JP4534068B2 - Reclining seat for automobile with shoulder belt - Google Patents

Description

  The present invention relates to an automobile reclining seat with a shoulder belt.

Riku running sheet for automobiles, assembled a disk-shaped housing, the gear teeth of the ring passing rotatably by relatively a disk-shaped cover plate which is provided on the inner surface of the peripheral wall, covering the lock gear inside the housing Assemble and removably engage with the gear teeth of the plate, assemble a cam that displaces the lock gear, and assemble the operating shaft that protrudes laterally from the plate surface of the cam into the center of the plate surface of the housing and cover plate. A lock mechanism (Patent Document 1) is provided, and the seat back is tilted forward or the seating posture is adjustable in angle.

  In the reclining seat, the housing and the cover plate are respectively attached to the plate surfaces of the side brackets facing the seat back frame and the seat cushion frame, and a lock mechanism is provided on both sides, and both the lock mechanisms are hung on each operating shaft. It is assembled as a single unit with a connecting shaft that is fixed to pass, and is provided with an operating lever for pressing down, rotating and unlocking on one side of the operating shaft, and the locking mechanism on both sides is synchronized with each other via the connecting shaft by lever operation. There are things that make up a portable type.

  The automatic passenger seat is configured as a double-sided reclining seat, and between the anchor portion provided on one shoulder portion side of the seat back and the rear side of the seat cushion in order to receive an impact at the time of a collision with the seat. There is known one (Patent Documents 2 and 3) provided with a shoulder belt 3 that is slanted on the upper body of a seated person.

  As an example of a vehicle seat for a right-hand drive vehicle, as shown in FIG. 5, a lock mechanism 10 or 11 is usually provided on both sides, and both the lock mechanisms 10 and 11 are spanned and fixed to an operating shaft. A piece that is assembled integrally with the connecting shaft 12 and is provided with an operating shaft 13 for the lock mechanism 10 that is positioned on the outer side (right side) of the seat back 1 and is provided on the outer side of the seat back 1. A shoulder belt 3 is provided so as to be inclined to the upper body of the seated person between the anchor portion provided on the shoulder side and the rear side of the seat cushion 2 on the inner side (left side) in the vehicle.

  In the case having the shoulder belt 3, when receiving an impact at the time of a collision or the like, as shown in FIG. 6, as shown in FIG. There is a possibility that the side frame 1a on the belt equipment side will be pulled by the shoulder belt 3 receiving the load of the seated person and twisted and rotated forward.

In that case, the locking mechanism 10 provided in the side frame 1a on the belt equipment side is displaced together with the side frame 1a, so that the locking mechanism 10 is maintained in the locked state. On the other hand, the side frame 1b on the opposite side (hereinafter referred to as “the belt non-equipment side”) has a small forward rotation angle. There is a concern that the lock mechanism 11 on the equipment side may be unlocked.
Japanese Patent Laid-Open No. 8-253063 JP-A-5-317135 JP 2002-12072 A

  A problem to be solved by the present invention is to provide a shoulder belt that is slanted to the upper body of a seated person between an anchor portion provided on one shoulder portion side of the seat back and the rear side of one side portion of the seat cushion, and a collision etc. Even if the seat back is twisted and rotated forward from the side frame on the belt equipment side due to an impact, the vehicle reclining seat is configured to keep both lock mechanisms including the lock mechanism on the belt non-equipment side locked.

The present invention includes a shoulder belt that is slanted to the upper half of the seated person between the anchor portion provided on the one shoulder portion side of the seat back and the rear side of the one side portion of the seat cushion,
A disk-shaped housing is fixed to the side bracket of the seat cushion, a disk-shaped cover plate having ring-shaped gear teeth provided on the inner surface of the outer peripheral wall is fixed to the side bracket of the seat back, and the housing and the cover plate the passing rotatably phase contrast, is to cause the gear teeth mesh with the cover plate lock gear inside said housing assembly to releasably and fixedly mounted a cam for displacing moving the Rokkugya on the axis of the actuating shaft, said A reclining lock mechanism for assembling by inserting the operating shaft extending laterally from the plate surface of the cam into the center of the plate surface of the housing and the cover plate is provided on both side brackets of the seat back frame and the seat cushion frame facing each other. In preparation,
Actuation of the locking mechanism in which both the locking mechanisms are integrally assembled by connecting shafts that are fixed to the respective operating shafts, and an operation lever for pressing, rotating and unlocking is arranged on the same side as the belt equipment side of the seat back. In the reclining seat for automobiles with a shoulder belt for the shaft,
On the same side as the belt equipment side of the seat back, a projecting piece that rises from the axis of the operating shaft is provided, and is positioned outward from the bearing hole of the housing through which the axis of the operating shaft is inserted. Receiving of the projecting piece having a contact edge that engages with a piece in the rotation direction of the operation lever, and having a non-contact edge in the non-rotation direction of the operation lever that keeps a play interval away from the projection piece It is characterized by being provided with a lock mechanism having a portion provided on the plate surface of the housing.

  In the reclining seat for an automobile with a shoulder belt according to the present invention, even if the seat back is twisted and rotated forward from the side frame on the belt equipment side due to an impact such as a collision, the receiving portion is not applied in the locking mechanism on the belt equipment side. The torsional rotation of the front side by the side frame on the belt equipment side is absorbed at the play interval where the contact side is separated from the projecting piece, and the connecting shaft is not rotated because it does not contact the projecting piece of the operating shaft. Thereby, both lock mechanisms including the lock mechanism on the belt non-equipment side can be kept locked.

Figure 1 mainly shows a belt equipped side locking mechanism 10 of the automobile seat with the same shoulder belt when shown in Fig. In the figure, the same components as those in FIG. 5 are denoted by the same reference numerals. Reference numeral 1 is a seat back, 1a is a side frame on the belt-equipped side, 1b is a side frame on the non-belt-equipped side, 2 is a seat cushion, and 3 is a shoulder. Reference numeral 11 denotes a belt non-equipment locking mechanism, reference numeral 12 denotes a connecting shaft, and reference numeral 13 denotes an operation lever.

When the lock mechanism 10 is shown on the belt equipment side of the seat back 1, a cover plate (not shown) is provided that includes a disk-shaped housing 10 a that is fixed to the side bracket of the seat cushion 2 from the inside and fixed to the side bracket of the seat back 1. And the side brackets of the seat back 1 and the seat cushion 2 are provided between the side brackets. As the cover plate, a disc-shaped member having ring-shaped gear teeth provided on the inner surface of the outer peripheral wall is fixed to the side bracket of the seat back 1 .

Between relative to the housing 10a and the cover plate, the lock gear with the to cause the gear teeth mesh with the cover plate inside the housing assembly releasably assembled cam for displacing moving the Rokkugya (or, not shown ) Since the operating shaft 10b is inserted and fixed to the plate surface of the cam through the bearing hole 10c of the housing 10a and further inserted into the center of the plate surface of the cover plate, the entire lock mechanism is assembled.

  Both the lock mechanisms 10 and 11 are integrally assembled by a connecting shaft 12 that is fixed to each operating shaft. The operation lever 13 is provided in the lock mechanism 10 on the belt equipment side for pressing and rotating unlocking (arrow in FIG. 1). The operating lever 13 protrudes outward from the bearing hole 10c of the housing 10a, and is attached to the shaft end side of the operating shaft 10b protruding outward from the side bracket of the seat cushion 2.

  The lock mechanism 10 on the belt equipment side is provided with a protrusion 14 that rises from the axis of the operating shaft 10b, and a receiving portion 15 of the protrusion 14 provided on the plate surface of the housing portion 10a. Of these, the projecting piece 14 has a predetermined length in the axial direction of the operating shaft 10b, and the upper and lower two have the axis of the operating shaft 10b so as to have a predetermined thickness in the circumferential direction of the operating shaft 10b. Via a relative position.

  As shown in FIG. 2, the receiving portion 15 of the projecting piece 14 is provided up and down so as to correspond to the projecting piece 14 of the operating shaft 10b and to be located outward from the bearing hole 10c of the housing portion 10a. As shown in FIG. 3, the receiving portion 15 includes a contact edge 15 a that engages with the projecting piece 14 of the operating shaft 10 b in the rotation direction (arrow) of the operating lever, while being separated from the projecting piece 14 and having a play interval G. Is provided on the plate surface of the housing portion 10a so that the non-contact edge 15b is maintained in the non-rotating direction of the operation lever.

  The receiving portion 15 of the projecting piece 14 can be provided by a notch edge that is cut out in a substantially fan shape from the bearing hole 10c of the housing 10a. Further, the plate surface of the housing 10a may be provided by a concave portion protruding inward from the bearing hole 10c of the housing 10a.

In the automobile reclining seat with a shoulder belt configured as described above, when the operation lever 13 (see FIG. 1) is pushed down and rotated, the operating shaft 10b rotates clockwise in the figure (see FIG. 3). rotation is transmitted to both the locking mechanism 10, 11 by the connecting shaft 12, a cam mounted coaxially of each actuating shaft displaces in the release direction the lock gear from the gear teeth of the cover plate. Thereby, both lock mechanisms 10 and 11 are unlocked, and the seat back 1 is tilted forward or the seating posture can be adjusted in angle.

  If the seat back 1 is twisted and rotated forward from the side frame 1a on the belt equipment side due to an impact such as a collision, the non-contact edge 15b of the receiving portion 15 in the lock mechanism 10 on the belt equipment side is shown in FIG. Absorbs the torsional rotation in the front by the side frame 1a on the belt equipment side at a play interval G away from the projecting piece 14, and does not contact the projecting piece 14 of the operating shaft 10b. Thereby, since the connection shaft 12 does not rotate, both the lock mechanisms 10 and 11 including the lock mechanism 11 on the belt non-equipment side can be kept in the locked state.

  Although the above-described embodiment has been described based on a driver seat for a right-hand drive vehicle, it can be similarly applied to an assistant seat for a right-hand drive vehicle. In the case of an assistant seat, the operating lever is provided on the operating shaft of the locking mechanism located on the outer side (left side) in the vehicle, and the interior of the seat cushion from the anchor portion provided on the one shoulder side located on the outer side of the seat back in the vehicle. What is necessary is just to provide the shoulder belt which slants a seated person's upper body between the side part rear side used as an inner side (right side).

It is explanatory drawing which shows the locking mechanism by the side of the belt equipment in the seat with the reclining seat for automatic persons with the shoulder belt which concerns on this invention. It is explanatory drawing which shows the lock mechanism arrange | positioned at the belt equipment side of FIG. 1 in a normal state. It is explanatory drawing which shows the lock mechanism arrange | positioned at the belt equipment side of FIG. 1 in an unlocked state. It is explanatory drawing which shows the lock mechanism arrange | positioned at the belt equipment side of FIG. 1 in the twist rotation state of the belt equipment side. It is explanatory drawing which shows the reclining seat for automatic persons with the shoulder belt which concerns on a general example. It is explanatory drawing which shows the reclining seat for automatic persons with the shoulder belt which concerns on a general example in the twisted rotation state by the side of a belt equipment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat back 1a Side frame on the belt equipment side 1b Side frame on the belt non-equipment side 2 Seat cushion 3 Shoulder belt 10 Lock mechanism on the belt equipment side 10a Lock mechanism housing 10b Lock mechanism operating shaft 10c Acting shaft bearing hole 11 Belt Non-equipment lock mechanism 12 Connecting shaft 13 Operation lever 14 Projection piece of operating shaft 15 Receiving portion of projection piece 15a Contact edge of projection piece 15b Non-contact edge of projection piece G Play interval

Claims (1)

While equipped with a shoulder belt that hangs on the upper half of the seated person between the anchor part provided on the one shoulder part side of the seat back and the rear side of one side part of the seat cushion,
A disk-shaped housing is fixed to the side bracket of the seat cushion, a disk-shaped cover plate having ring-shaped gear teeth provided on the inner surface of the outer peripheral wall is fixed to the side bracket of the seat back, and the housing and the cover plate the passing rotatably phase contrast, is to cause the gear teeth mesh with the cover plate lock gear inside said housing assembly to releasably and fixedly mounted a cam for displacing moving the Rokkugya on the axis of the actuating shaft, said A reclining lock mechanism for assembling by inserting the operating shaft extending laterally from the plate surface of the cam into the center of the plate surface of the housing and the cover plate is provided on both side brackets of the seat back frame and the seat cushion frame facing each other. In preparation,
Actuation of the locking mechanism in which both the locking mechanisms are integrally assembled by connecting shafts that are fixed to the respective operating shafts, and an operation lever for pressing, rotating and unlocking is arranged on the same side as the belt equipment side of the seat back. In the reclining seat for automobiles with a shoulder belt for the shaft,
On the same side as the belt equipment side of the seat back, a projecting piece that rises from the axis of the operating shaft is provided, and is positioned outward from the bearing hole of the housing through which the axis of the operating shaft is inserted. Receiving of the projecting piece having a contact edge that engages with the piece in the rotation direction of the operation lever, and having a non-contact edge in the non-rotation direction of the operation lever that keeps a play interval away from the projection piece A reclining seat for an automobile with a shoulder belt, comprising a locking mechanism having a portion provided on a plate surface of the housing.

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