JPH0649469Y2 - Vehicle seat track assembly structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle seat track assembly structure.

(Prior Art) As one type of vehicle seat track, there is a vehicle equipped with a seatbelt anchor device for removably fixing a seatbelt. Specifically, it is fixed to a vehicle floor via brackets at each end. A lower rail, a lock plate fixed to the lower rail and extending forward from a rear end of the rail, an upper rail slidably mounted on the lower rail to support a seat, and a seat fixed to the upper rail. An anchor arm having a fixing tool for removably fixing the belt is assembled, and the anchor arm is engaged with the lock plate when moving upward and is prevented from moving upward.

Then, in the seat track, as shown in FIG. 6, the bracket 1, the rear end portion of the lock plate 2 and the rear end portion of the lower rail 3 are superposed on each other in this order, and these 3
The persons 1 to 3 are integrally crimped and welded with the rivet 4.

(Problems to be solved by the invention) By the way, depending on the type of vehicle, there are those in which the seatbelt anchor device is directly installed on the vehicle floor or the vehicle body, and the seat track used in this case is a lock for preventing the upward movement of the anchor plate. Not equipped with a plate. Therefore, the rear end portion of the seat track has a two-layer structure in which the bracket and the lower rail are overlapped with each other, and when the heights of the seat track are the same, brackets having different heights are required. The type of rivet used must be selected correctly. Therefore, an object of the present invention is to solve these problems and to standardize the bracket and the rivet.

(Means for Solving the Problem) The present invention provides a vehicle seat track including the above-described seat belt anchor device, wherein the lock plate has a notch at a rear end thereof, and the lock plate has a notch at a rear end thereof. The lower rail is fixed to the lower surface and the rear end of the lower rail projects into the cutout portion, and the bracket is located in the cutout portion of the lock plate, and the side surface of the bracket has a side surface of the cutout portion. In addition to being fixed, the bracket is fixed to the lower surface of the rear end portion of the lower rail projecting into the cutout portion on the upper surface of the bracket.

(Operation and Effect of the Invention) In the assembly structure having such a structure, even in the seat track provided with the seat belt anchor device, the rear end has a two-layer structure in which the bracket and the lower rail are overlapped with each other, and the lower rail and the lock plate are overlapped with each other. A seat track, a bracket, and a rivet that are not equipped with a belt anchor device can be commonly used.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a seat track 10 adopting an assembly structure according to the present invention. The seat track 10 is one of a pair of left and right seat tracks, and supports the vehicle front seat 20 together with the other seat track as shown in FIG. Seat track 10 is lower rail 1
1, an upper rail 12, a lock plate 13, an anchor plate 14 and an anchor arm 15 and a locking means
Equipped with 10a.

The upper rail 12 is in the longitudinal direction (front-back direction) with respect to the lower rail 11.
The lower rail 11 has a lower surface to which a lock plate 13 is fixed, and the upper rail 12 has a rear upper surface to which a hinge plate 12a is fixed. An anchor plate 14 is fixed to the lower surface of the hinge plate 12a. The lock plates 13 extend on both sides of the upper rails 12 and extend forward from the rear ends of the lower rails 11 by a predetermined length, and the anchor plates 14 include the hinge plates 12.
It extends between the upper rail 12 and the lock plate 13 from the outside of a. One end of the lock plate 13 is formed in an engaging recess 13a opening downward, and the lower end of the anchor plate 14 is formed in an engaging protrusion 14a extending upward, and the engaging protrusion 14a is engaged with the engaging recess. It is loosely fitted in the place 13a. The anchor arm 15 includes a buckle 15a that detachably fixes a tongue provided on the seat belt, and is attached to the outside of the anchor plate 14. When an excessive load is applied to the seat belt, the anchor plate 14 has its engaging projection 14a engaged with the top of the engaging recess 13a of the lock plate 13 and is prevented from moving upward. Further, the lock plate 13 constitutes the lock means 10a together with the seat track handle 16 and the like,
An engagement hole 13b is formed on the other side of the lock plate 13. A large number of engagement holes 13b are formed in the front-rear direction. The handle 16 is integrally provided with a lock lever 17 and is rotatably assembled to the upper rail 12 via a bracket 12b. The lock lever 17 engages with the engagement recess 12c of the upper rail 12 through the engagement hole 13b of the lock plate 13 by the spring action of urging the handle 16, and restricts the sliding of the upper rail 12 with respect to the lower rail 11. Such locking means
In 10a, the lock lever 17 is pulled out from the engagement recess 12c and the engagement hole 13b by the turning operation of the handle 16, and can be slid with respect to the upper rail 11.

The seat track 10 is fixed to the vehicle floor via the front and rear brackets 18 and 19, and the upper rail 12 supports the seat cushion 21 and the hinge plate 12a supports the seat back 22. The front bracket 18 is fixed to the lower surface of the front end portion of the lower rail 11. On the other hand, the lock plate 13 has a notch 13c at its rear end as shown in FIGS. 1 and 4, and when it is fixed to the lower surface of the lower rail 11 at its rear end, The end portion projects into the notch 13c by a predetermined length. In addition, the rear bracket 19 is a lock plate
It is located in the notch 13c of 13 and has a lower rail on its upper surface 19a.
It is fixed to the lower surface of the rear end portion of 11 through a rivet 11a, and is fixed to the cutout side surface 13d of the cutout portion 13c of the lock plate 13 by welding at its side surface 19b. Therefore, the rear end portion of the seat track 10 has a two-layer structure in which the lower rail 11 and the lock plate 13, and the lower rail 11 and the rear bracket 19 are overlapped with each other, and the rear bracket 19 and the rivet 11a fixing the lower rail 11 to the seat are seated. It can be used in common with a rear bracket and a rivet of a seat track that does not have a belt anchor device.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a seat track adopting the assembly structure of the present invention, FIG. 2 is a longitudinal sectional view of an anchor plate disposing portion of the seat track, and FIG. 3 is a longitudinal sectional view of a locking means disposing portion. 4 and 5 are perspective views of the seat track as seen from the bottom end side of the rear end, FIG. 5 is a perspective view of a front seat employing the same seat track, and FIG. 6 is a rear end of the conventional seat track. It is an exploded perspective view showing an assembly structure. Explanation of code 10 …… Seat track, 11 …… Lower rail, 12 …… Upper rail, 13 …… Lock plate, 13c …… Notch, 13d
...... Notch side, 14 ...... Anchor plate, 15 ...... Anchor arm, 18, 19 ...... Bracket.

Claims (1)

[Scope of utility model registration request] 1. A lower rail fixed to a vehicle floor at each end via a bracket, a lock plate fixed to the lower rail and extending forward from a rear end of the lower rail, and a front and rear sliding direction on the lower rail. An upper rail that is movably assembled to support the seat and an anchor arm that has a fixture that is fixed to the upper rail and that detachably fixes the seat belt are assembled and engage with the lock plate when moving upward. In the seat track including an anchor plate that is prevented from moving upward, the lock plate has a cutout portion at its rear end, and the lock plate is fixed to the lower surface of the lower rail at its rear end. The rear end of the lower rail projects into the notch, and the bracket fits in the notch of the lock plate. The bracket is fixed to the side surface of the cutout portion at the side surface of the bracket, and is fixed to the lower surface of the rear end portion of the lower rail protruding to the cutout portion at the upper surface of the bracket. Assembling structure of vehicle seat track.