JP3033652U - Warning device for turning the steering wheel of a car too much - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a steering wheel over-turning warning device capable of providing a reference for a relatively safe rotation operation range of a steering wheel and enabling safe driving operation of an automobile. [Structure] When the steering wheel 2 of the automobile is turned a predetermined number of times from the neutral position to the right or left,
A warning device for turning the steering wheel excessively so as to give a warning by the warning lights 14 and 15 and / or the buzzer 22.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a device that warns when a steering wheel of a vehicle is turned too much (too much).

[0002]

[Prior art and its problems]

 For example, the steering wheel may be turned from the neutral position to the left and right many times when the vehicle is parked in the garage from a steep angle in the back or when making a turn on a relatively narrow road.In such a case, the steering wheel may be turned at once. If you turn the wheel more than necessary, you risk hitting the car against a wall or another car, or derailing it into a gutter. Especially for cars with power steering, the steering wheel is very light and often turned too much. In a normal car, turning the steering wheel once or a half and a half will not cause any problems, but if you turn it more than twice, the steering angle (turning angle) of the wheels will increase considerably, which is dangerous as above. Cause a situation.

In view of the above-mentioned circumstances, the present invention provides a handle over-warning device for indicating a relatively safe rotation operation range of a steering wheel and enabling safe driving operation of a vehicle. The purpose is to provide.

[0004]

[Means for Solving the Problems]

 The steering wheel overturn warning device for a vehicle according to claim 1 issues a warning by the warning lights 14 and 15 and / or the buzzer 22 when the steering wheel 2 of the vehicle is turned a predetermined number of times from the neutral position to the right and left respectively. This is a feature of the above.

According to a second aspect, in the overturning warning device for a vehicle according to the first aspect, a hollow screw shaft 3 is externally fitted and fixed to a required portion of the steering shaft 1 and screwed into the screw shaft 3. When the nut member 4 is held so as to be movable only in the axial direction, electric contacts 8 and 9 are provided on both upper and lower end sides of the screw shaft 3, and the handle 2 is turned to the right at a predetermined number or more on the upper end side of the nut member 4. The electrical contact 10 that contacts the upper end contact 8 of the screw shaft 3 to close the warning circuit 12 and the lower end of the nut member 4 when the handle 2 is turned leftward a predetermined number of times or more, the lower end of the screw shaft 3 is rotated. An electrical contact 11 is provided which comes into contact with the side contact 9 and closes the warning generation circuit 13.

[0006]

【Example】

 Next, an embodiment of the overturning warning device of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a steering shaft having a handle 2 attached to an upper end thereof, and a hollow screw shaft 3 having a required length is externally fitted and integrally fixed to the lower portion of the steering shaft 1. A nut member 4 is screwed onto the shaft 3. As shown in FIG. 3, one end portion of the nut member 4 is integrally provided with a pair of slide portion pieces 5 and 5 on both sides, and both slide portion pieces 5 and 5 are provided above or below the steering shaft 1. The nut member 4 is slidably fitted into the guide grooves 7 and 7 of the guide rail 6 that is mounted and fixed so as to extend parallel to the steering shaft 1 on the vehicle body A located therein, whereby the nut member 4 is prevented from rotating and moves in the axial direction. It is held possible. The screw shaft 3 and the nut member 4 are integrally formed of a synthetic resin material and have electrical insulation.

Further, as shown in FIG. 1, ring-shaped electrical contacts 8 and 9 made of an electrically conductive metal material are respectively screwed into the upper and lower ends of the screw shaft 3 and fixed in place, and a nut member is also provided. 4, electrical contacts 10 and 11 made of an electrically conductive metal material are provided on the upper end side and the lower end side, respectively. Both electrical contacts 10 and 11 on the side of the nut member 4 are coil springs 21 made of an electrically conductive metal, which are embedded concentrically and integrally with the nut member 4 and project from the upper and lower ends of the nut member 4 by the same length. Then, the upper and lower ends of the coil panel 21 form the electrical contacts 10 and 11 on the side of the nut member 4, respectively. The positions of the two electrical contacts 8 and 9 on the screw shaft 3 side can be adjusted by appropriately rotating them. As can be seen from FIGS. 1 and 3, the coil spring 21 is integrally fixed to the nut member 4 by embedding the axially intermediate portion thereof into the nut member 4 during molding.

However, in the handle over-rotation warning device of this embodiment, the nut member 4 is positioned at the center between the electric contacts 8 and 9 on the screw shaft 3 side when the handle 2 is in the neutral position. Then, when the handle 2 is rotated about 2 times to the right, for example, the rotation of the steering shaft 1 causes the nut member 4 to move upward, so that the upper end side electric contact 10 of the nut member 4 comes into contact with the upper end side electric contact 8 of the screw shaft 3. The warning signal generating circuit 12 as shown in FIG. 2 is configured to be closed, and when the handle 2 is rotated about 2 times to the left, the nut member 4 moves downward and the lower end side electrical contact 11 of the screw shaft 3 moves. When the warning generating circuit 12 as shown in the drawing is closed by contacting the lower end side electrical contact 9, and the warning generating circuit 12 is closed, the warning lamp 14 is turned on and the buzzer 22 sounds at the same time. The When the dollar 2 is turned too far to the right, and when the warning circuit 13 is closed, the warning light 15 lights up and the buzzer 22 sounds at the same time to warn that the handle 2 is turned too far to the left. ing.

In FIG. 2, reference numeral 16 is a power source, which is composed of a battery of an automobile. In FIG. 1, 17 is a lead wire connected to the coil spring 12, 18 and 19 are lead wires connected to the electrical contacts 8 and 9 at both upper and lower ends on the screw shaft 3 side, and the lead wires 17 and 18 are electrical contacts. A warning generation circuit 12 is formed together with 8, 10, a power supply 16, a buzzer 22 and a warning light 14, and lead wires 17 and 19 together with the electrical contacts 9, 11, a power supply 16, a buzzer 22 and a warning light 15 generate a warning generation circuit 13 Is formed. In addition, the warning light 14 for warning that the handle 2 is excessively turned to the right, the warning light 15 for warning that the handle 2 is excessively rotated to the left, and the buzzer 22 that warns if the handle 2 is excessively rotated to the left or right are shown in FIG. It may be mounted on the front board 20 in the driver's seat as shown in FIG. 4, or may be incorporated into an existing warning board.

In this handle over-rotation warning device, when the handle 2 is rotated about 2 times to the right from the neutral position, the upper end side electric contact 10 of the nut member 4 comes into contact with the upper end side electric contact 8 of the screw shaft 3. When the warning light 14 starts to light up and the buzzer 22 starts to sound at the same time, and the handle 2 is rotated to the right two times or more, the upper end side electric contact point 10 of the nut member 4 becomes the upper end side electric contact 8 of the screw shaft 3. While in contact, the nut member 4 moves upward while compressing the coil spring 12 until the handle 2 fully rotates. The same applies when the handle 2 is rotated to the left about twice or more, and when the lower end side electrical contact 11 of the nut member 4 contacts the lower end side electrical contact 9 of the screw shaft 3 and the warning lamp 15 starts lighting. At the same time, the buzzer 22 begins to ring, and when the handle 2 is rotated to the left two times or more, the lower end side electric contact 11 of the nut member 4 remains in contact with the lower end side electric contact 9 of the screw shaft 3, and the handle 2 moves to the left. The nut member 4 moves downward while compressing the coil spring 12 until it fully rotates in the direction.

According to the steering wheel over-turning warning device having the above-described configuration, when the steering wheel 2 is turned left and right many times, such as when the vehicle is parked in the back or when you turn around on a narrow road, the steering wheel 2 is rotated. As a guide, for example, within two rotations, which is a relatively safe rotation operation range, the warning light 15 or 14 lights up and the buzzer 22 sounds at the same time when the light is turned twice in either the left or right direction. Is to be alerted by the warning lights 15 or 14 lighting and the buzzer 22 ringing to avoid the danger of hitting the car against a wall or another car, or derailing into a gutter. You can

Further, like the handle over-rotation warning device of this embodiment, a hollow screw shaft 3 is externally fitted and fixed to a required portion of the steering shaft 1, and a nut member 4 screwed into the screw shaft 3 is attached. It is held so that it can move only in the axial direction, and electrical contacts 8 and 9 are provided on both upper and lower ends of the screw shaft 3, and when the handle 2 is turned to the right about two or more times on the upper end side of the nut member 4, the screw shaft 3 When the handle 2 is also turned to the left about twice or more, the electric contact 10 that comes into contact with the electric contact 8 on the upper end side to close the warning generation circuit 12, and the lower end side of the nut member 4 is also turned to the lower end side of the screw shaft 3. If the electric contact 11 that contacts the electric contact 9 and closes the warning generation circuit 13 is provided, the structure is simple, the number of parts is small, and the manufacture is easy.

Although the handle over-turning warning device described above uses the warning lights 14 and 15 and the buzzer 22, the warning is issued by both the lighting of the warning lights 14 and 15 and the sound of the buzzer 22. Alternatively, one of the warning lights 14 and 15 or the buzzer 22 may be used, and the warning may be issued by either the lighting or the sound. In addition, this warning device is provided with two warning generation circuits, a warning generation circuit 12 that warns if the steering wheel is excessively turned to the right and a warning generation circuit 13 that warns that the steering wheel is rotated too far to the left. A circuit may warn you of overturning in both directions.

[0014]

[Effect of the invention]

 According to claim 1, when the steering wheel is turned from the neutral position to the right and leftward a predetermined number of times or more, respectively, the warning light and / or the buzzer gives a warning. When turning the steering wheel to the left and right many times, such as when entering a garage or making a turn on a narrow road, the driver is warned by a warning light and / or a buzzer, so the steering wheel rotation speed is relatively low. With a guideline for a safe rotation operation range, it is possible to avoid the risk of hitting the car against a wall or another car, or derailing the car to a gutter.

According to claim 2, a hollow screw shaft is externally fitted and fixed to a required portion of the steering shaft, and a nut member screwed to the screw shaft is held so as to be movable only in the axial direction. Side of the nut member, the upper end of the nut member contacts the contact on the upper end side of the screw shaft when the handle is turned to the right a predetermined number of times or more, and closes the warning circuit. The structure is simple and the number of parts is small, and it is easy to manufacture by adopting the configuration in which the electric contact that closes the warning circuit by contacting the contact on the lower end side of the screw shaft when the handle is turned to the left a predetermined number of times Becomes

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a handle over-warning warning device according to the present invention.

FIG. 2 is an electric circuit diagram of the above warning device.

FIG. 3 is an enlarged sectional view taken along line XX of FIG. 1;

FIG. 4 is an explanatory diagram showing a state in which a warning light is installed in the driver's seat.

[Explanation of symbols]

 1 Steering shaft 2 Handle 3 Screw shaft 4 Nut member 8 Upper electric contact of screw shaft 9 Lower electric contact of screw shaft 10 Upper electric contact of nut member 11 Lower electric contact of nut member 12 Warning circuit 13 Warning occurrence Circuit 14 Warning light 15 Warning light 22 Buzzer

Claims (2)

[Utility model registration claims] 1. An over-turning warning device for a steering wheel of an automobile, characterized in that when the steering wheel of the automobile is turned from the neutral position to the right and to the left a predetermined number of times or more, a warning is given by a warning light and / or a buzzer. . 2. A hollow screw shaft is externally fitted and fixed to a required portion of a steering shaft, a nut member screwed into the screw shaft is held so as to be movable only in an axial direction, and electric contacts are provided on both upper and lower ends of the screw shaft. At the same time, the upper end of the nut member has an electrical contact that closes the warning circuit by contacting the upper end contact of the screw shaft when the handle is turned to the right a predetermined number of times or more, and the handle at the lower end of the nut member. The steering wheel overturn warning device for a vehicle according to claim 1, further comprising an electric contact that comes into contact with a lower end side contact of the screw shaft and closes the warning generation circuit when turned leftward a predetermined number of times or more.