed shift lever 2 are both in the neutral position, and the connecting pin 7 is located at the center of the T-shaped horizontal elongated hole 17. Therefore, even if the forward / reverse speed change lever 1 and the vehicle speed change lever 2 are individually changed to the state of FIG. 2 or 3, the connecting pin 7 can be moved only by moving in the elongated hole 17 of the T-shape. The plate 16 does not regulate the movement of either the forward / reverse shift lever 1 or the vehicle speed shift lever 2. Therefore, forward / backward movement, low speed, and high speed can be freely selected, so that general work and road traveling are possible.

Now, from the state shown in FIG. 4, the knob 13 is gripped, the round hole 10 is removed from the pin 5, and it is rotated around the fulcrum pin 6 to move the pulling rod 11 at the tip of the locking plate 8 to the T-shaped interlocking plate 16 described above. When the fulcrum pin 6 is moved upward in the elongated hole 9 and pulled up, the interlocking plate 16 is rotated around the pin 21 against the urging force of the return spring 23 to be connected. The pin 7 is fitted into the vertical groove of the T-shaped elongated hole 17, and the round hole 10 is fitted into the pin 4 and fixed at this time to obtain the state shown in FIG. In this state, both levers are in the neutral position, but they are completely restrained from each other, and if one shift lever is moved, the other shift lever will also move.

FIG. 6 shows a backward high speed state in which the forward / reverse shift lever 1 is moved rearward from the above state, and FIG. 7 shows a forward low speed state in which the forward / reverse shift lever 1 is moved forward. In this way, the driver can obtain the optimum speed for both front work and general work such as front loader work such as forward low speed and reverse high speed while sitting on the seat and general work and road running.

[0012]

[Effect of the device]

 The present invention relates to a gear shift operation device for a vehicle in which a forward / reverse transmission and a vehicle speed transmission are separately arranged close to each other in the vicinity of a seat. The interlocking plate 16 is used to switch between and, and the locking plate 8 is provided on one of the speed change levers 2 so that the interlocking plate 16 can be switched between connected and released, so that the driver can interlock while sitting on the seat. This makes it possible to accurately and easily perform front work gear shifting such as front loader work with low forward speed and high reverse speed, using a single lever operation, and in a non-interlocked state. By doing so, both optimum speeds for general work and road traveling can be obtained.

[Brief description of drawings]

FIG. 1 is a side view of a forward / reverse shift lever and a vehicle speed shift lever in a non-interlocking state in a neutral position.

FIG. 2 is a side view of the same as above, showing the forward / reverse shift lever in reverse and the vehicle speed shift lever in a low speed position.

FIG. 3 is a side view of the forward / reverse speed change lever forward and vehicle speed change lever high speed positions of the same.

FIG. 4 is a front view of a forward / reverse shift lever.

FIG. 5 is a side view of the forward / reverse speed change lever and the vehicle speed change lever in a linked state of neutral positions.

FIG. 6 is a side view showing a state in which the forward / reverse shift lever reverse movement and the vehicle speed shift lever high speed position are interlocked.

FIG. 7 is a side view of the forward / reverse shift lever forward and vehicle speed shift lever low-speed position.

[Explanation of symbols]

 1 Forward / reverse shift lever 2 Vehicle speed shift lever 6 Support point pin 8 Locking plate 11 Pull bar 16 Interlocking plate

Claims (1)

[Scope of utility model registration request] 1. A shift operation device for a vehicle, in which a forward-reverse transmission and a vehicle speed transmission are separately arranged in the vicinity of a seat and in close proximity to each other. A gear shift operating device for a vehicle, wherein the gear shift operation device is characterized in that the gear shift lever is provided with a locking plate 8 on one gear shift lever so that the gear shift lever is switched between the gear shift lever and the gear shift lever.