JP7313601B2 - Vehicle seat device - Google Patents

Description

The present invention relates to a vehicle seat device comprising a rotating mechanism for rotating a seat body between a seating position facing forward of the vehicle and an entry/exiting position facing a door opening, and a longitudinal slide mechanism for moving the seat body in the longitudinal direction of the vehicle.

A vehicle seat device related to this is described in Patent Document 1. As shown in FIG. 8, the vehicle seat device 100 of Patent Document 1 includes a seat body 102, a rotation mechanism 103 that rotates the seat body 102 between a seating position facing forward of the vehicle and an entry/exit position facing the door opening side, and a front-rear sliding mechanism 105 that moves the seat body 102 back and forth. The forward/backward slide mechanism 105 has a rotation zone R and a rotation inhibition zone Z. As shown in FIG. When the seat body 102 is sliding in the rotation prohibition zone Z, the rotation of the seat body 102 is prohibited.

JP 2006-312363 A

In the vehicle seat device 100, when the seat body 102 is in the rotation zone R, the seat body 102 can be rotated and slid back and forth. Therefore, if the seat occupant erroneously releases the slide lock of the longitudinal slide mechanism 105 while the seat body 102 is rotating, the seat body 102 may slide back and forth against the will of the seat occupant.

The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to eliminate the problem of the seat body sliding back and forth due to an erroneous operation during rotation of the seat body.

The above problems are solved by each invention.第１の発明は、シート本体を車両前向きの着座位置とドア開口部側を向く乗降位置間で回転可能に支持する回転機構と、前記回転機構を支持して車両前後方向にスライド可能な前後スライドベースを備える前後スライド機構と、を有する車両用シート装置であって、前記前後スライド機構の前後スライドベースのスライドロック状態を解除するロック解除部材と、前記前後スライド機構と前記回転機構との同時動作を禁止するインターロック機構とを備えており、前記インターロック機構は、前後スライドベースに回動可能な状態で連結されたストッパとストッパ動作部材とを備えており、前記ストッパは、前記ロック解除部材の動作軌跡内でそのロック解除部材の動作を禁止するロック位置と前記動作軌跡外の待機位置間で回動が可能であり、前記ストッパ動作部材は、前記シート本体が着座位置から乗降位置の方向に回転を開始することで回動を開始し、そのストッパ動作部材の回動により前記ストッパが前記ロック位置まで回動する。

According to the present invention, the interlock mechanism prevents simultaneous operation of the forward/backward slide mechanism and the rotation mechanism. Therefore, even if an attempt is made to release the slide lock of the longitudinal slide mechanism while the seat body is rotating, the unlocking operation is prohibited. Therefore, there is no problem that the seat body slides back and forth due to an erroneous operation while the seat body is rotating.
That is, the unlocking operation for releasing the slide lock of the forward/backward slide mechanism is prohibited while the seat body is rotating.

Second inventionAccording to the above, the interlock mechanism includes a pressing member that rotates together with the seat body between the seating position and the boarding/alighting position, and a pressing surface that is formed on the stopper operating member and is pressed by the pressing member. When the seat body returns to the seating position, the pressing member presses the pressed surface of the stopper operating member.by doing,The stopper operating memberIt rotates to one side, and by rotation of the stopper operation memberThe stopper reaches the standby positionrotate,When the seat body moves away from the seating position, the pressing member moves away from the pressed surface of the stopper action member.ByThe stopper operating memberBy rotating the stopper operating membersaid stopperbutup to the lock positionRotate.

According to the present invention, the seat body does not slide back and forth due to an erroneous operation during rotation of the seat body.

1 is a perspective view of a door opening of a vehicle provided with the vehicle seat device according to Embodiment 1 of the present invention, viewed from the front right; FIG. FIG. 3 is a side view showing a front-rear sliding mechanism, a rotating mechanism, and the like of the vehicle seat device; It is the perspective view which looked at the said front-back slide mechanism from the left front. FIG. 4 is a vertical cross-sectional view showing a slide lock mechanism of the forward/backward slide mechanism; FIG. 3 is a front perspective view of the interlock mechanism of the vehicle seat device; It is a side view showing operation|movement of the said interlock mechanism. It is a side view showing operation|movement of the said interlock mechanism. 1 is a perspective view showing a conventional vehicle seat device; FIG.

[Embodiment 1]
A vehicle seat device according to a first embodiment of the present invention will be described below with reference to FIGS. 1 to 7. FIG. A vehicle seat device according to the present embodiment is a seat device installed on the right side of a vehicle interior, as shown in FIG. Here, front, rear, left, right, and up and down shown in the drawing correspond to front, rear, left, right, and up and down of the vehicle provided with the vehicle seat device 10 .

<Overview of Vehicle Seat Device 10>
As shown in FIG. 2, the vehicle seat device 10 includes a seat body 20 on which a person is seated, a longitudinal slide mechanism 30 for sliding the seat body 20 in the longitudinal direction of the vehicle, and a rotation mechanism 40 for rotating the seat body 20 on the longitudinal slide mechanism 30. The vehicle seat device 10 also includes an interlock mechanism 80 that prohibits simultaneous operation of the longitudinal slide mechanism 30 and the rotation mechanism 40, as shown in FIG.

<Regarding the back-and-forth slide mechanism 30>
As shown in FIGS. 2 and 3, the longitudinal slide mechanism 30 includes a pair of left and right lower rails 32 that are fixed on the vehicle floor F and extend in the longitudinal direction of the vehicle, and a pair of left and right upper rails 33 that slide longitudinally along the pair of left and right lower rails 32. A pair of left and right upper rails 33 are fixed to the lower surface of the front-rear slide base 35 (see FIG. 2). 3, the left upper rail 33 and the front-rear slide base 35 are omitted. Here, the upper rail 33 is configured so as to be slide-lockable with respect to the lower rail 32 in multiple stages by the action of a multi-stage lock mechanism 50 (see FIGS. 3 and 4).

<Regarding the rotation mechanism 40>
The rotation mechanism 40 is a mechanism for rotating the seat body 20 between a seating position facing forward of the vehicle and a boarding/alighting position facing the door opening D (see FIG. 1). As shown in FIG. 2, the rotation mechanism 40 includes an inner ring 41 fixed on the front-rear slide base 35, an outer ring 43 rotatably supported with respect to the inner ring 41, and a rotary table 45 fixed on the outer ring 43. The seat body 20 is installed on the rotary table 45 of the rotary mechanism 40 . With the above configuration, the seat body 20 can be manually slid to a predetermined position in the longitudinal direction of the vehicle, and further the seat body 20 can be rotated between the seating position and the boarding/alighting position. The rotary table 45 is configured to be rotationally locked at least between the seating position and the boarding/alighting position by a rotation locking mechanism (not shown).

<Regarding the multistage lock mechanism 50>
As shown in FIGS. 2 to 4, the multi-stage locking mechanism 50 of the longitudinal slide mechanism 30 is composed of a lock tooth 52 formed on the lower rail 32 and a lock spring 53 provided in the upper rail 33 and configured to engage with the tooth groove of the lock tooth 52. Here, as shown in FIG. 4, the lower rail 32 includes left and right guide wall portions 32w that sandwich the upper rail 33 from both sides in the width direction and guide it in the sliding direction. At the lower end positions of the left and right guide wall portions 32w, a large number of lock teeth 52 are formed at equal pitches in the sliding direction (see FIG. 2).

As shown in FIG. 3, the lock spring 53 of the multi-stage lock mechanism 50 is a rod-shaped spring that is bilaterally symmetrical and is accommodated in the upper rail 33 as described above. The lock spring 53 has two pairs of square engagement portions 53k at midway positions, and the square engagement portions 53k protrude from the side openings 33h (see FIG. 4) of the upper rail 33 in the left-right direction. The lock spring 53 is held within the upper rail 33 in such a state that the square engagement portion 53k of the lock spring 53 is biased to be held above the side opening 33h of the upper rail 33. As shown in FIG. When the multi-stage locking mechanism 50 is in the locking operation state, as shown in FIG. 4, the square engagement portions 53k of the left and right lock springs 53 in the upper rail 33 are engaged with the lock teeth 52 of the left and right guide wall portions 32w of the lower rail 32 from below by the biasing force. When the multistage lock mechanism 50 performs a locking operation, the seat body 20 is prohibited from sliding back and forth.

<Regarding the unlocking mechanism 60>
The lock release mechanism 60 is a mechanism that releases the lock operation of the multistage lock mechanism 50 . As shown in FIGS. 2 and 3, the unlocking mechanism 60 includes, for example, a loop-handle-shaped operating lever 61 that can be pulled upward by a seated person sitting on the seat body 20, and left and right releasing members 63 that transmit the operating force of the operating lever 61 to the left and right lock springs 53 of the multistage lock mechanism 50. A clutch mechanism 70 (see FIG. 3) is provided between the left end of the operation lever 61 of the lock release mechanism 60 and the release member 63 on the left side of the vehicle.

<Overview of Clutch Mechanism 70>
The clutch mechanism 70 is a mechanism that transmits the operating force of the operating lever 61 to the release member 63 or cancels the transmission of the operating force. The clutch mechanism 70 includes a first connecting plate 71 fixed to the operating lever 61 and a second connecting plate 72 fixed to the release member 63 . The first connecting plate 71 and the second connecting plate 72 are configured to be connected to each other in the vertical rotation direction according to the front-rear sliding position of the seat body 20, or to be disconnected from each other.

<Releasing member 63>
As shown in FIGS. 3 and 4, the unlocking member 63 of the lock release mechanism 60 is composed of a vertical movement arm 65 that is housed in the upper rail 33 and arranged on the lock spring 53, and a connection arm 64 that is fixed to the base end (front end) of the vertical movement arm 65 and protrudes forward from the upper rail 33. As shown in FIG. 3, the right end of the operating lever 61 is connected to the connection arm 64 of the release member 63 on the right side. Also, the left end of the operating lever 61 is connected to the connection arm 64 of the left releasing member 63 via the clutch mechanism 70 . As shown in FIG. 3, the vertical movement arm 65 of the release member 63 has a fulcrum portion 65c protruding upward at the central portion of the vertical movement arm 65, and the fulcrum portion 65c abuts on the ceiling surface (not shown) of the upper rail 33. Further, a pressing portion 65p is provided at a position corresponding to the rectangular engaging portion 53k of the lock spring 53 at the tip (rear end) of the vertical movement arm 65. As shown in FIG.

With the above configuration, when the operating lever 61 of the unlocking mechanism 60 is pulled upward, the operating force (upward turning force) of the operating lever 61 is directly applied to the connection arm 64 of the right releasing member 63 . Further, the operating force (upward turning force) of the operating lever 61 is applied to the connecting arm 64 of the left releasing member 63 via the first connecting plate 71 and the second connecting plate 72 of the clutch mechanism 70 . As a result, the base ends of the vertical movement arms 65 of the left and right release members 63 are lifted by a predetermined angle around the fulcrum 65c, and the pressing parts 65p at the tips of the vertical movement arms 65 are pushed down around the fulcrum 65c. As a result, the pressing portion 65p of the vertical movement arm 65 presses the square engagement portion 53k of the lock spring 53 downward against the urging force, and the square engagement portion 53k of the lock spring 53 disengages from the lock tooth 52 of the lower rail 32 as shown by the dotted line in FIG. Thereby, the locking operation of the multistage locking mechanism 50 is released.

<About the interlock mechanism 80>
The interlock mechanism 80 is a mechanism that prohibits simultaneous operation of the forward/backward slide mechanism 30 and the rotation mechanism 40 . As shown in FIG. 5 , the interlock mechanism 80 includes a pressing pin 82 that rotates together with the seat body 20 and the rotary table 45 , a stopper 84 provided on the front/rear slide base 35 , and a stopper operating lever 86 . The pressing pin 82 is a cylindrical pin and is provided horizontally on the outer surface of the roller bracket 45b provided at the left front corner of the rotary table 45. As shown in FIG. Here, the roller bracket 45b is a bracket that rotatably supports the roller 45r, and is formed so that the roller 45r can roll along the guide groove 35m provided in the front-rear slide base 35 when the rotary table 45 rotates. That is, when the rotary table 45 rotates, the pressing pin 82 moves along the guide groove 35m of the front-rear slide base 35 together with the roller bracket 45b of the rotary table 45. As shown in FIG.

The stopper 84 of the interlock mechanism 80 is a member that prohibits or permits upward movement of the first connecting plate 71 and the second connecting plate 72 of the clutch mechanism 70 . As shown in FIG. 5, the stopper 84 is connected to the right end of the support bracket 35x installed at the left front corner of the front-rear slide base 35 by a connecting shaft 84p for stopper so as to be vertically rotatable. As shown in FIGS. 6 and 7, the stopper connecting shaft 84p is provided horizontally in the central portion of the stopper 84, and a coil spring 85 is mounted around the stopper connecting shaft 84p. 6 and 7, the support bracket 35x of the front-rear slide base 35 and the coil spring 85 are omitted. The coil spring 85 is urged in a direction to rotate the stopper 84 to the right, and one end of the coil spring 85 is hooked on the spring receiving portion 84b at the upper end position of the stopper 84 as shown in FIG. Also, the other end of the coil spring 85 is hung on the support bracket 35x.

As shown in FIGS. 6 and 7, a stopper main body 84s for stopping the upward rotation of the first connecting plate 71 and the second connecting plate 72 of the clutch mechanism 70 is formed in the lower part of the stopper 84 in a substantially trapezoidal shape. As shown in FIG. 7, the stopper main body portion 84s of the stopper 84 is arranged above the first connecting plate 71 and the second connecting plate 72, i.e., within the motion locus of the first connecting plate 71 and the second connecting plate 72, thereby prohibiting upward rotation of the first connecting plate 71 and the second connecting plate 72. In addition, as shown in FIG. 6, the stopper body portion 84s of the stopper 84 is arranged outside the locus of movement of the first connecting plate 71 and the second connecting plate 72, thereby allowing the first connecting plate 71 and the second connecting plate 72 to rotate upward. That is, the position where the stopper 84 prohibits upward rotation of the first connecting plate 71 and the second connecting plate 72 is the lock position of the stopper 84 (see FIG. 7), and the position where the stopper 84 permits upward rotation is the waiting position of the stopper 84 (see FIG. 6). Further, the left end of the stopper 84 is formed with a hook portion 84k that is hooked onto the receiving portion 86y of the stopper operating lever 86 from above.

As shown in FIGS. 6 and 7, the stopper operating lever 86 of the interlock mechanism 80 is a lever that rotates the stopper 84 between the lock position and the standby position in response to the operation of the pressing pin 82 on the rotary table 45 side. As shown in FIG. 5, the stopper operating lever 86 is connected to the central right portion of the support bracket 35x installed on the front-rear slide base 35 by a lever connecting shaft 86p so as to be vertically rotatable. The connecting shaft 86p for lever is provided in the central right part of the stopper operation lever 86 in a horizontal state. As shown in FIGS. 6 and 7, the right end portion of the stopper operating lever 86 is provided with a receiving portion 86y on which the hook portion 84k of the stopper 84 is hooked from above.

Further, the left side of the stopper operating lever 86 with respect to the lever connecting shaft 86p is folded back into a planar U-shape as shown in FIG. 5 and the like. That is, the left side of the lever connecting shaft 86p in the stopper operating lever 86 is formed into a planar U shape by the front side plate portion 86f, the bent plate portion 86w, and the rear side plate portion 86b. The upper surface of the rear side plate portion 86b of the stopper operating lever 86 serves as a pressed surface 86e that is pressed by the pressing pin 82 that rotates together with the rotary table 45. As shown in FIG. Here, the position of the stopper operating lever 86 is such that the pressing pin 82 can press the pressed surface 86e of the stopper operating lever 86 as shown in FIG.

That is, when the seat body 20 is in the seated position and the pressing pin 82 presses the pressed surface 86e of the stopper operating lever 86 as shown in FIG. 6, the receiving portion 86y of the stopper operating lever 86 is held at the upper limit position. As a result, the hook portion 84k of the stopper 84 is pushed up by the receiving portion 86y of the stopper operating lever 86, and the stopper 84 is held at the left rotation limit position against the spring force of the coil spring 85. As a result, the stopper main body portion 84s of the stopper 84 is displaced leftward from right above the first connecting plate 71 and the second connecting plate 72, and is arranged outside the movement locus of the first connecting plate 71 and the second connecting plate 72 (standby position).

Further, when the seat body 20 rotates to the right from the seating position toward the boarding/alighting position, the pressing pin 82 moves away from the pressing surface 86e of the stopper operating lever 86, as shown in FIG. As a result, the push-up force of the receiving portion 86y of the stopper operating lever 86 is released, the stopper 84 is rotated clockwise by the spring force of the coil spring 85, and the hook portion 84k of the stopper 84 pushes the receiving portion 86y of the stopper operating lever 86 down to the lower limit position. By rotating the stopper 84 to the right, the stopper main body portion 84s of the stopper 84 is held right above the first connecting plate 71 and the second connecting plate 72 . That is, the stopper main body portion 84s of the stopper 84 is arranged within the locus of movement of the first connecting plate 71 and the second connecting plate 72, and the upward rotation of the first connecting plate 71 and the second connecting plate 72 is prohibited.

<Regarding the operation of the vehicle seat device 10>
When the seat body 20 of the vehicle seat device 10 is in the seated position facing forward of the vehicle, the rotation lock device is locked and the seat body 20 is held so as not to rotate. In this state, the pressing pin 82 of the interlock mechanism 80 presses the pressed surface 86e of the stopper operating lever 86, as shown in FIG. Therefore, the receiving portion 86y of the stopper operating lever 86 pushes up the hook portion 84k of the stopper 84 as shown in FIG. Therefore, the upward rotation of the first connecting plate 71 and the second connecting plate 72 of the clutch mechanism 70 is not prevented by the stopper 84 of the interlock mechanism 80 .

Therefore, when the seat occupant pulls upward the operating lever 61 of the unlocking mechanism 60, the operating force (upward turning force) of the operating lever 61 is applied to the right releasing member 63 and the left releasing member 63 via the clutch mechanism 70 (the first connecting plate 71 and the second connecting plate 72), thereby releasing the locking operation of the multistage lock mechanism 50. As a result, the seat body 20 can be slid forward and backward.

When rotating the seat body 20 to the right from the seating position to the boarding/alighting position, the lock operation of the rotation lock device is released while the multistage lock mechanism 50 is locked. In this state, by applying force to the seat body 20 in the clockwise direction, the seat body 20 can be rotated clockwise from the seating position to the boarding/alighting position. At this time, when the seat body 20 starts rotating to the right from the seated position, the pressing pin 82 of the interlock mechanism 80 moves away from the pressed surface 86e of the stopper operating lever 86, as shown in FIG. As a result, the push-up force of the receiving portion 86y of the stopper operating lever 86 is released, and the stopper 84 is rotated clockwise by the spring force of the coil spring 85 and held at the locked position. That is, the upward rotation of the first connecting plate 71 and the second connecting plate 72 of the clutch mechanism 70 is prohibited by the stopper 84 . As a result, even if the operation lever 61 of the lock release mechanism 60 is pulled upward by an erroneous operation during the rotation of the seat body 20, the upward rotation of the clutch mechanism 70 (the first connecting plate 71 and the second connecting plate 72) is prevented, and the locking operation of the multistage lock mechanism 50 is not released. Therefore, the seat body 20 does not slide back and forth due to an erroneous operation while the seat body 20 is rotating.

Further, when the seat body 20 is rotated counterclockwise from the boarding/alighting position to the seating position, the pressing pin 82 of the interlock mechanism 80 presses the pressing surface 86e of the stopper operating lever 86 near the seating position as shown in FIG. As a result, the stopper operating lever 86 rotates rightward, the receiving portion 86y of the stopper operating lever 86 pushes up the hook portion 84k of the stopper 84, the stopper 84 rotates counterclockwise against the spring force of the coil spring 85, and the stopper body portion 84s is held at the standby position. Then, in a state in which the seat body 20 is returned to the seating position, the rotation lock device performs a locking operation.

<Correspondence between terms used in the present embodiment and terms in the present invention>
The operating lever 61, the clutch mechanism 70, and the unlocking member 63 of the unlocking mechanism 60 in this embodiment correspond to the unlocking member of the present invention. Also, the stopper operating lever 86 of the interlock mechanism 80 corresponds to the stopper operating member of the present invention. Furthermore, the pressing pin 82 corresponds to the pressing member of the present invention.

<Advantages of the vehicle seat device 10 according to the present embodiment>
According to the vehicle seat device 10 according to the present embodiment, the interlock mechanism 80 functions to prohibit the longitudinal slide mechanism 30 and the rotation mechanism 40 from operating simultaneously. Therefore, even if an attempt is made to release the slide lock of the longitudinal slide mechanism 30 while the seat body 20 is rotating, the unlocking operation is prohibited. Therefore, the unlocking operation for releasing the slide lock of the longitudinal slide mechanism 30 is prohibited while the seat body 20 is rotating.

<Change example>
It should be noted that the present invention is not limited to the above embodiments, and modifications can be made without departing from the gist of the present invention. For example, in this embodiment, the stopper 84 of the interlock mechanism 80 prohibits or permits upward rotation of the first connecting plate 71 and the second connecting plate 72 of the clutch mechanism 70 in the unlocking mechanism 60 . However, in the case of the lock release mechanism 60 that does not have the clutch mechanism 70, it is possible to directly prohibit or allow the upward rotation of the operating lever 61 or the release member 63. FIG. Further, in the present embodiment, the vehicle seat device 10 rotatable in the direction of the door opening D provided on the right side of the vehicle is illustrated, but the present invention can also be applied to the vehicle seat device 10 rotatable in the direction of the door opening D provided on the left side.

REFERENCE SIGNS LIST 10: vehicle seat device 20: seat body 30: front-rear slide mechanism 40: rotation mechanism 60: unlocking mechanism (unlocking member)
61 Operation lever (lock release member)
63 Release member (lock release member)
70 Clutch mechanism (unlocking member)
71... First connection plate (lock release member)
72 . . . second connecting plate (lock release member)
80: interlock mechanism 82: pressing pin (pressing member)
84 Stopper 86 Stopper operating lever (stopper operating member)
86e...Pressed surface

Claims (2)

a rotating mechanism that rotatably supports the seat body between a seating position facing forward of the vehicle and an entry/exiting position facing the door opening ;
A vehicle seat device having
an unlocking member for releasing the slide lock state of the front-rear slide base of the front-rear slide mechanism; and an interlock mechanism for prohibiting simultaneous operation of the front-rear slide mechanism and the rotation mechanism ,
The interlock mechanism includes a stopper rotatably connected to the front-rear slide base and a stopper operation member,
the stopper is rotatable between a lock position that prohibits the operation of the unlocking member within the locus of operation of the unlocking member and a standby position outside the locus of operation;
A vehicle seat device in which the stopper operation member starts rotating when the seat body starts rotating from the seating position toward the getting on/off position, and the stopper rotates to the locking position by the rotation of the stopper operation member. A vehicle seat device according to claim 1,
The interlock mechanism includes a pressing member that rotates between the seating position and the boarding/alighting position together with the seat body, and a pressing surface that is formed on the stopper operation member and pressed by the pressing member,
When the seat body returns to the seating position, the pressing member presses the surface to be pressed of the stopper operating member, whereby the stopper operating member rotates in one direction, and the rotation of the stopper operating member rotates the stopper to the standby position,
A vehicle seat device in which, when the seat body moves away from the seating position, the pressing member moves away from the surface to be pressed of the stopper operating member, whereby the stopper operating member rotates to the other side, and the stopper rotates to the locking position due to the rotation of the stopper operating member.

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