JP2021008244A - Seat slide mechanism - Google Patents

Abstract

To provide a seat slide mechanism which prevents a fastener from catching in a foreign matter.SOLUTION: A seat slide mechanism 1 includes a seat cushion frame 16 for supporting a seating surface of a seat 10, a slide rail 40 arranged on the lower side of a vehicle body carpet 30, and a connection member 24 for connecting the seat cushion frame 16 and the slide rail 40, in which the connection member 24 can be moved along the slide rail 40 and passes through a slit S provided on the vehicle body carpet 30 and extends to the upward seat cushion frame 16, a head-facing fastener 31 blocking the slit S is mounted along the slit S, and the upper side of the head-facing fastener 31 is covered with a cover 32.SELECTED DRAWING: Figure 5

Description

The present invention relates to a seat sliding mechanism.

Vehicles such as automobiles may be provided with a seat slide mechanism for allowing the seat to be slid and moved in the front-rear direction and the left-right direction of the vehicle.
As for the seat slide mechanism, for example, a slide rail is arranged under the vehicle body carpet so as to extend in the front-rear direction and the left-right direction of the vehicle so that the seat can move in the front-rear direction and the left-right direction of the vehicle along the slide rail. It is composed of.

At that time, the body carpet may be provided with a slit parallel to the slide rail, and when the seat is moved, the connecting member connecting the slide rail and the seat may be configured to move along the slit in the slit. There are many.
However, if the vehicle body carpet is provided with the slit in this way, there is a possibility that foreign matter may enter the slit or fall to the underside of the vehicle body carpet through the slit.

Therefore, for example, in Patent Documents 1 and 2, by attaching a fastener (head-to-head fastener) to the slit of the vehicle body carpet and closing the fastener except for the portion through which the connecting member passes, the above problem does not occur. The technology to make is disclosed.
Note that Patent Documents 1 and 2 describe a case where the vehicle body carpet is provided with two slits per sheet. For example, as described in Patent Document 3, the vehicle body carpet is provided with one seat. Even if one slit is provided in the slit, the fastener can be similarly configured to be attached to the slit.

Jikkai Sho 62-97044 Jikkenhei 7-355162 Jitsukaisho 61-169834

However, if the fasteners are attached to the slits provided in the vehicle body carpet as described above, the fasteners provided in the vehicle body carpet can be visually recognized by the occupants and the like, which may result in poor appearance.
In addition, the fastener may bite foreign matter such as dust.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a seat sliding mechanism in which fasteners are prevented from biting foreign substances.

In order to solve the above problems, the invention according to claim 1 is a seat slide mechanism.
A seat cushion frame that supports the seating surface of the seat and
The slide rails placed under the body carpet and
A connecting member that connects the seat cushion frame and the slide rail,
With
The connecting member is movable along the slide rail, and extends toward the upper seat cushion frame through a slit provided in the vehicle body carpet.
A head-to-head fastener that closes the slit is attached to the slit along the slit.
The upper side of the head-to-head fastener is covered with a cover.

The invention according to claim 2 is the sliding mechanism of the sheet according to claim 1, wherein the connecting member is a gap formed between two sliders of the head-to-head fastener and between elements of the head-to-head fastener. It is characterized by being inserted into.

The invention according to claim 3 is the sheet sliding mechanism according to claim 1 or 2.
A recess is formed on the upper surface of the vehicle body carpet in the thickness direction thereof.
The slit is provided in the recess and is provided.
The head-to-head fastener is arranged in the recess.
The cover is disposed above the head-to-head fastener.

The invention according to claim 4 is characterized in that, in the seat sliding mechanism according to claim 3, the cover is arranged so that the lower end in the thickness direction is below the upper surface of the vehicle body carpet. And.

The invention according to claim 5 is characterized in that, in the sheet sliding mechanism according to any one of claims 1 to 4, the cover is formed of an elastic member.

The invention according to claim 6 is the sheet sliding mechanism according to any one of claims 1 to 5, wherein the cover has one end side in the width direction of the tapes on both sides of the head-to-head fastener. It is attached to one of the tapes, and is characterized in that the other end side in the width direction is arranged so as to extend beyond the element of the head-to-head fastener to the other tape side of the head-to-head fastener.

According to the invention of claim 7, in the sheet sliding mechanism according to any one of claims 1 to 6, the frictional resistance of the back surface of the cover in contact with the connecting member is reduced. It is characterized by.

The invention according to claim 8 is characterized in that, in the sheet sliding mechanism according to claim 7, a protruding portion that comes into contact with the head-to-head fastener is formed on the back surface of the cover.

The invention according to claim 9 is the seat sliding mechanism according to any one of claims 1 to 8, wherein the connecting member is engaged with the two sliders of the head-to-head fastener, and the second. It is characterized in that a case for moving the slider along the head-to-head fastener in accordance with the movement of the connecting member is attached.

The invention according to claim 10 is the sheet sliding mechanism according to any one of claims 1 to 9.
For one sheet
Two slide rails are arranged,
One slit is arranged between the two slide rails in a plan view.
The connecting member is provided below the central portion of the seat cushion frame in a plan view.

According to the first aspect of the present invention, since the head-to-head fastener that closes the slit of the vehicle body carpet is hidden by the cover, it is possible to prevent the fastener from biting foreign matter.

According to the second aspect of the present invention, even if a head-to-head fastener or a cover is attached to the slit of the vehicle body carpet, the connecting member can be accurately inserted into the slit.

According to the third aspect of the present invention, the head-to-head fastener is suppressed from protruding upward from the vehicle body carpet, and the cover is suppressed from protruding upward from the vehicle body carpet more than necessary.

According to the fourth aspect of the invention, the cover provided on the vehicle body carpet becomes inconspicuous, and the appearance of the vehicle body carpet or the like is improved.

According to the invention of claim 5, if the connecting member moves, the cover is easily turned up, and if the connecting member disappears, the cover easily returns to the position of covering the upper side of the original head-to-head fastener. ..

According to the invention of claim 6, it is possible to cover the entire head-to-head fastener with a cover.

According to the invention of claim 7, the frictional resistance when the connecting member slides with respect to the back surface of the cover is reduced, and the slidability is improved.

According to the eighth aspect of the present invention, the protruding portion abuts on the element of the head-to-head fastener, and the main body of the cover does not abut on the head-to-head fastener, so that the durability of the cover can be improved.

According to the invention of claim 9, when the connecting member moves with the movement of the seat, the two sliders of the head-to-head fastener move along the head-to-head fastener with the movement of the connecting member depending on the case. It is possible to form a state of

According to the invention of claim 10, when the connecting member is provided below the central portion of the seat cushion frame of the seat in a plan view, the head-to-head fastener is a gap below the seat between the elements of the head-to-head fastener. Is formed, and no gaps are formed elsewhere. Then, the gap is covered with the sheet from above. Therefore, it is possible to prevent foreign matter from entering the gap and being bitten by the fastener, or preventing foreign matter from falling from the gap to the lower side of the vehicle body carpet.

It is an external perspective view which shows the structural example of a sheet. It is a side view which shows the structural example of the slide mechanism of the sheet which concerns on this embodiment. It is a perspective view which shows the structural example of the slide mechanism of the sheet which concerns on this embodiment. It is the figure which looked at the seat and the car body carpet from above. It is an enlarged plan view which shows the structure of the head-to-head fastener, the cover, etc. in the sheet slide mechanism which concerns on this embodiment. FIG. 5 is a cross-sectional view taken along the line XX in FIG. (A) It is a figure which shows the structural example of the cover which projected part formed on the back surface, and is the cross-sectional view which follows the YY line in (B) (A). It is a figure which shows the structural example of the case (A), and is the figure which shows the state which the slider is fixed to the engaging part of a case. It is a figure which shows the configuration example in which a seat is provided with a plurality of connecting members, two slide rails are arranged, and two slits are also provided on a vehicle body carpet.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, although the embodiments described below are provided with various technically preferable limitations for carrying out the present invention, the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Absent.

First, a sheet to be slid by the slide mechanism according to the present embodiment will be described. FIG. 1 is an external perspective view showing a configuration example of the sheet.
In the present embodiment, the case where the seat 10 is a seat for a vehicle such as a passenger car will be described, but it may be a seat for a vehicle other than an automobile such as a railroad, a ship, or an aircraft. Further, in the following, each direction of front / rear, left / right, and up / down will be described according to each direction of front / rear, left / right, and up / down of the vehicle.

The seat 10 supports the seat cushion 11 which is the seating surface of the occupant, the seat back 12 whose lower end is supported by the seat cushion 11 and serves as the backrest, the headrest 13 which supports the occupant's head, and the occupant's arm. It is equipped with an armrest 14 for supporting the occupant's legs and an ottoman 15 for supporting the occupant's legs.
The seat cushion 11 and the like are formed so that a cushion pad (not shown) is covered with a skin.

In this configuration example, the seat cushion 11 can electrically perform an undulating rotation operation (tilt operation) by an electric tilt mechanism (not shown). In addition, in FIG. 1 and FIGS. 2 and 3 described later, the seat cushion 11 and the seat cushion frame 16 are shown in a state of being undulated by the tilt operation.
The seat back 12 can be electrically rotated (reclining) by an electric reclining mechanism (not shown). At that time, when the seat back 12 rotates and tilts backward, the armrest 14 rotates relative to the seat back 12 in conjunction with it, and the direction of the armrest 14 is maintained in a substantially horizontal direction. It has become like.

The headrest 13 can be electrically lifted and lowered by an electric lifting mechanism (not shown). Further, the headrest 13 has built-in accessories such as a speaker (not shown).
The ottoman 15 can be electrically deployed (not shown).
Further, in this configuration example, the entire seat 10 is configured to be able to rotate in a substantially horizontal direction about the connecting member 24 described later, which will be described later.

Next, the seat slide mechanism will be described.
FIG. 2 is a side view showing a configuration example of the seat slide mechanism 1 according to the present embodiment, and FIG. 3 is a perspective view. Further, FIG. 4 is a view of the seat, the vehicle body carpet, and the like as viewed from above. Note that S and f in FIG. 4 will be described later.

The seat cushion 11 (see FIG. 1) is configured by covering the cushion pad (not shown) arranged on the seat cushion frame 16 as a skeleton with the skin together with the frame. That is, the seat cushion frame 16 supports the seat cushion 11, which is the seating surface of the seat 10, from below.
The seat back 12 (see FIG. 1) is also configured by covering the cushion pad (not shown) arranged on the seat back frame 17 with the skin together with the frame.

On the other hand, in this configuration example, two slide rails 40, 40 are arranged for one seat 10 on the lower side of the vehicle body carpet 30 attached to the upper surface of the floor F, and the two slide rails 40, The 40s are arranged parallel to each other so as to extend in the front-rear direction.
The rotating device 20 is arranged on the slide rails 40, 40, and the seat cushion frame 16 is fixed on the upper side of the rotating device 20.

Specifically, in the rotating device 20, a flat plate-shaped rotating portion 22 is arranged above the flat plate-shaped support portion 21 via a rotating mechanism, and the rotating portion 22 and the flat plate-shaped fixing portion 23 above the rotating portion 22 are arranged. And are connected by a cylindrical connecting member 24 extending in the vertical direction.
The support portion 21 is provided with wheels at both left and right ends on the lower side, and when each wheel moves on the two slide rails 40, 40, the connecting member 24 and the seat 10 move on the slide rails 40, 40. It is possible to move in the front-back direction along the. For example, if the slide rails 40 and 40 are arranged so as to extend in the left-right direction, the seat 10 and the like can move in the left-right direction.

Then, the seat cushion frame 16 of the seat 10 is fixed on the upper side of the fixing portion 23. At that time, as shown in FIG. 4, the connecting member 24 is provided below the central portion of the seat cushion frame 16 of the seat 10 in a plan view.
As described above, in the seat slide mechanism 1 according to the present embodiment, the seat cushion frame 16 and the slide rails 40, 40 are connected by the connecting member 24 or the like of the rotating device 20, and the connecting member 24 is connected to the slide rail 40, It is possible to move along 40.

Further, in this configuration example, the rotating portion 22, the fixing portion 23, and the connecting member 24 can be integrally rotated with respect to the supporting portion 21 by a rotating mechanism with the connecting member 24 as a rotation axis.
Therefore, not only the seat 10 moves in the front-rear direction along the slide rails 40 and 40 as described above, but also the entire seat 10 can rotate in the substantially horizontal direction around the connecting member 24.

On the other hand, as shown in FIG. 2, in the seat slide mechanism 1 according to the present embodiment, the connecting member 24 passes through the vehicle body carpet 30 and extends toward the upper seat cushion frame 16.
Hereinafter, the configuration of this portion in the seat slide mechanism 1 according to the present embodiment will be described.

As shown in FIG. 4, the vehicle body carpet 30 is provided with slits S extending in the front-rear direction in parallel with the two slide rails 40, 40 on the lower side thereof. In this configuration example, one slit S is arranged between the two slide rails 40, 40 in a plan view with respect to one sheet 10.
Since the connecting member 24 moves along the slide rails 40 and 40 as described above, it moves in the slit S along the slit S.

As shown in FIGS. 5 and 6, the vehicle body carpet 30 is arranged so as to be attached to the upper surface of the floor F, and the connecting member 24 is inserted through the floor F so that the connecting member 24 can move in the front-rear direction. An opening f extending in the front-rear direction is formed for the purpose.
The slit S of the vehicle body carpet 30 is formed above the opening f of the floor F, and is provided so as to be continuous with the opening f of the floor F.

A head-to-head fastener 31 that closes the slit S is attached to the upper side of the slit S of the vehicle body carpet 30 along the slit S, and the upper side of the head-to-head fastener 31 is covered with a cover 32.
The connecting member 24 extends from the lower side toward the upper seat cushion frame 16 (see FIGS. 2 and 3) through the slit S, and at that time, between the two sliders 31A of the head-to-head fastener 31. It is inserted into the gap formed between the left and right elements 31B of the head-to-head fastener 31.

As described above, according to the seat slide mechanism 1 according to the present embodiment, since the upper side of the head-to-head fastener 31 that closes the slit S of the vehicle body carpet 30 is covered with the cover 32, at least the connecting member 24 is inserted. The head-to-head fastener 31 is hidden by the cover 32 except for the portion other than the portion where the seat 10 is formed, that is, the portion below the seat 10.
Therefore, since the head-to-head fastener 31 provided on the vehicle body carpet 30 cannot be seen by the occupants and the like, it is possible to prevent the head-to-head fastener 31 from biting foreign matter such as dust. Further, since the head-to-head fastener 31 is covered with the cover 32, the appearance of the vehicle body carpet 30 and the like is improved.

Further, since the head-to-head fastener 31 and the cover 32 are in a state of being turned upward as shown in FIG. 5 at the portion where the connecting member 24 is inserted into the head-to-head fastener 31, the connecting member 24 is along the head-to-head fastener 31. The head-to-head fastener 31 and the cover 32 do not interfere with the movement.
Therefore, since the connecting member 24 is reliably moved along the head-to-head fastener 31, the seat 10 can be reliably moved along the slit S of the vehicle body carpet 30.

Then, as shown in FIG. 4, when the connecting member 24 is provided below the central portion of the seat cushion frame 16 of the seat 10 in a plan view, the connecting member 24 is upward through the slit S as described above. A gap G (see FIG. 5) is formed only below the sheet 10 between the left and right elements 31B of the head-to-head fastener 31 formed by extending to, and the gap G is covered with the sheet 10 from above. ..
Therefore, it is possible to prevent foreign matter from entering the gap G and being bitten by the fastener, or from the foreign matter falling from the gap G to the lower side of the vehicle body carpet 30.

Hereinafter, how to arrange the head-to-head fastener 31 and the cover 32 on the vehicle body carpet 30 will be described in more detail.
As shown in FIG. 6, a recess 30A extending in the front-rear direction in the thickness direction thereof is formed on the upper surface of the vehicle body carpet 30, and the slit S is provided in the recess 30A.
The head-to-head fastener 31 is arranged in the recess 30A, and the cover 32 is arranged on the upper side of the head-to-head fastener 31.

Specifically, for example, tapes 31C on both sides of the head-to-head fastener 31 are sewn to the left and right sides of the slit S of the recess 30A provided in the vehicle body carpet 30.
By arranging the head-to-head fastener 31 in the recess 30A formed on the upper surface of the vehicle body carpet 30 and arranging the cover 32 on the upper side of the head-to-head fastener 31 in this way, the head-to-head fastener 31 projects upward from the vehicle body carpet 30. This is suppressed, and the cover 32 is suppressed from protruding above the vehicle body carpet 30 more than necessary.

At that time, as shown in FIG. 6, if the lower end of the cover 32 in the thickness direction is arranged so as to be lower than the upper surface of the vehicle body carpet 30, the cover 32 protrudes above the vehicle body carpet 30 more than necessary. Is suppressed.
Therefore, the cover 32 provided on the vehicle body carpet 30 becomes inconspicuous, and the appearance of the vehicle body carpet 30 and the like is improved.

Further, one end side of the cover 32 in the width direction (left-right direction) is attached to the tape 31Ca of one of the tapes 31C on both sides of the head-to-head fastener 31 by sewing. It is also possible to form the cover 32 integrally with the vehicle body carpet 30 (that is, the cover 32 can also be formed of the vehicle body carpet 30).
Then, in the present embodiment, as shown in FIG. 6, the other end side of the cover 32 in the width direction is arranged so as to extend beyond the element 31B of the head-to-head fastener 31 to the other tape 31Cb side of the head-to-head fastener 31. ing. With this configuration, the cover 32 can cover the entire head-to-head fastener 31.

On the other hand, as shown in FIG. 5, the cover 32 is turned upward at the portion where the connecting member 24 is inserted into the head-to-head fastener 31. Therefore, if the cover 32 is made of an elastic member, the cover 32 deforms following the movement of the connecting member 24, which is desirable.
That is, if the cover 32 is made of an elastic member, the cover 32 can be easily turned up when the connecting member 24 moves, and the cover 32 can be easily moved to the original position, that is, the head-to-head fastener 31 when the connecting member 24 disappears. It will return to the position that covers the upper side of.

Further, when the connecting member 24 moves and the cover 32 is turned up, the back surface of the cover 32 (the lower surface of the cover 32 in the state shown in FIG. 6) comes into contact with the outer peripheral surface of the connecting member 24 (see FIG. 5). ).
At that time, the frictional resistance of the back surface of the cover 32 that comes into contact with the connecting member 24 is reduced by applying (or coating) a substance for reducing the frictional resistance on the back surface of the cover 32 or attaching such a substance. If this is done, the frictional resistance when the connecting member 24 slides against the back surface of the cover 32 is reduced, and the slidability is improved.

Further, if the cover 32 covering the upper side of the head-to-head fastener 31 is pressed against the element 31B of the head-to-head fastener 31 by being stepped on by an occupant, the durability of the cover 32 may deteriorate.
Therefore, for example, as shown in FIGS. 7A and 7B, it is possible to form, for example, a ridge-shaped protruding portion 32A on the back surface of the cover 32, that is, the portion of the head-to-head fastener 31 that abuts on the element 31B. is there. Although FIGS. 7A and 7B show a case where the protruding portion 32A is integrally formed with the cover 32, for example, the protruding portion 32A can be configured to be attached to the cover 32.
If the cover 32 is configured to have the protruding portion 32A in this way, the protruding portion 32A abuts on the element 31B of the head-to-head fastener 31, and the main body (plate-shaped portion) of the cover 32 becomes the head-to-head fastener 31. Since it does not come into contact with each other, it is possible to improve the durability of the cover 32.

By the way, when the seat 10 moves in the front-rear direction and the connecting member 24 moves in the front-rear direction accordingly, the state shown in FIG. 5, that is, one slider 31A on the side where the connecting member 24 moves is head-to-head fastener. In order to form a state in which the element 31B of 31 is opened to the left and right and the other slider 31A closes the element 31B, the two sliders 31A of the head-to-head fastener 31 are along the head-to-head fastener 31 in accordance with the movement of the connecting member 24. It is preferable to move.

Therefore, for example, a case is attached to the connecting member 24 for engaging with the two sliders 31A of the head-aligning fastener 31 and moving the two sliders 31A along the head-aligning fastener 31 in accordance with the movement of the connecting member 24. It can be configured as follows.
Specifically, as shown in FIG. 8A, for example, the case 25 has a cylindrical portion 25A serving as an attachment portion to the connecting member 24 and a flange portion 25B provided at the lower end of the cylindrical portion 25A. It is configured as follows. The cylindrical portion 25A is configured so that it can be attached to the connecting member 24 by screwing or the like. Further, for example, if the cylindrical portion 25A and the flange portion 25B of the case 25 are configured to be split back and forth, the case 25 can be easily attached to the connecting member 24.

Then, the case 25 and the two sliders 31A can be configured to be engaged with each other by directly attaching the two sliders 31A of the head-to-head fastener 31 to the flange portion 25B.
Further, as shown in FIG. 5, considering that the head-to-head fastener 31 and the cover 32 are turned up at the portion where the connecting member 24 is inserted, the flange of the case 25 is as shown in FIG. 8 (A). It is also possible to form the engaging portion 25C by bending both the front and rear ends of the portion 25B downward and bending the lower end portions substantially horizontally.

Then, as shown in FIG. 8B, the pillar 31Aa of the slider 31A is inserted into the hole 25D provided in the engaging portion 25C of the case 25, and the pin P is inserted into the pillar 31Aa protruding above the hole 25D. Then, the two sliders 31A of the head-to-head fastener 31 are fixed to the engaging portion 25C of the case 25 by attaching them with fasteners or the like.
In this way, the case 25 and the two sliders 31A of the head-to-head fastener 31 can be engaged with each other.

Therefore, the case 25 makes it possible to move the two sliders 31A of the head-to-head fastener 31 along the head-to-head fastener 31 in accordance with the movement of the connecting member 24, and the connecting member 24 (seat 10) moves in the front-rear direction. Even so, as shown in FIG. 5, it is possible to maintain a state in which only the portion of the head-to-head fastener 31 through which the connecting member 24 is inserted is open.
Therefore, in the portion of the head-to-head fastener 31 where the connecting member 24 is not inserted, the head-to-head fastener 31 is closed and the head-to-head fastener 31 is maintained in a state of being covered with the cover 32, so that the vehicle body carpet 30 looks good. At the same time, it is possible to accurately prevent foreign matter from falling from the head-to-head fastener 31 to the lower side of the vehicle body carpet 30.

The case 25 may be any as long as it can engage with the two sliders 31A of the head-to-head fastener 31 and move the two sliders 31A along the head-to-head fastener 31 in accordance with the movement of the connecting member 24. , The configuration example is not limited to that shown in FIG.
Further, it goes without saying that the present invention is not limited to the above-described embodiments and the like, and can be appropriately modified as long as the gist of the present invention is not deviated.

Further, in the above, the case where one slit S (also one connecting member 24) is arranged on the vehicle body carpet 30 for one seat 10 has been described, but there are a plurality of slits S for one seat 10. The present invention can also be applied to the case where the present arrangement is made.
That is, for example, as shown in FIG. 9, the seat cushion frame 16 of the seat 10 and the two slide rails 40 and 40 arranged under the vehicle body carpet 30 and the floor F are two (or four, etc.). ) Is connected by the connecting member 24, the vehicle body carpet 30 is provided with two slits S. Even in such a case, as shown in FIGS. 5 and 6, the slit S of the vehicle body carpet 30 is provided with two slits S. It is possible to attach a head-to-head fastener 31 that closes the slit S and to cover the upper side of the head-to-head fastener 31 with a cover 32.

1 Seat slide mechanism 10 Seat 16 Seat cushion frame 24 Connecting member 25 Case 30 Body carpet 30A Recess 31 Head-to-head fastener 31A Slider 31B Element 31C Tape 31Ca One tape 31Cb The other tape 32 Cover 32A Protruding part 40 Slide rail G Gap S slit

Claims (10)

A seat cushion frame that supports the seating surface of the seat and
The slide rails placed under the body carpet and
A connecting member that connects the seat cushion frame and the slide rail,
With
The connecting member is movable along the slide rail, and extends toward the upper seat cushion frame through a slit provided in the vehicle body carpet.
A head-to-head fastener that closes the slit is attached to the slit along the slit.
A seat sliding mechanism characterized in that the upper side of the head-to-head fastener is covered with a cover. The sheet sliding mechanism according to claim 1, wherein the connecting member is inserted into a gap formed between the elements of the head-to-head fastener between the two sliders of the head-to-head fastener. A recess is formed on the upper surface of the vehicle body carpet in the thickness direction thereof.
The slit is provided in the recess and is provided.
The head-to-head fastener is arranged in the recess.
The sheet sliding mechanism according to claim 1 or 2, wherein the cover is arranged above the head-to-head fastener. The seat slide mechanism according to claim 3, wherein the cover is arranged so that the lower end in the thickness direction is below the upper surface of the vehicle body carpet. The sheet sliding mechanism according to any one of claims 1 to 4, wherein the cover is made of an elastic member. One end of the cover in the width direction is attached to one of the tapes on both sides of the head-to-head fastener, and the other end in the width direction extends beyond the element of the head-to-head fastener to the head-to-head fastener. The sheet slide mechanism according to any one of claims 1 to 5, wherein the sheet slide mechanism is arranged so as to extend to the other tape side. The sheet sliding mechanism according to any one of claims 1 to 6, wherein the back surface of the cover that comes into contact with the connecting member has a reduced frictional resistance. The sheet sliding mechanism according to claim 7, wherein a protruding portion that comes into contact with the head-to-head fastener is formed on the back surface of the cover. A case is attached to the connecting member for engaging with two sliders of the head-to-head fastener and moving the two sliders along the head-to-head fastener in accordance with the movement of the connecting member. The sheet slide mechanism according to any one of claims 1 to 8, which is characterized. For one sheet
Two slide rails are arranged,
One slit is arranged between the two slide rails in a plan view.
The seat sliding mechanism according to any one of claims 1 to 9, wherein the connecting member is provided below the central portion of the seat cushion frame in a plan view.

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