JP5748143B2 - Sliding device for vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat slide device, and more particularly, to a vehicle seat slide device capable of adjusting a lock position of a slide of an upper rail relative to a lower rail by unlocking a lock mechanism when a handle is operated.

  Conventionally, when the lower rail of the passenger seat that is the first vehicle seat and the lower rail of the second row seat that is the second vehicle seat are combined, There is already known a vehicular seat slide device capable of sliding the front passenger seat largely from the front slide lock region to the second row slide lock region. In such a sliding device, when the slid passenger's seat reaches the boundary between both lock areas (the front slide lock area and the second row slide lock area), an auxiliary lock mechanism that once regulates the slide Is provided. Accordingly, it is possible to prompt the passenger in the second row seat to be alerted so that the slid passenger seat does not interfere with the passenger in the second row seat. Here, Patent Document 1 below discloses a technique in which the auxiliary lock mechanism is configured by a stopper that can be attached to and detached from the lower rail. Thereby, the auxiliary lock mechanism can be operated with a simple structure.

Patent No.3400066

  However, in the technique of Patent Document 1 described above, since the stopper can be attached to and detached from the lower rail, the usability of the auxiliary lock mechanism is poor.

  The present invention intends to solve such a problem, and its object is to slide the first vehicle seat when the first vehicle seat is largely slid to the slide lock region of the second vehicle seat. To provide a vehicle seat slide device with improved usability even when an auxiliary lock mechanism for restricting the slide is provided once the vehicle seat reaches the boundary between both lock regions. It is.

The present invention is for achieving the above object, and is configured as follows.
According to a first aspect of the present invention, there is provided a lower rail assembled on the vehicle floor side, an upper rail assembled on the first vehicle seat side so as to be slidable with respect to the lower rail, and a lock mechanism capable of locking the slide of the upper rail with respect to the lower rail. And a handle for unlocking the lock mechanism. When the handle is operated, the lock mechanism is unlocked and the lock position of the slide of the upper rail relative to the lower rail can be adjusted. The upper rail of the vehicle seat and the upper rail of the second vehicle seat behind the first vehicle seat are shared so that they can slide, and the upper rail slide lock of the first vehicle seat is locked. Area and slide lock area of the upper rail of the second vehicle seat When the upper rail of the first vehicle seat is slid so as to straddle the, the upper rail is slid to reach the boundary between the two lock area, a first vehicle seat of the upper rail of the slide regulation of auxiliary lock mechanism relative to the lower rail An auxiliary lock mechanism is pivotally attached to a bracket provided at a boundary between both lock regions of the lower rail and an upper rail of the first vehicle seat so as to be hooked to the bracket. A latch, a pole pivotally attached to the upper rail of the first vehicle seat so as to be able to ride on the bracket, and a release lever connected to the pole, and the lock mechanism is unlocked by operating the handle. Go and slide the upper rail of the first vehicle seat so that the pole rides on the bracket That when, to restrict rotation of the latch the riding Paul is caught on the bracket, a construction which is characterized in that released by operating the release lever the regulations.
According to this configuration, since the auxiliary lock mechanism is assembled so as to be integrated with the lower rail and the upper rail of the first vehicle seat, the auxiliary lock mechanism is not required to be attached or detached. It can be switched to the locked state. Therefore, the usability of the auxiliary lock mechanism can be improved.

The invention according to claim 2 is the sliding device for the vehicle seat according to claim 1, wherein the auxiliary lock mechanism itself regulates the sliding of the upper rail of the first vehicle seat. The upper rail of the first vehicle seat can be returned to the state before the slide.
According to this configuration, when the first vehicle seat reaches the unlock region and the auxiliary lock mechanism is in the locked state, even if the slide is forgotten and returned, the lock state of the auxiliary lock mechanism can be simplified. Without having to perform an operation for switching to an unlocked state).

FIG. 1 is a configuration diagram showing the interior of a vehicle to which a passenger seat slide device according to an embodiment of the present invention is applied. FIG. 2 is a schematic diagram of the auxiliary lock mechanism for the passenger seat in FIG. 1 and shows a state where the passenger seat is locked in the lock area of the front slide (the lock state of the lock mechanism). 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is a diagram in which, from the state shown in FIG. 2, the handle is operated to switch the lock mechanism to the unlocked state and the passenger seat is slid rearward. FIG. 5 is a diagram showing a state in which the passenger seat is slid toward the slide lock region of the second row seat from the state shown in FIG. 4 and the slide is regulated by the auxiliary lock mechanism. FIG. 6 is a diagram illustrating a state in which the restriction of the slide by the auxiliary lock mechanism is released from the state illustrated in FIG. 5. FIG. 7 is a diagram illustrating a state in which the passenger seat is slid toward the lock region of the slide of the second row seat from the state illustrated in FIG. 6.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In the following description, “passenger seat 1” will be described as an example of “first vehicle seat”. Similarly, the “second row seat 101” will be described as an example of the “second vehicle seat”. In the following description, the terms “up”, “down”, “front”, “rear”, “left” and “right” refer to the directions of “up”, “down”, “front”, “rear”, “left” and “right” described in the above-mentioned figures. The direction of up, down, front, back, left and right is shown.

  First, with reference to FIGS. 1-3, the sliding apparatus 2 of the passenger seat 1 which concerns on the Example of this invention is demonstrated. The slide device 2 includes a pair of slide rails 3, a lock mechanism 4, and an auxiliary lock mechanism 5. Hereinafter, the pair of slide rails 3, the lock mechanism 4, and the auxiliary lock mechanism 5 will be described individually.

  First, the pair of slide rails 3 will be described. The pair of slide rails 3 includes a pair of lower rails 10 and a pair of upper rails 20 that are slidably assembled to the pair of lower rails 10. The pair of lower rails 10 are respectively fixed to the vehicle floor F. On the other hand, this pair of upper rails 20 is also fixed to a cushion frame (not shown) of the seat cushion 1 a of the passenger seat 1.

  Thereby, the passenger seat 1 can be slid back and forth with respect to the vehicle floor F. The pair of lower rails 10 also serves as that of the second row seat 101 (lower rail), as is apparent from FIG. That is, the pair of lower rails 10 is shared by the passenger seat 1 and the second row seat 101. Thereby, if the 2nd row sheet | seat 101 is slid largely back, the passenger seat 1 can also be slid back largely. The pair of slide rails 3 is configured in this way.

  Next, the lock mechanism 4 will be described. The lock mechanism 4 is a well-known one and includes a handle (not shown) and a pair of engaging claws 22 connected to the handle via a cable (not shown).

  The handle is composed of a lever member that can be directly raised by an occupant. On the other hand, the engaging claw 22 is constituted by a claw member whose tip can be inserted into the engaging hole 12 of the lower rail 10 and the engaging hole 24 of the upper rail 20. The engaging claw 22 is pivotally attached to the upper rail 20 in a state of being biased in the insertion direction. When the tip of the engaging claw 22 is inserted into the engaging hole 12 of the lower rail 10 and the engaging hole 24 of the upper rail 20 (when the state shown in FIG. 2 is reached), the slide of the passenger seat 1 is locked ( The lock mechanism 4 is locked).

  These handles and the engaging claws 22 are connected via the cable as described above. Therefore, when the cable is pulled by operating the handle, the engaging claw 22 rotates against the urging force acting on the engaging claw 22 itself. As a result, the engaging claw 22 rotates in a direction in which the tip thereof is removed from the engaging hole 12 of the lower rail 10 and the engaging hole 24 of the upper rail 20, so that the slide of the passenger seat 1 is unlocked (the lock mechanism 4 Unlocked state). In this unlocked state, the passenger seat 1 can be slid. When the operation of the handle is returned, the lock mechanism 4 is also returned to the locked state.

  A plurality of engagement holes 12 of the lower rail 10 are formed along the sliding direction of the passenger seat 1. Thereby, the passenger seat 1 can be locked at a desired slide position. This description corresponds to “adjusting the slide lock position” described in the claims. Of the plurality of main engagement holes 12 formed, the one corresponding to the lock area of the front slide (usually, the lock area of the slide used by the passenger seat 1) is attached to the engagement hole 12a, and the second row The one corresponding to the lock area of the slide (usually the slide lock area used by the second row sheet 101) is attached to the engagement hole 12b (see FIG. 1).

  For convenience of explanation, an area between the lock area of the front slide and the lock area of the slide in the second row (an area facing the pillar of the vehicle body) will be referred to as an unlock area. The lock mechanism 4 includes these handles and a main engagement claw 22. The second row seat 101 is also configured to be locked at a desired slide position, like the passenger seat 1 described above.

  Finally, the auxiliary lock mechanism 5 will be described with reference to FIGS. The auxiliary lock mechanism 5 includes a bracket 30, a latch 32, a pole 34, and a release lever (not shown). These constituent members (the bracket 30, the latch 32, the pole 34, and the release lever) are provided so as to form a pair with the pair of slide rails 3.

  However, among these components (the bracket 30, the latch 32, the pole 34, and the release lever), the bracket 30, the latch 32, and the pole 34 are provided so as to form a front-rear object on the left and right sides of the pair. It has been. That is, for example, if FIG. 2 shows the outer slide rail 3 of the pair of slide rails 3 of the passenger seat 1, the inner slide rail 3 has a bracket 30, a latch 32, and a pole 34. Is the arrangement of the front and rear objects of FIG.

  The bracket 30 is an interference member formed from the unlock region to the lock region of the slide in the second row on the bottom surface of the lower rail 10.

  The latch 32 is formed of a hooking member that can hook its tip 32 a to the bracket 30. The latch 32 is pivotally attached to the upper rail 20 in a state of being biased via a torsion spring (not shown) in a direction in which the tip 32a is hooked on the bracket 30 (the arrow direction in FIG. 2). . The latch 32 is rotated by the stopper 32b so that when the passenger seat 1 is slid from the lock area of the front slide to the lock area of the slide in the second row, the front end 32a is caught by the bracket 30. Is regulated by.

  The pole 34 includes a restricting member that restricts the rotation of the latch 32 when the outer peripheral surface 34 a rides on the bracket 30. The pole 34 is also pivotally attached to the upper rail 20 in a state of being biased via a torsion spring (not shown) in the same direction as the biasing direction of the latch 32 (the arrow direction in FIG. 2). .

  The pole 34 is pivotally attached to the upper rail 20 on the same plane so that the outer peripheral surface 34 a can interfere with the outer peripheral surface 32 c of the latch 32. Further, when the passenger seat 1 is slid from the lock area of the front slide to the lock area of the slide in the second row, the rotation of the pawl 34 is stopped so that the outer peripheral surface 34a rides on the bracket 30. 34b.

  The release lever is composed of a lever member that can be directly raised by the occupant. The release lever is connected to the pole 34 via a cable (not shown). Thus, as will be described later, when the outer peripheral surface 34a of the pole 34 and the outer peripheral surface 32c of the latch 32 interfere with each other, when the release lever is operated, the bias is applied to the pole 34 itself. It can be rotated in the direction opposite to the direction.

  The auxiliary lock mechanism 5 includes these brackets 30, a latch 32, a pole 34, and a release lever (not shown).

  Next, with reference to FIGS. 1, 2, and 4 to 7, the operation of the slide device 2 including the pair of slide rails 3, the lock mechanism 4, and the auxiliary lock mechanism 5 will be described. In this description, the outer side of the slide device 2 will be described.

  First, as shown in FIGS. 1 and 2, the passenger seat 1 is locked in the lock area of the front slide (in FIG. 1, the passenger seat 1 is shown by a solid line (A) and shown in FIG. From the state, the occupant performs the work that causes the steering wheel. Then, as already explained, since the lock mechanism 4 is switched from the locked state to the unlocked state, the passenger seat 1 can be slid rearward. Next, the passenger performs an operation of sliding the passenger seat 1 backward.

  When the pole 34 reaches the bracket 30 of the lower rail 10 by this slide (when the passenger seat 1 reaches the state indicated by the imaginary line (B) in FIG. 1), the outer peripheral surface 34a starts to ride on the bracket 30 (FIG. 4). reference). Thereafter, when the outer peripheral surface 34a of the pole 34 completely rides on the bracket 30, the outer peripheral surface 34a of the pole 34 and the outer peripheral surface 32c of the latch 32 interfere with each other. Thereby, the rotation of the latch 32 in the direction opposite to the biasing direction acting on the latch 32 itself is restricted.

  Further, when the passenger seat 1 is slid rearward, the tip 32a of the latch 32 interferes with the bracket 30 (see FIG. 5). Then, as described above, since the rotation of the latch 32 is restricted, further sliding of the passenger seat 1 is also restricted. As a result, the auxiliary lock mechanism 5 is switched from the unlocked state to the locked state. Therefore, the slide of the passenger seat 1 is regulated at the boundary between the lock area of the front slide and the lock area of the slide in the second row (in FIG. 1, the passenger seat 1 is in an imaginary line (B)). In the state indicated by, it becomes a regulated state).

  In this locked state (restricted state), the slidable passenger seat 1 can be returned to the front, as is apparent from FIG. This description is described in the claims “Even when the auxiliary lock mechanism itself regulates the sliding of the upper rail of the first vehicle seat, the upper rail of the first vehicle seat is in a state before the sliding. This is equivalent to “can be returned”.

  Next, the occupant performs the operation of operating the release lever. Then, as already explained, the pole 34 can be rotated in the direction opposite to the biasing direction of the pole 34 itself (see FIG. 6). Thereby, the restriction | limiting of the rotation of the latch 32 mentioned above can be cancelled | released. Therefore, when the passenger seat 1 is further slid rearward (see FIG. 7), the latch 32 also rotates against the urging force of the torsion spring acting on the latch 32 itself so that the tip 32a rides on the bracket 30. I will do it. In this rotated state, the occupant may return the operation of the release lever.

  Eventually, when the passenger seat 1 is slid to a desired position (when the passenger seat 1 is slid to the state indicated by the imaginary line (C) in FIG. 1), the occupant returns the operation of the steering wheel and the lock mechanism 4 The engagement claw 22 of the upper rail 20 of the passenger seat 1 is engaged with the engagement hole 12 of the lower rail 10 and the engagement hole 24 of the upper rail 20. In this way, the passenger seat 1 can be largely slid rearward from the lock area of the front slide to the lock area of the second row slide.

  The slide may be returned by performing the same operation as described above on the inner side of the slide device 2. Then, the passenger seat 1 can be largely slid forward from the lock area of the slide in the second row to the lock area of the front slide. At this time, in the same manner as described above (explaining that the passenger seat 1 is largely slid backward from the front slide lock region to the second row slide lock region), the front slide lock region and the second row The slide of the passenger seat 1 can be restricted once at the boundary with the slide lock area.

  The slide device 2 of the passenger seat 1 according to the embodiment of the present invention is configured as described above. According to this configuration, when the passenger seat 1 is largely slid rearward from the lock area of the front slide toward the lock area of the slide in the second row by operating the handle, the passenger seat 1 becomes the unlock area. When reaching, even if the lock mechanism 4 is in the unlocked state, the auxiliary lock mechanism 5 is switched to the locked state, so that the sliding of the passenger seat 1 can be restricted. Therefore, similarly to the prior art, it is possible to prompt the passenger in the second row seat 101 to call attention. In order to return the auxiliary lock mechanism 5 from the locked state to the unlocked state, it is only necessary to operate the release lever. Therefore, as compared with the prior art, no detachable member or the like is required, so that the usability of the auxiliary lock mechanism 5 can be improved.

  Further, according to this configuration, in the locked state of the auxiliary lock mechanism 5 (the state in which the sliding of the passenger seat 1 is regulated by the auxiliary lock mechanism 5), the passenger seat 1 slid rearward can be returned to the front. Therefore, the passenger seat 1 is largely slid rearward from the lock area of the front slide toward the lock area of the second row, the passenger seat 1 reaches the unlock area, and the auxiliary lock mechanism 5 is locked. In this case, even if the slide is given up and returned, it can be easily returned (without requiring an operation for switching the lock state of the auxiliary lock mechanism 5 to the unlocked state).

The contents described above are only related to one embodiment of the present invention, and do not mean that the present invention is limited to the above contents.
In the embodiment, “front passenger seat 1” has been described as an example of “first vehicle seat”, and “second row seat 101” has been described as an example of “second vehicle seat”. However, the present invention is not limited to this. Even if the “first vehicle seat” is the “second row seat” and the “second vehicle seat” is the “third row seat”, I do not care.

1 Passenger seat (first vehicle seat)
2 Slide device 4 Lock mechanism 5 Auxiliary lock mechanism 10 Lower rail 20 Upper rail 30 Bracket 32 Latch 34 Pole F Vehicle floor

Claims (2)

A lower rail assembled on the vehicle floor side, an upper rail assembled on the first vehicle seat side so as to be slidable with respect to the lower rail, a lock mechanism capable of locking the slide of the upper rail with respect to the lower rail, and for unlocking the lock mechanism And the lock mechanism is unlocked when the handle is operated, and the lock position of the slide of the upper rail relative to the lower rail can be adjusted. The lower rail includes an upper rail of the first vehicle seat and a first rail. The upper rail of the second vehicle seat behind the vehicle seat can be slid, and the lock region of the slide of the upper rail of the first vehicle seat and the second vehicle seat first vehicle so as to straddle the slide lock region of the upper rail When the upper rail of the seat is slid, when the slid upper rail reaches the boundary between the two lock regions, the sliding of the vehicle seat having an auxiliary lock mechanism capable of restricting the sliding of the upper rail of the first vehicle seat with respect to the lower rail A device,
The auxiliary lock mechanism includes a bracket provided at the boundary between both lock regions of the lower rail,
A latch pivotally attached to the upper rail of the first vehicle seat so as to be hooked to the bracket;
A pole pivotally attached to the upper rail of the first vehicle seat so as to be able to ride on the bracket;
A release lever connected to the pole,
When the handle is operated to unlock the lock mechanism and the upper rail of the first vehicle seat is slid and the pole rides on the bracket, the raised pole restricts the rotation of the latch that is hooked on the bracket. A vehicle seat slide device, wherein the restriction is released by operating a release lever. The vehicle seat slide device according to claim 1,
A vehicle characterized in that the upper rail of the first vehicle seat can be returned to the state before the slide even when the auxiliary lock mechanism itself restricts the slide of the upper rail of the first vehicle seat. Sheet slide device.

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