JP2009073312A - Operation structure of vehicular seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable working operation timings to be made different from each other without arranging any looseness at a connected part with an operating member in an operating structure capable of operating two mechanisms together through operation of one operating member under a different timing. <P>SOLUTION: The operating structure can release a locked state of a reclining device 23 and a turning locking device 24 together by releasing an operating lever 1 arranged at a second seat 20. Each of the connected ends 11A, 12A of a first cable 11 and a second cable 12 connected to the operating lever 1 is set at its connecting positions against the operating lever 1 in such a way that operating motion amounts accompanied with the turning motion of the operating lever 1 are made different from each other. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an operation structure for a vehicle seat. More specifically, the present invention relates to an operation structure for a vehicle seat in which each operation operation of two mechanisms connected to the operation member can be collectively performed by releasing one operation member disposed on the vehicle seat. .

2. Description of the Related Art Conventionally, there are some vehicle seats that can be operated together by operating two operating mechanisms by operating one operating member. Here, the following Patent Document 1 discloses a technique in which an operation of releasing the locked state of the reclining device and an operation of releasing the locked state of the floor lock device can be performed together by operating an operation lever. Is disclosed. In this disclosure, each cable connected to the reclining device or the floor lock device is connected to one operation lever. Specifically, one of the cables is hooked on the operation lever by operating the operation lever to a middle position, and is pulled with a delay with respect to the other cable. Thereby, the timing at which the reclining device is released and the timing at which the floor lock device is released are shifted.
Japanese Patent No. 2943977

  However, in the prior art disclosed above, the operation dimension until one cable is hooked on the operation lever is set as play, and during this time, the two are not engaged with each other. Therefore, if vibration is input to this part and the cable is shaken, abnormal noise such as interference noise may occur, which is not preferable.

  The present invention was devised as a solution to the above-described problems, and the problem to be solved by the present invention is to operate two mechanisms collectively at different timings by operating one operation member. In the operation structure that can be operated, the operation operation timing is made to be different even without providing play in the connecting portion with the operation member.

In order to solve the above problems, the vehicle seat operating structure of the present invention takes the following means.
A first aspect of the present invention is a vehicle seat in which each operation of the two mechanisms connected to the operation member can be performed collectively by releasing one operation member disposed on the vehicle seat. This is the operation structure. The release operation of the operation member is performed with rotational movement. The first and second connection members that connect the operation member and the two mechanisms are set to be connected to the operation member so that the operation movement amounts following the rotational movement of the operation member are different from each other.

  According to the first invention, each connecting member is connected to the operation member, but the operation movement amounts following the rotational movement of the operation member are different from each other. Therefore, the operation operation timings of the two mechanisms can be made different without providing play at the connection portion between the operation member and each connection member.

  Next, according to a second aspect, in the first aspect described above, each connecting member has a cable structure that is pulled and operated following the rotational movement of the operating member. The connecting position of each connecting member with respect to the operating member is such that one connecting member moves mainly in the operating direction in which the cable extends in the rotating region of the operating member while the operating member rotates from the initial rotating position to the specific rotating position. The other connecting member is positioned at a position that passes through a rotation region with a small amount of operation movement to be pulled in a direction perpendicular to the operation direction in which the cable extends, while passing through a rotation region with a large amount of operation movement to be pulled. Is set.

  According to the second invention, when the operation member is released by setting the connection position of each connection member with respect to the operation member, one connection member is pulled by a large amount of operation movement, but the other connection member is It is towed with a small amount of movement. In this way, by setting the connecting position of each connecting member so that there is a large difference in the amount of traction operation movement between the two, it is possible to understand the difference in the operation timing of the two mechanisms during the release operation of the operating member. Can be made easier. Therefore, each release operation by the operation member that enables the two mechanisms to be individually operated can be easily performed.

  Embodiments of the best mode for carrying out the present invention will be described below with reference to the drawings.

  First, the operation structure of the vehicle seat according to the first embodiment will be described with reference to FIGS. Here, FIG. 2 is a perspective view showing a schematic configuration of the vehicle seat of the present embodiment. As shown in the figure, a second seat 20 serving as a second row seat of the vehicle is disposed on the floor F of the vehicle. Here, the second seat 20 corresponds to the vehicle seat of the present invention. Although not shown, a front seat serving as a driver seat and a passenger seat is disposed on the front row side of the second seat 20, and a third seat serving as a third row seat is disposed on the rear row side. ing. The second seat 20 has a horizontally long width that can seat two to three seaters seated in this row.

  Next, the configuration of the second sheet 20 will be described in detail. The second seat 20 has a seat body having a seat back 21 that serves as a backrest and a seat cushion 22 that serves as a seating portion. The seat back 21 is connected to the rear end of the seat cushion 22 via the reclining device 23 at the lower ends of both sides thereof. As a result, the seat back 21 is fixed to a posture position where the reclining device 23 is raised with respect to the seat cushion 22 by switching between the locked state and the released state, or the fixed state is released and the upper surface of the seat cushion 22 is released. It has come to be moved forward to the department.

  Note that the basic configuration of the reclining device 23 is a known configuration disclosed in a document such as Japanese Patent Application Laid-Open No. 2002-360368, and a detailed description thereof will be omitted. The operation of releasing the locked state of the reclining device 23 is performed by an operation of depressing the operation lever 1 provided at the shoulder opening of the seat back 21. Here, the operation lever 1 corresponds to the operation member of the present invention.

  The operation lever 1 is provided at the position of both shoulder openings of the seat back 21 and is disposed so as to protrude upward from the upper surface of the seat back 21. The operation lever 1 can be operated to release the reclining device 23 by performing a push-down operation of rotating either one of the operation levers 1 to the outside in the width direction of the seat back 21 (outer side or inner side). Yes.

  Here, the release operation structure of the operation lever 1 will be described with reference to FIG. In other words, each of the reclining devices 23 described above is connected to an operation arm 23A that can perform a switching operation between locking and releasing. Here, the operating mechanism of the operation arm 23A corresponds to one of the two mechanisms of the present invention. The operation arm 23A is pivotally connected to the reclining device 23 so as to be rotatable, and is always held at a rotation position where the reclining device 23 is locked by urging. Each operation arm 23 </ b> A is connected to the operation lever 1 at the shoulder of the seat back 21 by the first cable 11. Here, the first cable 11 corresponds to the first connecting member of the present invention. As a result, the operation arm 23A is rotated by a movement in which the operation lever 1 is released and the first cable 11 is pulled, and the lock state of the reclining device 23 is released all at once. .

  Then, the locked state of the reclining device 23 is released, so that the fixed state of the backrest angle of the seat back 21 is released. As a result, the seat back 21 can be moved forward to the upper surface of the seat cushion 22. Here, between the seat back 21 and the seat cushion 22, although not shown, a spring member that urges the seat back 21 forward is applied. As a result, the seat back 21 is tilted forward to the upper surface of the seat cushion 22 by urging by performing a release operation (push-down operation) of the operation lever 1.

  Here, referring back to FIG. 2, the seat cushion 22 is connected to the slider device 25 disposed on the floor F via a pair of left and right link arms 24B and 24C arranged in the front-rear direction. Has been. The slider device 25 has a configuration capable of adjusting and moving the seating position of the second seat 20 on the floor F in the front-rear direction. Specifically, the slider device 25 includes a rail-shaped lower rail 25B that is integrally fixed to the floor F, and a rail-shaped rail that is slidably fitted in the rail extending direction with respect to the lower rail 25B. And an upper rail 25A.

  Each of the lower rail 25B and the upper rail 25A is arranged and formed so that the rail extends in the front-rear direction of the vehicle. The lower ends of the pair of left and right link arms 24B and 24C described above are pivotally connected to the upper surface of the upper rail 25A so as to be rotatable. Here, the upper ends of the link arms 24B and 24C are pivotally connected to a frame of the seat cushion 22 (not shown) so as to be rotatable. As a result, a four-bar linkage mechanism is configured between the seat cushion 22 and the upper rail 25A so that the seating height position of the seat cushion 22 can be changed as the link arms 24B and 24C are turned up and down. .

  As shown in FIG. 6, the link arms 24 </ b> B and 24 </ b> C are rotated up and down so that the position of the seat cushion 22 is changed between a use position where the seat cushion 22 is seated and a fall position where the seat cushion 22 is dropped on the floor F. Is called. As shown in FIG. 3, the link arms 24B and 24C are turned upside down at the upper end connecting portion of the front link arm 24B where the seat cushion 22 is in the illustrated seating use position. The rotation lock device 24 is locked by the locking operation.

  Here, the above-described rotation locking device 24 connects the link arms 24B on the front side and the skeleton frame of the seat cushion 22 to each other, and the basic configuration is substantially the same as the reclining device 23 described above. ing. That is, the rotation retaining device 24 is also fixed to the posture state in which each link arm 24B, 24C is raised by switching between the locked state and the released state, or the fixed state is released and the seat cushion 22 is fixed to the floor. It can be dropped onto F.

  The operation for releasing the locked state of the rotation retaining device 24 is also performed by pushing down the operation lever 1 provided at the shoulder of the seat back 21 described above. Specifically, each rotation retaining device 24 is connected to an operation arm 24 </ b> A that can perform a lock / release switching operation. Here, the operating mechanism of the operation arm 24A corresponds to the other of the two mechanisms of the present invention. The operation arm 24A is pivotally connected to the rotation fixing device 24 so as to be rotatable. The operation arm 24A is normally held at a rotation position where the rotation fixing device 24 is locked by urging.

  Each operation arm 24 </ b> A is connected to the operation lever 1 at the shoulder of the seat back 21 by the second cable 12. Here, the second cable 12 corresponds to the second connecting member of the present invention. As a result, the operation arm 24A is rotated by a movement in which the operation lever 1 is released and the second cable 12 is pulled, and the lock state of the rotation retaining device 24 is released all at once. Yes.

  That is, the operation lever 1 can release the locked state of each reclining device 23 and each rotation retaining device 24 by the release operation. Specifically, the operating lever 1 first releases the locked state of each reclining device 23 by performing the releasing operation. And the operation lever 1 cancels | releases the locked state of each rotation securing apparatus 24 by performing cancellation | release operation to the position deeper than the rotation position which canceled the locked state of the reclining apparatus 23. FIG.

  Therefore, as shown in FIG. 6, when the operation lever 1 is released in a state where the second seat 20 is seated and usable, first, the locked state of the reclining device 23 is released and the seat is released. The back 21 is brought forward. If the release operation of the operation lever 1 is stopped in this state, the second seat 20 can be held in the folded posture. However, from this state, the locked state of the rotation locking device 24 is released by releasing the operation lever 1 to a deep position again. Thereby, the second seat 20 in the folded posture state can be dropped onto the floor F.

  Note that the operating lever 1 gives a resistance force to an operating region that is operated deeply from the operating position (the first rotational position P1 shown in FIG. 1) in which the reclining device 23 is unlocked so that the operational feeling becomes heavy. The operation structure is made. Thereby, it becomes easy to distinguish step by step operation which cancels the locked state of the reclining device 23, and operation which cancels the locked state of the rotation locking device 24. Hereinafter, the operation structure of the operation lever 1 will be described in detail. As shown in FIG. 2, the operation structure of each operation lever 1 is a symmetrical structure on the left and right, but the substantial operation structure is the same. Therefore, hereinafter, the operation structure of the operation lever 1 disposed on the right side in the drawing will be described, and the description of the operation structure of the operation lever 1 disposed on the left side will be omitted.

  As shown in FIG. 1, the operation lever 1 is provided on a substrate 21 </ b> B coupled to a joint portion between an upper frame 21 </ b> U that forms a skeleton of the seat back 21 and a side frame 21 </ b> S. Specifically, the operation lever 1 has a plate-like bracket 2 integrally coupled to an end portion on the base side. The bracket 2 is pivotally connected to the substrate 21B by a support shaft 3 so as to be rotatable. As shown in FIG. 4, between the bracket 2 and the substrate 21B, a winding spring 4 for rotating and biasing the operation lever 1 is hooked. The winding spring 4 is wound around the support shaft 3, and one end thereof is engaged with the substrate 21 </ b> B and the other end is engaged with the bracket 2. As a result, as shown in FIG. 1, the operation lever 1 is normally urged to rotate counterclockwise in the drawing and is held at the initial position P0 indicated by the solid line.

  The bracket 2 has a first connecting end portion 11A that is the upper end portion of the first cable 11 and a second connecting end portion 12A that is the upper end portion of the second cable 12 by pins 11P and 12P, respectively. It is pivotally connected so that it can rotate. Here, the first connecting end portion 11A is arranged at a position slightly above the left side in the drawing with respect to the support shaft 3 that is the rotation center of the operation lever 1 when the operation lever 1 is in the initial position P0. Has been. The second connecting end 12A is arranged at a position slightly on the left side of the lower side of the figure with respect to the support shaft 3 in the same state. Further, as shown in FIG. 5, the distance from the support shaft 3 that is the rotation radius of the first connection end portion 11A is the distance from the support shaft 3 that is the rotation radius of the second connection end portion 12A. Is set larger than.

  Therefore, when the operation lever 1 is rotated (released) in the clockwise direction in the figure from the initial position P0 described above, the first cable 11 and the second cable 12 are respectively pulled as follows. That is, in the first cable 11, the operation movement amount that the first connecting end portion 11 </ b> A is pulled in the operation direction in which the cable extends mainly in the rotation region of the operation lever 1 when the operation lever 1 is rotated. Through a large rotation area. On the other hand, when the operation lever 1 is rotated, the second cable 12 is pulled in a direction in which the second connecting end 12A is mainly perpendicular to the operation direction in which the cable extends in the rotation region of the operation lever 1. It passes through the rotation area where the operation movement amount is small.

  The first cable 11 is pulled to an operation amount that can release the locked state of the reclining device 23 described above by rotating the operation lever 1 to the illustrated first rotation position P1. Is done. Here, the first rotation position P1 corresponds to a specific rotation position of the present invention. At this time, until the operation lever 1 is rotationally moved to the first rotational position P1, the second cable 12 is not pulled until the operation amount that reaches the unlocking state of the above-described rotation locking device 24. Therefore, only the reclining device 23 can be released by rotating the operation lever 1 to the first rotation position P1.

  Then, when the operation lever 1 is further rotated in the clockwise direction in the figure from this state, the second cable 12 is rotated with a large amount of operation movement in which the second connecting end 12A is mainly pulled in the operation direction in which the cable extends. Go through the area. Then, the second cable 12 is pulled to an operation amount that can release the lock state of the rotation retaining device 24 by rotating the operation lever 1 to the second rotation position P2. At this time, the first cable 11 has the first connecting end portion 11A on the upper side in the figure with respect to the support shaft 3 until the operating lever 1 is rotationally moved from the first rotational position P1 to the second rotational position P2. Go through the rotation area.

  In this rotation region, the first connecting end portion 11A is mainly pulled in a direction perpendicular to the operation direction in which the cable extends. Therefore, it is possible to prevent the first cable 11 in a state in which the reclining device 23 is released from being pulled by an even larger amount of operation movement and receiving an abnormal load. Note that the turning operation of the operation lever 1 can be performed from the second rotation position P2 where the lock state of the rotation retaining device 24 is released to the third rotation position P3. And the operation lever 1 is returned to the initial position P0 by urging | biasing by stopping the rotation operation.

  Thus, according to the vehicle seat operation structure of the present embodiment, when the operation lever 1 is released by setting the connection position of the first cable 11 and the second cable 12 to the operation lever 1, the first cable 11 Is pulled with a large amount of operation movement, whereas the second cable 12 is pulled with a small amount of operation movement. As described above, when the operation of releasing the operation lever 1 is performed by setting the connection position of the first cable 11 and the second cable 12 so that a large difference is generated in the amount of movement of the traction operation between the two, The difference in timing can be easily understood.

  Therefore, it becomes easy to individually perform the release operation of the reclining device 23 and the release operation of the rotation retaining device 24 by the operation lever 1. Since the operation operation timing of the reclining device 23 and the rotation retaining device 24 can be made different without providing play at each connecting portion between the operation lever 1 and the first cable 11 and the second cable 12, the free end The ends of the first cable 11 and the second cable 12 that are to be shaken can be prevented from generating abnormal noise such as interference sound with other arrangement parts such as the bracket 2. .

  Further, since the release operation direction of the operation lever 1 is set to a rotation direction that pushes the seat back 21 outward in the width direction (outer side or inner side), the first cable 11 and the second cable 12 are connected to the operation lever 1. Even if the connecting end portions 11A and 12A are set at positions away from the rotation center (support shaft 3), the first cable 11 and the second cable 12 are pulled in the in-plane direction of the backrest surface of the seat back 21. Can be. Therefore, such an operation structure can be arranged in the seat back 21 in a compact manner.

  Then, by setting the release operation direction of the operation lever 1 as described above, the third seat seater sitting on the rear side of the second seat 20 seems to drop the operation lever 1 in an operation image in which the seat back 21 is pushed down. By operating the reclining device 23, the locked state of the reclining device 23 can be released and the seat back 21 can be operated forward. Then, after the seat back 21 has been moved forward, this time, with the operation image of dropping the entire second seat 20 forward, the operation lever is operated to pull 1 forward, thereby releasing the lock device 24 from the locked state. The second seat 20 can be dropped onto the floor F and operated.

Although the embodiment of the present invention has been described with respect to one example, the present invention can be implemented in various forms in addition to the above-described example.
For example, although the configuration in which the operation member (operation lever) is disposed at both shoulders of the seat back is illustrated, it may be disposed only on one side.
Moreover, the connection position with respect to the operation member of the 1st and 2nd connection member (1st and 2nd cable) is not limited to the position shown in the said Example. That is, while the operating member is rotationally moved from the initial position to the specific rotational position, a rotation region having a large operation movement amount in which the first cable is pulled in the operation direction in which the cable extends mainly in the rotation region of the operating member. The second cable may be set to a position passing through a rotation region with a small amount of operation movement in which the second cable is mainly pulled in a direction perpendicular to the operation direction in which the cable extends, and the position is not particularly limited. .

  Moreover, the operation structure of the first connecting member and the second connecting member may be replaced with each other. Further, the two mechanisms that are operated and operated via these connecting members are not limited to the operating mechanisms of the reclining device and the rotation retaining device shown in the above-described embodiments, but are variously arranged in relation to the vehicle seat. The operating mechanism can be applied as an operation target.

FIG. 3 is a configuration diagram illustrating an operation structure of an operation lever according to the first embodiment. It is a perspective view showing the sheet structure of the second sheet. It is a side view showing typically the internal structure of a second sheet. It is the IV-IV sectional view taken on the line of FIG. It is a schematic diagram showing the operation structure of the operation lever. It is a side view showing the state where the second sheet was folded and sunk on the floor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation lever 2 Bracket 3 Spindle 4 Coil spring 11 1st cable (1st connection member)
11A 1st connection end part 11P pin 12 2nd cable (2nd connection member)
12A Second connecting end 12P Pin 20 Second seat (vehicle seat)
21 Seat back 21U Upper frame 21S Side frame 21B Substrate 22 Seat cushion 23 Reclining device 23A Operation arm (one of two mechanisms)
24 Rotation locking device 24A Operation arm (the other of the two mechanisms)
24B, 24C Link arm 25 Slider device 25A Upper rail 25B Lower rail F Floor P0 Initial position P1 First rotation position (specific rotation position)
P2 Second rotational position P3 Third rotational position

Claims (2)

An operation structure for a vehicle seat capable of collectively performing each operation of two mechanisms connected to the operation member by releasing one operation member disposed on the vehicle seat,
The release operation of the operating member is performed with rotational movement,
The first and second connecting members that connect the operating member and the two mechanisms are set to be connected to the operating member so that the operation movement amounts following the rotational movement of the operating member are different from each other. An operation structure of a vehicle seat, characterized by comprising: The vehicle seat operating structure according to claim 1,
Each of the connecting members has a cable structure that is pulled to follow the rotational movement of the operating member,
The connecting position of each connecting member with respect to the operating member is such that one connecting member is mainly connected to the cable in the rotating region of the operating member while the operating member rotates from the initial rotating position to a specific rotating position. While passing through a rotation region with a large operation movement amount that is pulled in the extending operation direction, the other connecting member is a rotation region with a small operation movement amount that is pulled mainly in a direction perpendicular to the operation direction in which the cable extends. An operation structure for a vehicle seat, wherein the vehicle seat operation position is set at a position passing through the vehicle.

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