JP4452565B2 - Sheet device - Google Patents

Description

  The present invention relates to a seat device including an upper member that supports tilting of an occupant and a lower member that supports the occupant in a mounted state.

  As a seat device, there is a seat device in which the seat back can be moved forward to the seat cushion side by releasing the reclining means (see, for example, Patent Document 1).

  In this seat device, the reclining means includes a reclining lever and a release pin. The reclining lever is pivotally supported and has an operation piece that is formed in a curved cam shape that is convex with respect to the release pin. The reclining lever is rotated and the release pin is pushed onto the operation piece. As a result, the release pin is moved and the reclining means is released.

  By the way, what can be stored in the state which stood up the seat back and the seat cushion is being developed as a seat apparatus.

  Here, in this seat device, if the cable is connected between the reclining means and the vehicle body side, and the seat back and the seat cushion are raised, the cable is slid by the movement of the reclining means relative to the vehicle body side. Thus, it is assumed that the reclining means is automatically released.

  However, in this case, parts that are used only for the automatic release of the reclining means (parts that define the route of the cable so that the cable is slid by moving the reclining means relative to the vehicle body side) are necessary. become. For this reason, the number of parts increases, resulting in a problem that the cost increases and the weight increases.

  In addition, since the movement of the seat back and the seat cushion when standing is large, it is necessary to lengthen the cable, and it is difficult to secure a route for sliding the cable. For this reason, there also arises a problem that it is difficult to install an automatic release mechanism for the reclining means.

Further, in this seat device, the impact on the seat back and the seat cushion when the seat back and the seat cushion are raised can be reduced, and the back of the seat back and the seat cushion when the seat back and the seat cushion are raised is reduced. It is desired that it can be reduced.
JP 2000-4971 A

  In consideration of the above facts, the present invention provides a seat device that can easily install an automatic unlocking mechanism between the upper member and the lower member when the upper member and the lower member are raised without increasing the number of parts. A seat device that can mitigate an impact on at least one of the upper member and the lower member when the upper member and the lower member are raised, and at least one of the upper member and the lower member when the upper member and the lower member are raised It is an object to obtain a sheet device that can reduce backlash.

The seat device according to claim 1 is provided in an upright state, is connected to the upper member that supports tilting of the occupant, the upper member so as to be relatively rotatable, and is locked between the upper member. She locks between the lower member for supporting a state in which the angle is placed on the occupant being drawn from the upper member by being fixed with the upper member, and the lower member and the upper member by being operated There has been provided with a release member to be released, as well as operating the releasing member by being moved, a moving member to which the upper member and the lower member with the movement is standing, the.

The seat device according to claim 2 is the seat device according to claim 1, wherein the moving member is given a biasing force and is moved by the biasing force before the release member is operated by the movement. It is a feature.

Seat device according to claim 3, in the seat apparatus according to claim 1 or claim 2, wherein the moving member is moved after the moving member has operated the release member by the weight of the upper member and the lower member And the upper member and the lower member are erected .

Seat device according to claim 4 is provided upright state, and the member on which supports the occupant of the tilting, the upper member and is rotationally coupled, said at Rukoto drawn from the upper member a lower member for supporting in a state of mounting the occupant, a moving member to which the upper member and the lower member with the movement are erected, a protruding portion provided on the movable member, at least one of the upper member and the lower member At least one of the upper member and the lower member that is applied to the moving member side and overcomes the protruding portion against the urging force before the upper member and the lower member are raised. speed of operation is provided with a Norikoshi member that will be slow.

Seat device according to claim 5, provided to the standing state, and the member on which supports the occupant of the tilting, the upper member and is rotationally coupled, said at Rukoto drawn from the upper member a lower member for supporting in a state of mounting the occupant, a moving member to which the upper member and the lower member with the movement is upright, provided on at least one of the upper member and the lower member, the upper member and lower member are and a, a Rukakarigo member at least one of the position is defined in the upper member and the lower member position is defined relative to the moving member by engaging the moving member when it is erected.

In the seat device according to claim 1, the upper member is erected by locking the angle between the upper member and the lower member by locking between the upper member and the lower member that are connected so as to be relatively rotatable. The lower member is extended from the upper member, and the lower member supports the occupant while the upper member supports the tilting of the occupant. Further, when the release member is operated, the lock between the upper member and the lower member is released.

Here, when the moving member is moved, the moving member operates the release member to release the lock between the upper member and the lower member, and the upper member and the lower member are raised as the moving member moves. Is done. Thus, the moving member for raising the upper member and the lower member automatically releases the lock between the upper member and the lower member (only by the operation of raising the upper member and the lower member). For this reason, the automatic unlocking mechanism between the upper member and the lower member can be easily installed without increasing the number of parts.

In the seat device according to claim 2, since the urging force is applied to the moving member and the moving member is moved by the urging force before the release member is operated by the movement, the upper member and the lower member are easily raised. be able to.

In the seat device according to claim 3, since the moving member is moved by the dead weight of the upper member and the lower member after the moving member operates the release member, the upper member and the lower member are erected. The lower member can be erected.

In the seat device according to claim 4, the upper member is provided in a standing state, the lower member is extended from the upper member, the lower member supports the occupant and the upper member is Support the occupant's tilting. Moreover, the upper member and the lower member are connected so that relative rotation is possible, and an upper member and a lower member stand up with the movement of a moving member.

Here, the moving member is provided with a projecting portion, and an urging force to the moving member side is applied to at least one of the upper member and the lower member, and the upper member and the lower member are erected. At least one of the operating speed of the upper member and lower member Norikoshi member before it passes over against the biasing force of the protrusion Ru is slow. For this reason, the impact to at least one of the upper member and the lower member when the upper member and the lower member are erected can be reduced.

In the seat device according to claim 5, the upper member is provided in a standing state, the lower member is extended from the upper member, the lower member supports the occupant and the upper member is Support the occupant's tilting. Moreover, the upper member and the lower member are connected so that relative rotation is possible, and an upper member and a lower member stand up with the movement of a moving member.

  Here, when the upper member and the lower member are erected, the engagement member provided on at least one of the upper member and the lower member is engaged with the movement member, so that the position of the engagement member relative to the movement member is increased. It is prescribed. Thereby, since at least one position of an upper member and a lower member is prescribed | regulated, the play of at least one of an upper member and a lower member can be reduced.

  FIG. 1 shows a side view of a seat device 10 according to an embodiment of the present invention as viewed from the left side of a vehicle. In the present embodiment, the front of the vehicle is referred to as “front”, the rear of the vehicle is referred to as “rear”, the right side of the vehicle is referred to as “right”, and the left side of the vehicle is referred to as “left”.

  The seat device 10 according to the present embodiment is disposed in a vehicle compartment 12 of the vehicle. A pair of substantially long plate-like base links 16 are fixed to the floor portion 14 of the passenger compartment 12, and the base links 16 are arranged in parallel in the front-rear direction. A columnar front striker 18 is fixed to the base link 16 at a substantially central portion in the front-rear direction, and a columnar rear striker 20 is fixed at the rear end.

  A base end (lower end) of the long plate-like front storage link 22 is rotatably supported at the front portion of the base link 16, and a long plate shape as a moving member is provided at the rear portion of the base link 16. The base end (lower end) of the rear storage link 24 is supported so as to be rotatable (movable). A spring (not shown) is spanned between the base link 16 and at least one of the front storage link 22 and the rear storage link 24, and the front storage link 22 and the rear storage link 24 have a front side (one side). And the urging | biasing force to the direction rotated upwards is provided.

  The front end (upper end) of the left (one) rear storage link 24 is formed in a circular plate shape that is substantially divided into four, and is formed into a cam portion 26 that protrudes downward. A first projecting portion 28 and a second projecting portion 30 as projecting portions are formed adjacent to each other at the front portion of the outer peripheral surface of the cam portion 26, and the first projecting portion 28 and the second projecting portion 30 are continuous. The inner peripheral surface to be formed is formed in a substantially arc shape in cross section (see FIG. 5).

  The front end and the rear portion of the lower portion of the substantially L-shaped base 32 are rotatably supported at the front end (upper end) of the front storage link 22 and the front end (upper end) of the rear storage link 24. A front lock portion 34 is provided at the front portion of the lower portion of the base 32. When the rear striker 20 of the base link 16 is locked to the front lock portion 34, the base 32, the front storage link 22, and the rear storage link. 24 is prevented from rotating and fixed. A guide hole 36 is formed through the upper end of the rear portion of the lower part of the left (one) base 32, and the guide hole 36 extends obliquely upward and frontward in a curved state upward (see FIG. 5). ).

  A rear lock portion 38 is provided at the rear portion of the lower portion of the base 32. A lock hole 40 is formed through the rear lock portion 38, and the lock hole 40 is opened downward. A plate-like hook 42 is rotatably provided on the rear lock portion 38 (see FIG. 6). A holding hole 44 is formed through the hook 42, and the holding hole 44 is opened to the rear side (the other side). The hook 42 is arranged at a position where the holding hole 44 overlaps the lock hole 40 in a state where a biasing force in the direction of arrow A in FIG. 6 is applied.

  A rear portion of a seat cushion 46 as a lower member is fixed between lower portions of the pair of bases 32, and the seat cushion 46 extends substantially horizontally from the pair of bases 32 to the front side. Further, a lower portion of a seat back 48 as an upper member is rotatably supported between upper portions of the pair of bases 32. A recliner 50 is bridged between the rear portion of the seat cushion 46 and the lower portion of the seat back 48, and the recliner 50 locks between the seat cushion 46 and the seat back 48, so that the seat cushion 46 and the seat back are locked. The angle with 48 is fixed. Accordingly, the seat cushion 46 and the seat back 48 are brought into a normal use state, and the seat cushion 46 supports the occupant (not shown) seated on the seat device 10 while being placed thereon, and the seat back 48 is supported by the occupant. Support tilting.

  The recliner 50 is provided with a cylindrical release pin 52 as a release member, a passenger member, and an engagement member. The release pin 52 protrudes from the guide hole 36 to the left of the left base 32, and An urging force is applied to the lower portion of the guide hole 36. Further, the recliner 50 applies an urging force to the seat back 48 in a direction in which the seat cushion 46 is rotated rearward and upward.

  A release lever 54 (push lever) is provided on the upper rear surface of the seat back 48, and the release lever 54 is connected to the front lock portion 34 and the rear lock portion 38 of each base 32 and is pushed to the front side. This is a possible configuration.

  Next, the operation of the present embodiment will be described.

  In the seat device 10 having the above configuration, the seat back 48 stands up substantially vertically by locking the angle between the seat back 48 and the seat cushion 46 by the recliner 50 and fixing the angle of the seat back 48 with respect to the seat cushion 46. In addition, the seat cushion 46 is in a normal use state in which the seat cushion 46 is extended substantially horizontally from the seat back 48 to the front side. As a result, the seat cushion 46 supports the occupant in a mounted state, and the seat back 48 supports the occupant's tilting.

  When the release lever 54 is temporarily pushed forward from the normal use state of the seat back 48 and the seat cushion 46, the lock to each front lock portion 34 of each rear striker 20 is released, and each front storage is performed. The link 22 and each rear storage link 24 are rotated forward and upward about the base end by the applied urging force while supporting the seat back 48 and the seat cushion 46, and the intermediate storage state shown in FIG. The

  2, one side surface of the cam portion 26 at the tip of the left rear storage link 24 is in contact with the release pin 52 (see the two-dot chain line in FIG. 5). For this reason, the seat back 48 and the seat cushion 46 (including each base 32) are rotated to the rear side, and each rear storage link 24 is rotated to the front side and the lower side with the base end as a center. One side of the portion 26 presses the release pin 52, and the release pin 52 is moved to the outer peripheral surface of the cam portion 26 against the applied urging force and guided while being guided by the guide hole 36. It is moved to the top of the hole 36. Accordingly, the urging force applied by the recliner 50 between the seat back 48 and the seat cushion 46, the seat back 48, and the seat are released by releasing the lock between the seat cushion 46 and the seat back 48 by the recliner 50. Due to the weight of the cushion 46, each front storage link 22 is rotated rearward and downward about the base end, and each rear storage link 24 is rotated frontward and lower about the base end, The release pin 52 is moved on the outer peripheral surface of the cam portion 26, and as shown in FIG. 3, the seat back 48 and the seat cushion 46 are erected and placed in a forward retracted state.

  In the front storage state shown in FIG. 3, as shown in detail in FIG. 6, each front striker 18 is inserted into the lock hole 40 of each rear lock portion 38 and each hook 42 is attached by each front striker 18. Each front striker 18 is inserted into the holding hole 44 of each hook 42 by being temporarily rotated in the direction of the opposite arrow A in FIG. 6 against the force. As a result, the front strikers 18 are held in the lock holes 40 and the holding holes 44 and locked to the rear lock portions 38, whereby the front storage state of the seat back 48 and the seat cushion 46 is locked. Further, the release pin 52 moves over the first protrusion 28 against the urging force to which the release pin 52 that moves on the outer peripheral surface of the cam portion 26 is applied, so that the release pin 52 is connected to the first protrusion 28 and the second protrusion 30. (Refer to the one-dot chain line in FIG. 5).

  Here, when the left rear storage link 24 is rotated forward from the normal use state of the seat back 48 and the seat cushion 46, the cam portion 26 of the rear storage link 24 presses the release pin 52. The lock between the seat cushion 46 and the seat back 48 by the recliner 50 is released, and the seat back 48 and the seat cushion 46 are set to the front retracted state. As described above, the left rear storage link 24 for setting the seat back 48 and the seat cushion 46 to the front storage state automatically locks the seat cushion 46 and the seat back 48 (the seat back 48 and the seat cushion 46). Is released only by setting to the forward retracted state. For this reason, the automatic unlocking mechanism of the lock between the seat cushion 46 and the seat back 48 can be easily installed without increasing the number of parts.

  Further, before the cam portion 26 presses the release pin 52, the front storage links 22 and the rear storage links 24 are moved by the urging force. In addition, after the cam portion 26 presses the release pin 52, the seat back 48 and the seat cushion 46 are brought into the forward retracted state by the urging force and the own weight of the recliner 50. For this reason, the seat back 48 and the seat cushion 46 can be easily set in the forward retracted state.

  Further, immediately before the seat back 48 and the seat cushion 46 are set to the forward retracted state, the seats are overcome by overcoming the first projecting portion 28 on the outer peripheral surface of the cam portion 26 against the urging force to which the release pin 52 is applied. The operating speed of the back 48 and the seat cushion 46 is slowed down. For this reason, it is possible to reduce the impact on the seat back 48 and the seat cushion 46 when the seat back 48 and the seat cushion 46 are in the forward retracted state, and it is necessary to additionally provide a mechanism for reducing the impact. Can be eliminated.

  Further, when the seat back 48 and the seat cushion 46 are set in the forward retracted state, not only the front strikers 18 are locked to the rear lock portions 38, but also the release pins 52 are provided on the first outer peripheral surface of the cam portion 26. The position of the release pin 52 relative to the left rear storage link 24 is defined by being fitted between the protrusion 28 and the second protrusion 30. As a result, the position of the seat back 48 is defined, so that the backlash of the seat back 48 and the seat cushion 46 (especially the backlash at the upper end portions of the seat back 48 and the seat cushion 46) can be reduced, and the seat back is specially provided. Therefore, it is possible to eliminate the need to separately provide a mechanism for locking the front storage state of 48 and the seat cushion 46.

  On the other hand, when the release lever 54 is temporarily pushed forward from the forward retracted state of the seat back 48 and the seat cushion 46, the counter arrow A in FIG. 6 opposes the urging force applied to each hook 42. The front strikers 18 are temporarily detached from the holding holes 44 of the hooks 42, and the locks of the front strikers 18 to the rear lock portions 38 are released. Further, in this state, the front storage links 22 and the rear storage links 24 rotate rearward about the base end while the seatback 48 and the seat cushion 46 are rotated while being overlapped with each other. As a result, each front striker 18 is disengaged from the lock hole 40 of each rear lock portion 38, and each rear striker 20 is locked to each front lock portion 34 as shown in FIG. Is done.

  4, after the release pin 52 moves over the first protrusion 28 on the outer peripheral surface of the cam portion 26 against the applied urging force and is moved on the outer peripheral surface of the cam portion 26, By moving away from the cam portion 26, the cam portion 26 is moved to the lower portion of the guide hole 36 while being guided to the guide hole 36 by the applied urging force.

  Furthermore, in the state where the release pin 52 is moved against the urging force applied to the upper part of the guide hole 36 from the state in the middle of the return, the seat back 48 resists the urging force by the recliner 50 and is located on the rear side and the upper side. , The seat back 48 is raised and then moved to the lower portion of the guide hole 36 by the urging force to which the release pin 52 is applied, and the space between the seat back 48 and the seat cushion 46 is recliner 50. Locked. As a result, the seat back 48 and the seat cushion 46 are returned to the normal use state shown in FIG.

  Here, if the first protrusion 28 and the second protrusion 30 do not exist on the outer peripheral surface of the cam portion 26, the rotation of the seat back 48 is prevented from the front retracted state of the seat back 48 and the seat cushion 46. When the release lever 54 is pushed in the direction of arrow F1 (front side) in FIG. 6, each hook 42 and each front striker 18 come into contact with each other, and each front striker 18 connects each hook 42. 6 receives a pressing force in the direction of arrow F2 (rear side) in FIG. 6, and each hook 42 receives a frictional force in the direction of arrow F3 (lower side) in FIG. 6 with each front striker 18. Therefore, even if the release lever 54 is pushed in the direction of the arrow F1 in FIG. 6, the hooks 42 cannot be rotated in the direction of the counter arrow A in FIG. There is a possibility that the lock to the lock unit 38 cannot be released.

  On the other hand, in the present embodiment, the release pin 52 is fitted between the first protrusion 28 and the second protrusion 30 on the outer peripheral surface of the cam portion 26 when the seat back 48 and the seat cushion 46 are retracted forward. Yes. Therefore, even when the release lever 54 is pushed in the direction of the arrow F1 in FIG. 6 in a state where the rotation of the seat back 48 is not prevented from the forward retracted state of the seat back 48 and the seat cushion 46, the release pin 52 The first protrusion 28 receives a pressing force in the direction of arrow F4 (upper side) in FIG. 6 to generate a pressing force in the direction of arrow F2 in FIG. 6 from each front striker 18 to each hook 42. Thus, it is possible to prevent a frictional force in the direction of arrow F3 in FIG. 6 from being generated with each front striker 18 on each hook 42. As a result, even when the rotation of the seat back 48 is not blocked, the release lever 54 is pushed in the direction of the arrow F1 in FIG. By rotating in the direction, the lock of each front striker 18 on each rear lock portion 38 can be released.

  In the present embodiment, the rear storage link 24 supports the seat back 48 and the seat cushion 46, but the rear storage link 24 may support either the seat back 48 or the seat cushion 46. Good.

It is the side view seen from the vehicle left side which shows the normal use state of the seat apparatus concerning an embodiment of the invention. It is the side view seen from the vehicle left side which shows the storing middle state of the seat device concerning an embodiment of the invention. It is the side view seen from the vehicle left side which shows the front stowage state of the seat device concerning an embodiment of the invention. It is the side view seen from the vehicle left side which shows the return middle state of the seat apparatus concerning an embodiment of the invention. It is the side view seen from the vehicle left side which shows in detail the operation | movement of the release pin with respect to rotation of the rear storage link in the seat apparatus which concerns on embodiment of this invention. It is the side view seen from the vehicle left side which shows the front storing state of the seat device concerning an embodiment of the invention in detail.

Explanation of symbols

10 Seat device 24 Rear storage link (moving member)
28 First protrusion (protrusion)
46 Seat cushion (lower member)
48 Seat back (upper member)
52 Release Pin (Release Member, Passover Member, Engagement Member)

Claims (5)

An upper member provided in an upright state and supporting the tilt of the occupant;
Said upper member relative pivotably connected, supported in a state of mounting the occupant is drawn from the upper member by being locked angle between said upper member is secured between said upper member A lower member to be
A release member that is operated to unlock the upper member and the lower member; and
With operating the releasing member by being moved, a moving member to which the upper member and the lower member with the movement are erected,
A seat apparatus comprising: 2. The seat device according to claim 1, wherein the moving member is given a biasing force, and is moved by the biasing force before the release member is operated by the movement. 2. The upper member and the lower member are raised by moving the moving member by the weight of the upper member and the lower member after the moving member operates the release member. 2. The sheet apparatus according to 2. An upper member provided in an upright state and supporting the tilt of the occupant;
And the lower member of the upper member relative pivotably connected to the support in a state of mounting the occupant Rukoto drawn from the upper member,
A moving member to which the upper member and the lower member with the movement are erected,
A protrusion provided on the moving member;
Together provided in at least one of the upper member and the lower member, the moving member urging force in the side is applied, the upper member and lower member are overcome against the biasing force of the projecting portion before being erected Norikoshi a member at least one of operating speed Ru is late of the upper member and the lower member,
A seat apparatus comprising: An upper member provided in an upright state and supporting the tilt of the occupant;
And the lower member of the upper member relative pivotably connected to the support in a state of mounting the occupant Rukoto drawn from the upper member,
A moving member to which the upper member and the lower member with the movement are erected,
Provided in at least one of the upper member and the lower member, and when the upper member and the lower member are erected, the position relative to the moving member is defined by engaging the moving member, and the upper member and the lower member and Rukakarigo members at least one of the position is defined,
A seat apparatus comprising:

Images