JP2523198Y2 - Engine start safety device in vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention relates to an engine start-up safety device for a vehicle that can start an engine only when a main shift is neutral.

(B) Conventional technology Conventionally, one of a plurality of shifters is selected by sliding a main transmission operation shaft orthogonal to a transmission shaft in a neutral position in an axial direction in a transmission case, so as to move around a shaft center. In a vehicle mounted so as to move the shifter forward and backward by turning, a movable restraining device is provided in the transmission case to restrain the movement of the shifter on the side not shifted by the sliding operation of the shift lever to a neutral position. There is already known an engine start-up safety device in which a depression or a protrusion for operating an engine start-up safety switch is provided in a restraint so that the engine cannot be started when the engine is at a neutral position within a selected sliding range.

(C) Problems to be Solved by the Invention The known engine start-up safety device requires a movable restraint member having a complicated structure and is disposed in the transmission case, so that the assembly is troublesome. Was.

(D) Means for solving the problem The present invention selects one of a plurality of shifters by sliding a speed change operation shaft supported by a transmission case in a neutral position in an axial direction, thereby selecting a shaft center. The left and right fenders are positioned below the driver's seat and opposed to the end of the shift operation shaft in a vehicle in which a shift operation is performed by moving a shifter for shifting by revolving around a fender. The above-mentioned problem has been solved by mounting the safety switch of the engine on the lower surface of the fender support, and connecting and disconnecting the safety switch by a sliding operation beyond the speed change operation range of the speed change operation shaft. .

(E) Operation When the shift operation shaft is slid in the length direction by the shift lever at the neutral position during the shift operation, one of the plurality of shifters can be selected, and the shift lever is rotated in the selected state. Then, the shift operation shaft rotates and the shifter can be shifted.

Further, when the engine is started, if the shift operation shaft is moved beyond the shifter selection operation range at the neutral position by the shift lever, the shift operation shaft turns on the safety switch and the engine can be started.

Further, by providing a fender support for connecting the left and right fenders at a position corresponding to the speed change operation shaft, the fender support can be used as a mounting member for a safety switch, and the fender support prevents rainwater from being applied to the safety switch.

(F) Embodiment One embodiment of the present invention will be described with reference to the drawings.
An engine 4, a battery 5, a radiator 6 and a handle 7 are arranged at the front of a body 3 having rear wheels 2, and a transmission case 8 as a transmission case and a driver's seat 10 are arranged at the rear.
Of the transmission case 8, the front gear speed change lever 11, the super low speed shift lever 12, the auxiliary shift lever 13, the main shift lever 15, and the shuttle shift lever 16 are operated. The PTO shift lever 17 is disposed on the right side of the driver's seat 10.

Shift forks 19 and 19 and adapters 20 and 20 are attached to a pair of shift rails 18 and 18 parallel to the transmission shaft 14 which is supported in the front-rear direction near the upper portion of the transmission case 8. The lower end of the lateral speed change operation shaft 21 movably supported on the side is the adapters 20 and 2.
The bosses of the shift arms 22, 22 which are disengaged from the main shift lever 22, 22 are fastened by the pins 23, 23 and urged back by the springs 25. A boss 26 that is bent toward the center of the machine width and fixed to the peripheral surface is fixed.

28 is the left side of the transmission case 8 (right side when viewed from the front)
A regulating plate screwed to the upper part, the regulating plate 28 has a check hole 30 that connects an upper small circular hole and a lower large circular hole in a gourd shape, and the large circular hole has When the main transmission lever 15 is pushed to the left in FIG. 1 into the small circular hole, the base end of the main transmission lever 15 is fitted, and when the hand is released from the main transmission lever 15, it comes out. I have.

The right and left fenders 31, 31 are connected by a fender support 32 directly above the speed change operation shaft 21 and below the driver's seat 10 as shown in FIG. An engine start safety switch 35 facing the end face of the shift operation shaft 21 is attached to the placket 33, and a lever guide 36 of the main shift lever 15 is attached to the inside of the fender 31. It has an H-shape and has a recess 38 on the driver's seat 10 side in the neutral position, and the safety switch 35 does not turn on when the contact is pushed out by a spring and is not forcibly pushed in. Has become.

When the main shift lever 15 is moved right and left at the neutral position (lateral groove portion) of the guide groove 37, the shift operation shaft 21 slides in the lateral direction to select one of the adapters 20 of the shift fork 19, and that state When the gear is rotated forward or backward, the shift fork 19 moves back and forth, and a gear change is performed.

When the engine 4 is started, when the main shift lever 15 in the neutral position is pulled toward the driver's seat 10 and is inserted into the recess 38, the inward end of the main shift lever 15 is fitted into the restraint hole 30. Therefore, the speed change operation shaft 21 moves more than the normal speed change operation position, and the other end is turned on by pressing the safety switch 35, so that the engine 4 can be started.

However, when the main shift lever 15 is not in the neutral position,
The main shift lever 15 is moved to the driver's seat 10 with the engine 4 not started.
Even if pulled to the side, the base of the main transmission lever is inconsistent with the traction hole 30 as shown by the dotted line in FIG. 4, and the transmission operation shaft 21 is in the normal transmission operation range and does not move inward. The safety switch 35 is not turned on and the engine 4 cannot be started, which is safe.

A shift arm guide 27 for restricting the tip end side of the shift arm 22 is screwed into the transmission case 8 in place of the restricting plate 28, and a guide having substantially the same shape (H type in this example) as the operation pattern thereof is provided. A groove 28a is bored as shown in FIG. 1 (b), a recess 30a is provided on the side opposite to the main transmission lever 15 at the middle position in the horizontal direction in the middle, and the speed change operation shaft 21 is set at the neutral position. When pushed in by 15, the shift arm 22 engages with the concave portion 30a, and when the hand is released from the main shift lever 15, the shift operation shaft 21 is pushed back by the spring 25, and the shift arm 22 escapes from the concave portion 30a. It may be possible to return to the normal shift operation position.

Furthermore, the fender support 32 is a safety switch 35
While being a support member, it covers the upper surface thereof to prevent it from getting wet by rainwater or the like.

FIG. 8 shows a rubber cover 41 of the steering column 40.
The small diameter part is fitted to the small diameter part on the upper part of 40, and the lower part is configured so that the small diameter part and the large diameter part are arranged alternately and can be expanded and contracted. Is provided with a circumferential ridge 42, and a peripheral groove 43 in which the ridge 42 is fitted is formed near the lower portion of the steering column 40. Therefore, it is possible to reduce the cost by applying the dust cover 41 to different types of steering columns 40 having different lengths.

(G) Effect of the present invention The present invention selects one of a plurality of shifters by sliding the speed change operation shaft 21 supported on the transmission case in the axial direction at the neutral position as described above, thereby selecting the shaft center. The left and right fenders are used in a vehicle in which a shift operation is performed by moving a shifter for shifting by revolving around
31, 31 are connected by a fender support 32 below the driver's seat 10 and at a position facing the end of the speed change operation shaft 21;
The safety switch 35 of the engine 4 is mounted on the lower surface of the fender support 32, and the safety switch 35 is configured to be intermittently operated by a sliding operation exceeding the speed change operation range of the speed change operation shaft 21, so that the speed change operation shaft 21 is neutralized. If the position is slid beyond the normal operation range, the engine can be started by turning on the safety switch 35, and at this time, the speed change operation shaft 21 can be used also for the operation of the safety switch 35, As a very simple structure, the number of parts and the number of assembling steps can be reduced, and the cost can be significantly reduced.

Moreover, the fender support 32 connecting the left and right fenders 31, 31 can be used as a mounting member for the safety switch 35, and it is possible to prevent rainwater, dust, and the like from falling on the safety switch 35 and adhering thereto. .

[Brief description of the drawings]

1A is a cross-sectional view of a main part, FIG. 1B is a plan view of a shift arm guide, FIG. 2 is an upper side view of the shift arm guide, FIG. FIG. 3 is a front view of the regulation plate mounting portion, FIG. 4 is an upper side view of the same, FIG. 5 is a cross-sectional view of the speed change operation shaft support portion, FIG. 6 is a plan view of the lever guide, and FIG. FIG. 8 is a sectional view of the steering column. 4 ... engine, 15 ... main shift lever, 19 ... shift fork, 21 ... shift operation shaft, 22 ... shift arm, 25 ...
… Spring, 27a …… Shift arm guide 28 …… Regulator plate, 30 …… Check hole, 31 …… Fender, 32 …… Fender support, 35… Safety switch

Claims (1)

(57) [Scope of request for utility model registration] 1. A shift operation shaft 21 supported on a transmission case is slid in an axial direction at a neutral position to select one of a plurality of shifters, and is rotated around an axis to change the speed. In a vehicle in which a shift operation is performed by moving forward and backward shifters, the vehicle is connected by a fender support 32 at a position below the driver's seat 10 of the left and right fenders 31 and 31 and at a position facing the end of the shift operation shaft 21. The safety switch 35 of the engine 4 is provided on the lower surface of the fender support 32.
The safety switch 35 is attached to the speed change operation shaft 21.
An engine start-up safety device for a vehicle, which is configured to be intermittently operated by a sliding operation exceeding a shift operation range of the vehicle.