JP5130525B2 - Sheet - Google Patents

Description

  The present invention provides a seat slide mechanism comprising a lower rail provided on the floor side, an upper rail provided on the seat side and movably provided on the lower rail, and a front portion of the lower rail of the seat slide mechanism with respect to the floor The support means for rotatably supporting, the lock mechanism for locking the rear portion of the lower rail of the seat slide mechanism to the floor, the operation means for performing the unlocking operation of the lock mechanism, and the upper rail of the seat slide mechanism are the last The present invention relates to a seat provided with a cancel mechanism that cancels transmission of an operation force from the operation means to the lock mechanism as long as it is not positioned.

  As shown in FIG. 32, a seat 5 is provided on a stepped floor having a lower floor 1 and a higher floor 3. A seat slide mechanism 7 including a lower rail provided on the floor side and an upper rail provided on the seat cushion 6 side of the seat 5 and movably provided on the lower rail is provided below the seat 5.

  The front end of the seat slide mechanism 7 is rotatably attached to the other end of a link (support means) 9 whose one end is rotatably attached to the lower floor 1. On the other hand, the rear portion of the seat slide mechanism 7 is locked to the higher floor 3 by the lock mechanism 11.

  Then, as shown by a two-dot chain line, the lock mechanism 11 is unlocked, and the seat 5 is stored in the lower floor 1 with the seat back 8 of the seat 5 tilted forward (for example, Patent Document 1).

In such a seat 5, when the seat 5 is in a front most state (a state where the seat 5 is in the foremost position), the seat 5 may interfere with the front seat 5 ′ and cannot be stored.
In order to avoid such a situation, there has been proposed a seat provided with a cancel mechanism that prevents the lock mechanism 11 from being unlocked unless the seat is in a rearmost state (a state in which the seat 5 is in the last position). .

  As an example of the cancel mechanism, there is a mechanism in which a lever that can be engaged with and disengaged from a lock release member of a lock mechanism provided on the lower rail side is provided on the upper rail side of the seat slide mechanism.

The lever cannot be engaged with the unlocking member of the lock mechanism when the upper rail is in a state other than the rear most, and is provided so that the lock mechanism can be unlocked by the lever when the upper rail becomes the rear most (see Patent Document 2).
Japanese Patent Laying-Open No. 2005-239050 (see FIG. 2) JP 2002-067748 A (see FIG. 3)

  However, in the cancel mechanism described in Patent Document 2, the accuracy with which the upper rail is stopped at the rear most and the accuracy with which the lever is engaged with the unlocking member are required. That is, in the seat slide mechanism, there is a problem that the parts accuracy and attachment accuracy of the stopper that holds the upper rail to the rear most are required, and the component accuracy and attachment accuracy of the lever and the lock mechanism are necessary.

  Furthermore, in order to absorb these errors in component accuracy and mounting accuracy, it is necessary to increase the size of the lever and the unlocking member of the lock mechanism, which increases the size of the cancel mechanism.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a seat that does not require high component accuracy and mounting accuracy and can be made compact in the cancel mechanism.

According to a first aspect of the present invention, there is provided a seat slide mechanism including a lower rail provided on the floor side, an upper rail provided on the seat side and movably provided on the lower rail, and a front portion of the lower rail of the seat slide mechanism. Support means for rotatably supporting the floor, a lock mechanism for locking a rear portion of the lower rail of the seat slide mechanism to the floor, an operation means for performing an unlocking operation of the lock mechanism, and the seat slide mechanism And a cancel mechanism that cancels transmission of the operation force from the operation means to the lock mechanism unless the upper rail is positioned at the last position, wherein the lock mechanism includes the floor side, the seat slide mechanism A striker provided on one side of the lower rail side, the floor side, The seat slide mechanism is rotatably provided on the other side of the lower rail side and is provided with a lock groove that can be engaged with the striker. The striker is urged toward a position where the striker can be engaged and disengaged. The hook is rotatably provided on the other side of the floor side and the lower rail side of the seat slide mechanism, and can be engaged with and disengaged from the hook. Then, the lock mechanism body comprising a pole means having a pole for prohibiting the rotation of the hook, the cancel mechanism is provided with the lock mechanism body on the floor side and the lower rail side of the seat slide mechanism. A movable body provided rotatably on the side, and rotatably provided on the movable body. The movable body can be engaged with and disengaged from the pole means. A rotating cancel hook, a first biasing means for biasing the cancel hook in a direction to engage with the pole means, and a position where the cancel hook can be engaged with the pole means. A second urging means for urging the movable body, a contact portion provided on the upper rail side of the seat slide mechanism, a lower rail side of the seat slide mechanism, and pressed by the contact portion, When the canceling hook is driven, and the upper rail of the seat slide mechanism is located at the last position, the abutting portion pushes the contacted means so that the cancel hook is moved to the pole. When the upper rail of the seat slide mechanism is located at a position other than the last position, the cancel hook is detached from the pole means. And a cancel hook driving means.

  In the lock mechanism, a state in which the striker engages with the lock groove of the hook of the lock mechanism body and the pole of the pole means engages with the hook at a position where the striker cannot be detached from the lock groove of the hook is a locked state. Here, when the pole is rotated against the urging force and the engagement between the pole of the pole means and the hook is released, the hook is rotated by the urging force, and the striker can be engaged and disengaged from the lock groove of the hook. It becomes a state.

  When the upper rail of the seat slide mechanism is located at a position other than the last position, the lock mechanism is in a locked state. At this time, the cancel hook is separated from the pole of the pole means by the cancel hook driving means. Therefore, even if the cancel hook is rotated, the pole does not rotate, and the lock mechanism cannot be unlocked and unlocked.

  Here, when the upper rail of the seat slide mechanism is located at the last position, the contact portion of the cancel hook driving means pushes the contacted means, and the cancel hook is engaged with the pole by the biasing force of the second biasing means. Then, when the cancel hook is rotated, the pole of the pole means is rotated, the lock mechanism is unlocked, and the unlock state is established.

  In the invention according to claim 2, the striker of the lock mechanism is provided on the floor side, the lock mechanism main body of the lock mechanism is provided on the lower rail side of the seat slide mechanism, and the pole means includes a pole, 2. The seat according to claim 1, wherein the movable body is provided so as to be movable on a circumference around a rotation center axis of the pole, and an operation force of the operation means acts on the movable body. It is.

  When the upper rail of the seat slide mechanism is located at a position other than the last position, the lock mechanism is in a locked state. At this time, the cancel hook is separated from the pole of the pole means by the cancel hook driving means. Therefore, even if the cancel hook is rotated, the pole does not rotate, and the lock mechanism cannot be unlocked and unlocked.

  Here, when the upper rail of the seat slide mechanism is located at the last position, the contact portion of the cancel hook driving means pushes the contacted means, and the cancel hook is engaged with the pole of the pole means by the urging force of the second urging means. Match. When the operating means is operated, the moving body rotates around the rotation center axis of the pole. Then, the cancel hook on the moving body also rotates, the pole of the pole means engaged with the cancel hook rotates, and the lock mechanism is unlocked to enter the unlocked state.

  In the invention according to claim 3, the striker of the lock mechanism is provided on the lower rail side of the seat slide mechanism, the lock mechanism main body of the lock mechanism is provided on the floor side, and the pole means includes the pole main body and The cancel hook is engageable, and has a pole drive lever that drives the pole body via a transmission means, and the movable body is on a circumference around the rotation center axis of the pole drive lever. The seat according to claim 1, wherein the seat is movably provided, and an operating force of the operating means acts on the moving body.

  When the upper rail of the seat slide mechanism is located at a position other than the last position, the lock mechanism is in a locked state. At this time, the cancel hook is separated from the pole of the pole means by the cancel hook driving means. Therefore, even if the cancel hook is rotated, the pole does not rotate, and the lock mechanism cannot be unlocked and unlocked.

  Here, when the upper rail of the seat slide mechanism is located at the last position, the abutting portion of the cancel hook driving means pushes the abutted means, and the cancel hook is a pole driving lever of the pole means by the urging force of the second urging means. Engage with.

  When the operating means is operated, the moving body rotates around the rotation center axis of the pole drive lever. Then, the cancel hook on the moving body also rotates, and the pole drive lever of the pole means engaged with the cancel hook rotates. The rotation of the pole drive lever is transmitted to the lock mechanism pole via the transmission mechanism, the pole in the lock mechanism rotates, and the lock mechanism is unlocked.

According to a fourth aspect of the present invention, the abutting means of the cancel hook driving means is rotatably provided on the lower rail side of the seat slide mechanism, and is pushed by the abutting portion and rotates to thereby cancel the cancel hook. A cancel link that engages the cancel hook and the pawl, and further includes a third biasing unit that biases the cancel link in a direction of pushing the cancel hook. It is a sheet | seat of Claim 2 or 3.

When the cancel link of the cancel hook driving means is pushed by the contact portion , it rotates against the biasing force of the third biasing means and leaves the cancel hook. Then, the cancel hook is engaged with the pole means by the urging force of the first urging means.

  When the operating means is operated, the moving body rotates around the rotation center axis of the pole drive lever. Then, the cancel hook on the moving body also rotates, the pole of the pole means engaged with the cancel hook rotates, and the lock mechanism becomes unlocked.

The invention according to claim 5 is a first cancel link in which the contacted means of the cancel hook driving means is rotatably provided on the lower rail side of the seat slide mechanism and is rotated by being pushed by the contact portion . The cancel hook driving means is provided on the floor side and can press the cancel hook in a direction away from the pole. When the cancel hook drive means is pressed by the first cancel link, the cancel hook drive means rotates in a direction away from the cancel hook. A second urging means for urging the first cancel link in a direction contacting the second cancel link and a second urging member for urging the second cancel link in a direction away from the cancel hook; 5, and the second cancel link is disposed behind the cancel hook from the cancel hook. A sheet according to claim 3, characterized in that pressed against the.

  When the upper rail of the seat slide mechanism is located at a position other than the last position, the lock mechanism is in a locked state. At this time, the cancel hook is separated from the pole of the pole means by the cancel hook driving means. Therefore, even if the cancel hook is rotated, the pole does not rotate, and the lock mechanism cannot be unlocked and unlocked.

  Here, when the upper rail of the seat slide mechanism is located at the last position, the contact portion of the cancel hook driving means pushes the first cancel link of the contacted means, and the first cancel link is the biasing force of the fourth biasing means. Rotate against When the first cancel link is rotated, the second cancel link is rotated by the biasing force of the fifth biasing means, is separated from the cancel hook, and the cancel hook and the pole driving means of the pole means are engaged.

  According to a sixth aspect of the present invention, a through hole is formed in a lower portion of the lower rail of the seat slide mechanism, and the hook and pole of the lock mechanism, the movable body of the cancel mechanism, and the cancel hook are the seat slide mechanism. The cancel link of the cancel mechanism is provided inside the lower rail of the seat slide mechanism, and is disposed between the cancel link and the cancel hook via the through hole. The sheet according to claim 4, wherein the abutment is performed.

  In the invention according to claim 7, the hook and pole of the lock mechanism, the movable body of the cancel mechanism, and the cancel hook are provided outside the lower rail of the seat slide mechanism and below the lower rail, The cancel link of the cancel mechanism is provided outside the lower rail of the seat slide mechanism, and the sub cancel hook that rotates integrally with the cancel hook of the cancel mechanism is provided outside the lower rail of the seat slide mechanism, and the seat slide mechanism The seat according to claim 4, wherein the cancel link and the sub-cancel hook are brought into contact with each other outside the lower rail.

  According to an eighth aspect of the present invention, the cancel hook driving means is rotatably provided on the lower rail side of the seat slide mechanism, and pushes the cancel hook by rotating to engage the cancel hook with the pawl. A cancel link to be released, a slide plate provided on the lower rail side of the seat slide mechanism so as to be movable along the movement direction of the upper rail, and provided on one member of the cancel link and the slide plate Provided on the other member of the slider portion, the cancel link, and the slide plate, the slider portion is movably engaged, and when the slide plate moves rearward, the cancel link is moved to the cancel hook. The guide to rotate away from the front and the front A sixth urging means for urging the slide plate in a direction in which the cancel link pushes the cancel hook, and an upper rail of the seat slide device, and when the upper rail of the seat slide mechanism is located at the last position, the slide The sheet according to claim 2, further comprising: a contact portion that pushes a plate to separate the cancel link from the cancel hook and prohibits the cancel link from rotating in the cancel hook direction.

  The invention according to claim 9 is characterized in that the seat slide mechanism is provided on one rail side of the upper rail and the lower rail, and has a lock member that can be engaged and disengaged on the other rail side, The seat according to any one of claims 1 to 8, further comprising: an operation lever provided at a location apart from the seat slide lock mechanism; and a cable for transmitting movement of the operation lever to the lock mechanism. It is.

According to the first to ninth aspects of the present invention, the cancel mechanism is provided on the contact rail provided on the upper rail side of the seat slide mechanism and on the lower rail side of the seat slide mechanism. is, material having an abutment means allowing driving said cancellation hook, when the upper rail of the seat slide mechanism is located at the end position, by the contact portion pushes the contacted device, the cancellation hook When the upper rail of the seat slide mechanism is engaged with the pawl means and the upper rail of the seat slide mechanism is located at a position other than the last position, the upper hook of the seat slide mechanism is moved in the rearmost direction by having a cancel hook driving means for detaching the cancel hook from the pawl. Just by moving in the direction of the last position, the contact portion and the contacted means are contacted. Since canceling mechanism operates, high component accuracy, the mounting accuracy is not required, it is possible to downsize the canceling mechanism.

  According to the second aspect of the present invention, the striker of the lock mechanism is provided on the floor side, and the lock mechanism main body of the lock mechanism is provided on the lower rail side of the seat slide mechanism. That is, only the striker having a simple structure is provided on the floor side, thereby facilitating the assembly on the floor side.

  According to the invention of claim 3, the striker of the lock mechanism is provided on the lower rail side of the seat slide mechanism, and the lock mechanism main body of the lock mechanism is provided on the floor side. That is, by providing a light weight striker on the rotating seat slide mechanism side, the rotational operation force on the seat slide mechanism side can be reduced.

According to the fourth aspect of the present invention, the cancel hook driving means is simple in structure because it comprises the cancel link and the third urging means.
According to the fifth aspect of the present invention, the contacted means of the cancel hook driving means is a first cancel link that is rotatably provided on the lower rail side of the seat slide mechanism and is rotated by being pushed by the contact portion. And the cancel hook driving means is provided on the floor side and can press the cancel hook in a direction away from the pawl, and rotates in a direction away from the cancel hook when pressed by the first cancel link. A second urging means for urging the first cancel link in a direction in contact with the second cancel link, and urging the second cancel link in a direction away from the cancel hook. And a second urging means, wherein the second cancel link is connected to the cancel hook from behind the cancel hook. By pressing the hook, the upper rail is positioned at the rear most (the last position), the lock mechanism is unlocked, the upper rail is moved forward, and the upper rail is moved back to the rear most. There is no cancel hook on the link.

  According to the invention of claim 6, a through hole is formed in the lower part of the lower rail of the seat slide mechanism, and the hook and pole of the lock mechanism, the movable body of the cancel mechanism, and the cancel hook are the seat. Provided outside the lower rail of the slide mechanism and below the lower rail, and the cancel link of the cancel mechanism is provided inside the lower rail of the seat slide mechanism, and the cancel link and the cancel via the through hole By making contact with the hook, the lock mechanism excluding the striker and the cancel mechanism excluding the contact portion can be made into one unit, so that assembly is facilitated.

  According to the invention of claim 7, the hook and pole of the lock mechanism, the movable body of the cancel mechanism, and the cancel hook are provided outside the lower rail of the seat slide mechanism and below the lower rail. The cancel link of the cancel mechanism is provided outside the lower rail of the seat slide mechanism, and the sub cancel hook that rotates integrally with the cancel hook of the cancel mechanism is provided outside the lower rail of the seat slide mechanism, Since the cancel link and the sub-cancel hook are brought into contact with each other outside the lower rail of the slide mechanism, it is not necessary to provide a through hole in the lower rail for the contact between the cancel link and the cancel hook. Lower rail strength by providing It can be prevented.

  According to an eighth aspect of the present invention, the cancel hook driving means is rotatably provided on the lower rail side of the seat slide mechanism and pushes the cancel hook by rotating to engage the cancel hook with the pole. A cancel link for releasing the connection, a slide plate provided on the lower rail side of the seat slide mechanism so as to be movable along the movement direction of the upper rail, and provided on one member of the cancel link and the slide plate Provided on the other member of the slider portion, the cancel link, and the slide plate. When the slider portion is movably engaged and the slide plate moves rearward, the cancel link is Guide that rotates away from the cancel hook A sixth urging means for urging the slide plate in a direction in which the cancel link pushes the cancel hook, and an upper rail of the seat slide device, and the upper rail of the seat slide mechanism is located at the last position, By pressing the slide plate, separating the cancel link from the cancel hook, and comprising a contact portion that prohibits rotation of the cancel link in the cancel hook direction, by appropriately setting the shape of the guide, The urging force of the fifth urging means for urging the slide plate can be reduced, and the slide resistance of the seat slide mechanism can be reduced.

[First Embodiment]
Initially, the whole structure of the sheet | seat of this example is demonstrated using FIG.
A seat 25 is provided on the stepped floor having the lower floor 21 and the higher floor 22. Below the seat 25, there is provided a seat slide mechanism 27 including a lower rail 31 provided on the floor side and an upper rail 33 provided on the seat cushion 26 side of the seat 25 and provided movably on the lower rail 31.

The seat slide mechanism 27 is provided with a seat slide lock mechanism 37 that prohibits the movement of the upper rail 33.
The front portion of the lower rail 31 of the seat slide mechanism 27 is rotatably attached to the other end portion of a link (support means) 29 whose one end portion is rotatably attached to the lower floor 21. On the other hand, the rear portion of the lower rail 31 of the seat slide mechanism 27 is locked to the high floor 22 by a lock mechanism 35 that engages with a striker 24 provided on the high floor 22. In this embodiment, a cancel mechanism 38 is provided in the vicinity of the lock mechanism 35 so that the lock mechanism 35 cannot be unlocked unless the upper rail 33 of the seat slide mechanism 27 is positioned at the rear most (last position). ing.

  As indicated by a two-dot chain line, the seat 25 is stored on the lower floor 21 in a state where the lock mechanism 35 is unlocked and the seat back 28 of the seat 25 is tilted forward.

<Seat slide lock mechanism 37>
Here, the seat slide lock mechanism 37 will be described with reference to FIGS. As shown in FIG. 7, an operation lever 41 is provided at a location apart from the seat slide lock mechanism 37, in the present embodiment, at the front portion of the seat cushion 26.

  As shown in FIGS. 9 and 10, the lower rail 31 has a cross section including a bottom 31 a, side portions 31 b and 31 c that are bent from both sides of the bottom portion 31 a and extend away from the floor, and upper ends of the side portions 31 b and 31 c. Folding portions 31d and 31e that are bent from the front and go to the floor side.

  The cross section of the upper rail 33 is bent from the top portion 33a, the side portions 33b and 33c extending from both sides of the top portion 33a and extending in the floor direction, and the side portions 31b of the lower rail 31. The folded portion 33d extends toward the space formed by the folded portion 31d, the side portion 31c of the lower rail 31, and the folded portion 33e that extends toward the space formed by the folded portion 31e.

  A bracket 43 is provided on the top portion 33a and the side portion 33e of the upper rail 33 along the longitudinal direction of the upper rail 33b. Standing walls 43a are formed at both ends of the bracket 43, and a shaft 45 is rotatably provided between the standing wall parts 43a.

  The lower rail 31 is provided with a plurality of lock holes 31f along the longitudinal direction. In the upper rail 33, three lock holes 33f facing the lock holes 31f of the lower rail 31 are formed. The bracket 43 is formed with three holes (not shown) facing the lock holes 33f of the upper rail 33.

  A lock lever 47 as a lock member is attached to the shaft 45. The lock lever 47 is formed with a lock claw portion 47 a that can be engaged with and disengaged from the lock hole 31 f of the lower rail 31 through a hole (not shown) of the bracket 43 and a lock hole 33 f of the upper rail 33. When the lock lever 47 rotates about the shaft 45 as a center axis, the lock claw portion 47a is engaged with and disengaged from the lock hole 31f of the lower rail 31, and movement of the upper rail 33 with respect to the lower rail 31 is prohibited when engaged. Further, the lock lever 47 is urged in a direction in which the lock claw portion 47 a is engaged with the lock hole 31 f of the lower rail 31 by urging means (not shown).

  Further, adjacent to the lock lever 47, a lock release lever 49 is rotatably provided using a pin 50. The rotation end of the lock release lever 49 can be pressed against a pressed contact portion 47 b formed on the lock lever 47, and the lock claw portion 47 a is separated from the lock hole 31 f of the lower rail 31 by pressing. A pin 51 for rotating the lock lever 47 is provided. Further, as shown in FIG. 10, the lock release lever 49 is lightly biased by the spring 53 in the direction in which the pin 51 is pressed against the pressed portion 47 b of the lock lever 47.

  The lock release lever 49 is connected to the other end of the cable 52 whose one end is connected to the operation lever 41 described above. The movement of the operation lever 41 is transmitted to the lock release lever 49 via the cable 52. It has become so.

Here, the operation of the seat slide lock mechanism 37 will be described. Normally, the lock claw portion 47a of the lock lever 47 is engaged with the lock hole 31f of the lower rail 31 by the urging force of the urging means (not shown), and the movement of the upper rail 33 is prohibited. Here, when the operation lever 41 is operated, the operation force of the operation lever 41 is transmitted to the lock release lever 49 via the cable 52, the lock release lever 49 rotates against the urging force of the spring 53, and the pin 51 is moved. The pressed portion 47b of the lock lever 47 is pressed and the lock lever 47 rotates against a biasing force of a biasing means (not shown), and the lock claw portion 47a of the lock lever 47 is detached from the lock hole 31f of the lower rail 31. The upper rail 33 can be moved. When the operation force of the operation lever 41 is released after the upper rail 33 is moved to a desired position, the lock claw portion 47a of the lock lever 47 is engaged with the lock hole 31f of the lower rail 31 by the urging force of the urging means (not shown). In this case, the movement of the upper rail 33 is prohibited again.
<Lock mechanism 35, cancel mechanism 38>
This will be described with reference to FIGS. First, the lock mechanism 35 will be described. The lock mechanism according to this embodiment includes a striker 24 provided on the floor and a lock mechanism main body 35a provided on the bottom 31a of the lower rail 31.

  First, the lock mechanism main body 35 a will be described. As shown in FIG. 3, two plates 61 and 63 are provided on the bottom 31 a of the lower rail 31. As shown in FIGS. 1 and 2, a hook 65 is rotatably provided using a pin 67 so as to be sandwiched between these plates 61 and 63. The hook 65 is formed with a lock groove 65a with which the striker 24 can be engaged.

  Further, a pole 69 of a pole means is rotatably provided using a pin 72 so as to be sandwiched between the plates 61 and 63. The striker 24 engages with the lock groove 65a of the hook 65 and engages with the engaging portion 65b of the hook 65 at a position where the striker 24 cannot be removed from the lock groove 65a of the hook 65 (position shown in FIG. 1). A mating engagement portion 69a is formed.

  As shown in FIG. 1, the hook 65 is attached toward the position where the striker 24 can be engaged with and disengaged from the lock groove 65a by the spring 71 with one end engaged with the hook 65 and the other end engaged with the pole 69. (In the direction of arrow D in FIG. 1). Further, the pole 69 is biased in the direction (the direction of arrow E in FIG. 1) in which the engaging portion 69a engages with the engaging portion 65b of the hook 65.

  Then, the striker 24 on the floor engages with the lock groove 65a of the hook 65, and the pole 69 is attached to the spring 71 in a state where the striker 24 cannot be removed from the lock groove 65a of the hook 65 (the state shown in FIG. When the engagement between the engaging portion 69a of the pole 69 and the engaging portion 65b of the hook 65 is released by rotating against the force, the hook 65 rotates approximately 90 ° by the urging force of the spring 71, and the striker 24 is hooked. It will be in the unlocked state which can be engaged / disengaged from the 65 lock grooves 65a.

  Next, the cancel mechanism 38 will be described. As shown in FIG. 2, the plate 63 is formed with an arc-shaped elongated hole 63 a centering on a pin 72 that is the center of rotation of the pole 69. 1 to 3, the pole 69 is provided with a pin 81 that passes through the long hole 63a of the plate 63 and projects to the outside.

On the other hand, as shown in FIGS. 1 and 3, a contact member (contact portion) 70 is provided in the upper rail 33, that is, on the inner surface of the top portion 33a.
As shown in FIG. 2, an operation plate 73 is rotatably provided around the pin 72 on the surface facing the outside of the plate 63. The other end of the spring 75 whose one end is locked to the plate 63 is locked to the rotating end of the operation plate 73, and the operation plate 73 is urged in the direction of arrow F in FIG.

  A cancel hook 79 is rotatably provided on the operation plate 73 using a pin 77. In other words, the operation plate 73 is provided on the lower rail 31 side of the seat slide mechanism 27 and functions as a movable body that can move on the circumference around the rotation center axis of the pole 69.

  A pin engaging portion 79 a that can engage with the pin 81 of the pole 69 is formed on one rotating end side of the cancel hook 79. When the pin engaging portion 79a of the cancel hook 79 is engaged with the pin 81 of the pole 69, the pole 69 and the cancel hook 79 rotate together. The cancel hook 79 is urged in a direction in which the pin engaging portion 79a engages with the pin 81 (in the direction of arrow G in FIG. 1) by a first urging means (not shown). Further, in the present embodiment, when the cable 111 is connected to the operation plate 73 and the seat back 28 tilts forward, the cable 111 is pulled, and the operation plate 73 and the cancel hook 79 are opposed to each other about the pin 72. It is designed to rotate clockwise.

The spring 75 functions as a second urging unit that urges the operation plate 73 so that the cancel hook 79 is directed to a position where the cancel hook 79 can engage with the pole 69.
A through hole 31g is formed in the bottom 31a of the lower rail 31 on which the two plates 61 and 63 are provided, and a cancel base 101 extending into the lower rail 31 through the through hole 31g is provided. A cancel link 105 is rotatably provided on the cancel base 101 using a pin 103. On one rotation end side of the cancel link 105, the pressing contact portion 79 b of the other rotation end portion of the cancel hook 79 is pushed in a direction to release the engagement between the cancel hook 79 and the pin 81 of the pole 69. A portion 105a is formed. The cancel link 105 is urged in the direction in which the pressing portion 105a pushes the pressed contact portion 79b of the cancel hook 79 (in the direction of arrow H in FIG. 1) by a spring 107 (see FIG. 3) as third urging means. Yes. A contacted portion 105 b with which the contact member 70 provided on the upper rail 33 can come into contact is formed at the other rotation end of the cancel link 105.

  Further, the cancel link 105 is formed with an arc-shaped long hole 105 c centered on the pin 103. On the other hand, the cancel base 101 is provided with a pin 106 that engages with the elongated hole 105 c, and the cancel link 105 is rotatable within a range in which the end of the elongated hole 105 c abuts on the pin 106.

The contact member 70 and the cancel link 105 constitute cancel hook driving means.
Next, the operation of the cancel mechanism 38 will be described with reference to FIGS.

  As shown in FIG. 4, when the upper rail 33 of the seat slide mechanism 27 is located at a position other than the rear most (last position), the lock mechanism 35 is in a locked state. At this time, the cancel link 105 is urged by the spring 107, and the pressing portion 105 a presses the pressed portion 79 b of the cancel hook 79. For this reason, the pin engaging portion 79a of the cancel hook 79 does not engage with the pin 81 of the pole 69, and the cancel hook 79 and the pole 69 do not rotate together. Accordingly, when the seat back 28 is tilted forward and the cable 111 is pulled, the cancel hook 79 rotates together with the operation plate 73, and the lock mechanism 35 is not unlocked.

  Next, when the upper rail 33 of the seat slide mechanism 27 is located at the rearmost (last position), as shown in FIG. 5, the contact member 119 pushes the contacted portion 105b of the cancel link 105 as the contacted means, The cancel link 105 rotates against the urging force of the third urging means, and the pressing portion 105 a is separated from the pressed portion 79 b of the cancel hook 79. The cancel hook 79 is rotated by the biasing force of the first biasing means in a direction in which the pin engaging portion 79 a engages with the pin 81 of the pole 69, and the pin engaging portion 79 a of the cancel hook 79 is rotated by the pin of the pole 69. 81 is engaged.

Accordingly, when the seat back 28 is tilted forward and the cable 111 is pulled, the cancel hook 79 rotates together with the pole 69, and the lock mechanism 35 is unlocked.
Even if the upper rail 33 moves backward more than the rear most, the cancel link 105 only rotates in the direction in which the pressing portion 105a is separated from the pressed portion 79b of the cancel hook 79, as shown in FIG. When the cable 111 is pulled forward and the cable 111 is pulled, the cancel hook 79 rotates together with the pole 69, and the lock mechanism 35 is unlocked.

According to such a configuration, the following effects can be obtained.
(1) When the upper rail 33 of the seat slide mechanism 27 is positioned at the rear most (the last position), the cancel mechanism 38 pushes the cancel link 105 as a contacted means so that the cancel hook 79 is moved to the pole 69. When the upper rail 33 of the seat slide mechanism 27 is located at a position other than the rearmost (last position), the upper rail 33 of the seat slide mechanism 27 is provided by having a cancel hook driving means for detaching the cancel hook 79 from the pole 69. Since the abutting member 70 and the cancel link 105 are brought into contact with each other only by moving the rearmost in the rearmost direction (the last position direction), the cancel mechanism 38 operates, so that high component accuracy and mounting accuracy are unnecessary, and the cancel mechanism 38 can be downsized.
(2) The contact means of the cancel hook driving means is rotatably provided on the lower rail 31 side of the seat slide mechanism 27, and pushes the cancel hook 79 by rotating to release the engagement between the cancel hook and the pole. By providing the third urging means for urging the cancel link 105 in the direction of pushing the cancel hook 79, the mechanism is simple.
(3) A through hole 31g is formed in the bottom 31a of the lower rail 31 of the seat slide mechanism 27. The hook 65 and the pole 69 of the lock mechanism 35, the pin 77 as the moving body of the cancel mechanism 38, and the cancel hook 79 The cancel link 105 of the cancel mechanism 38 is provided outside the lower rail 31 of the seat slide mechanism 27 and below the lower rail 31, and is provided inside the lower rail 31 of the seat slide mechanism 27 via the through hole 31g. Since the cancel link 105 and the cancel hook 79 are brought into contact with each other, the lock mechanism 35 excluding the striker 24 and the cancel mechanism 38 excluding the contact member 70 can be combined into one unit. Attaching is easy.
[Second Embodiment]
This will be described with reference to FIGS. The difference between this embodiment and the first embodiment is a cancel mechanism, and the other parts are the same as those of the first embodiment. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

As shown in FIGS. 11 and 12, the contact member 170 of the cancel mechanism of the present embodiment is attached to the outer surface side of the top portion 33 a of the upper rail 33 and projects to the side.
As shown in FIG. 12, a bracket 121 having an L-shaped cross section is provided at the bottom 31 a of the lower rail 31. A cancel link 125 is rotatably provided using a pin 123 at a portion of the bracket 121 that faces the side of the upper rail 33.

  As shown in FIG. 11, the operation plate 133 is rotatably provided on the surface facing the outside of the plate 63 around the pin 71. The other end of the spring 135 whose one end is locked to the plate 63 is locked to the rotating end of the operation plate 133, and the operation plate 133 is urged in the direction of arrow F in FIG.

  A pin 137 is rotatably provided on the operation plate 133. A cancel hook 139 and a sub-cancel hook 141 are attached to the pin 137 from the pole 69 side. The cancel hook 139 and the sub-cancel hook 141 rotate together. The pin 137 is provided on the lower rail 31 side of the seat slide mechanism 27 and functions as a movable body that can move on the circumference around the rotation center axis of the pole 69.

  A pin engaging portion 139 a that can engage with the pin 81 of the pole 69 is formed on one rotating end side of the cancel hook 139. When the pin engaging portion 139a of the cancel hook 139 is engaged with the pin 81 of the pole 69, the pole 69 and the cancel hook 139 rotate together. The cancel hook 139 is urged in the direction in which the pin engaging portion 139a engages with the pin 81 (in the direction of arrow G in FIG. 11) by a first urging means (not shown). Further, in this embodiment, the cable 111 is connected to the cancel hook 139, and when the seat back 28 tilts forward, the cable 111 is pulled, and the cancel hook 139 resists the first biasing means, It rotates in the direction opposite to the arrow G direction.

The spring 135 functions as second urging means for urging the pin 137 as a moving body toward a position where the cancel hook 139 can engage with the pole 69.
On one rotation end side of the cancel link 125, a pin that is a pressed contact portion provided at the rotation end of the sub-cancel hook 141 in a direction to release the engagement between the cancel hook 139 and the pin 81 of the pole 69 A pressing portion 125a for pressing 147 is formed. In the cancel link 125, the spring 143 (see FIG. 12) as the third urging means pushes the pin 147, which is the pressed portion provided in the sub-cancel hook 141, with the pressing portion 125a (see arrow H in FIG. 11). Direction). A contacted portion 125 b with which the contact member 170 provided on the upper rail 33 can contact is formed at the other rotation end of the cancel link 125.

Next, the operation of the cancel mechanism will be described with reference to FIGS.
As shown in FIG. 13, when the upper rail 33 of the seat slide mechanism 27 is located at a position other than the rear most (last position), the lock mechanism 35 is in a locked state. At this time, the cancel link 125 is urged by the spring 143, and the pressing portion 125 a presses the pin 147 that is the pressed portion of the sub-cancel hook 141. For this reason, the pin engaging portion 139a of the cancel hook 139 does not engage with the pin 81 of the pole 69, and the cancel hook 139 and the pole 69 do not rotate together. Accordingly, when the seat back 28 is tilted forward and the cable 111 is pulled, the cancel hook 79 rotates together with the operation plate 73, and the lock mechanism 35 is not unlocked.

  Next, when the upper rail 33 of the seat slide mechanism 27 is located at the rearmost (last position), as shown in FIG. 14, the contact member 170 pushes the contacted portion 125b of the cancel link 125 as the contacted means, The cancel link 125 rotates against the urging force of the third urging means, and the pressing portion 125 a is separated from the pin 147 that is the pressed portion of the sub-cancel hook 141. The sub-canceling hook 141 and the canceling hook 139 are rotated in a direction in which the pin engaging portion 139a is engaged with the pin 81 of the pole 69 by the urging force of the second urging means, and the pin engaging portion 139a of the canceling hook 139 is engaged. Engages with the pin 81 of the pole 69.

Accordingly, when the seat back 28 is tilted forward and the cable 111 is pulled, the cancel hook 139 rotates together with the pole 69, and the lock mechanism 35 is unlocked.
Even if the upper rail 33 moves backward beyond the rearmost, as shown in FIG. 15, the cancel link 125 only rotates in the direction away from the pin 147 that is the pressed portion of the sub-cancel hook 141 as shown in FIG. 15. When the seat back 28 tilts forward and the cable 111 is pulled, the cancel hook 139 rotates together with the pole 69, and the lock mechanism 35 is unlocked.

According to such a configuration, in addition to the effects (1) and (2) of the first embodiment, the following effects can be obtained.
A hook 65 and a pole 69 of the lock mechanism, a pin 137 as a moving body of the cancel mechanism, and a cancel hook 139 are provided outside the lower rail 31 of the seat slide mechanism 27 and below the lower rail 31. The cancel link 125 is provided outside the lower rail 31 of the seat slide mechanism 27, and the sub-cancel hook 141 that rotates integrally with the cancel hook 139 of the cancel mechanism is provided outside the lower rail 31 of the seat slide mechanism 27. Since the cancel link 125 and the sub-cancel hook 141 are brought into contact with each other outside the 27 lower rails 31, it is not necessary to provide a through hole in the lower rail 31 for contact between the cancel link 125 and the cancel hook 139. , Throughbore prevents strength reduction of the lower rail 31 by providing the.
[Third embodiment]
This will be described with reference to FIGS. The difference between the present embodiment and the first embodiment is the cancel link of the cancel mechanism, and the other parts are the same as those of the first embodiment. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The contact member of the first embodiment is a member that directly pushes the cancel link to rotate the cancel link. In this embodiment, the abutting member drives the positive cam and rotates the cancel link engaged with the positive cam.

  As shown in FIG. 16, a long hole 101 b is formed in the cancel base 101 along the moving direction of the upper rail 33. Two pins 201 provided on the slide plate 203 are movably engaged with the long hole 101b. Therefore, the slide plate 203 can move along the moving direction of the upper rail 33.

A contact member 199 is provided on the upper rail 33. The slide plate 203 is formed with a contacted portion 203b with which the contact member 199 can contact.
A cancel link 205 is rotatably attached to the cancel base 101 using pins 207. One rotation end side of the cancel link 205 pushes the pressed contact portion 79b of the cancel hook 79 when the cancel link 205 rotates, and the pin engaging portion 79a of the cancel hook 79 and the pin 81 of the pole 69 A pressing portion 205a for releasing the engagement is formed.

  The slide plate 203 is formed with a cam groove 203a as a guide. On the other hand, the cancel link 205 is provided with a pin 209 as a slider portion movably engaged with the cam groove 205a. The cam groove 203 a is set to a shape that rotates the cancel link 205 in a direction away from the cancel hook 79 when the slide plate 203 moves rearward. In contrast to this embodiment, the cam groove may be provided on the cancel link and the pin may be provided on the slide plate.

The slide plate 203 is biased in a direction in which the cancel link 205 pushes the cancel hook 79 by a fifth biasing means (not shown).
Next, the operation of the cancel mechanism 38 will be described with reference to FIGS.

  As shown in FIG. 17, when the upper rail 33 of the seat slide mechanism 27 is located at a position other than the rear most (last position), the lock mechanism 35 is in a locked state. At this time, the cancel link 205 is urged by a fifth urging means (not shown), and the pressing portion 205 a presses the pressed portion 79 b of the cancel hook 79. For this reason, the pin engaging portion 79a of the cancel hook 79 does not engage with the pin 81 of the pole 69, and the cancel hook 79 and the pole 69 do not rotate together. Accordingly, when the seat back 28 is tilted forward and the cable 111 is pulled, the cancel hook 79 rotates together with the operation plate 73, and the lock mechanism 35 is not unlocked.

  Next, when the upper rail 33 of the seat slide mechanism 27 is located at the rearmost (last position), as shown in FIG. 18, the contact member 119 pushes the contacted portion 203b of the slide plate 203 as the contacted means, The cancel link 205 rotates against the urging force of the fifth urging means, and the pressing portion 205 a is separated from the pressed portion 79 b of the cancel hook 79. The cancel hook 79 is rotated in the direction in which the pin engaging portion 79a is engaged with the pin 81 of the pole 69 by the urging force of the second urging means, and the pin engaging portion 79a of the cancel hook 79 is rotated in the pin of the pole 69. 81 is engaged.

Accordingly, when the seat back 28 is tilted forward and the cable 111 is pulled, the cancel hook 79 rotates together with the pole 69, and the lock mechanism 35 is unlocked.
Even if the upper rail 33 moves backward more than the rear most, as shown in FIG. 19, the cancel link 205 only rotates in the direction in which the pressing portion 205 a moves away from the pressed portion 79 b of the cancel hook 79. When the cable 111 is pulled forward and the cable 111 is pulled, the cancel hook 79 rotates together with the pole 69, and the lock mechanism 35 is unlocked.

According to such a configuration, in addition to the effect (1) of the first embodiment, the following effects can be obtained.
By appropriately setting the shape of the cam groove 203a of the slide plate 203 as a guide, the urging force of the fifth urging means for urging the slide plate 203 can be reduced, and the slide resistance of the seat slide mechanism can be reduced. Can be small.
[Fourth Embodiment]
This will be described with reference to FIGS. Since the seat slide mechanism of the present embodiment is the same as the seat slide mechanism 27 of the first to third embodiments, description of the seat slide mechanism of the present embodiment is omitted.
<Lock mechanism 300>
In the lock mechanism 300 of this embodiment, the striker 301 is provided on the lower rail 31 side of the seat slide mechanism, and the lock mechanism main body 303 is provided on the floor.

  The lock mechanism main body 303 will be described. As shown in FIGS. 20, 22, and 23, a base plate 305 is provided on the floor. The base plate 305 is provided with a plate 307 with a gap therebetween. As shown in FIGS. 22 and 23, a hook 309 is rotatably provided using a pin 311 so as to be sandwiched between these plates 305 and 307. The hook 309 is formed with a lock groove 309a with which the striker 301 can be engaged.

  Further, a pole 313 of a pole means is rotatably provided using a pin 315 so as to be sandwiched between the plates 305 and 307. The striker 301 engages with the lock groove 309a of the hook 309 and engages with the engaging portion 309b of the hook 309 at a position where the striker 301 cannot be detached from the lock groove 309a of the hook 309 (position shown in FIG. 1). A mating engagement portion 313a is formed.

  The hook 309 is biased toward a position where the striker 301 can be engaged with and disengaged from the lock groove 309a by a spring 316 having one end engaged with the hook 309 and the other end engaged with the pole 313 (FIG. 20). Arrow D direction). Further, the pole 313 is biased in the direction (the direction of arrow E in FIG. 20) in which the engaging portion 313a is engaged with the engaging portion 309b of the hook 309.

  On the plate 303, a pole interlocking lever 323 is rotatably attached using a pin 321. On one rotation end side of the pole lever 323, a pin 325 directed toward the pole 313 is provided. The plate 307 is formed with an elongated hole 307a through which the pin 325 is inserted in an arc shape centered on the pin 321. The pole 313 is formed with a long hole 313a that extends in the radial direction of rotation of the pole 313 and engages with the pin 325.

Therefore, when the pole interlocking lever 323 rotates, the pole 313 also rotates.
Furthermore, the pole interlocking lever 323 is connected to the pin 321 by a spring 327 whose one end is locked to the pole interlocking lever 323 and whose other end is locked to the plate 307. Thus, the engaging portion 313a of the pole 313 is urged in a direction (direction of arrow M in FIG. 20) to engage with the engaging portion 309b of the hook 309.

A cable 331 serving as a transmission means is connected to the other rotation end of the pole interlocking lever 323.
Then, the striker 301 of the lower rail 31 is engaged with the lock groove 309a of the hook 309, and the striker 301 cannot be detached from the lock groove 309a of the hook 309 (the state shown in FIG. 20: locked state). When the engagement between the engaging portion 313a of the pole 313 and the engaging portion 309b of the hook 309 is released by rotating against the force, the hook 309 rotates approximately 90 ° by the biasing force of the spring 315, and the striker 301 is hooked. The unlocked state becomes possible to be engaged and disengaged from the lock groove 309a of 309.
<Cancel mechanism 350>
As shown in FIGS. 20 and 21, the top portion 33 a of the upper rail 33 is provided with a contact member 353 projecting to the side of the upper rail 33.

  A bracket 352 is provided on the lower rail 31, and a cancel link 357 is rotatably attached to the bracket 352 using a pin 355. The cancel link 357 is rotated by being pushed by the contact member 353. The cancel link 357 is urged in the direction of arrow J by third urging means (not shown) (see FIG. 20).

  A cancel base 361 is provided on the floor side. A pole drive lever 365 is rotatably provided on the cancel base 361 using a pin 363. The other end of the cable 331 is connected to the pole drive lever 365, and the rotational movement of the pole drive lever 365 is transmitted to the pole interlocking lever 323 and the pole 313 via the cable 331 as a transmission means. ing. Therefore, the pole drive lever 365, the cable 331, the pole interlocking lever 323, and the pole 313 form a pole means.

  An operation plate 371 is rotatably mounted on the cancel base 361 using pins 363. The operation plate 371 is urged in the arrow K direction by a second urging means (not shown) (see FIG. 20). Further, a strap 372 as an operation unit is attached to the rotation end of the operation plate 371.

  A cancel hook 375 is rotatably attached to the operation plate 371 using a pin 373. A pin engaging portion 375 a that can be engaged with the pin 366 of the pole drive lever 365 is formed on one rotating end side of the cancel hook 375. When the pin engaging portion 375a of the cancel hook 375 is engaged with the pin 366 of the pole drive lever 365, the pole drive lever 365 and the cancel hook 375 rotate together. The cancel hook 375 is urged in the arrow L direction by a first urging means (not shown) (see FIG. 20).

The contact member 353 and the cancel link 357 constitute cancel hook driving means.
Next, the operation of the above configuration will be described with reference to FIGS.

  As shown in FIG. 24, when the upper rail 33 of the seat slide mechanism 27 is located at a position other than the rear most (last position), the lock mechanism 300 is in a locked state. At this time, the cancel link 357 is urged by a third urging means (not shown), and the pressing portion 357a presses the pressed portion 375b of the cancel hook 375. For this reason, the pin engaging portion 375a of the cancel hook 375 does not engage with the pin 366 of the pole drive lever, and the cancel hook 375 and the pole drive lever 365 do not rotate together. Therefore, even if the strap 372 is pulled and the operation plate 371 is rotated against the urging force of the second urging means, the pole drive lever 365 does not rotate and the lock mechanism 300 is not unlocked ( In FIG. 24, the state from the two-dot chain line to the solid line).

  Next, when the upper rail 33 of the seat slide mechanism 27 is located at the rearmost (last position), as shown in FIG. 25, the contact member 353 pushes the contacted portion 357b of the cancel link 357 as the contacted means, The cancel link 357 rotates against the urging force of the third urging means, and the pressing portion 357a is separated from the pressed portion 375b of the cancel hook 375. The cancel hook 375 is rotated in the direction in which the pin engaging portion 375a is engaged with the pin 366 of the pole driving lever 365 by the biasing force of the first biasing means, and the pin engaging portion 375a of the cancel hook 375 is pole driven. Engages with pin 366 of lever 365.

  Here, when the strap 372 is pulled and the operation plate 371 is rotated against the urging force of the second urging means, the cancel hook 375 rotates together with the pole drive lever 365, and the lock mechanism 300 is unlocked. (In FIG. 25, the state from the two-dot chain line to the solid line).

According to such a configuration, the following effects can be obtained.
(1) When the upper rail 33 of the seat slide mechanism 27 is positioned at the rear most (last position), the cancel mechanism 350 pushes the cancel link 357 as the contacted means to push the cancel hook 375 into the pole means. When the upper rail 33 of the seat slide mechanism 27 is positioned at a position other than the rearmost (last position), the cancel hook driving means for releasing the cancel hook 375 from the pole driving lever 365 of the pole means is engaged. As a result, the contact member 353 and the cancel link 357 are brought into contact with each other only by moving the upper rail 33 of the seat slide mechanism 27 in the rearmost direction (the last position direction), and the cancel mechanism 350 operates. Parts accuracy, mounting precision Is not required, it is possible to miniaturize the cancellation mechanism 350.
(2) The contacted means of the cancel hook driving means is rotatably provided on the lower rail 31 side of the seat slide mechanism 27, and pushes the cancel hook 375 by rotating to engage the cancel hook 375 with the pole means. Since the cancel link 357 to be released is provided, and the third biasing means for biasing the cancel link in the direction in which the cancel hook 375 is pushed is provided, the mechanism is simple.
(3) The striker 301 of the lock mechanism 300 is provided on the lower rail 31 side of the seat slide mechanism 27, and the lock mechanism main body 303 of the lock mechanism 300 is provided on the floor side. That is, by providing the lightweight striker 301 on the rotating seat slide mechanism side, the rotational operation force on the seat slide mechanism side can be reduced.
[Fifth Embodiment]
This will be described with reference to FIGS. Since the seat slide mechanism and the lock mechanism of the present embodiment are the same as the seat slide mechanism 27 and the lock mechanism 300 of the fourth embodiment, description of the seat slide mechanism and the lock mechanism of the present embodiment is omitted.
<Cancellation mechanism 400>
As shown in FIGS. 26 and 27, the top portion 33 a of the upper rail 33 is provided with an abutting member 401 protruding to the side of the upper rail 33.

  A bracket 403 is provided on the lower rail 31, and a cancel link 407 is rotatably attached to the bracket 403 using a pin 405. The cancel link 407 is rotated by being pressed by the contact member 401. The cancel link 407 is urged in the direction of arrow S by a fourth urging means (not shown) (see FIG. 26).

  A cancel base 451 is provided on the floor side. A second cancel link 455 is rotatably provided on one surface of the cancel base 451 (corresponding to the back surface in FIG. 26) using a pin 453. The second cancel link 455 has a middle portion wound around a pin 453, one end locked to the cancel base 451, and the other end locked to the second cancel link 455 (fifth spring). The biasing means 456 is biased in the direction of the arrow T (see FIGS. 26 and 29). On one end side of the second cancel link 455, a pressed contact portion 455a with which the press contact portion 407a of the first cancel link 407 is pressed is formed. The cancel base 451 is formed with an arc-shaped elongated hole 451a centered on the pin 453. On the other end side of the second cancel link 455, a pin 457 that passes through the elongated hole 451a and protrudes to the other surface (the front surface in FIG. 26) of the cancel base 451 is provided.

  A pole drive lever 463 is rotatably provided on the other surface of the cancel base 451 using a pin 461. An operation plate 465 is rotatably provided on one surface of the cancel base 451 by using a pin 461. The operation plate 465 is provided by a biasing means (not shown). In the figure, it is biased in the direction of arrow V.

  The cancel base 451 is formed with an arc-shaped long hole 451b with the pin 461 as the center. The operation plate 465 is provided with a pin 467 that passes through the elongated hole 451b and protrudes to the other surface (the surface in FIG. 26) of the cancel base 451.

  The other end of the cable 331 is connected to the pole drive lever 463, and the rotational movement of the pole drive lever 463 is transmitted to the pole interlocking lever 323 and the pole 313 via the cable 331 as a transmission means. ing. Therefore, the pole drive lever 365, the cable 331, the pole interlocking lever 323, and the pole 313 form a pole means.

Further, a strap 469 as an operation unit is attached to the rotation end of the operation plate 465.
A cancel hook 473 is rotatably attached to the pole drive lever 463 using a pin 471. A pin engaging portion 473 a that can be engaged with the pin 467 of the operation plate 465 is formed on one rotating end side of the cancel hook 473. When the pin engaging portion 473a of the cancel hook 473 is engaged with the pin 467 of the operation plate 465, the operation plate 465 and the cancel hook 473 rotate together. A pin abutting portion 473b with which the pin 457 can abut is formed on the other rotating end portion of the cancel hook 473.

  In the present embodiment, the second cancel link 455 is disposed so that the pin 457 of the second cancel link 455 contacts the pin contact portion 473b of the cancel hook 473 from the rear of the cancel hook 473.

  The cancel hook 473 has a middle portion wound around a pin 471, one end locked to the cancel base 451, and the other end locked to the cancel hook 473 (first biasing means). 475 is biased in the direction of the arrow U, that is, the direction in which the pin engaging portion 473a is engaged with the pin 467 of the operation plate 465, and the direction in which the pin abutting portion 473b is in contact with the pin 457 (FIG. 26). , See FIG. 29).

The contact member 401 and the cancel link 407 constitute cancel hook driving means.
Next, the operation of the above configuration will be described with reference to FIGS.

  As shown in FIG. 30, when the upper rail 33 of the seat slide mechanism 27 is located at a position other than the rear most (last position), the lock mechanism 300 is in a locked state. At this time, the first cancel link 407 is biased by a third biasing means (not shown), and the pressing portion 407a presses the pressed portion 455a of the second cancel link 455. For this reason, the pin engaging portion 473a of the cancel hook 473 does not engage with the pin 467 of the operation plate 465, and the cancel hook 473 and the operation plate 465 do not rotate together. Therefore, even if the strap 469 is pulled and the operation plate 465 is rotated against the urging force of the second urging means, the pole drive lever 463 does not rotate and the lock mechanism 300 is not unlocked ( In FIG. 30, the state of the two-dot chain line to the solid line).

  Next, when the upper rail 33 of the seat slide mechanism 27 is positioned at the rear most (the last position), as shown in FIG. 31, the contact portion 407b of the first cancel link 407 in which the contact member 353 is the contact means is provided. The first cancel link 407 is rotated in the arrow T direction by the urging force of the fifth urging means, whereby the cancel hook 473 is rotated in the arrow U direction. Then, the pin engaging portion 473a of the cancel hook 473 engages with the pin 467 of the operation plate 465.

  Here, when the strap 372 is pulled and the operation plate 467 is rotated against the urging force of the second urging means, the cancel hook 473 rotates with the pole drive lever 463, and the lock mechanism 300 is unlocked. (In FIG. 31, the state from the two-dot chain line to the solid line).

According to such a configuration, in addition to the effects of the fourth embodiment, the following effects can be obtained.
In the case of the fourth embodiment, the cancel link 357 presses against the cancel hook 375 from the front of the cancel hook 375 so that the upper rail 33 is positioned at the rear most (last position), and the strap is pulled to unlock the lock mechanism 300. If the upper rail 33 is moved forward and the upper rail 33 is returned to the rear most again in the locked state, the cancel hook 375 may ride on the cancel link 357 in some cases.

  On the other hand, in the case of the present embodiment, the second cancel link 455 is pressed against the cancel hook 473 from behind the cancel hook 473, so that the upper rail 33 is positioned at the rear most (last position), and the strap is pulled to lock the lock mechanism 300. Even if the upper rail 33 is once moved forward and the upper rail 33 is returned to the rearmost again, the cancel hook 473 does not ride on the second cancel link 455.

It is a figure explaining the locking mechanism of the 1st example of an embodiment, and a cancellation mechanism, and is a figure which removed one plate and an operation plate. It is a figure explaining the part in which the lock mechanism and cancellation mechanism of the example of 1st Embodiment were provided. It is sectional drawing in the cutting line CC of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the whole structure of a sheet. It is a figure explaining the seat slide lock mechanism of FIG. It is sectional drawing in the cutting line AA of FIG. FIG. 9 is a cross-sectional view taken along a cutting line BB in FIG. 8. It is a figure explaining the lock mechanism and cancellation mechanism of a 2nd form example, and is a figure which removed one plate and the operation plate. It is sectional drawing in the cutting line II of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the lock mechanism and cancellation mechanism of a 3rd form example. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the part in which the lock mechanism and cancellation mechanism of the example of 4th Embodiment were provided. It is sectional drawing in the cutting | disconnection line XX of FIG. It is sectional drawing in the cutting line OO of FIG. It is sectional drawing in the cutting line PP of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the part in which the lock mechanism and the cancellation mechanism of the example of 5th Embodiment were provided. It is a Y direction arrow line view of FIG. It is sectional drawing in the cutting line QQ of FIG. FIG. 27 is a cross-sectional view taken along a cutting line RR in FIG. 26. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining the action | operation of the cancellation mechanism of FIG. It is a figure explaining a prior art example.

Explanation of symbols

31 Lower rail 33 Upper rail 69 Pole 77 Pin (moving body)
79 Cancel hook 105 Cancel link

Claims (9)

A lower rail provided on the floor side, a seat slide mechanism comprising an upper rail provided on the seat side and movably provided on the lower rail;
Support means for rotatably supporting the front portion of the lower rail of the seat slide mechanism with respect to the floor;
A lock mechanism for locking the rear portion of the lower rail of the seat slide mechanism to the floor;
Operating means for performing an unlocking operation of the locking mechanism;
As long as the upper rail of the seat slide mechanism is not located at the last position, a cancel mechanism that cancels transmission of the operation force from the operation means to the lock mechanism;
In a sheet with
The locking mechanism is
A striker provided on one of the floor side and the lower rail side of the seat slide mechanism;
A lock groove is provided rotatably on the other side of the floor side and the lower rail side of the seat slide mechanism, and the striker can be engaged with the lock groove. The striker can be engaged with and disengaged from the lock groove. A hook that is biased toward the floor, the floor side, and the other side of the lower rail side of the seat slide mechanism, which is rotatably provided, detachable from the hook, and biased in a direction to engage with the hook. And a lock mechanism body comprising a pole means having a pole that prohibits rotation of the hook when engaged,
The cancellation mechanism is
A movable body rotatably provided on the floor side, on the side of the lower rail side of the seat slide mechanism on which the lock mechanism main body is provided;
A cancel hook that is rotatably provided on the movable body, is detachable from the pole means, and rotates together with the pole means when engaged;
First urging means for urging the cancel hook in a direction to engage with the pole means;
Second urging means for urging the movable body such that the cancel hook is directed to a position where the cancel hook can be engaged with the pole means;
An abutting portion provided on the upper rail side of the seat slide mechanism, an abutting means provided on the lower rail side of the seat slide mechanism, pressed by the abutting portion, and capable of driving the cancel hook; When the upper rail of the seat slide mechanism is located at the last position, the contact portion pushes the abutted means to engage the cancel hook with the pole means, and the upper rail of the seat slide mechanism is other than the last position. A cancel hook driving means for detaching the cancel hook from the pole means,
The sheet | seat characterized by consisting of. The striker of the locking mechanism is provided on the floor side,
The lock mechanism main body of the lock mechanism is provided on the lower rail side of the seat slide mechanism,
The pole means comprises a pole,
The movable body is provided so as to be rotatable around the rotation center axis of the pole,
The seat according to claim 1, wherein an operating force of the operating means acts on the moving body. The striker of the lock mechanism is provided on the lower rail side of the seat slide mechanism,
The lock mechanism main body of the lock mechanism is provided on the floor side,
The pole means includes the pole body and a pole drive lever that is engageable with the cancel hook and that drives the pole body via a transmission means.
The moving body is provided to be rotatable around a rotation center axis of the pole drive lever,
The seat according to claim 1, wherein an operating force of the operating means acts on the moving body. The contacted means of the cancel hook driving means is:
A cancel link that is rotatably provided on the lower rail side of the seat slide mechanism, and that is pushed by the contact portion and rotates to engage the cancel hook and the pole away from the cancel hook;
4. The sheet according to claim 2, further comprising third urging means for urging the cancel link in a direction in which the cancel hook is pushed. The contacted means of the cancel hook driving means is
A first cancel link that is rotatably provided on the lower rail side of the seat slide mechanism and is rotated by being pushed by the contact portion ;
The cancel hook driving means includes
A second cancel link provided on the floor side, capable of pressing the cancel hook in a direction away from the pawl, and rotating in a direction away from the cancel hook when pressed by the first cancel link;
A fourth urging means for urging the first cancel link in a direction contacting the second cancel link;
Fifth biasing means for biasing the second cancel link in a direction away from the cancel hook;
With
The sheet according to claim 3, wherein the second cancel link is pressed against the cancel hook from behind the cancel hook. A through hole is formed in the lower part of the lower rail of the seat slide mechanism,
The hook and pole of the lock mechanism, the movable body of the cancel mechanism, and the cancel hook are outside the lower rail of the seat slide mechanism and are provided below the lower rail.
The cancel link of the cancel mechanism is provided inside the lower rail of the seat slide mechanism,
The sheet according to claim 4, wherein the cancel link and the cancel hook are brought into contact with each other through the through hole. The hook and pole of the lock mechanism, the movable body of the cancel mechanism, and the cancel hook are outside the lower rail of the seat slide mechanism and are provided below the lower rail.
The cancel link of the cancel mechanism is provided outside the lower rail of the seat slide mechanism,
A sub-cancel hook that rotates integrally with the cancel hook of the cancel mechanism is provided outside the lower rail of the seat slide mechanism,
The seat according to claim 4, wherein the cancel link and the sub cancel hook are brought into contact with each other outside the lower rail of the seat slide mechanism. The cancel hook driving means includes
A cancel link that is rotatably provided on the lower rail side of the seat slide mechanism, and pushes the cancel hook by rotating to release the engagement between the cancel hook and the pole;
A slide plate provided on the lower rail side of the seat slide mechanism so as to be movable along the movement direction of the upper rail;
A slider portion provided on one member of the cancel link and the slide plate;
Provided on the other member of the cancel link and the slide plate, when the slider portion is movably engaged and the slide plate moves rearward, the cancel link moves away from the cancel hook. A rotating guide,
Sixth biasing means for biasing the slide plate in a direction in which the cancel link pushes the cancel hook;
When the upper rail of the seat slide mechanism is located at the last position, the slide plate is pushed to separate the cancel link from the cancel hook, and the cancel link moves toward the cancel hook. A contact portion that prohibits rotation;
The sheet according to claim 2, comprising: The seat slide mechanism is
A seat slide locking mechanism provided on one rail side of the upper rail and the lower rail and having a lock member that can be engaged and disengaged on the other rail side;
An operation lever provided at a location apart from the seat slide lock mechanism;
A cable for transmitting the movement of the operation lever to the lock mechanism;
The sheet according to claim 1, comprising:

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