JP2527734Y2 - Seat and slide device - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention relates to a seat slide device suitable for a two-door vehicle in a passenger car.

(Prior Art) When riding in a rear seat of a two-door car, a so-called walk-in operation is performed in which a seat back of a front seat is lowered forward and a seat cushion is moved forward. Was set to be equal to the operation amount of a normal seat slide.

(Problem to be solved by the invention) However, even if the user walks in by the amount of seat slide normally used, it is cramped to enter the rear seat. In order to easily enter the rear seat, the seat slide amount should be increased, but if the seat slide amount is increased, there are problems such as compliance with belt anchor regulations and securing seat strength, etc.
There is a strong demand that the stroke be extended only during the walk-in operation without changing the normally used seat slide amount.

An object of the present invention is to provide a seat slide device that solves the above-mentioned problem due to the conventional structure.

(Means for Solving the Problems) The present invention relates to a seat slide device, comprising a front shaft and a rear shaft which are juxtaposed to each other and extend in the seat slide direction and integrally formed with a crank shaft provided on the seat side. A latch fixed to the rear axle and engaged with and disengaged from the first immovable portion of the vehicle body; a rear end abutting on the front axle; And the swinging lever provided on the seat side and the latch are rotated to release the engagement with the first fixed portion, and the swinging lever A seat sliding handle for separating the front shaft from a rear end, and a rotation of the rear end of the rocking lever in a direction to push the front shaft to move the front end of the rocking lever to the second immovable position. Evacuate from department And a walk that rotates the rear end to release the engagement between the latch and the first immovable portion, and allows the front end of the swing lever to move forward beyond the second immovable portion. And a biasing means for constantly biasing the crankshaft in a direction in which the latch engages the first immovable portion and the front end of the swing lever faces the second immovable portion. It has.

(Operation) When the seat slide handle is operated, the engagement between the latch and the first immovable portion is released, but the contact relationship between the rear end of the swing lever and the front shaft is also released. , The front end of the swing lever slides with a normal stroke in contact with the second immobile portion.

When the walk-in handle is operated, the front end of the swing lever retracts from the second immobile portion, and at the same time, the rear end of the swing lever pushes the front shaft to rotate the rear shaft, and the latch and the first
Is disengaged from the second stationary part, the seat moves a great deal beyond the position of the second stationary part.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment. In the drawing, reference numerals 1 and 2 respectively denote a first fixed portion and a second fixed portion attached to a vehicle body, and all other members are attached to a seat side (not shown).
It moves with the sheet. A crankshaft 3 and a swing lever 4 are arranged along the sliding direction of the seat, a seat sliding handle 5 is provided at one end in the vehicle width direction of the seat, and a walk-in handle 6 is provided above the seat.
Are arranged respectively. The crankshaft 3 has a front shaft 31 and a rear shaft 32 which are arranged in parallel with each other, and is integrally formed. The rear shaft 32 is rotatably supported by a bearing (not shown). One end of 7 is implanted, and a latch 8 made of an L-shaped plate is fixedly mounted at an intermediate portion. The other end of the torsion spring 7 is locked to the seat member 9 and constantly urges the crankshaft 3 to rotate clockwise in the drawing. By the action of the torsion spring 7, one end 81 of the latch 8
Are provided with a plurality of vertical grooves 11, 12, ... provided in the first immobile portion 1.
At all times, is provided with a habit of locking the seat slide, and the front shaft 31 of the crankshaft 3
Has a habit of pushing up the rear end 41 of the swing lever 4 from below in the figure. Handle 5 for seat slide
Is formed in an arc shape, and is supported so as to be rotatable about a central fulcrum 51. One end 52 is connected to the other end 82 of the latch 8 via the rod 10. Therefore, when the other end 53 of the seat slide handle 5 is pulled upward in the drawing,
The latch 8 is rotated counterclockwise in the drawing to release the engagement between the latch end portion 81 and the first immovable portion 1. At that time, the crankshaft 3 also rotates counterclockwise, as described later, so that the front shaft 31 is separated from the rear end 41 of the swing lever. 2 so as not to disturb the relative relationship. Under the unlocked state of the first immovable portion 1, the sheet can be advanced until the front end 42 of the swing lever 4 abuts on the second immovable portion 2. The swing lever 4 has a shape in which both ends hang down. The swing lever 4 is pivotally supported on a center support shaft 43, and both ends of a torsion spring 111 wound around the support shaft 43 are engaged with the swing lever 4 and the sheet member 121. By stopping, the behavior of turning in the counterclockwise direction in the figure is given. The upper part of the rear end of the swing lever 4 abuts against a pin 13 protruding from the sheet member 121 to restrict its rotation behavior. The walk-in handle 6 has one end 61 pivotally supported at a fulcrum 62, and has a central portion connected to the intermediate portion between the fulcrum 43 and the front end 42 of the swing lever 4 via the rod 14. The swing lever 4 is held by the torsion spring 111 and the pin 13 and is not affected by the operation of the seat slide handle 5. The swinging lever 4 rotates clockwise, pulls the front end 42 of the lever 4 upward and crosses the second immovable part 2, and at the same time, the rear end 41 of the lever 4 moves the front shaft 31 of the crankshaft downward. Push. When the crankshaft 3 is rotated counterclockwise in the drawing, the engagement between the first immovable part 1 and the latch 8 is released in the same manner as when the seat slide handle 5 is operated. Therefore, the seat is moved from the front end 42 of the swing lever 4 to the second immovable portion 2.
It moves even more without hitting the.

(Effects of the Invention) Since the invention is configured as described above, the seat slide handle is operated for a normal seat slide, and the walk-in handle is operated to enter a rear seat, and the normal seat slide is operated. The seat can be moved in excess of the amount, the space for walk-in is increased, and the ease of getting on and off the rear seat is dramatically improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing only an essential part of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... 1st fixed part, 2 ... 2nd fixed part, 3 ... crankshaft, 4 ... rocking lever, 5 ... handle for seat slide, 6 ... handle for walk-in, 7 ... ... Latch, 31... Front shaft, 32... Rear shaft, 41... Rear end of swing lever, 42... Front end of swing lever.

Claims (1)

(57) [Scope of request for utility model registration] 1. A crankshaft provided on a seat, wherein a front shaft and a rear shaft which are arranged side by side and extend along a seat sliding direction are integrally formed. (1) a latch engaged with and disengaged from the immovable portion, a rear end of which abuts on the front shaft, and a front end of the latch is opposed to a second immovable portion of the vehicle body that determines a foremost position of a normal seat slide amount in the seat slide direction; A swing lever provided on a seat side, a seat slide handle for rotating the latch to release engagement with the first immovable portion, and separating the front shaft from a rear end of the swing lever. Rotating the rear end of the rocking lever in a direction to push the front shaft to retract the front end of the rocking lever from the second immovable portion and rotating the rear shaft. The latch and the first immovable part And a walk-in handle that allows the front end of the swing lever to move forward beyond the second immovable portion, and engages the latch with the first immovable portion. And a biasing means for constantly biasing the crankshaft in a direction in which the front end of the swing lever faces the second immovable portion.