JPH11105590A - Seat adjuster available in vehicular seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lock a stud bolt to the supporting member without resting on welding. SOLUTION: Two supporting members 13 and 16 project a port flange 23 to a backside 18 in a bolt hole 22, and a stud bolt 19 forms a body 24 into an outer diameter being slightly larger than an inner diameter of the bolt hole 22, opening a ring groove 29 to a seat bearing surface 28 of a bolt head 25, and the lady 24 is pressed-in the bolt hole 22 from the side of the backside 18 of the supporting member, and then the port flange 23 is engaged with the ring groove 29 and caulked to the supporting members 13 and 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a seat adjuster used for a vehicle seat.

[0002]

BACKGROUND ART Generally, various types of seats are used for passenger car seats.
An adjuster is incorporated so that the occupant can take a comfortable sitting posture according to the physique and preference. For example, a seat track is assembled from a guide rail mounted on the floor, a slide rail slidably fitted to the guide rail with rollers, and a seat lock, and the seat rail of the slide rail. Place the sheet on the flange and tighten the nut on the stud bolt to support the sheet on the slide rail. The stud bolts are welded to the seat flange, while the rollers are also supported on roller pins that are welded to the slide rail web, so that thermal welding distortion occurs in the seat flange and the web. It is easy, and there is a problem that spatter is scattered.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a seat adjuster for use in a vehicle seat which enables a stud bolt and a roller pin to be firmly fixed to a support member without welding.

[0004]

Means corresponding to the object and the operation thereof
A support member projects the hole flange to the back surface at the bolt hole, and a stud bolt forms the body to an outer diameter slightly larger than the inner diameter of the bolt hole, and
A ring groove is opened in the seat surface of the head, the body is pressed into the bolt hole from the back side of the support member, and the hole flange is engaged with the ring groove to be fixed to the support member by caulking. is there.

[0005] Also, in the present invention, the support member protrudes a hole flange at one side in the pin hole, and the roller pin forms the body with an outer diameter slightly larger than the inner diameter of the pin hole, At a predetermined position in the axial direction, a cap flange is protruded to the outer periphery of the body, the body is pressed into the pin hole from one side of the support member, and the hole flange is engaged with the cap flange, and On the other side of the supporting member, the body is subjected to meat staking and caulking is performed by the supporting member.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A seat adjuster used in a vehicle seat according to the present invention will be described below based on a specific example shown and shown in FIGS. 1 to 8. FIGS. 1 to 8 show a front seat 50 of a passenger car. FIG. 9 shows a specific example 10 of a seat adjuster used in the vehicle seat of the present invention, which is embodied in a seat track incorporated in the seat track 10;
At the bolt holes 22, 22, the hole flanges 23, 23 protrude from the back surface 18, 18.
9, 19, the body 24, 24 with its bolt holes 22, 2
2 are formed to have an outer diameter slightly larger than the inner diameter of the bolt heads 25, 25, and ring grooves 29, 29 in the bearing surfaces 28, 28 of the bolt heads 25, 25.
The body 24, 24 is pressed into the bolt hole 22, 22, from the back surface 18, 18 side of the support member 12, and the hole flange 23, 23 is engaged with the ring groove 29, 29. It is swaged by the support member 12.

The support member 12 is a slide rail, and its bolt holes 22 are formed in front and rear seat flanges 16 and 17 which are bent to the front and rear ends of a rail web 13 of the slide rail 12.

The hole flanges 23, 23 are prepared by making pilot holes in the front and rear seat flanges 16, 17, and punching the opening edges of the pilot holes into a cylindrical shape with a punch.
It is formed by flanging, that is, by burring. Further, the holes whose prepared holes are subjected to burring are the bolt holes 22 and 22.

The ring grooves 29, 29
The heads 25, 25 are formed concentrically on the outside of the bodies 24, 24 by the entire peripheral flanges 27, 27 protruding from the bearing surfaces 28, 28 thereof. Also, the ring grooves 29, 29
Is set so that the hole flanges 23, 23 can be swaged and the stud bolts 19, 19 are swaged to the front and rear seat flanges 16, 17, respectively. Of course, the ring grooves 29,2
9 may be machined into its bolt heads 25, 25 at its bearing surfaces 28, 28.

In the seat track 10,
The slide rail 12 projects hole flanges 32, 32 on one web surface 14 at front and rear pin holes 30, 31 of the rail web 13, and
Front and rear roller pins 20, 21 are formed on both side pins, and bodies 33, 33 are formed with outer diameters slightly larger than the inner diameters of the front and rear pin holes 30, 31, and are defined in the axial direction. Body 3 in position
Cap flanges 35, 35 protrude from the outer circumference of the rail web 13, and one of the web surfaces 1 of the rail web 13.
The hole flanges 32, 32 are engaged with the cap flanges 35, 35 while the bodies 33, 33 are pressed into the front and rear pin holes 30, 31 from the four sides, and the other one of the rail webs 13 is engaged. On the web surface 15 side, the body 33, 33
36, and is caulked to the rail web 13.

The hole flanges 32, 32 are formed by burring in which a pilot hole is formed at the front and rear ends of the rail web 13, and an opening edge of the pilot hole is cylindrically stretch-flanged with a punch. Molded. The holes whose prepared holes are burred are the front and rear pin holes 30 and 31.

The front and rear roller pins 2
0 and 21 are pins 3 at both ends of the body 33 respectively.
4 and 34 are extended and offset to one end of the body 33 so that the cap flange 35
And fix the middle of the body 33 to the rail web 13 to fix the pins 34, 3 on both sides.
The roller 37 has a structure for rotatably supporting the rollers 37. Of course, the cap flange 35
It is designed so that the hole flange 32 can be swaged. Also, its front and rear roller pins 20, 21
May be made in a bolt-and-pin configuration in which one of the pins 34, 34 is omitted and the roller 37 is rotatably supported on the other.

Further, in the seat track 10, 38 is a front bracket, 39 is a rear bracket, 40 is a resin cap, 41 is a bolt pin, 42
Is a nut, 43 is a slide stopper, 44 is an operation lever, 45 is a rubber plate, 26 is a screw portion, and
46 is a nut.

In the front seat 50 using the seat track 10, reference numeral 51 denotes a seat cushion frame, 52 denotes a pad, and 53 denotes a skin.

Therefore, the stud bolt 19,
19 is the front and rear seat flange 1
6 and 17 from its back surface 18 and 18 side to its bolt hole 2
The front and rear seat flanges 1 are fitted into the ring grooves 29, 29 while the bodies 24, 24 are pressed into the ring grooves 29, 29.
It is crimped to 6,17. On the other hand, the front and rear roller pins 20 and 21 are press-fitted into the front and rear pin holes 30 and 31 from the one web surface 14 side of the rail web 13 and the bodies 33 and 33 are pressed. The hole flanges 32, 32 are engaged with the cap flanges 35, 35, and the rail flanges 32, 32 are engaged.
On the other web surface 15 side of the web 13, its body 33,
Carcassages 36, 36 are performed on 33, and the rails
The web 13 is crimped.

As such, the stud bolts 19,
19 is the front and rear seat flange 1
6, 17 with front and rear roller pins 2
Since 0 and 21 are caulked to the front and rear ends of the rail web 13, respectively, the welding operation is omitted, the rail web 13 and the seat flanges 16 and 17 are released from welding distortion due to heat, and Eliminating the problem of spatter eliminates the need for smoke exhaust equipment. In particular, since the hole flange is engaged with the ring groove in addition to the caulking, their connection is strengthened.

As will be apparent from the specific embodiments of the present invention described above with reference to the drawings, one of ordinary skill in the art to which the present invention pertains will appreciate the subject matter of the present 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.

[0018]

As can be appreciated from the foregoing, the seat adjuster used in the vehicle seat of the present invention is such that the support member projects the hole flange back at the bolt hole and the stud bolt connects the body. It is formed with an outer diameter slightly larger than the inner diameter of the bolt hole, a ring groove is opened in the bearing surface of the bolt head, the body is pressed into the bolt hole from the back side of the support member, and
Since the hole flange is engaged with the ring groove and fixed to the support member, the seat adjuster used for the vehicle seat of the present invention has the stud bolt which is supported by the support member without welding. The vehicle seat is thereby firmly connected to the supporting member, the welding operation is omitted, the supporting member is released from the welding distortion due to heat, and the spatter is scattered. The disadvantages that may occur are also eliminated, and smoke elimination equipment is eliminated, which reduces costs and is therefore very useful and practical for vehicle seats.

In the seat adjuster used in the vehicle seat according to the present invention, the support member protrudes a hole flange at one side of the pin hole, and the roller pin moves the body from the inner diameter of the pin hole. Is formed to have a slightly larger outer diameter, and a cap flange is protruded to the outer periphery of the body at a predetermined position in the axial direction, and the body is pressed into the pin hole from one side of the support member and the cap is pressed.・ The hole flange is engaged with the flange, and the body is subjected to meat staking and caulking on the other surface side of the supporting member, so that the body is fixed to the supporting member. In a sheet adjuster, the roller pin can be fixedly attached to the supporting member without welding, so that the welding operation can be performed. Omitted, the supporting member is released from the welding distortion due to heat, the problem that spatter is scattered is also eliminated, and the smoke exhaust equipment is omitted to reduce the cost, and as a result, it is very useful for vehicle seats It is practical.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a specific example of a seat adjuster used in a vehicle seat of the present invention, which is embodied in a seat truck incorporated in a front seat of a passenger car.

FIG. 2 is an exploded perspective view of the seat track shown in FIG. 1;

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a perspective view showing a bolt hole.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 4;

FIG. 6 is a perspective view showing a stud bolt.

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 6;

FIG. 8 is a sectional view taken along line 8-8 in FIG. 2;

[Explanation of symbols]

 12 Support member / slide rail 13 Rail web 16 Front seat flange 17 Rear seat flange 19 Stud bolt 20 Front roller pin 21 Rear roller pin 22 Bolt hole 23 Hole flange 24 Body 25 Bolt Head 28 Seat 29 Ring groove 30 Front pin hole 31 Rear pin hole 32 Hole flange 33 Body 34 Pin 35 Cap flange 36 Meat swaging 37 Roller

Claims (4)

[Claims] 1. A support member protrudes a hole flange rearwardly at a bolt hole, and a stud bolt forms a body with an outer diameter slightly larger than the inner diameter of the bolt hole, and a seating surface of the bolt head. A ring groove is opened, the body is pressed into the bolt hole from the back side of the support member, and the hole flange is engaged with the ring groove to form a vehicle seat where the support member is crimped to the support member. Seat adjuster used. 2. A support member protrudes a hole flange at one side in a pin hole, and a roller pin forms the body with an outer diameter slightly larger than the inner diameter of the pin hole, and a predetermined axially defined diameter. Projecting a cap flange on the outer periphery of the body at the position of, pressing the body into the pin hole from one side of the support member, engaging the hole flange with the cap flange, and A seat adjuster used for a vehicle seat in which the body is caulked on the other side of the body and is caulked to the support member. 3. A seat adjuster for use in a vehicle seat according to claim 2, wherein said roller pin is a one-sided pin. 4. The seat adjuster used in a vehicle seat according to claim 2, wherein the roller pins are two-sided pins.