JPH0663425U - Power slide sheet energization structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a power slide sheet current-carrying structure that ensures safety and proper operation and improves the appearance. [Structure] In a power slide seat in which a seat supported by an upper rail 2 that slides along a lower rail 3 is electrically driven back and forth, a plurality of strip-shaped contacts 13 are laid on the lower rail 3 and the upper rail 2
A power seat switch 16 having a moving contact 17 which is in sliding contact with the belt-shaped contact 13 is attached to the drive contactor while the moving contact 17 is slidably moved with respect to the belt-shaped contact 13. The strip-shaped contacts 13 are arranged at the ends in the longitudinal direction with a slight deviation, and the moving motor 17 moves to the ends of the strip-shaped contacts 13 to stop the drive motor. It is not necessary to allow the wire harness 15 to have an extra length in anticipation of the slide, and it is possible to prevent the wire harness 15 from being caught or caught during the slide.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a power supply structure for a drive motor in a power slide seat of a vehicle such as a passenger car.

[0002]

[Prior art]

 In the power slide seat for this type of vehicle, the seat is electrically driven along a rail installed on the vehicle floor. FIG. 5 shows a configuration example of a conventional power slide seat, in which the seat body 1 is supported by an upper rail 2 and slides in the front-back direction along a lower rail 3 fixed to the vehicle floor via the upper rail 2. It is supposed to do.

A drive motor 4 is mounted in place on the seat body 1, and a power seat switch 5 is mounted on the upper rail 2. A lead wire 6 is attached to the power seat switch 5, and power can be supplied to the drive motor 4 by connecting a switch side connector 7 and a vehicle body side connector 8. The switch-side connector 7 and the vehicle-body-side connector 8 move back and forth together with the seat body 1, so that the wire harness 9 connected to the vehicle-body-side connector 8 has a certain forward and backward movement as shown in the figure. It has extra length.

[0004]

[Problems to be solved by the device]

 However, since the wire harness 9 has an extra length as described above in order to accommodate the sliding of the seat body 1, the extra length is slackened so that the sliding portion such as the upper rail 2 and the lower rail 3 is slid at the time of sliding. There was a risk of getting bitten. Further, there is a problem that the loose wire harness 9 protrudes from around the seat body 1 to deteriorate the appearance.

In view of the above points, the present invention has an object to provide a power sliding structure for a power slide sheet that secures safety and proper operation and improves appearance.

[0006]

[Means for Solving the Problems]

 The power supply structure of the power slide seat of this invention is a power slide seat in which a seat supported by an upper rail that slides along a lower rail is electrically driven forward and backward, and a plurality of strip-shaped contacts are laid on the lower rail. A power seat switch equipped with a moving contact slidingly contacting the strip-shaped contact is attached to the upper rail, and power is supplied to a drive motor while slidingly moving the moving contact with respect to the strip-shaped contact. .

Further, the belt-shaped contact is arranged so as to be slightly displaced at the end in the longitudinal direction, and the drive motor is stopped by moving the moving contact to the end of the belt-shaped contact. Is.

[0008]

[Action]

 According to this invention, power is supplied to the drive motor through the fixed strip-shaped contact with which the moving contact is in sliding contact, so that there is no need to allow the slide to have an extra length in the wire harness. Therefore, since the wire harness is not loosened, there is no need to worry that the wire harness is caught in the sliding portion or the like and is caught. Also, the wiring of the wire harness can be simplified, and orderly wiring can be realized.

Further, when power is supplied to the drive motor via a plurality of belt-shaped contacts, the movable contact itself is provided with an ON / OFF action by arranging it slightly offset at the end thereof, whereby front and rear The sheet can be automatically stopped at the moving end.

[0010]

【Example】

 1 to 4, the same members as those in the conventional example are designated by the same reference numerals, and an embodiment of the power supply structure of the power slide sheet according to the present invention will be described. FIG. 1 shows the overall structure of the energization structure of the present invention, and FIG. 2 is a sectional view seen from the front. In the figure, the upper rail 2 slides in the front-rear direction along a lower rail 3 fixed to a vehicle floor 10 (FIG. 2), but a ball bearing 11 and a roller bearing 12 are mounted between the rails 2 and 3. ing. As shown in FIG. 2, the upper rail 2 is laid along the side portion of the seat body 1 and supports the seat body 1.

Further, in the figure, 13 is a plurality of strip contacts laid on the lower rail 3, 14 is a lead wire for connecting the strip contacts 13 to the switch side connector 7, and 15 is a wire harness. Reference numeral 16 is a power seat switch provided with a moving contact 17 which is in sliding contact with the belt-like contact 13, and 18 is a lead wire for connecting the power seat switch 16 to the drive motor 4. The power seat switch 16 has an operation switch portion 16 a and is attached to the upper rail 2. A side ruled member 22 is attached around the power seat switch 16.

The strip contacts 13 a and 13 b of the strip contacts 13 are laid on the lower rail 3 via an insulator 19. As shown in FIG. 3, the insulator 19 is fixed to the lower rail 3 with a screw 20. Further, the strip contact 13c is constituted by the lower rail 3 itself along the side portion of the strip contact 13b. On the other hand, the moving contact 17 is composed of moving contacts 17a, 17b and 17c corresponding to the strip contacts 13a, 13b and 13c.

FIG. 4 shows a circuit configuration of the energization structure of the present invention. The band-shaped contacts 13a and 13b are arranged at the ends in the longitudinal direction with a slight shift, and the band-shaped contacts 13c are arranged at the band-shaped contact points 13a. , 13b has a length corresponding to the entire length. Then, along the longitudinal direction of the strip-shaped contact 13, the frontmost end position, the intermediate position and the rearmost end position of the power slide sheet are set respectively corresponding to the A section, the B section and the C section.

In the energization structure of the power slide seat according to the present invention, the connection relationship between the strip-shaped contact 13 and the moving contact 17 corresponding to the section of the seat body 1 is set as shown in the following table.

[0015]

When the seat body 1 is in the intermediate position, the moving contact 17 is located in the section B, and the belt-like contacts 13a, 13b and 13c are in the ON state with the corresponding moving contacts 17a, 17b and 17c, respectively. Has become. When the seat body 1 is at the frontmost position, the moving contact 17 is located in the section A, and at this time, only the strip-shaped contact 13a and the moving contact 17a are in the OFF state.

For example, when it is desired to move the seat body 1 in the intermediate position forward (at this time, the moving contact 17 is located in the section B as shown in FIG. 4), the operation switch portion of the power seat switch 16 16a is put on the Fr side. As a result, the voltage of the power supply 21 is applied to the drive motor 4 through the connection between the strip contact 13a and the moving contact 17a, and the drive motor 4 rotates in the forward direction to move the seat body 1 forward. When the seat body 1 is retracted, by inserting the operation switch portion 16a into the Rr side, a voltage having a polarity opposite to the above is applied via the connection between the strip-shaped contact 13b and the moving contact 17b for driving. The seat body 1 retracts as the motor 4 rotates in the reverse direction.

By the way, when the seat body 1 is at the foremost end position, the moving contact 17 is located in the section A as described above, and at this time, the belt-like contact 13a and the moving contact 17a are in the OFF state. When the seat body 1 moves forward to reach the frontmost position, the strip contact 13a and the moving contact 17a are turned off, so that the power supply to the drive motor 4 is cut off and the seat body 1 automatically stops. . When the seat body 1 is at the frontmost position, the belt-shaped contact 13b and the moving contact 17b are in the ON state, and the seat body 1 is retracted by putting the operation switch portion 16a on the Rr side. As described above, at the frontmost end position, the seat body 1 cannot be further advanced, and can only be moved backward.

Contrary to the above case, when the seat body 1 at the intermediate position moves backward and reaches the rearmost position, the belt-shaped contact 13b and the moving contact 17b are turned off, so that power supply to the drive motor 4 is performed. The seat body 1 is automatically stopped in this case as well. Further, when the seat body 1 is at the rearmost position, the seat body 1 cannot be further retracted, and can only be moved forward.

According to the energization structure of the present invention, the power slide sheet can be operated safely and accurately as described above, but the wire harness 15 is connected to the connector 7 on the side surface of the lower rail 3. As a result, there is no extra amount of play, which can eliminate the inconvenience such as bad appearance due to biting or protrusion and catching on the foot of the rear seat occupant. Further, in the past, since the switch side connector 7 was fixed to the back side of the seat cushion of the seat body 1, it was difficult to perform connector coupling work. However, according to the present proposal, the switch side connector 7 is connected to the lower rail 3 By fixing to the outer part of the connector, the workability of connecting the connector can be greatly improved.

Further, the drive motor 4 can be automatically stopped at the frontmost end position and the rearmost end position of the seat body 1, and an excessive current due to the lock of the drive motor 4 can be prevented from flowing. There is no danger of fever. Further, when the moving seat body 1 is stopped, for example, if a mechanical stop device is used, a large impact is generated when it collides with the stopper, but according to the present invention, it is stopped smoothly without such impact. be able to. Further, if the operation switch 16a does not return from the ON state, or the like occurs, the current can be reliably cut off.

[0022]

[Effect of device]

 As described above, according to the present invention, power is supplied to the drive motor through the strip contacts, so that the wire harness is not loosened and there is no danger of being caught or caught, ensuring safe and proper operation. can do. In addition, the wire harness can be routed neatly and compactly, which has the advantage of improving the appearance.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a power slide sheet energizing structure according to the present invention.

FIG. 2 is a vertical cross-sectional view of an electric power supply structure of a power slide sheet according to the present invention.

FIG. 3 is an exploded perspective view of a power slide sheet current-carrying structure of the present invention.

FIG. 4 is a circuit diagram of a power supply structure of a power slide sheet according to the present invention.

FIG. 5 is a perspective view showing a configuration example of a conventional power slide sheet.

[Explanation of symbols]

 1 Seat Main Body 2 Upper Rail 3 Lower Rail 4 Drive Motor 10 Vehicle Floor 11 Ball Bearing 12 Roller Ringing 13 Band-shaped Contact 14 Lead Wire 15 Wire Harness 16 Power Seat Switch 16a Operation Switch 17 Moving Contact 19 Insulator

Claims (2)

[Scope of utility model registration request] 1. A power slide seat in which a seat supported by an upper rail that slides along a lower rail is electrically driven back and forth, wherein a plurality of strip-shaped contacts are laid on the lower rail, and the strip-shaped contact is formed on the upper rail. A power seat switch equipped with a moving contact that makes sliding contact with the contact is attached, and power is supplied to the drive motor while slidingly moving the moving contact with respect to the band-shaped contact. Construction. 2. The belt-shaped contact is arranged slightly offset at the end in the longitudinal direction, and the drive motor is stopped by moving the moving contact to the end of the belt-shaped contact. The power supply structure for the power slide sheet according to claim 1, wherein: