JPH1120524A - Seat lifter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce welding places so as to smoothly slide seat lifters by fitting the lifter to the anchor rail of a seat track, moving the height regulating guide face of the lifter by roller supported with a connecting leg, and providing front and rear seat legs on the lifter. SOLUTION: Right and left lifters 11 are provided with front up height regulating guide faces 20 of a seat track 34, and fitted to right and left anchor rails 35 of the seat track 34 through front brackets 22 and rear brackets 23. Right and left rollers 12 are supported with connecting legs provided on the bottom of a seat cushion frame, and can be moved on the guide faces 20 of the lifters 11. Further right and left front seat legs 14 are welded to the front brackets 22, and right and left rear seat legs 15 are caulkingly locked with the rear brackets 23. In this way, in the anchor rail 35, the welded places are reduced, and hence distortion is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a seat lifter for use in a vehicle seat with a seat track.

[0002]

2. Description of the Related Art A seat lifter of this type is of a combined type with a seat track. When a seat cushion is moved forward and adjusted by the seat track, the seat lifter is linked to a forward slide of the seat track to adjust the seat. -Raise the cushion and adjust the seat height and tilt of the seat cushion. The seat lifter is usually configured such that a lifter having a height adjustment guide surface which rises forward and a roller which is supported on the guide surface so as to be able to roll and move is combined with the lifter for the seat track. By welding to the anchor rail,
Attached to truck. In addition, the seat track has a front seat leg and a rear seat leg welded to the anchor rail.

[0003] As described above, the seat track where the seat lifter is used in combination has many welds, and the anchor rails may be distorted by heat, which may hinder the sliding operation.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to reduce the number of welding points to ensure a smooth sliding operation on a seat track, and to be used together with the seat track, and to seat the seat in conjunction with the seat track. An object of the present invention is to provide a seat lifter capable of adjusting a surface height and a seat inclination.

[0005]

Means corresponding to the object and the operation thereof
Equipped with a front-adjustable height adjustment guide surface that extends in the front-rear direction of the seat track, and is fixedly attached to the left and right anchor rails of the seat track with a front bracket and a rear bracket. The left and right lifters and the left and right connecting legs fixedly mounted near the left and right rear corners of the seat cushion frame are rotatably supported, and on the guide surfaces of the left and right lifters The left and right rollers supported and movably supported, the left and right front seat legs fixedly mounted corresponding to the front brackets of the left and right lifters, and the rear Including left and right rear seat legs fixedly attached corresponding to the bracket, and On its front bracket welded the front seat legs, also at its rear bracket to caulking the rear seat leg.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A seat lifter according to the present invention will be described below with reference to a specific example shown and shown in FIGS. 1 to 5. FIGS.
Example 10 of the sheet lifter of the present invention applied to the back sheet 30 is shown, and its high back
The seat 30 is fixedly mounted on the floor of the passenger car, and is engaged with the left and right anchor rails 35, 35 so as to be slidable back and forth corresponding to the left and right anchor rails 35, 35. Left and right slide rails 36 for mounting and supporting the cushion 31
And a seat track 34 assembled with a lock mechanism (not shown).
In this embodiment, the left and right lifters 11, 11 are provided with a front ascending height adjusting guide surface 20 which extends in the front-rear direction of the seat track 34, and the front bracket 22 and the rear bracket 23 serve as the seat track. 34 are fixedly mounted corresponding to the left and right anchor rails 35, 35, and the left and right rollers 12, 12 are arranged near the left and right rear corners of the seat cushion frame 33 of the seat cushion 31. Are rotatably supported corresponding to the left and right connecting legs 13, 13 which are fixedly attached to the frame bottom, and are supported on the guide surfaces 20, 20 of the left and right lifters 11, 11. It is supported so that it can roll, and furthermore, the left and right front seat legs 14,1
4 are fixedly attached to the left and right lifters 11, 11 corresponding to the front brackets 22, 22, and furthermore, the left and right rear seat legs 15, 1 are provided.
5 is fixedly attached to the left and right lifters 11, 11 corresponding to the rear brackets 23, 23 thereof.
The seat cushion frame 33 has its left and right frame sides pivotally connected to hinge brackets 37 of the left and right slide rails 36 near the left and right front corners.

The left and right lifters 11, 11 are mounted on an inner wall surface 19 of one of the side walls 18, a height adjustment guide surface 20 rising upward.
Are formed in the channel-shaped case 16 having a cross section, and the opening 17 of the case 16 is directed sideways with the height adjustment guide surface 20 facing downward, and the left and right anchor rails 35, It is fixedly attached corresponding to 35. Of course, the left and right lifters 11, 11
The front bracket 22 and the rear bracket 23 are welded to the left and right anchor rails 35.

The left and right lifters 11, 11 extend the front bracket 22 forward and the rear bracket 23 rearward, respectively, and then attach the front seat leg 14 to the front bracket 22. And crimp the rear seat leg 15 to the rear bracket 23. More specifically, the front bracket 22 is heightened to the other side wall 21 at the lifters 11, 11 and protrudes forward from the front ends of the lifters 11, 11, while the rear bracket 23 is The height of the lifters 11, 11 is adjusted to the height of the front bracket 22 and protrudes upward from the rear ends of the lifters 11, 11 so that the upper ends thereof are further extended rearward.

The left and right rollers 12, 12 are bolts
The pins 25 and the nuts 26 rotatably support the left and right connecting legs 13, 13, and are fitted to the left and right lifters 11, 11, respectively. Rolling support is provided on the height adjustment guide surface 20 so as to be movable. The left and right connecting legs 13, 13 are connected to each other by a strut shaft 27 and are prevented from swaying. Of course, the left and right rollers 12, 12 are rotatably supported in correspondence with both ends of a shaft 29 which is supported between the other left and right connecting legs 28, 28 as shown in FIG. You may. In that case, the bolt and pin 25 and the nut 26 are omitted, and the simplification is made.

[0010] The left and right front seat legs 1
The right and left rear seat legs 15, 15 correspond to the left and right lifters 11, 11, respectively, while the left and right rear seat legs 15, 15 correspond to the left and right lifters 11, 11, respectively. Lever bracket 2
3 is crimped to the extension end 24.

In the high back sheet 30 using the sheet lifter 10, reference numeral 32 denotes a sheet
It is back.

In the sheet lifter 10 described above,
The lifters 11, 11 have their front seat legs 14, 14 welded to their front brackets 22, and their rear seat legs 15, 15 in advance.
Is caulked to the extension end 24 of the rear bracket 23. And the lifter 11,
11 is welded to its anchor rails 35, 35 of its seat track 34 with its front bracket 22 and rear bracket 23. Therefore, the anchor rails 35, 35 have fewer welded portions, distortion generated in the anchor rails 35, 35 due to the welding heat is prevented, and the seat track 34 slides smoothly. Since such a smooth sliding operation is ensured on the seat track 34, the seat lifter 10 used with the seat track 34 is used.
Adjusts the seat height and tilt of the high back seat 30 in conjunction with the front-back adjustment of the seat track. The adjustment of the seat height and the seat inclination of the high back seat 30 is smooth, and the comfort for the occupant is improved. Further, the rollers 12, 12 are covered and hidden by the lifters 11, 11 on the side surfaces of the high back sheet 30, and the high back sheet 30,
Safety is improved. Further, the rollers 12, 12
Is the connecting leg 2 on the shaft 29
When rotatably supported by 8, 28, the number of parts is reduced and the structure is simplified.

As will be apparent from the specific embodiments of the invention described above with reference to the drawings, one skilled in the art to which the invention pertains will appreciate the subject matter of this invention. Is the nature of the invention (na
), and are readily embodied in other aspects that are objectively perceived as inherent in them. Of course, the content of the present invention corresponds to the subject of the invention (be commensu).
rate with) and essential for the invention.

[0014]

As will be appreciated from the foregoing, the seat lifter of the present invention includes a forward-adjusting height-adjusting guide surface that extends in the front-rear direction of the seat track, and includes a front bracket and a rear bracket. Brackets that seat
Left and right lifters fixedly attached to the left and right anchor rails of the truck and seat cushion
The left and right connecting legs fixedly attached to the left and right corners of the frame are rotatably supported corresponding to the left and right connecting legs, and the left and right lifters are supported on the guide surface so that they can roll. The left and right rollers and the left and right front seat legs fixedly attached to the left and right lifters corresponding to their front brackets, and the fixedly attached to the left and right lifters corresponding to their rear brackets The left and right rear seat legs of the present invention
In a lifter, the number of welds is reduced to a minimum and attached to the seat track, and the lifter is used together with the seat track to prevent distortion generated in the seat track due to the heat of welding, so that a smooth sliding operation can be performed on the seat track. -Secured to the truck, the seat height and seat inclination of the seat are smoothly adjusted in conjunction with the front and rear adjustment of the seat truck, improving the riding comfort, and improving the safety, as a result, Very useful and practical for vehicle seats with seats and trucks.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a high back seat with a seat track of a passenger car using a specific example of a seat lifter of the present invention.

FIG. 2 is an exploded perspective view partially showing the sheet lifter shown in FIG. 1 when viewed from outside the high back sheet.

FIG. 3 is an exploded perspective view partially showing the sheet lifter shown in FIG. 1 as viewed from the inside of the high back sheet.

FIG. 4 shows the sheet lifter and the sheet lifter shown in FIG.
FIG. 3 is a perspective view partially showing a track.

FIG. 5 is a sectional view taken along the line 5-5 in FIG. 1;

FIG. 6 is an exploded perspective view showing another attachment of the roller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Lifter 12 Roller 13 Connecting leg 14 Front seat leg 15 Rear seat leg 20 Front height adjustment guide surface 22 Front bracket 23 Rear bracket 24 Extension end

Claims (4)

[Claims] 1. A front-adjustable height-adjusting guide surface extending in the front-rear direction of a seat track, and
Left and right lifters fixedly attached to the left and right anchor rails of the seat track with brackets and rear brackets, and right and left lifters fixedly attached to the left and right rear corners of the seat cushion frame The left and right rollers that are rotatably supported corresponding to the connecting leg, and that are supported on the guide surfaces of the left and right lifters and that can be rolled, and the front brackets of the left and right lifters The left and right front seat legs that are fixedly attached to the left and right rear seats that are fixedly attached to the rear brackets of the left and right lifters.
Seat lifter including seat leg. 2. The left and right lifters are formed in a groove-shaped case having a cross section that forms a front-adjustable height adjusting guide surface on the inner wall surface of one of the side walls, and the front-advanced height-adjusting guide surface is provided. The seat lifter according to claim 1, wherein the case is fixedly attached to the left and right anchor rails with the openings of the case facing each other in a horizontal direction with the lower side. 3. The left and right lifters extend the front bracket forward and the rear bracket backward, and the left and right front seat legs
The left and right lifters are welded corresponding to the front bracket of the left and right lifters, and the left and right rear seat legs are crimped corresponding to the rear brackets of the left and right lifters. Sheet lifter. 4. The sheet lifter according to claim 1, wherein the left and right rollers are rotatably supported corresponding to both ends of a shaft supported and supported between the left and right connecting legs.