JPH11170868A - Rail device of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the rolling noise of a roller in sliding a slide body by using a buffer rail in which a resin layer as the buffer layer is interposed between a plurality of steel sheets. SOLUTION: In a rail 20, a plate-like adhesive layer (a vibration absorption layer) 20C formed of a synthetic resin (e.g. a nylon resin) is interposed between two steel sheets 20A and 20B. When a slide door slides, the rail 20 fixed to the slide door is brought into contact with a roller supported by a fixed member on a body side, and rolled. The vibration generated when the roller is rolled, is absorbed by the adhesive layer 20C of the rail 20, and the rolling noise can be reduced. Because the vibration absorbing effect is obtained by the adhesive layer 20C which is provided on the rail 20 as an original structural body, no powder coating on the rolling surface is unnecessary, and the vibration absorbing effect (the noise absorbing effect) stable for a long time, can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a rail device for guiding a slide body of a vehicle.

[0002]

2. Description of the Related Art For example, in a wagon (one-box) vehicle, a slide door is widely used for a rear seat. The sliding door has a basic structure in which a rail member facing the moving direction of the sliding door is fixed to one of the door and the vehicle body side fixing member, and a roller that rolls in contact with the rail member is provided on the other. Having.
Conventionally, in the slide door rail device, a powder coating is applied to a contact surface of the rail member with the roller in order to reduce the rolling noise of the roller when the door is opened and closed. But,
Powder coating has problems in cost, film thickness control, and durability. That is, not only is the cost increased due to the need for a powder coating process, but also it is difficult to keep the coating film thickness constant, so that sufficient low rolling noise cannot be achieved and the slide When the door is repeatedly opened and closed, it may be worn out or peeled off, giving rise to irregularities on the powder coating surface, and as a result, slide backlash and abnormal noise may occur.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a rail device capable of reducing the rolling noise of a roller when a vehicle slide body is slid without using powder coating.

[0004]

SUMMARY OF THE INVENTION The present invention uses a buffer rail material in which a resin layer serving as a buffer layer is interposed between a plurality of steel plates instead of applying powder coating to a rail material made of a normal steel plate. ,
The present invention focuses on reducing rolling noise over a long period of time (semi-permanently) without problems of film thickness control and durability as in the conventional apparatus. Specifically, such a buffer rail material can be easily obtained by diverting at least a damping steel plate. A damping steel sheet is a material in which a resin plate-like adhesive is placed between two steel sheets. This resin layer absorbs vibrations and suppresses the generation of sound (low-frequency sound generation). Have been. This damping steel plate is more expensive than a normal steel plate, but compared to the case where powder coating is applied to a normal steel plate,
Total cost is lower.

That is, according to the present invention, a rail member is fixed to one of a body-side fixing member of a vehicle and a slide body provided in the vehicle in a moving direction of the slide body.
On the other hand, in a rail device of a vehicle provided with a roller that rolls in contact with the rail member, a portion of the rail member that receives a load of the slide body via at least the roller serves as a buffer between a plurality of steel plates. The present invention is characterized in that a buffer rail material with a resin layer interposed is provided.

[0006] The rail material can be a buffer rail material as a whole. Alternatively, it may be constituted by an outer shell rail member constituting the outer shell and a flat buffer rail member fixed to a portion of the outer shell rail member that bears the slide body load. It is inexpensive that the buffer rail material is specifically made of a damping steel plate.

The rail device of the present invention can be applied to other rail devices such as a seat track device for a driver's seat and a passenger seat, in addition to the slide door.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, the present invention is applied to a sliding door of a vehicle. As shown in FIG. 4, the one-box car 10 is provided with a slide door 11 for a rear seat on one side surface thereof. A plurality of rail members 20 are fixed above and below the inner surface of the slide door 11 in parallel with the sliding direction.

FIG. 1 shows an embodiment in which the entire rail member 20 is formed of a buffer rail member. The rail member (buffer rail member) 20 is composed of an upper horizontal wall 21, a lower horizontal wall 22, a vertical connecting wall 23 connecting the ends of the upper horizontal wall 21 and the lower horizontal wall 22, and a vertical length of the lower horizontal wall 22. It is a uniform sectional material having a lower vertical wall 24 extending upward from an end opposite to the coupling wall 23, and an insertion space 25 is formed between the upper horizontal wall 21 and the lower vertical wall 24. . This rail member 20 is shown in FIG.
As shown in an exaggerated manner, a plate-shaped adhesive layer (vibration absorbing layer) 20C made of a synthetic resin (for example, a nylon resin) is interposed between two steel plates 20A and 20B. Commercially available as steel sheet. Although the illustrated cross-sectional shape is an example, it can be processed into an arbitrary uniform cross-sectional shape by roll forming. The rail member 20 is fixed to the fixing bracket 1.
3 and is fixed to the slide door 11 via fixing screws 14.

On the other hand, the vehicle body-side fixing member 15 includes:
Rollers 16 and 1 that roll in contact with the rail member 20
7, 18 are supported. The roller 16 is a rail material 2
The upper side of the upper horizontal wall 21 is rotatably supported by the tip of a support arm 16a fixed to the body-side fixing member 15. The rollers 17 and 18 are located on the left and right sides of the lower vertical wall 24 of the rail member 20 and sandwich the lower vertical wall 24. The rollers 17 and 18 are rotatable at the tips of support brackets 17a and 18a fixed to the body-side fixing member 15, respectively. It is supported by. The support bracket 17a and the roller 17
The rail member 20 is guided from the insertion space 25 into the rail member 20. A plurality of sets of these rollers 16, 17, 18 are provided on the body-side fixing member 15 at predetermined intervals in the extension direction of the rail member 20.

FIG. 1 shows a cross-sectional shape around the center rail member 20 of the three rail members 20 fixed to the slide door 11 in FIG. A plurality of rollers rolling in contact with the rail member 20 are supported on the body-side fixing member 15 at predetermined intervals in the extension direction of the rail member 20.

When the slide door 11 is slid, the rail member 20 fixed to the slide door 11 is brought into contact with the rollers 16, 17, 18 supported on the body-side fixing member 15 side. In contact, these rollers roll. The vibration generated when the roller rolls is absorbed by the adhesive layer 20C of the rail member 20, and the rolling noise is reduced. This vibration absorbing action
Adhesive layer 2 that rail material 20 originally has as a structure
Since it is obtained by 0C, there is no need to apply powder coating to the roller rolling surface as in the conventional apparatus, and a long-term stable vibration absorbing action (sound absorbing action) can be obtained. Rail material 20
Is an example, and the cross-sectional shape is not limited.

FIG. 3 shows an embodiment in which a buffer rail is provided only at a portion that bears the load of the slide body via the roller 16 without using the entire rail as a buffer rail. The rail member 30 is composed of an outer shell rail member 31 which is generally made of a steel plate and has a substantially U-shaped cross section, and a rolling surface of the roller 16 of the 31.
That is, it is composed of a flat buffer rail material (damping steel plate) 32 fixed to the load bearing surface. This buffer rail material 32
Is the same as the laminated structure of the cushioning rail member 20,
A plate-like adhesive layer (vibration absorbing layer) 32C made of a synthetic resin is interposed between two steel plates 32A and 32B.
Since the vibration mainly occurs in the portion of the slide body which receives the load, the vibration absorbing function (sound absorbing function) can be obtained also in this embodiment.

The present invention can be applied to a rail device of another slide body such as a rail device of a seat slide device.

[0015]

According to the rail device of the present invention, since the damping steel plate is used as the rail material, the rolling noise of the roller when the slide body of the vehicle slides can be reduced without using powder coating.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view taken along line II of FIG. 4, showing an embodiment in which a vehicle rail device according to the present invention is applied to a sliding door.

FIG. 2 is a schematic enlarged view of a single rail member of the rail device of FIG. 1;

FIG. 3 is a sectional view showing another embodiment of the rail device for a vehicle of the present invention.

FIG. 4 is a side view of a vehicle having a sliding door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 One box car 11 Slide door 15 Body side fixing member 16 17 18 Roller 20 Rail material (buffer rail material) 20A 20B 32A 32B Steel plate 20C 32C Adhesive layer 30 Rail material 31 Outer shell rail material 32 Buffer rail material

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuo Kamiya 2 Kirihara-cho, Fujisawa-shi, Kanagawa Prefecture Shiroki Kogyo Co., Ltd.

Claims (6)

[Claims] 1. A rail member is fixed to one of a body-side fixing member of a vehicle and a slide member provided in the vehicle in a moving direction of the slide member, and the other is in contact with the rail member. In a rail device for a vehicle provided with rolling rollers, a buffer member in which a resin layer serving as a buffer material is interposed between a plurality of steel plates at least in a portion of the rail member that receives a load of a slide body via the roller. A rail device for a vehicle, comprising a rail member. 2. The rail device for a vehicle according to claim 1, wherein the rail member is entirely formed of a buffer rail member. 3. The rail device according to claim 1, wherein the rail member comprises an outer shell rail member constituting an outer shell, and a flat buffer rail member fixed to a load bearing portion of the outer shell rail member. Rail device of a vehicle. 4. The rail device according to claim 1, wherein the slide body is a slide door. 5. The rail device according to claim 4, wherein the rail member is fixed to the slide door, and the roller is supported by the body-side fixing member. 6. The rail device according to claim 1, wherein the shock-absorbing rail member is made of a damping steel plate.