JP2008087679A - Seat lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify the structure of a seat lock device for locking a seat back to a car body, the seat back being supported by the car body so as to move within the range between a using position and a storage position located at an upper position in a cabin. <P>SOLUTION: A first latch 22A having a first engaging recessed portion 26A to be engaged with a first striker 29A fixed to the car body when the seat back 12 is in the using position, and a second latch 22B having a second engaging recessed portion 26B to be engaged with a second striker fixed to the car body when the seat back 12 is in the storage position are turnably provided on the seat back 12. In addition, a pawl 24 is turnably provided on the seat back 12 so as to restrict the turn of the first and second latches 22A, 22B by engaging with first or second locking portions 27A, 27B formed on the first and second latches 22A, 22B. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a seat lock device for locking a seat member disposed in a vehicle interior to a vehicle body so as to be movable between a use position capable of supporting a back of a seated person and a storage position at the upper part of the vehicle interior. It is.

  2. Description of the Related Art Conventionally, an automobile having a seat member that is disposed in a passenger compartment and supported so as to be movable between a use position and a storage position at the upper part of the passenger compartment is known (see Patent Document 1). The seat member is configured, for example, as a seat back that supports the back of the seated person or a seat cushion that supports the buttocks of the seated person. According to the vehicle of this type, by storing the seat member in the storage position, a large space can be secured below and the luggage can be accommodated therein. Thus, this type of automobile has the advantage that the space in the passenger compartment can be used effectively.

  By the way, when the seat member is brought to the use position and used, and when the seat member is stored in the retracted position, the seat member needs to be locked with respect to the vehicle body. To satisfy this requirement, a locking device that locks the seat member with respect to the vehicle body when the seat member is in the use position, and the seat member with respect to the vehicle body when the seat member occupies the storage position. What is necessary is just to provide another locking device to lock. However, when two independent locking devices are provided in this way, not only the overall structure becomes complicated, but also the disadvantage of increased cost is inevitable.

JP 2001-130303 A

  The present invention has been made based on the above-described recognition, and an object of the present invention is to provide a seat lock device that suppresses an increase in cost and a complicated structure.

  In order to achieve the above object, according to the present invention, in the seat lock device of the type described at the beginning, the first and second latches rotatably supported on the seat member, the vehicle body side, the first lock A first striker for locking the seat member in the use position by engaging with the latch of the vehicle, and provided on the vehicle body side, and locking the seat member in the retracted position by engaging with the second latch The second striker to maintain the engagement of the first striker and the first latch, and the release of the engagement is restricted, and the engagement between the second striker and the second latch The present invention proposes a seat lock device characterized in that it includes maintaining means and restricting means for restricting the disengagement of the engagement (claim 1).

  In order to achieve the above object, according to the present invention, in the seat lock device of the type described at the beginning, the first and second latches rotatably supported by the seat member and the seat member can be rotated. A pole that is supported and has first and second pawls, first and second strikers fixed to the vehicle body, and a first that biases rotation of the first and second latches, respectively. And the second spring, and when the seat member occupies the use position, the first striker is engaged with the first engagement recess formed in the first latch, and the first spring is engaged. The first latching portion formed on the latch is engaged with the first pawl portion of the pole, and the rotation of the first latch is prohibited against the action of the first spring, and the seat Lock the member against the car body, rotate the pole, The first latch of the first latch is removed from the first latching portion of the first latch, and the first latch is rotated by the action of the first spring, and the first latch of the first latch is rotated. By releasing the engagement between the engaging recess and the first striker, and when the seat member occupies the retracted position, the second latch formed on the second latch is released. The second striker is engaged with the engaging recess, and the second pawl portion of the pole is engaged with the second locking portion formed on the second latch, so that the action of the second spring is achieved. The second latch is inhibited from rotating, the seat member is locked with respect to the vehicle body, the pawl is rotated, and the second pawl portion of the pawl is connected to the second latch of the second latch. The second latch is rotated by the action of the second spring, and the second latch is rotated. A seat lock device is proposed, which is configured to release the lock on the seat member by releasing the engagement between the second engagement recess of the switch and the second striker. ).

  Furthermore, it is preferable that the seat lock device according to claim 2 further includes a pole rotation operation device for rotating the pole (claim 3).

  Further, in the seat lock device according to any one of the first to third aspects, the seat member can be configured to be a seat back that supports the back of the seated person (claim 4).

  Furthermore, in the seat lock device according to any one of claims 1 to 3, the seat member may be configured to be a seat cushion that supports a seated person's buttocks (claim 5).

  According to the first, fourth, and fifth aspects of the invention, the first and second latches can be regulated by one regulating means, so that the structure of the seat lock device can be simplified and the cost thereof can be reduced. Is possible.

  According to the inventions according to claims 2, 4 and 5, since the rotation of the first and second latches can be restricted by one pole, the structure of the seat lock device can be simplified, and Costs can be reduced.

  According to the invention of claim 3, the pole can be reliably rotated.

  Hereinafter, an embodiment of a seat lock device for locking a seat back as an example of a seat member to a vehicle body will be described in detail with reference to the drawings.

  FIG. 1 to FIG. 3 are schematic cross-sectional views of an automobile in which the interior of the vehicle interior is clarified. Reference numeral Fr in these figures indicates the forward direction of the automobile, and the direction perpendicular to the paper surface of FIGS. 1 to 3 perpendicular to the forward direction Fr is the vehicle width direction. In this specification, the terms “front” or “rear” mean front and rear with respect to the forward direction Fr of the automobile.

  The vehicle body 1 shown in FIG. 1, that is, its main body, as is known per se, is a roof panel 2 that forms the upper part of the vehicle body 1, a floor panel 3 that forms the floor surface of the passenger compartment R, It is comprised from various panels, such as the side panel 4 which comprises each side part of the vehicle width direction of the room | chamber R, and only the one side panel 4 is shown by FIG. A back door 5 is disposed at the rear opening of the vehicle body 1, and the back door 5 is supported by the vehicle body 1 so as to be capable of rotating and opening in the directions of arrows A and B. In addition, a resin ceiling member 6 is disposed on the vehicle interior side of the roof panel 2, and the upper portion of the vehicle compartment R is partitioned by the ceiling member 6. Further, front and rear side doors 9 and 9A that are supported by the vehicle body 1 so as to be able to be opened and closed are disposed in the door openings 7 and 7A formed in the side panels 4 of the vehicle body 1. A window glass 10 is arranged. Further, the surface of the side panel 4 on the vehicle interior side can be covered with an interior material (not shown).

  A seat 50 made of a front seat and a seat 51 made of a rear seat arranged behind the front seat are arranged in the vehicle interior, and further, a seat 11 configured as a third seat is arranged behind the seat 51. ing. As shown in FIG. 1, the seat 11 has a seat back 12 that supports the back of the seated person and a seat cushion 13 that supports the buttocks of the seated person, like the other seats 50 and 51. In FIG. 1, the seated person P is simplified and shown by a two-dot chain line. The position of the seat 11 shown in FIG. 1 where the seated person P can sit on the seat 11 is the use position of the seat 11. At this time, the seat cushion 13 is maintained in a substantially horizontal posture, and the seat back 12 is maintained in a posture in which the seat cushion 12 stands substantially perpendicular to the seat cushion 13.

  The seat cushion 13 includes a seat cushion frame (not shown), a pad (not shown) provided around the seat cushion frame, and a skin covering the pad, and the seat back 12 is also a seat (not shown). The back frame is composed of a pad (not shown) provided around the back frame, and a skin covering the pad.

  Further, the lower part of the seat back 12 when the seat 11 occupies the use position shown in FIG. 1 and the rear part of the seat cushion 13 are connected via a hinge pin 15 so as to be rotatable. When the seat 11 occupies the use position, the seat cushion 13 is locked with respect to the vehicle body 1 and supported by the vehicle body 1 by a seat cushion locking device (not shown). The seat back 12 is also locked with respect to the vehicle body 1 by a seat lock device for seat back, which will be described later, and the seat back 12 is fixed at a substantially vertically raised position shown in FIG. As a result, the seat back 12 of the seat 11 in the use position can reliably support the back of the seated person P, and the seat cushion 13 can reliably support the buttocks of the seated person P. The hinge pin 15 and each element to be described later provided on the seat back 12 are covered with a cover 16 detachably attached to each side portion of the seat back 12.

  As shown in FIG. 3, the seat 11 described above is configured to be stored in the upper part of the passenger compartment with the seat back 12 and the seat cushion 13 folded. The position of the seat 11 at this time is the storage position of the seat.

  In addition, as shown in FIG. 1, each side of the seat back 12 in the vehicle width direction is provided with a rotating arm 17 (only one is shown in the figure), and the base end side of each rotating arm 17 is It is connected to each side panel 4 of the vehicle body 1 via a pivot pin 18 so as to be pivotable, and the distal end side of each pivot arm 17 is fixed to the upper part of each side portion in the vehicle width direction of each seat back 12. .

  In order to store the seat 11 in the use position shown in FIG. 1 in the retracted position, the seat cushion 13 is rotated in the direction of arrow C around the hinge pin 15 after unlocking the seat lock device for the seat cushion described above. Then, as shown in FIG. 2, the seat cushion 13 is put on the seat back 12. Next, after the lock of the seat lock device for the seat back is released as described later, the seat cushion 13 and the seat back 12 are lifted upward as indicated by an arrow D in FIG. As a result, the pivot arm 17 together with the seat cushion 13 and the seat back 12 pivots around the pivot pin 18 in the direction of the arrow D, and the seat 11 is stored in the storage position at the upper part of the vehicle compartment shown in FIG.

  When the seat 11 is stored in the retracted position as described above, the seat back 12 and the seat cushion 13 of the seat 11 are positioned in a substantially horizontal posture, the seat back 12 is positioned below, and the seat cushion is positioned thereon. 13 are overlapped. In this state, the seat cushion 13 is locked to the vehicle body 1 by the seat cushion seat lock device, and the seat back 12 is locked to the vehicle body 1 by the seat back seat lock device as will be described later. As a result, the entire seat 11 stored in the storage position is locked to the vehicle body 1 and supported by the vehicle body 1. Thus, since the seat 11 is stored in the upper part of the passenger compartment R, a large space can be secured below the seat 11, and luggage can be efficiently stored in this space. By reverse operation, the seat 11 can be brought to the use position shown in FIG. 1 and the seat 11 can be used.

  As described above, the seat back 12, which is an example of a seat member, is disposed in the vehicle interior so as to be movable between a use position that can support the seated person P and a storage position in the upper part of the vehicle interior. The seat back 12 is locked to the vehicle body 1 by a seat lock device for the seat back when the seat back 12 is in the use position and in the retracted position.

  FIG. 4 is an enlarged view of a part of the seat 11 that occupies the use position, and the seat back 12 with the cover 16 shown in FIGS. It is a figure which clarifies a structure. As shown in FIG. 4, a seat cushion bracket 19 fixed to a seat cushion frame (not shown) is disposed on each side of the seat cushion 13 in the vehicle width direction (in FIG. Only the seat cushion bracket 19 is shown). Similarly, a seat back bracket 20 fixed to a seat back frame (not shown) is disposed on each side of the seat back 12 in the vehicle width direction (FIG. 4 shows one seat back bracket). 20 only). The seat cushion bracket 19 and the seat back bracket 20 are made of a high-strength material such as metal or hard resin, for example.

  Each seat cushion bracket 19 is integrally provided with the above-described hinge pin 15, and a hole formed in each seat back bracket 20 is rotatably fitted to each hinge pin 15. 20 is supported by each hinge pin 15. Thereby, as mentioned above, the seat back 12 and the seat cushion 13 are connected so as to be relatively rotatable.

  The seat back bracket 20 shown in FIG. 4 is provided with each component of the seat back locking device shown in FIG. Hereinafter, the specific configuration of the seat lock device will be clarified.

  As shown in FIGS. 4 and 5, support shafts 21A and 21B are fixed to the seat back bracket 20, and first and second latches 22A and 22B are rotatably supported on the support shafts 21A and 21B, respectively. ing. Similarly, a support shaft 23 is fixed to the seat back bracket 20, and one pole 24 is rotatably supported on the support shaft 23. The pole 24 has first and second claw portions 25A and 25B. The first and second latches 22A and 22B are formed with first and second engaging recesses 26A and 26B and first and second locking portions 27A and 27B, respectively.

  In the seat lock device of the present example, the first and second latches 22A and 22B and the pole 24 are provided with the seat back of the seat back 12 via the seat back bracket 20 on which the support shafts 21A, 21B and 23 are projected. Although supported by the frame, these elements 22A, 22B, and 24 can be directly supported rotatably on the seat back frame.

  Further, the first latch 22A and the seat back bracket 20 are respectively engaged with the end portions of the first spring 28A made of a tension spring. Similarly, the second latch 22B and the seat back bracket 20 are provided with a tension spring. Each end portion of the second spring 28B made up is locked. The first spring 28A biases the first latch 22A so that the first latch 22A rotates in the direction of arrow E in FIG. 5, and the second spring 28B The second latch 22B is biased so as to rotate in the direction of arrow F in FIG. The first and second springs 28A and 28B serve to rotate and bias the first and second latches 22A and 22B in the directions of arrows E and F, respectively.

  Further, as shown in FIGS. 1 to 4, the first striker 29 </ b> A is fixed to the floor panel 3 of the vehicle body 1 in the vicinity of the seat back 12 of the seat 11 that has occupied the use position. FIG. 8 is a view similar to FIG. 4, showing the state of the seat lock device for the seat back when the seat 11 is stored in the retracted position, but as shown in FIG. 1 and FIGS. The second striker 29B is fixed to the roof panel 2 of the vehicle body 1 via the mounting bracket 30 in the vicinity of the seat back 12 of the seat 11 that has occupied the storage position. These strikers 29 </ b> A and 29 </ b> B are substantially U-shaped as shown in an enlarged view in FIG. 6, and their base end portions 31 </ b> A and 31 </ b> B are fixed to the vehicle body 1.

  Further, as shown in FIGS. 4 and 5, a pole operation bracket 32 is fixed to the pole 24, and a lower end portion of the cable 33 is locked to a distal end portion of the pole operation bracket 32. The cable 33 is guided by a cable guide 34 covered by the cover 16 shown in FIG. 1 and extends upward along the side portion of the seat back 12, and as shown in FIG. A knob 35 is fixed to the head. The knob 35 is located outside the cover 16.

  As shown in FIGS. 4 and 5, the end portions of a return spring 36 made of a tension spring are engaged with the pole operation bracket 32 and the seat back bracket 20, respectively.

  As described above, the seat lock device of the present example is supported by the first and second latches 22 </ b> A and 22 </ b> B rotatably supported by the seat back 12, which is an example of a seat member, and rotatably supported by the seat back 12. A first pole 24 having first and second pawl portions 25A and 25B, first and second strikers 29A and 29B fixed to the vehicle body 1, and first and second latches. The first spring 28A and the second spring 28B for urging and rotating 22A and 22B, respectively, the cable 33 to which the knob 35 is attached, the return spring 36, and the pole operation bracket 32. ing.

  FIG. 4 shows the state of the seat lock device for the seat back when the seat cushion 13 and the seat back 12 occupy the use position. At this time, the first engagement formed in the first latch 22A is shown. The first striker 29A is engaged with the recess 26A. The first striker 29A provided on the vehicle body side is engaged with the first latch 22A, and the seat member formed of the seat back 12 is locked and held at the use position. At this time, the first latch 22A is urged to rotate in the direction of the arrow E by the first spring 28A, but the first latching portion 27A formed on the first latch 22A has a first pole 24 on the first latching portion 27A. Since the pawl 25A is engaged, the first latch 22A does not rotate. The rotation of the first latch 22A is prohibited against the action of the first spring 28A. Thereby, the seat back 12 which is an example of a seat member is locked with respect to the vehicle body 1. At this time, the second claw portion 25B of the pole 24 does not engage with the second locking portion 27B of the second latch 22B.

  In order to store the seat 11 in the use position shown in FIGS. 1 and 4 in the retracted position, as described above, the seat cushion device for the seat cushion (not shown) is unlocked and the seat cushion 13 is shown in FIG. 1, the seat cushion 13 is overlapped with the seat back 12 as shown in FIG. 2, and the operator holds the knob 35 shown in FIG. 2 by hand. Thus, the knob 35 is pulled upward against the pulling action of the return spring 36 (FIG. 4). As a result, the pole 24 rotates around the support shaft 23 by a slight angle in the clockwise direction (arrow G direction) in FIG. 4, and the first pawl portion 25A of the pole 24 moves to the first latch 22A. It comes off from the locking portion 27A. Therefore, the first latch 22A rotates around the support shaft 21A in the clockwise direction (in the direction of arrow E) in FIG. 4 by the tension action of the first spring 28A, and the first engagement of the first latch 22A. The engagement between the mating recess 26A and the first striker 29A is released, thereby releasing the lock on the seat member comprising the seat back 12 (see FIG. 7).

  As described above, the operator releases his hand from the knob 35 when the first claw portion 25A is disengaged from the first locking portion 27A of the first latch 22A. Then, the pole 24 rotates a slight angle around the support shaft 23 in the counterclockwise direction (the direction opposite to the arrow G in FIG. 4) by the tension action of the return spring 36. At this time, the first and second pawl portions 25A and 25B of the pole 24 are not engaged with the locking portions 27A and 27B of any of the latches 22A and 22B, as shown in FIG. This state is the unlocked state of the seat lock device.

  Next, as described above, the turning arm 17 shown in FIG. 2 is turned together with the seat cushion 13 and the seat back 12 in the direction of arrow D, and the seat 11 is placed in the retracted position shown in FIG. However, when the seat 11 is rotated to the position immediately before reaching the retracted position, the contact portion 37B of the second latch 22B shown in FIG. 7 hits the second striker 29B, and the second latch 22B. Is pressed by the second striker 29B, the second latch 22B rotates around the support shaft 21B by a slight angle in the counterclockwise direction (arrow H direction) in FIG. As shown in FIG. 8, the second striker 29B is engaged with the second engaging recess 26B formed in the second latch 22B, and the second pawl 25B of the pole 24 is engaged with the second latch 22B. Formed Engaging the second engagement portion 27B. At this time, the seat cushion 13 and the seat back 12 are stored in the storage position shown in FIGS. In this state, the first claw portion 25A of the pole 24 does not engage with the first locking portion 27A of the first latch 22A.

  As described above, when the seat member including the seat cushion 13 and the seat back 12 occupies the storage position, the second striker 29B is engaged with the second engagement recess 26B formed in the second latch 22B. To do. At that time, the second latch 22B is urged to rotate in the direction indicated by the arrow F in FIG. 8 by the second spring 28B, but the second latching portion formed in the second latch 22B. Since the second pawl portion 25B of the pole 24 is engaged with 27B, the second latch 22B does not rotate. The rotation of the second latch 22B is prohibited against the action of the second spring 28B. As a result, the seat member formed of the seat back 12 is locked with respect to the vehicle body 1. In this way, the second striker 29B provided on the vehicle body side engages with the second latch 22B, and the seat member formed of the seat back 12 is locked and held at the retracted position.

  In order to bring the seat 11 to the use position, as described above, the seat lock device for the seat cushion (not shown) is unlocked, and the operator grasps the knob 35 shown in FIG. The knob 35 is pulled rearward against the pulling action of the return spring 36. As a result, the pole 24 shown in FIG. 8 rotates a slight angle around the support shaft 23 in the clockwise direction (arrow G direction) in FIG. 8, and the second pawl portion 25B of the pole 24 becomes the second latch 22B. Is disengaged from the second locking portion 27B. Therefore, the second latch 22B rotates in the clockwise direction (arrow F direction) in FIG. 8 around the support shaft 21B by the tensile action of the second spring 28B, and the second engagement of the second latch 22B. The engagement between the mating recess 26B and the second striker 29B is released (see FIG. 7). Thereby, the lock | rock with respect to the sheet | seat member consisting of the seat back 12 is cancelled | released.

  In this case as well, the operator releases his hand from the knob 35 when the second claw portion 25B is disengaged from the second locking portion 27B of the second latch 22B. Thereby, the pole 24 rotates a slight angle around the support shaft 23 in the counterclockwise direction (the direction opposite to the arrow G) in FIG. At this time, the first and second claw portions 25A and 25B of the pole 24 do not engage with the locking portions 27A and 27B of any of the latches 22A and 22B. The seat lock device for the seat back is in the unlocked state shown in FIG.

  Next, the rotating arm 17 shown in FIG. 3 is rotated together with the seat cushion 13 and the seat back 12 in the direction opposite to the arrow D, and the seat cushion 13 is rotated counterclockwise in FIG. 1) to bring the seat 11 to the use position shown in FIG. At that time, when the seat back 12 rotates to the position immediately before reaching the use position shown in FIG. 2, the contact portion 37A of the first latch 22A shown in FIG. 7 hits the first striker 29A. Since the first latch 22A is pressurized by the first striker 29A, the first latch 22A rotates around the support shaft 21A by a slight angle in the clockwise direction (arrow I direction) in FIG. As a result, as shown in FIG. 4, the first striker 29A engages with the first engaging recess 26A formed in the first latch 22A, and the first pawl 25A of the pole 24 moves. The first latching portion 27A formed on the first latch 22A is engaged. At this time, the seat cushion 13 and the seat back 12 occupy the positions shown in FIG. 2, and the entire seat cushion 13 and the seat back 12 occupy the use positions shown in FIGS. In this state, the second claw portion 25B of the pole 24 does not engage with the second locking portion 27B of the second latch 22B.

  As described above, the pole 24 regulates the maintenance and release of the engagement between the first striker 29A and the first latch 22A, and the second striker 29B and the second latch 22B. This example constitutes an example of a regulating means for regulating the maintenance of the engagement and the release of the engagement.

  As described above, according to the seat lock device of the present example, even when the seat member made of the seat back 12 is in the use position and when it is in the retracted position, the restricting means made of one pole 24 is used. Since the seat back 12 can be locked to the vehicle body 1, the structure of the seat lock device can be simplified and the cost can be reduced.

  In the seat lock device described above, the cable 33 to which the knob 35 is attached, the return spring 36, and the pole operation bracket 32 constitute a pole rotation operation device for rotating the pole 24. A simple pole rotation operation device can also be adopted. For example, the pole 24 can be rotated by providing a knob integrally with the pole 24 and rotating the knob. In this case, this knob constitutes a pole rotation operation device.

  The example of the seat 11 in which the seat back 12 and the seat cushion 13 are connected via the hinge pin 15 has been described above. For example, the present invention rotates the seat cushion 13 to the storage position indicated by a two-dot chain line in FIG. Thus, the present invention can be widely applied to automobiles and the like configured so that only the seat back 12 is stored in the storage position at the upper part of the passenger compartment.

  Moreover, in the above-described embodiment, the seat lock device in the case where the seat member is a seat back that supports the back of the seated person has been described, but when the seat member is a seat cushion that supports the buttocks of the seated person The present invention can also be applied to a seat lock device for the seat member.

It is a schematic sectional drawing of a motor vehicle, Comprising: It is the figure which clarified the vehicle interior when a seat occupied the use position. FIG. 2 is a schematic sectional view similar to FIG. 1, showing a state in which the seat cushion is rotated toward the seat back. FIG. 2 is a schematic cross-sectional view similar to FIG. 1, showing a state where the seat is brought to the storage position. It is explanatory drawing which shows the state of a seat locking device when a seat cushion and a seat back exist in a use position. It is a perspective view which shows the component of the seat locking device supported by the seat back bracket. It is a front view of a striker. It is explanatory drawing which shows a state when the lock | rock of a seat locking device is cancelled | released. It is explanatory drawing which shows the state of a seat locking device when a seat cushion and a seat back are stored in the storing position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 12 Seat back 22A 1st latch 22B 2nd latch 24 Pole 25A 1st claw part 25B 2nd claw part 26A 1st engagement recessed part 26B 2nd engagement recessed part 27A 1st latching | locking part 27B 2nd latching | locking part 28A 1st spring 28B 2nd spring 29A 1st striker 29B 2nd striker P Seated person R compartment

Claims (5)

In a seat lock device that locks a seat member disposed in a vehicle interior so as to be movable between a use position capable of supporting a seated person and a storage position at the upper part of the vehicle interior with respect to the vehicle body,
First and second latches rotatably supported by the seat member, and a first latch provided on the vehicle body side and engaged with the first latch to lock the seat member in the use position. A striker, a second striker, which is provided on the vehicle body side and engages with the second latch to lock the seat member in the retracted position, and the first striker and the first latch. And maintaining the engagement, restricting the release of the engagement, maintaining the engagement between the second striker and the second latch, and restricting means for restricting the release of the engagement. A seat lock device. In a seat lock device that locks a seat member disposed in a vehicle interior so as to be movable between a use position capable of supporting a seated person and a storage position at the upper part of the vehicle interior with respect to the vehicle body,
First and second latches rotatably supported by the seat member, a pole rotatably supported by the seat member and having first and second pawl portions, and fixed to the vehicle body The first and second strikers, and the first and second springs for rotating and biasing the first and second latches, respectively, and when the seat member occupies the use position, The first striker is engaged with a first engagement recess formed in the latch of the first latch, and the first pawl portion of the pole is engaged with the first locking portion formed in the first latch. Against the action of the first spring, prohibiting the rotation of the first latch, locking the seat member with respect to the vehicle body, rotating the pole, the first pawl portion of the pole Is removed from the first locking portion of the first latch, and the action of the first spring The first latch is rotated to release the engagement between the first engagement recess of the first latch and the first striker, thereby unlocking the seat member and storing the seat member. When the position is occupied, the second striker is engaged with the second engaging recess formed in the second latch, and the second locking portion formed in the second latch is engaged with the pole. The second claw portion is engaged, the second latch is prohibited against the action of the second spring, the seat member is locked to the vehicle body, and the pole is rotated. The second pawl portion of the pole is removed from the second latching portion of the second latch, and the second latch is rotated by the action of the second spring, so that the second latch By disengaging the engagement recesses of the second and the second striker, Seat lock apparatus characterized by being configured to release the lock. The seat lock device according to claim 2, further comprising a pole rotation operation device for rotating the pole. The seat lock device according to any one of claims 1 to 3, wherein the seat member is a seat back that supports a back of a seated person. The seat lock device according to any one of claims 1 to 3, wherein the seat member is a seat cushion that supports a butt portion of a seated person.

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