JPH0132120Y2 - - Google Patents

Description

[Detailed Description of the Invention] (A) Field of Industrial Application The present invention relates to a gear shift lever operating device in which a plurality of gear shift levers are provided close to each other.

(B) Prior Art Conventionally, in devices such as transmission transmissions that are operated by multiple shift levers provided in the control section, there is a restriction on the width of the lever sections, so it is not only necessary to arrange them horizontally. They were also placed in the front and back.

(c) Problems to be solved by the invention When arranging the plurality of shift levers in the front and rear,
Since the operating rod of the gear shift lever on the far side from the switching section of the transmission must bypass the position of the gear shift lever on the closer side, the position of the gear shift lever on the side closer to the operating rod must be shifted laterally. Unavoidably, the width of the lever part becomes wider, and if a certain space is secured for the pilot, the width of the aircraft becomes larger.Furthermore, the front and rear lever set positions are shifted laterally, resulting in poor operability and Ta.

In order to solve this problem, the lower part of the front and rear gear shift levers closer to the switching part is bent into an inverted L shape and connected to the gear lever on the far side. If it is installed directly below the bent part, straw or other foreign matter may fall from the guide groove of the lever guide plate that covers the upper part and enter the shaft support of the gear shift lever or pass below it. It may accumulate on the rods that are in use, resulting in poor operability.

(d) Means for solving the problem The present invention has at least a pair of front and rear gear shift levers that are pivoted on one side of the aircraft at a distance that allows them to be tilted back and forth, thereby controlling a plurality of switching parts such as a transmission. The gear lever is configured to be operated from the same side, and one of the gear shift levers near the switching section is connected to an inverted L-shaped part that is erected on the boss and whose upper part is bent in the horizontal direction, and a reverse L-shaped part that is bent in the horizontal direction. It consists of a rod-shaped part that stands upright on the curved part and is inserted into the guide groove of the lever guide plate, and the rod connected to the other gear shift lever is arranged directly below the horizontal part of the inverted L-shaped part. However, the above-mentioned problem was solved by extending the transversely bent portion of the speed change lever forward and backward and approaching the lower surface of the guide groove to close the guide groove.

(e) Function Since the rod of the gear shift lever located at a far location passes directly under the gear shift lever located at a location close to the gear shift actuating section, there is no need to bypass the gear shift lever located at a location close to the rod. The width of the gear lever can be narrowed, making it easier to change the grip when operating the front and rear gear shift levers in succession, improving operability.

(F) Example An example of the present invention will be explained with reference to the drawings.
As shown in FIGS. 7 and 8, the engine 3 is mounted on a front axle part 2 that supports front wheels 2a, 2a toward the front, a control part is provided in a front chassis 4, and a transmission is installed in the rear part. 5, and rear wheels 6, 6 are attached to an axle that projects from the transmission 5 to both left and right sides.

Further, at the upper part of one side of the chassis 4, as shown in FIGS. 1 and 2, there is a base plate 7 extending over the front end of the fuselage 1.
is fixed, and the main shift lever 9 is attached to a pair of left and right support plates 8, 8 erected at the front of the base plate 7 so as to be tilted back and forth and left and right, and the main shift lever 9 and the lever guide plate 10 are fixed. A pair of left and right support plates 11, 11 inserted into the H-shaped guide groove 10a and erected at the rear of the base plate 7 are provided with a boss 13 of the switching lever 12 of the four-wheel drive section and a boss 15 of the sub-shift lever 14. A support shaft 11a is fixedly attached thereto so that it can be rotated back and forth.

The sub-shift lever 14 has a boss 15 thereof.
The switching lever 12 stands up from the outside and the upper part is the switching lever 12.
It is composed of an inverted L-shaped part 14a bent to the side and a rod-shaped part 14b welded to the upper surface of the inverted L-shaped part 14a.
The upper part of the character-shaped part 14a is formed into a plate 14c extending back and forth as shown in FIG. 5, and covers the lower surface of the guide groove 10b of the lever guide 10 as shown in FIG. A front-rear plate 12a welded to the intermediate portion of the guide groove 10c covers the lower surface of the guide groove 10c.

Further, on the left and right sides of the main shift lever 9, plates 9a that engage and disengage when the main shift lever 9 is tilted sideways;
9a is pivotally supported, and those plates 9a,
As shown in FIG. 3, the rods 16 and 17 whose rear ends are connected to 9a pass directly under the inverted L-shaped portion 14a of the auxiliary shift lever 14 to switch the shift arm, etc. of the transmission 5 at the rear. The boss 13 of the switching lever 12 and the sub-shift lever 14
Arms 18 and 19 welded to the inner ends of the bosses 15 are connected to corresponding switching parts of the transmission 5 by rods 20 and 21, respectively.
17, 20, and 21 are housed in a space surrounded by the inverted L-shaped portion 14a and the switching lever 12,
In addition, the rods 20 and 21 are located approximately in the center of the lower part of the space at a distance from each other, while the rods 16 and 17 are located in the upper part and are offset toward the inverted L-shaped portion 14a.

22 is a brake pedal provided on the right side of the control section, and includes front rods 23, 23, a brake control section 24 provided at the upper part of the front axle section 2 of the aircraft 1, intermediate rods 25, 25, and a center case. The brake pedal 30, which is connected to the brake arms 27, 27 by the brake shaft 26 of 29 and the rear rods 28, 28, and which is provided on the left side of the control section, is connected to the clutch control section 31, which is provided at the upper part of the front axle section 2. and front rod 32
It is interlocked and connected to the clutch shaft 36 of the clutch housing 35 via a relay rod 33, an arm protruding from the brake shaft 26, and a rear rod 34.

Next, set the engine control device to
5, reference numeral 37 is a control lever, the base of which is inserted into a bracket 38 attached to the chassis 4 as shown in FIGS. disc spring 40 and plate arm 42
The operating plate 41, which is loosely fitted and whose tip is bent downward, is fitted so as to rotate together and is fastened with a nut 43. A support shaft 47 having a foot lever 46 is attached to the flanges 44, 44 and the bracket 45.
A link shaft 48 is rotatably supported, and the link shaft 48 and the support shaft 47 are connected to an arm 49 fixed to the support shaft 47 and the link shaft 48 as shown in FIG.
The bar 52 protruding from the tip of the plate-shaped arm 42 is interlocked with the arm 50 protruding from the link shaft 48 by connecting the tip of the arm 50 with a link 51 having an elongated hole. 53, and the foot lever 46 is urged back by a return spring 54.

Further, the front end of a wire 56 is connected to an arm 55 fixed to the end of the link shaft 48, and the rear end of the wire 56 is supported at the middle part by a support pin 57 as shown in FIGS. 13 and 14. The upper part of the swing arm 58 is urged back forward by a spring 58a,
When the wire 58 is pulled, the swing arm 58 is received by the stopper 61a, and the support pin 57 is attached to the mounting plate 6, which is screwed onto the rear plate 59 of the engine 3 and has an L-shape in plan view.
The swing arm 58 is pivotally supported by support plates 61, 61 that stand up from 0, and the upper part of the swing arm 58 is connected to a control plate 63 of the engine 3 by a rod 62.

Further, the swing arm 64 pivotally supported by the support pin 57 is connected to a stop plate 65 of the engine 3 by a rod 66 and is connected to an operating member of the control section by a wire 67.

When the control lever 37 is rotated toward the front (in the direction of the arrow in FIG. 10), the actuating plate 4
1 engages with the plate-shaped arm 42 and rotates it, thereby rotating the link shaft 48 clockwise in FIG. 9 via the bar 52 and arm 53 to move the wire 56 forward. pull to.

At that time, the link shaft 48 and the arm 50 are
Since the link 51 rotates in the direction of the arrow in the figure and has a long hole, the foot lever 46 does not operate.

Furthermore, when the foot lever 46 is depressed, the arm 49 rotates clockwise together with the support shaft 47 in FIG. The wire 56 is pulled in the same way as when the plate arm 42 is rotated to the twelfth position.
The control lever 37 simply rotates from the position shown by the solid line to the position shown by the chain line in the figure.
does not rotate.

Further, when the control lever 37 is rotated in the opposite direction, the actuating plate 41 hits the stopper 38a that is integrated with the bracket 38, and the control lever 37 is rotated.
The rotation range is limited.

When the wire 56 is pulled forward, the swing arm 58 rotates from the position shown by the solid line to the position shown by the chain line in FIG. The rotation speed increases.

Further, when the control lever 37 is returned and rotated, or when the foot lever 46 is released from being depressed, the swing arm 58 is returned to the home position by the spring inside the engine 3 and the spring 58a.

However, the engine speed is adjusted by a nut 68 that fastens the rod 62 to the control plate 63.

16 to 21 show the brake control section 24 and the clutch control section 31. The brake control section 24 has a downward U-shaped support 69 screwed onto the chassis 4 as shown in FIGS. 17 and 18. Two hanging plates 71 and 72 are rotatably suspended from a support shaft 70 supported by the support metal 69, and two sets of holes 74 and 74 are formed in the hanging plates 71 and 72, respectively. , 75, 75 are bored in the upper and lower positions to connect the rear ends of the front rods 23, 23 connected to the brake pedals 22, 22, and the intermediate rod 2.
5, 25 at the front end are connected with a pin. At that time, the front axle part 2 tilts up and down centering on the middle of the width of the fuselage 1, as shown in FIG. The front rods 23, 23 and the intermediate rods 2 are connected to the upper or lower holes 74, 74 of the holes 74, 74 or 75, 75 that form a set depending on the range.
The connecting portions 5 and 25 can be detoured above the tilting range of the front axle portion 2.

Further, the clutch control section 31
As shown in FIGS. 9 to 21, a suspension plate 77 is rotatably suspended from a support shaft 76 protruding from the outer surface of the chassis 4, and the front rod 32 is inserted into the holes 78, 78, 79, 79 of the suspension plate 77. Connect the joint 80 between the rear end and the front end of the relay rod 33 with pins 81 and 81 to select a pair of upper and lower holes 78 or 79 so as to bypass the tilting range of the front axle part 2, similar to the aforementioned brake control part 24. and connect.

(g) Effects of the invention Since the invention is constructed as described above, the gear shift lever close to the switching section and the rod connected to the gear shift lever farther away can be disposed in a substantially vertical plane. , the width of the lever part can be made narrower,
This can prevent the body width from increasing.

In addition, the front and rear gear shift levers can be positioned immediately or immediately before, allowing for easy shifting operations.

Furthermore, the reverse L of the gear shift lever on the side closer to the switching part
The horizontal portion of the letter-shaped portion prevents straw or other foreign matter from entering the shaft support of the gear shift lever by closing the guide groove while avoiding the rod placed directly below it as described above. It does not accumulate on the rods placed below the direction part.
It is possible to prevent the operational performance of the gear shift lever operating device from deteriorating.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a plan view of the lever section, Figure 2 is a side view of the same, Figure 3 is a cross-sectional view of the same, Figures 4 a and b are plan views showing the relationship between the guide groove and the gear shift lever, and Figure 5 a.
is a front view of the auxiliary gearshift lever, b is a side view of the same, and 6th
Figure a is a front view of the switching lever, b is a side view of the same, Figure 7 is a plan view of the tractor, Figure 8 is a side view of the same,
Figure 9 is a side view of the engine control operation section;
Figure 10 is a front view of the same as above, Figure 11 is A of Figure 10.
12 is a plan view of the control lever support section, FIG. 13 is a plan view of the engine side control section,
Fig. 14 is a side view of the same as above, Fig. 15 is a side view of the swing lever support part, Fig. 16 is a front view of the front wheel support part,
Fig. 17 is a front view of the brake control section, Fig. 18 is a side view of the same, Fig. 19 is a plan view of the clutch control section, Fig. 20 is a side view of the same, and Fig. 20 is a side view of the same.
FIG. 1 is a plan view of the connecting portion. 1... Airframe, 2... Front axle section, 3...
...Engine, 12...Switching lever, 14...Sub-shift lever, 16, 17, 20, 22...Rod.

Claims (1)

[Scope of utility model registration request] At least a pair of front and rear gear shift levers are pivotably supported on one side of the aircraft body at a distance that allows for forward and backward tilting operation, so that a plurality of switching parts such as a transmission can be operated from the same side; One gear shift lever that is close to the other is provided with an inverted L-shaped part that is erected on its boss and whose upper part is bent in the horizontal direction, and a part that is bent in the lateral direction and is also provided with a guide for the lever guide plate. a rod-shaped part inserted into a groove, and a rod connected to the other gear shift lever is disposed directly below the lateral part of the inverted L-shaped part, and the part bent in the lateral direction of the gear shift lever. A gear shift lever operating device characterized in that the guide groove is closed by extending forward and rearward and approaching the lower surface of the guide groove.