JPH04115435U - seat reclining device - Google Patents

Abstract

(57) [Summary] [Purpose] To maximize the effective internal width of the sheet. [Structure] Of the flange parts 21 of the base plates 20A, 20B, the flange parts 21b of the parts facing the upper rails 70A, 70B are bent outward, and the upper rails 70A, 7
Since the 0B is attached, there is no need to provide a rib portion projecting inward as in the conventional case, and the effective inner width of the seat can be maximized.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a seat reclining device, especially equipped with a latch-type locking mechanism. The present invention relates to a seat reclining device for a vehicle.

0002

[Conventional technology]

This type of seat recliner is a base plate attached to the side of the seat. At the same time as attaching the arm to the base plate and the arm, there is a , a lower tooth that can be connected to and detached from this upper tooth, and a lower tooth that can be attached to and detached from this upper tooth. A latch-type locking mechanism consisting of an engaging actuating member is provided, and it is pivoted to the base plate. The actuating member is actuated by the operation of the operating lever that is - It is possible to lock and unlock the teeth.

0003

[Problem that the idea aims to solve]

In the above seat reclining device, the effective inner width of the seat is maximized. The locking mechanism is placed inside the base plate (seat cushion side) to things are being adopted. Also, inside this base plate is a seat slide The upper rail of the device is installed.

0004 However, in such conventional seat reclining devices, the base plate It is necessary to provide a rim part to attach the upper rail to the seat. For this reason, The base plate had to be moved outwards, increasing the overall width of the seat and changing the layout. The effective inner width of the seat is narrowed because it is difficult to install it in the specified mounting position due to the The current situation was that it had no choice but to do so.

[0005] This invention was made to solve the problems of the above-mentioned conventional technology. The key to this is the seat recline, which maximizes the effective internal width of the seat. The purpose of this invention is to provide a cleaning device.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, this invention is attached to the side of the seat and has a flange around the periphery. A locking mechanism is provided inside the base plate in which the groove is formed, and the base plate is provided with a lock mechanism. Seat recrack with the upper rail of the seat slide device attached to the inside of the plate The inning device includes the upper part of the flange part of the base plate. The feature is that the flange part of the part facing the rail is bent outward. It is said that

[0007]

[Effect]

According to this invention, the flange of the base plate bent outward can be attached to the base plate. Since the par rail is installed, the ribs that protrude inward like before There is no need to provide a section, and the effective inner width of the sheet can be maximized.

[0008]

【Example】

This invention will be explained below based on embodiments shown in the drawings.

[0009] Figure 1 is a front explanatory view showing the outer locking mechanism of the seat reclining device; Figure 2 is an explanatory side view of the II-II arrow in Figure 1, partially shown in cross section, and Figure 3 is a seat recliner. A front explanatory view showing the inner side locking mechanism of the locking device, FIG. 4 is a partially cross-sectional view Fig. 5 is an explanatory diagram of the operation of the locking mechanism during locking, Figure 6 is an explanatory diagram of the operation of the locking mechanism when unlocking, and Figure 7 is an illustration of the outer side seal. An exploded perspective view of the recliner, Figure 8 shows the inner seat recliner. FIG.

0010 The figure shows an example of a seat reclining device equipped with a latch-type locking mechanism. Therefore, it is attached to the outer and inner sides of the seat, and a flange portion 21 is formed on the periphery. Locking mechanisms 10A and 10B are provided inside the base plates 20A and 20B that have been formed. At the same time, the seat slide device is installed inside each base plate 20A, 20B. Par rails 70A and 70B are installed.

[0011] This invention particularly applies to the flange portions 21 of each base plate 20A, 20B. Of these, remove the flange portion 21b that faces the upper rails 70A and 70B. It is characterized by being formed by bending it to the side.

0012 Next, the structure of this invention will be explained in more detail.

[0013] First, the outer seat reclining device will be explained.

[0014] The base plate 20A is fixed to the outer side of the seat cushion S/C. The upper part of the seat slide device is located at the inner lower part of this base plate 20A. A rail 70A is attached, and a flange portion 2 is attached to the periphery of the base plate 20A. 1 is formed, and of this flange portion 21, the upper half flange portion 21a is The flange is formed by bending inward and faces the upper rail 70A. The groove portion 21b is formed by being bent outward. Also, the flange part of the upper half 21a, a semicircular flange portion 21 centered on the axis of the first pivot 31 described later. The tip of c is placed close to the outer surface of the arm 30A, so that it can be seen from above. The locking mechanism 10A is hidden from view.

[0015] The arm 30A is fixed to the outer side of the seatbacks S and B, and its base is attached to the base. It is pivotally attached to the spray plate 20A by a first pivot 31. Upper tooth 40A is fixed to the lower part of the arm 30A, and the center of the axis of the first pivot 31 is fixed to the lower edge of the arm 30A. An arcuate tooth portion 40a is formed. The lower tooth 50A has its base as a base. It is pivoted to the spray plate 20A by a second pivot 51, and is attached to the upper edge of the free end side. Teeth 50a are formed to mesh with the teeth 40a of the part tooth 40A. Also, The lower edge of the lower tooth 50A on the free end side has protrusions 50 on both sides with the recess 50b in between. c and 50d are formed, respectively. And, on the lower periphery of the arm 30A, A flange portion 30a protruding in a direction away from the upper teeth 40A is a first pivot point. It is formed with a predetermined width on the circumference of the shaft 31 with its center as the center. The tooth portion 30a is arranged to cover the tooth portion 40a of the upper tooth 40A. There is.

[0016] The actuating member 60A has its base connected to the base plate 20A by a third pivot 61. The lower tooth 50A has a concave portion 50b and a convex portion on one free end. A cam portion 60a that engages with the portions 50c and 50d is formed. In addition, the operating member 6 A locking portion 60b formed on the other free end side of 0A and a locking portion 60b formed on the base plate 20A. Both hook portions of the tension spring 62 are respectively locked in the locking holes 20a. The actuating member 60A is urged to rotate counterclockwise by the tension spring 62. It is. Further, a connecting member 63A is engaged with the operating member 60A. One end of the wire 64 is locked to the lower free end 63a of the connecting member 63A. child The other end of the wire 64 is connected to the hole 20b formed in the base plate 20A, 20B. 20c, and is locked to the free end of the inner connecting member 63B.

[0017] The operating lever 80 that operates the operating member 60A has its base connected to the base plate 2. 0A by a second pivot 51, and its gripping portion 80a is formed to extend laterally. One end of the connecting rod 65 is connected to the connecting shaft by a pin 66 at the free end projecting upward. supported. The other end of this connecting rod 65 is pinned to the upper free end of the connecting member 63A. It is connected and supported by a link 67.

[0018] One end of each of the first, second and third pivots 31, 51, 61 is connected to the base via a reinforcing plate 90. The other ends of the first, second and third pivots 31, 51, 61 are attached to the base plate 20A. They are each fixed to the holder plate 91, and in particular, the first pivot 31 is fixed to the holder plate 91. A spiral spring 22 is wound around the spring 20A to urge the spring 20A to rotate counterclockwise.

[0019] Next, the inner seat reclining device will be explained. inner The connecting rod 65 and operating lever 80 are removed from the side seat reclining device. Also, due to the layout, the upper rail 70B is located on the outer side. It is attached above the upper rail 70A. Other configurations are virtually This is similar to the seat reclining device on the tar side, and its explanation will be omitted.

[0020] As shown in FIG. 5, the locking mechanism 10A at the time of locking is a The cam portion 60a is moved by the spring force of the tension spring 62 to the convex portion 50c of the lower teeth 50A. This causes the lower teeth 50A to rotate clockwise, and the teeth The portion 50a meshes with the tooth portion 40a of the upper tooth 40A.

[0021] To tilt the seatbacks S and B, pull the operating lever 80 by pulling the tension spring 62. Rotate clockwise against the force. Then, the actuating member 60A connects the connecting rod 65 and The cam portion 60a of the actuating member 60A rotates clockwise via the connecting member 63A. The lower tooth 50A is engaged with the concave portion 50b and the convex portion 50d of the lower tooth 50A. Rotate 50A counterclockwise. At this point, the inner lock mechanism 10B The actuating member 60B is also pulled clockwise by the wire 64 via the connecting member 63B. Similarly, the lower tooth 50B is rotated counterclockwise. by this , each tooth portion 4 of each upper tooth 40A, 40B and each lower tooth 50A, 50B. 0a and 50a are disengaged, and each arm 30A and 30B receives the spring force of the spiral spring 22. The lock is rotated counterclockwise, and the lock is released as shown in FIG.

[0022] In order to fix the seatbacks S and B at the desired angle, the occupant must Rotate the seat backs S and B, and then release the operating lever 80. Then, the operation The lever 80 is rotated counterclockwise by the spring force of the tension spring 62 and returns to its original position. . Due to this return operation, the actuating members 60A and 60B also rotate clockwise, and their cam portions 60a pushes up the convex portions 50c of the lower teeth 50A and 50B and lowers the lower teeth 5. Rotate 0A and 50B clockwise. By this, each upper tooth 40A , 40B and the teeth 40a, 50a of the lower teeth 50A, 50B mesh again. , each locking mechanism 10A, 10B is in the locked state as shown in FIG. Locks S and B can be fixed.

[0023] Here, according to the seat reclining device according to this embodiment, the upper rear The rigidity of the parts of the base plates 20A and 20B to which the frames 70A and 70B are attached is The height is increased by the flange portion 20b, and this flange portion 20b is located on the outside. Since it is bent towards the front, it is not possible to create a rib part that protrudes inward as in the conventional method. This eliminates the need to extend the seat, making it possible to maximize the effective internal width of the seat.

[0024] Please note that the seat reclining device of this invention is limited to both locking mechanisms. Of course, it can also be applied to a one-sided locking mechanism.

[0025]

[Effect of the idea]

As mentioned above, according to this invention, the base plate bends outward. Since the upper rail is attached to the lunge, it can be moved inward as before. Eliminates the need for protruding ribs, maximizing the effective internal width of the seat be able to.

[Brief explanation of drawings]

FIG. 1 is an explanatory front view of the outer locking mechanism of the seat reclining device of this invention.

FIG. 2 is an explanatory view taken along arrow II-II in FIG. 1;

FIG. 3 is an explanatory front view of the inner side locking mechanism of the seat reclining device of this invention.

FIG. 4 is an explanatory view taken along the IV-IV arrow in FIG. 3.

FIG. 5 is an explanatory diagram of the operation of the locking mechanism during locking.

FIG. 6 is an explanatory diagram of the operation of the locking mechanism when releasing the lock.

FIG. 7 is an exploded perspective view of the outer seat reclining device.

FIG. 8 is an exploded perspective view of the inner seat reclining device.

[Explanation of symbols]

S・C seat cushion S・B seat back 10A outer lock mechanism 10B Inner side lock mechanism 20A base plate 20B base plate 21 Flange part 21a Flange part 21b Flange part 21c Flange part 30A arm 30B arm 30a Flange part 40A upper tooth 40B upper teeth 40a Teeth 50A lower teeth 50B lower teeth 50a Teeth 60A operating member 60B Operating member 70A upper rail 70B Upper rail 71 Gap 80 Operation lever

Claims (1)

[Scope of utility model registration request] 1. A seat reclining device in which a locking mechanism is provided inside a base plate that is attached to the side of the seat and has a flange formed on the periphery, and an upper rail of a seat slide device is attached to the inside of the base plate, the seat reclining device comprising: A seat reclining device characterized in that a flange portion of the base plate at a portion facing the upper rail is bent outward.