JP2691121B2 - Seat slide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail unit composed of a vehicle body side rail fixed to an installation portion and a seat side rail fitted to the vehicle body side rail so as to be movable back and forth and supporting a seat. The present invention relates to a seat slide device having:

[0002]

2. Description of the Related Art A conventional seat slide device is disclosed in, for example, Japanese Utility Model Laid-Open No. 1-158243. That is, the slide position memory of the seat side rail is controlled by the IC, and is applied to a power seat that adjusts the front-back position of the seat by power.

[0003]

However, such a conventional seat slide device has a problem that the structure is complicated and the cost is increased. Further, in the manual type seat slide device, in addition to the locking / unlocking operation lever that operates the main latch member to make the seat side rail movable and immovable with respect to the vehicle body side rail, Since an auxiliary lever for operating the sub-latch member for the memory is provided, there is a problem that the operation is complicated and the usability is not good.

The present invention has been made in view of such conventional problems, and an object thereof is to provide a seat slide device which is simple in construction and can be reduced in cost and is easy to use. .

[0005]

The gist of the present invention for achieving the above object is to provide a vehicle body side rail (31) fixed to an installation site (10) and the vehicle body side rail (31). ) In a movable manner in the front-rear direction, and a rail unit (30) including a rail (35) on the seat side for supporting the seat (20).
One of the vehicle body side rail (31) and the seat side rail (35) is provided with an engaging portion (32) continuously provided along the longitudinal direction of the rail, a vehicle body side rail (31) and a seat side rail (35). The locking / unlocking lever (40) provided on the other side of the rail (35) with the axis of the rod shaft (41) as the longitudinal direction, the rail (31) on the vehicle body side, and the rail (35) on the seat side. When the locking / unlocking lever (40) provided on the other side is pivotally operated around the rod shaft (41), it engages and disengages with the engaging part (32) and the rail (31) on the vehicle body side and the seat side. Main latch member (50) for restraining the rail (35) of the vehicle from moving relatively, and the slide position memory mechanism (60a) provided on the other of the vehicle body side rail (31) and the seat side rail (35). And the slide position memory mechanism (60a) is Movably fitted in the axial direction to the rod axis of the lock-unlock operation lever (40) (41), and wherein the locking and unlocking operation lever (40) the main latch member (5
When the rotation operation is larger than the rotation operation in 0),
The memory sub-latch member (60) that is engaged and disengaged with the engaging portion (32) and the memory sub-latch member (60) are provided in front of and behind the axial direction, respectively, and the main latch member (50) is provided. ) Disengages from the engaging part (32),
Moreover, when the memory sub-latch member (60) is engaged with the engaging portion (32), the rail (31) on the vehicle body side
When the rail (35) on the seat side is moved with respect to the seat rail (35), the sub-latch members (60) for memory come into contact with each other at the front and rear positions in the axial direction, so that the rail (35) on the seat side is relatively narrow. Restriction member (36, 3) that restricts movement within
7) and a seat slide device characterized by having.

[0006]

When the main latch member (50) is engaged with the engaging portion (32), the rail (31) on the vehicle body side and the rail (35) on the seat side are restrained so that they cannot move relative to each other. At this time, the memory sub-latch member (60) is also engaged with the engaging portion (32). When the locking / unlocking lever (40) is rotated about the rod shaft (41), the main latch member (50) is disengaged from the engaging portion (32), and the seat side with respect to the rail (31) on the vehicle body side. The rails (35) of the can become movable. At this time, when the memory sub-latch member (60) is engaged with the engaging portion (32), when the seat side rail (35) is moved with respect to the vehicle body side rail (31). The memory sub-latch member (60) relatively moves in the axial direction of the rod shaft (41) of the locking / unlocking lever, and the regulating member (3
6, 37), the rail (35) on the seat side is restricted in movement within a relatively narrow range. As a result, the rail (35) on the seat side does not move in a wide range, so to speak, the desired slide position can be adjusted quickly and easily with reference to the memory sub-latch member (60).

When the lock / unlock operation lever (40) is rotated more than the rotation of the main latch member (50), the memory sub-latch member (60) is engaged with the engaging portion (3).
2) and when the seat side rail (35) is moved with respect to the vehicle body side rail (31), the memory sub-latch member (60) is restricted at the front and rear positions in the axial direction. The seat side rail (35) can be moved and adjusted within a wide range without abutting against the (36, 37). After the seat-side rail (35) is moved and adjusted, the locking / unlocking lever (40) is pivotally operated to disengage the main latch member (50) from the engaging portion (32), and
With the memory sub-latch member (60) engaged with the engagement portion (32), as described above, the desired slide position can be adjusted quickly and easily with reference to the memory sub-latch member (60). Good.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. 1 to 9 show an embodiment of the present invention. As shown in FIGS. 1 and 2, the seat 20 is supported on the installation site 10 via a seat slide device 30a so as to be movable back and forth. The seat slide device 30a includes a pair of rail units 30 arranged below the seat 20 with the longitudinal direction thereof being the front-rear direction. The rail unit 30 is
It comprises a vehicle body side rail 31 fixed to the installation site 10 and a seat side rail 35 fitted to the vehicle body side rail 31 so as to be movable back and forth. The rail 31 on the vehicle body side is formed in a groove-shaped cross section, and a side wall 33 of the rail 31 is provided with engaging portions 32, 32 ... In series along the longitudinal direction of the rail.

The rail 35 on the seat side has its rod shaft 4
The locking / unlocking operation lever 40 is arranged with the axis of 1 as the longitudinal direction, and the rod shaft 41 of the locking / unlocking operation lever 40 can be rotated by the hinge bracket 36 and the upper bracket 37 fixed to the front and rear of the seat side rail 35. Supported by. The rod shaft 41 of the locking / unlocking operation lever 40 is formed with a ridge 42 that projects in the radial direction and extends in the axial direction.
When the locking / unlocking lever 40 is rotated around the rod shaft 41, the rail 35 on the seat side is engaged with and disengaged from the engaging portion 32, and the rail 31 on the vehicle body side and the rail 35 on the seat side relatively move. The main latch member 50 for restraining immobility is fixed. The main latch member 50 is the seat side rail 3
5 by the leaf spring member 38 fixed to the main surface
It is urged in a direction to engage with 2, 32, ....

As shown in FIGS. 1 and 3 to 5, the rail 35 on the seat side is provided with a slide position memory mechanism 60a. The slide position memory mechanism 60a has a sub latch member 60 for memory. The memory sub-latch member 60 is supported by the rod shaft 41 via a sliding member 65 having a C-shaped cross-section that is fitted to the rod shaft 41 of the locking / unlocking operation lever 40 so as to be movable in the axial direction.
The ridge 42 of the locking / unlocking operation lever 40 projects through the opening of the sliding member 65 so that it can come into contact with the rim of the opening of the C-shaped cross section when the rod shaft 41 rotates. The memory sub-latch member 60 is biased by a coil spring 66 wound around the rod shaft 41 in a direction in which it engages with the engaging portions 32. Further, the coil spring 66 urges the sliding member 65 in the direction of pulling it toward the hinge bracket 36.

The memory sub-latch member 60 is arranged between the hinge bracket 36 and the upper bracket 37 in the axial direction of the rod shaft 41 and relatively moves the memory sub-latch member 60 in the axial direction of the rod shaft 41. When you go
The hinge bracket 36 and the upper bracket 37 are in contact with the memory sub-latch member 60 to restrict the movement of the seat-side rail 35, and the hinge bracket 36 and the upper bracket 37 serve as a restricting member. There is.

Next, the operation will be described. Main latch member 5
When 0 is engaged with the engaging portion 32, the rail 3 on the vehicle body side
1 and the seat-side rail 35 are constrained so that they cannot move relative to each other. At this time, the memory sub-latch member 60 is also engaged with the engaging portion 32. When the locking / unlocking lever 40 is rotated about the rod shaft 41, the main latch member 50 is disengaged from the engaging portion 32 and the seat side rail 35 is disengaged from the vehicle body side rail 31, as shown in FIG. Can be moved. At this time, the protrusion 4 of the locking / unlocking operation lever 40
As shown in FIG. 7, the memory sub-latch member 60 is engaged with the engaging portion 32 by simply moving 2 from one edge of the opening of the sliding member 65 having the C-shaped cross section to the other edge. It is still done. In this state, when the rail 35 on the seat side is moved with respect to the rail 31 on the vehicle body side, the memory sublatch member 60 relatively moves in the axial direction of the rod shaft 41 of the locking / unlocking lever, and the axial direction. Abut the hinge bracket 36 and the upper bracket 37 at the front and rear positions, respectively,
The movement of the seat-side rail 35 is restricted within a relatively narrow range. As a result, the seat-side rail 35 does not move in a wide range, so to speak, the desired slide position can be adjusted quickly and easily with reference to the memory sub-latch member 60.

If the sliding position when the memory sub-latch member 60 abuts on the hinge bracket 36 or the upper bracket 37 is set to a seated person's favorite position, the memory sub-latch member 60 is moved to the hinge bracket 36 or. If the main latch member 50 and the memory sub-latch member 60 are respectively engaged with the engaging portions 32 by contacting the upper bracket 37 and operating the locking / unlocking operation lever 40, the slide position can be adjusted more easily. You can When the locking / unlocking lever 40 is rotated more than the rotation of the main latch member 50, the protrusion 42 pushes down the edge of the opening of the sliding member 65 having the C-shaped cross section, and the coil spring 66 is attached. When the memory sub-latch member 60 is disengaged from the engaging portion 32 via the sliding member 65 as shown in FIG.
When moving the seat side rail 35 with respect to 1,
The memory sub-latch member 60 is provided on the seat side rail 35.
Therefore, the seat-side rail 35 can be moved and adjusted within a wide range without contacting the hinge bracket 36 and the upper bracket 37 at the front and rear positions in the axial direction. At this time, the main latch member 50 is largely disengaged from the engaging portion 32, as shown in FIG.

After the rail 35 on the seat side is moved and adjusted, the locking / unlocking lever 40 is rotated to disengage the main latch member 50 from the engaging portion 32, and the memory sub-latch member 60 is engaged. The desired slide position may be adjusted quickly and easily with the sub-latch member 60 for memory as a reference, with the portion 32 engaged. In the embodiment described above, the memory sub-latch member 60 is brought into contact with the hinge bracket 36 and the upper bracket 37 at the front and rear positions in the axial direction, respectively, and the existing hinge bracket 36 and the upper bracket 37 constitute a regulating member. However, it may be constituted by a separate member.

[0015]

According to the seat slide device of the present invention, when the locking / unlocking lever is rotated about the rod shaft, the main latch member is disengaged from the engaging portion and the seat is seated against the rail on the vehicle body side. Side rails can be moved,
When the memory sub-latch member is engaged with the engaging portion,
When the seat side rail is moved relative to the vehicle body side rail, the memory sub-latch member relatively moves in the axial direction of the rod shaft of the locking / unlocking lever, and is regulated at the front and rear positions in the axial direction. Since the rail on the seat side is regulated to move within a relatively narrow range by contacting the member, the rail on the seat side does not move in a wide range, so to speak, it is desired based on the memory sub-latch member. The slide position of can be adjusted quickly and easily. Further, since the main latch member and the memory sub-latch member are respectively engaged and disengaged with the engaging portion by the turning operation of one locking / unlocking lever, there is no need to newly provide a member, and a simple structure is achieved. can do.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a seat slide device showing an embodiment of the present invention.

FIG. 2 is a mounting state diagram of the seat slide device showing the embodiment of the present invention.

FIG. 3 is an explanatory diagram of a slide position memory mechanism showing an embodiment of the present invention.

FIG. 4 is an explanatory diagram of a slide position memory mechanism showing an embodiment of the present invention.

FIG. 5 is an explanatory diagram of a slide position memory mechanism showing an embodiment of the present invention.

FIG. 6 is an operation explanatory view of the slide device showing the embodiment of the present invention.

FIG. 7 is an operation explanatory view of the slide device showing the embodiment of the present invention.

FIG. 8 is an operation explanatory view of the slide device showing the embodiment of the present invention.

FIG. 9 is an operation explanatory view of the slide device showing the embodiment of the present invention.

[Explanation of symbols]

 10 ... Installation site 20 ... Seat 30a ... Seat slide device 30 ... Rail unit 31 ... Car body side rail 32 ... Engagement part 35 ... Seat side rail 36 ... Hinge bracket (regulating member) 37 ... Upper bracket (regulating member) 40 Locking / unlocking operation lever 41 ... Rod shaft 50 ... Main latch member 60a ... Sliding position memory mechanism 60 ... Memory sub-latch member 65 ... Sliding member

Claims (1)

(57) [Claims] A vehicle-side rail fixed to an installation portion;
A seat slide device comprising a rail unit, which is fitted to a rail on the vehicle body side so as to be movable back and forth and has a rail on the seat side for supporting a seat, wherein one of the rail on the vehicle body side and the rail on the seat side is provided. , An engaging portion continuously provided along the longitudinal direction of the rail, a locking / unlocking operation lever provided on the other of the vehicle body side rail and the seat side rail with the axis of the rod axis in the longitudinal direction, It is provided on the other side of the side rail and the seat side rail,
A main latch member that engages with and disengages from the engaging portion and restrains the rail on the vehicle body side and the rail on the seat side so that they cannot move relative to each other when the locking / unlocking lever is rotated about the rod axis. A slide position memory mechanism provided on the other of the rail and the seat side rail, the slide position memory mechanism is fitted to the rod shaft of the locking / unlocking lever so as to be movable in the axial direction, and When the locking / unlocking lever is pivoted more than the pivoting operation of the main latch member, the memory sub-latch member engages / disengages with the engaging portion, and the axis line is interposed between the memory sub-latch member. Seated on the rails on the vehicle body side when the main latch member is disengaged from the engaging portion and the memory sub-latch member is engaged with the engaging portion. When the rail on the side is moved, the memory sub-latches come into contact with each other at the front and rear positions in the axial direction, and a regulation member for regulating movement of the seat-side rail within a relatively narrow range is provided. Seat slide device.