JP2019107909A - Seat slide device - Google Patents

Abstract

To provide a seat slide device which lessens the sound of lock member being banged against the upper rail and the lower rail at the time of locking.SOLUTION: An energizing member 80, plate-shape and making a loop, is fixed on the upper wall of an upper rail 20. The contacting part 82 of the energizing member 80 contacts the lock member 50, which energizes to lessen the movement of the lock member 50, and as the result, the striking sound is weakened when the lock member 50 is banged on the upper rail 20 and the lower rail 30.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a seat slide device for adjusting a seat for a vehicle back and forth.

  2. Description of the Related Art A seat slide device for adjusting a seat for a vehicle back and forth has conventionally been known to have a lock mechanism as in Patent Document 1 below. In the lock mechanism of the vehicle seat slide device, the claws of the lock lever which is tiltably fixed to the upper rail is engaged with the engagement hole of the lower rail and the engagement hole of the upper rail by urging of a spring. Lock the upper rail immovably to the lower rail. Then, when the lock lever is tilted by the operation of the operation lever and the claw is pulled out from the engagement hole of the lower rail and the engagement hole of the upper rail or the like, the lock is released.

JP, 2015-83425, A

  In the seat slide device of Patent Document 1 and the like, the claw of the lock lever contacts the engagement hole of the lower rail and the upper rail by the biasing of the spring at the time of locking, so that a large striking sound is generated. was there. The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a seat slide device capable of reducing hitting noise at the time of locking operation.

  The lower rail member fixed to the vehicle body, the upper rail member fixed to the seat and slidably provided to the lower rail member, the lower rail member of the lower rail member and the upper rail member, and the lower rail member A lock member having a lock hole engageable with and disengageable from the engaging portion and the upper rail side engaged portion; and a locked state in which the lock member engages with the lower rail side engaged portion and the upper rail side engaged portion And an operation member operated to switch a lock release state to release the lock state, and a plate-like member giving an urging force to resist the lock operation direction in which the lock member shifts from the lock release state to the lock state. The technical feature is that the biasing member is fixed to the inside of the upper rail member.

  According to the second aspect of the present invention, the biasing member is bent in a substantially H-shape, one end is fixed to the upper wall of the upper rail member, and the other end is arranged to be able to contact the lock member. It is a technical feature to be done.

  In the first aspect of the invention, the plate-like biasing member is fixed to the inside of the upper rail member, and the biasing force of the locking member is resisted in the locking direction, so the momentum of the operation of the locking member is reduced. It is possible to reduce the noise of the lock that is struck on the member and the lower rail member.

  According to the invention of claim 2, one end of the biasing member is fixed to the upper wall of the upper rail member, the other end is disposed so as to be in contact with the locking member, and the other end of the biasing member is the locking member Since a biasing force that acts to weaken the momentum of the operation of the lock member acts upon contact, it is possible to reduce the lock hitting noise generated at the time of the lock operation.

It is a side view showing the composition outline of the sheet for vehicles in which the seat slide device concerning the present invention is installed. It is a perspective view which shows the seat slide apparatus of FIG. It is a disassembled perspective view of the seat slide apparatus of FIG. 10 is a perspective view of a biasing member 80. FIG. It is a figure which shows the state of the lock member 50 and the biasing member 80 in a lock release state. It is a figure which shows the state of the lock member 50 in the middle of changing to a locked state from a lock release state, and the biasing member 80. As shown in FIG. It is a figure which shows the state of the lock member 50 and the biasing member 80 in a locked state.

  An embodiment of a seat slide device 10 according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the seat slide device 10 fixes the vehicle seat S to the vehicle floor B so as to be slidable back and forth, and mainly includes an upper rail 20 fixed to the vehicle seat S; A lower rail 30 fixed to a vehicle body (vehicle floor B) via a foot 40, and a lock member 50 capable of fixing (locking) the upper rail 20 and the lower rail 30 in the upper rail 20 and the lower rail 30 so as not to move relative to each other The operation lever 70 is operated to switch between the locked state of the upper rail 20 and the lower rail 30 by the lock member 50 and the unlocked state for releasing the locked state, and the lock member 50 in contact with the lock member 50. And a biasing member 80 for reducing sound.

  Upper rail (upper rail member) 20 is provided slidably with respect to lower rail 30 via a retainer and a steel ball (not shown). Further, a lock claw 21 which can be engaged with and disengaged from the lock member 50 is provided. The lock claw 21 may correspond to an example of the “upper rail side engaged portion”.

  The lower rail (lower rail member) 30 has a lock claw 31 formed in the same manner as the lock claw 21 of the upper rail 20. The lock claw 31 can correspond to an example of the “lower rail side engaged portion”.

  The lock member 50 is formed in a substantially longitudinal plate shape, and includes a lock hole 51 forming a locked state of the upper rail 20 and the lower rail 30, and a support piece 52 fitted to the upper rail 20 to support the lock member 50. Have. Further, the lock member 50 is made of an elastic member and always urged in a direction (upward direction) to maintain the lock state.

  The operating lever 70 (operating member) includes a gripping member 71 disposed outward of the upper rail 20, a connecting portion 72 extending from the gripping portion 71, and the upper rail 20 and the locking member extending from the connecting portion 72. And an operation unit 73 disposed between them.

  As shown in FIG. 4, the biasing member 80 is formed of a plate-like spring member, and has a shape bent in a substantially H-shape. The fixing portion 81 at one end of the biasing member 80 is fixed to the upper wall 22 of the upper rail 20 via the interposing member 90, and the contact portion 82 at the other end is positioned above the locking member 50 to be locked. It is arranged to be in contact with the lock member 50 in the state. The interposition member 90 is provided to fix a distance between the fixing portion 81 of the biasing member 80 and the upper wall 22 of the upper rail 20, and a metal block is used in this embodiment. Other members may be used as long as they have a function to make a distance.

  Next, the switching operation between the unlocked state and the locked state by the operation lever 70 in the seat slide device 10 will be described. When the grip portion 71 of the operation lever 70 is operated to move upward, as shown in FIG. 5, the lock member 50 is pressed by the operation portion 73 and is moved downward against the biasing force of the lock member 50 itself. By moving in the direction, the engagement between the lock hole 51 of the lock member 50 and the lock claw 21 of the upper rail 20 and the lock claw 31 of the lower rail 30 is released, and a relative movable unlocked state is obtained. In the unlocked state, since the lock member 50 is separated from the contact portion 82 of the biasing member 80, the locking member 50 does not receive the biasing force from the biasing member 80.

  After adjusting the relative position between the upper rail 20 and the lower rail 30, when the grip portion 71 of the control lever 70 is released, as shown in FIG. 6, the elastic deformation of the lock member 50 is restored and the lock member 50 moves upward. It will be. At this time, the lock member 50 comes in contact with the contact portion 82 of the biasing member 80 and receives a downward biasing force. The biasing force of the biasing member 80 is smaller than the biasing force of the locking member 50 itself, and acts to reduce the momentum of the upward movement of the locking member 50.

  Thereafter, as shown in FIG. 7, the lock member 50 moves upward while in contact with the contact portion 82 of the biasing member 80, and the lock hole 51 of the lock member 50 and the lock claw 21 of the upper rail 20 and the lower rail 30. The upper rail 20 and the lower rail 30 are locked so as not to move relative to each other. At this time, since the lock member 50 reaches the lock position while receiving the biasing force of the biasing member 80, the momentum of the operation of the lock member 50 is weakened, and the lock claw 21 of the upper rail 20 and the lock claw 31 of the lower rail 30 The hitting sound generated by being hit is reduced.

  In addition, when reaching the locked state, the contact portion 82 of the biasing member 80 is pushed upward by the locking member 50, but the biasing member 80 is interposed between the upper wall 22 of the upper rail 20 and the upper rail 20 by the intervening member 90. Since the distance is kept, the contact portion 82 of the biasing member 80 does not contact the upper wall 22 of the upper rail 20, and the locking operation is not disturbed.

  Furthermore, as the lock member 50 approaches the lock position, the direction of the biasing force received from the biasing member 80 changes from the downward direction to the lateral direction as shown in FIG. 7 as shown in FIG. The reduction of the locking force is suppressed because the resistance is weakened.

  Thus, by providing the biasing member 80, the force of the locking operation of the locking member 50 is reduced, and the noise of the lock during the locking operation is reduced.

Reference Signs List 10 seat slide device 20 upper rail 21 lock claw 22 upper wall 30 lower rail 31 lock claw 40 foot 50 lock member 51 lock hole 52 support portion 70 operation lever 71 grip portion 72 connection portion 73 operation portion 80 biasing member 81 fixing portion 82 contact Part 90 Intervening member

Claims (2)

A lower rail member fixed to the vehicle body;
An upper rail member fixed to the seat and slidably provided to the lower rail member;
A lock member having a lock hole capable of engaging and disengaging with the lower rail member and the lower rail side engaged portion and the upper rail side engaged portion of the upper rail member;
An operation member operated to switch between a locked state in which the lock member engages with the lower rail side engaged portion and the upper rail side engaged portion, and an unlocked state in which the locked state is released; Equipped with
A seat slide device characterized in that a plate-like biasing member which applies a biasing force that resists a locking operation direction in which the locking member shifts from the unlocked state to the locked state is fixed inside the upper rail member.   The biasing member is bent in a substantially H-shape, one end of which is fixed to the upper wall of the upper rail member, and the other end of which is disposed so as to be in contact with the locking member. The seat slide device according to claim 1.

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