JP3965652B2 - Seat cushion flip-up type car seat - Google Patents

Description

  The present invention relates to an automobile seat that can flip up a seat cushion and fold the entire seat.

  As shown in FIG. 7, as the seat for an automobile, the seat cushion 1 is flipped up with the rear side facing upward, the headrest 2 is tilted forward, and the seat back 3 is moved forward so as to be placed on the under cover 4 of the seat cushion 1. A foldable seat is provided.

  The automobile seat is formed by bending a pipe member into a substantially U-shape, and a central horizontal shaft portion 5a is rotatably mounted with a bearing member 6 in the bottom width direction of the cushion frame 7 with a substantially Ω-shaped bearing fitting 6. The vertical axis 5b is pivotally attached to a bracket 9 rising from the front side of the under frame 8, and is provided with a connecting rod 5 that can be stored between the seat cushion 1 and the under frame 7, and the seat cushion 1 is connected to the connecting rod. 5 is configured to be able to jump up from the under cover 4.

  In the vehicle seat, the horizontal shaft portion 5 a of the connecting rod 5 is rotatably supported by a substantially Ω-shaped bearing fitting 6, and the connecting rod 5 is attached to the bottom of the cushion frame 7 by the bearing fitting 6. Since the bearing bracket 6 is merely rotatably supported, the seat cushion 1 is merely provided so as to be able to jump up from the under frame 4. For this reason, the operator does not feel any response that the seat cushion 1 is moved to a predetermined posture.

  The problem to be solved is to eliminate the mechanical security due to the fact that the operator feels no response even when the seat cushion is flipped up.

  The present invention relates to a round bar pin fixed in parallel to the horizontal axis portion of the connecting rod and being fixed to the upper side of the shaft, a bracket plate that rotatably supports a lower shaft except the round bar pin, and the round bar pin enters. A recess is provided in a predetermined region in the longitudinal direction, and a stopper plate that supports the round bar pin so as to be slidable across the start and end is provided, and the connecting rod including the round bar pin is connected to the bracket plate and the stopper plate. The main feature is that the bearing is mounted on the bottom of the cushion frame and the seat cushion is provided so that it can be lifted up from the under frame by a connecting rod.

  In the seat cushion jump-up type automobile seat according to the present invention, a recess portion into which a round bar pin enters is provided in a predetermined region in the longitudinal direction, and the stopper that supports the round bar pin so as to be slidable over the start end and the end end Since the plate is provided, a click feeling associated with the operator moving the seat cushion can be imparted, so that a mechanical high-class feeling can be given by feeling the movement of the seat cushion in response.

  The present invention is also characterized in that a stopper plate is provided in which one hollow portion into which a round bar pin enters is arranged on the start side and two on the end side. Thereby, when the user places the seat cushion on the underframe, when the seat cushion is lifted from the front side, when the seat cushion is flipped up and stood up, the user can feel a response due to the click feeling.

  The present invention is also characterized in that a resin collar having a good sliding property is provided so as to be interposed between the horizontal shaft portion of the connecting rod and the curved portion of the bracket plate. Thereby, while being able to move a seat cushion stably, generation | occurrence | production of abnormal noise etc. can be prevented.

  FIG. 1 is an explanatory view mainly showing a connecting rod 5 provided between the seat cushion 1 and the underframe 8 so that the seat cushion 1 can be flipped up. In that configuration, a bearing fitting 6 is provided as a characteristic part for mounting the bearing 5 in the width direction of the bottom of the cushion frame 7 so that the horizontal shaft 5a of the connecting rod 5 can rotate. The connecting rod 5 includes a central horizontal shaft portion 5a attached in the width direction of the seat cushion 1 and left and right vertical shaft portions 5b pivotally attached to a bracket plate 9 rising from the front side of the underframe 8. A shaft is bent in a substantially U shape from the member.

  As shown in FIG. 2, the bearing bracket 6 is rotatable around a lower shaft excluding the round bar pin 60, and a round bar pin 60 fixed in parallel with the horizontal shaft part 5 a of the connecting rod 5 and placed on the upper side of the shaft. A bracket plate 61 that supports the rod rod 60, a stopper plate 62 that supports the round pin 60 so as to be slidable across the start and end, and a bottom portion of the cushion frame 7 that rotatably supports the horizontal shaft portion 5a of the connecting rod 5. It is fixed on the surface.

  The bracket plate 61 includes a U-shaped curved portion 61a that receives the horizontal shaft portion 5a of the connecting rod 5, and projecting pieces 61b and 61c that are notched on both sides of the curved portion 61a and bent inward, and are formed from a metal flat plate. Has been. In this configuration, the protruding pieces 61b and 61c are provided so as to protrude toward a circumferential surface position of about two thirds of the circumference of the horizontal shaft portion 5a.

  The stopper plate 62 includes U-shaped rising portions 62a and 62b that define a starting end and an end position, and is formed of a spring flat plate. The stopper plate 62 is provided with arc-shaped depressions 62c and 62d into which the round bar pin 60 enters, at the bases of the rising parts 62a and 62b. Further, another dent portion 62e adjacent to the dent portion 62d is provided on the end side.

  The bearing fitting 6 is assembled with a nylon collar 63 having good sliding properties. The collar 63 is attached so as to be pressed between the projecting pieces 61 b and 61 c of the bracket plate 61 and interposed between the horizontal shaft portion 5 a of the connecting rod 5 and the curved portion 61 a of the bracket plate 61.

  The bearing fitting 6 is formed by overlapping both ends of the bracket plate 61 and the stopper plate 62 and applying them to the plate surface of the cushion frame 7, and by fixing the washer 64 to the inside of the cushion frame 7 and fastening with bolts 65a and 65b. Attached to the bottom surface of the cushion frame 7. A plurality of the bearing fittings 6 are attached in the longitudinal direction of the horizontal shaft portion 5a.

  In the seat cushion jump-up type automobile seat provided with the bearing fitting configured as described above, the connecting rod 5 is disposed between the seat cushion 1 and the under cover 4 in the rearward position when in a normal seating posture as shown in FIG. It is fallen and stored. In this seating posture, as shown in FIG. 2, the round bar hits the rising portion 62 a located on the start end side of the stopper plate 62 and enters the recessed portion 62 c.

  When the seat cushion 1 is flipped up, as shown in FIG. 4, the seat cushion 1 is lifted upward from the front side and pulled out in the horizontal direction. In the course of this movement, the connecting rod 5 rises and rotates with the bracket 9 as a fulcrum, and as shown in FIG. 5, the round bar pin 60 comes out of the recessed portion 62c of the stopper plate 62 and further stops into the recessed portion 62e. It moves along the plate 62.

  When the seat cushion 1 is completely lifted up, the connecting rod 5 rotates obliquely forward with the bracket 9 as a fulcrum, and the round bar pin 60 comes out of the recess 62e of the stopper plate 62 as shown in FIG. It hits the rising portion 62b and moves into the recess 62d.

  During the movement of the seat cushion 1, the operator is given a click feeling by the round bar pin 60 entering and exiting the recessed portions 62 c to 62 e of the stopper plate 62. It gives me a sense of mechanical luxury by being felt in response.

It is explanatory drawing which shows the principal part containing the bearing metal fittings of the seat cushion jump-up-type vehicle seat which concerns on this invention. It is explanatory drawing which mainly shows the bearing metal fitting of FIG. It is a side view which shows the seating attitude | position of the seat cushion jump-up-type vehicle seat which concerns on this invention. It is a side view which shows the seat cushion of FIG. It is explanatory drawing which shows a motion of the bearing metal fitting corresponding to the way of raising the seat cushion of FIG. It is explanatory drawing which shows the motion of the bearing metal fittings corresponding to the state which raised the seat cushion completely. It is a side view showing a seat cushion flip-up type automobile seat concerning a general example in a folded state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat cushion 5 Connecting rod 5a Horizontal axis part of connecting rod 5b Vertical axis part of connecting rod 6 Bearing metal fitting 60 Round bar pin 61 Bracket plate 62 Stopper plate 62c-62e Recessed part 63 Collar 7 Cushion frame 8 Under frame

Claims (3)

A round shaft member is bent into a substantially U shape, and the central horizontal shaft is rotatably mounted on the bottom of the cushion frame. The left and right vertical shafts are pivotally attached to the front side of the underframe. And a connecting rod that can be folded and stored between the seat cushion and the underframe, lifted upward from the front side and pulled forward, the connecting rod is raised from the underframe, and the rear side is raised upward to jump In a car seat with a seat cushion that can be raised,
A round bar pin parallel to the horizontal axis of the connecting rod and fixed to the upper side of the shaft, a bracket plate that rotatably supports the lower axis excluding the round bar pin, and a recess where the round bar pin enters A stopper plate that is provided in a predetermined region in the direction and supports the round bar pin so that the round pin can be slidably contacted from the start to the end, and the connecting rod including the round bar pin is connected to the bottom of the cushion frame from the bracket plate and the stopper plate. A seat cushion jump-up type automobile seat characterized in that the seat cushion is mounted on the seat and the seat cushion can be jumped up from the under frame with a connecting rod.   2. The seat cushion jumping-up type automobile seat according to claim 1, further comprising a stopper plate provided with one recessed portion into which a round bar pin is inserted on the start side and two on the end side. 2. The seat cushion jump-up type automobile according to claim 1, further comprising a resin-made collar having a good sliding property interposed between the horizontal shaft portion of the connecting rod and the curved portion of the bracket plate. Sheet.

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