JP3950512B2 - Sheet sliding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sheet sliding device that has less shakiness and has a stable sliding operation force and can withstand a heavy load in the peeling direction.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a slide device for a seat, for example, an automobile seat, as shown in FIG. 7, an upper channel 2 attached to a seat member is fitted to a lower channel 1 attached to a floor member, and the seat member is slid back and forth. What has been made to be proposed is proposed.
[0003]
The lower channel 1 includes a bottom portion 1a, rising portions 1b and 1b rising from both ends of the bottom portion 1a, and falling portions falling outward from the upper ends of the rising portions 1b and 1b in a substantially inverted U shape. 1c, 1c, and the upper channel 2 includes an upper portion 2a and falling portions 2b, 2b that fall from both side ends of the upper portion 2a to the outside of the compatible down portions 1c, 1c of the lower channel 1, respectively. And rising portions 2c and 2c rising inward in a substantially U shape between the rising portion 1b and the falling portion 1c on each side of the lower channel 1 from the lower ends of the falling portions 2b and 2b. Yes.
[0004]
The upper balls 3 and 3 are interposed between the upper part 2a of the upper channel 2 and the corner inner surface part of the falling parts 2b and 2b and the corner outer surface part of the falling parts 1c and 1c of the lower channel 1, respectively. In addition, resin retainers 4 and 4 are interposed between lower ends of the falling portions 1c and 1c of the lower channel 1 and inner bottom portions between the falling portions 2b and 2b of the upper channel 2 and the rising portions 2c and 2c, respectively. It is installed.
[0005]
[Problems to be solved by the invention]
However, in the above-described conventional slide device, in particular, the resin retainer 4 is disposed between the lower end of the falling portion 1c of the lower channel 1 and the inner bottom surface portion between the falling portion 2b and the rising portion 2c of the upper channel 2. Since the resin retainer 4 and each of the channels 1 and 2 slide due to sliding, the operation force increases if the play is reduced, and the play increases if the operation force is reduced. was there.
[0006]
The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a sheet slide device that has less shakiness, stabilizes the slide operation force, and withstands a heavy load in the peeling direction. It is what.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a seat slide device for fitting a lower channel (7) attached to a floor member to an upper channel (8) attached to a seat member and sliding the seat member back and forth. The lower channel (7) includes a bottom portion (7a) , a rising portion (7b) rising from both ends of the bottom portion (7a) , and a substantially inverted U-shape from the upper end of the rising portion (7b) . The upper channel (8) is formed of a falling portion (7c) that falls toward the upper side (8c), and the upper channel (8a) and a compatible falling portion of the lower channel (7) from both ends of the upper portion (8a). falling edge falling respectively inward of (7c) and (8b), and the falling rising portion of each side of the lower end from the lower channels of the falling portion (8b) (7) (7b ) While it formed de rising portions rising respectively outward in a substantially U shape and (8c) between (7c), the corner inner surface portion (7f of the bottom of the lower channel (7) and the rising portion (7a) (7b) ) And a corner outer surface portion (8f ) of the rising portion (8c) of the upper channel (8) , and two lower balls (9) are interposed between the rising portions of the upper channel (8) ( 8c) The bottom bottom end (8e) of the groove (8d) long in the front-rear direction formed at the top end and the inner bottom surface portion between the rising portion (7b) and the falling portion (7c) of the lower channel (7) (7e) , one upper roller (10) is interposed between the upper roller (10), and one lower roller (9) is provided at the front and the rear of the upper roller (10). Lower ball (9) and upper roller (1 ) Is held by the left and right retainers (11), and the upper roller (10) is placed on the inner bottom surface portion (7e) between the rising portion (7b) and the falling portion (7c) of the lower channel (7). A stopper projection (7g, 7h) was formed, and the upper roller (10) was sandwiched between the front end (8g) or rear end (8h) of the concave groove (8d) and the stopper projection (7g, 7h). Sometimes it is used as a stopper for the slide before and after the upper channel (8), so that the upper roller (10) does not incline on the inner surface of the rising part (7b) and the falling part (7c) of the lower channel (7). The present invention provides a sheet slide device characterized in that the width is set to be held .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0009]
As shown in FIGS. 1, 5, and 6, the vehicle seat slide device includes an upper channel 8 attached to a seat cushion of a seat on a lower channel 7 attached to the floor panel with front and rear legs 6, 6. The seat is slid back and forth by fitting.
[0010]
As shown in detail in FIG. 4, the lower channel 7 forms a flat bottom portion 7a and a curved surface (corner inner surface portion 7f) that substantially matches the outer spherical surface of the lower ball 9 from both side ends of the bottom portion 7a. The rising portions 7b and 7b that rise, and the upper ends of the rising portions 7b and 7b fall inward in a substantially inverted U shape while forming bent surfaces that substantially coincide with the outer peripheral surface and both outer end surfaces of the upper roller 10. The falling portions 7c and 7c are formed.
[0011]
The upper channel 8 includes a flat upper part 8a, and falling parts 8b and 8b that fall inward from the opposite ends of the upper part 8a, approaching the outer surfaces of the coexisting rising parts 7b and 7b of the lower channel 7, respectively. The rising portions 8c and 8c rise outwardly in a substantially U shape between the rising portion 7b and the falling portion 7c on each side of the lower channel 7 from the lower ends of the falling portions 8b and 8b. .
[0012]
The corner outer surface portion 8f of each falling portion 8b is formed in a curved surface substantially coinciding with the outer spherical surface of the lower ball 9, and at the upper end of each rising portion 8c, as shown in FIG. A concave groove 8d that is long in the front-rear direction is formed at the front-rear position.
[0013]
The lower ball 9 is interposed between the bottom 7a of the lower channel 7, the corner inner surface (curved surface) portion 7f of each rising portion 7b, 7b, and the corner outer surface portion 8f of each rising portion 8c, 8c of the upper channel 8. Set up. The corner inner surface portion 7f and the corner outer surface portion 8f may be formed by inclined surfaces.
[0014]
Further, the upper roller 10 is interposed between the bottom lower end 8e of the recessed groove 8d of the rising portion 8c of the upper channel 8 and the inner bottom surface portion 7e between each rising portion 7b and the falling portion 7c of the lower channel 7. Set up. A gap between each inner side surface of the rising portion 7b and the falling portion 7c of the lower channel 7 is set to a width W that holds the upper roller 10 so as not to be inclined. Thereby, holding | maintenance of the upper roller 10 is stabilized, operation force is stabilized, and generation | occurrence | production of abnormal noise is also prevented.
[0015]
The upper roller 10 and the lower ball 9 are arranged such that one upper roller 10 and two lower balls 9 are arranged for each concave groove 8d of the upper channel 8, and as shown in detail in FIG. The upper roller 10 is held in the upper notch 11a at the intermediate position in the length direction of the retainer 11 having a letter-shaped cross section, and the balls 9, 9 are held in the lower notches 11b and 11b at the front and rear positions, respectively. Thus, since the lower ball 9 and the upper roller 10 are held by the retainer 11, the relative position of the lower ball 9 and the upper roller 10 is accurately held, the play is reduced, the strength is stabilized, and the lower The ball 9 and the upper roller 10 are prevented from falling off.
[0016]
As shown in detail in FIG. 3, the front and rear rolling positions are provided on the inner bottom surface portion 7 e between the rising portions 7 b and the falling portions 7 c of the lower channel 7 corresponding to the concave grooves 8 d of the upper channel 8. A front stopper projection 7g and a rear stopper projection 7h that are in contact with the outer peripheral surface of the upper roller 10 are formed, and the upper roller is formed between the front end 8g or the rear end 8h of the concave groove 8d and the corresponding stopper projections 7g, 7h. When 10 is sandwiched, the slide before and after the upper channel 8 is stopped (stopped).
[0017]
Accordingly, it is not necessary to provide a separate stopper member by the stopper that also serves to prevent the upper roller 10 from coming off (the lower ball 9 is also prevented from coming off via the retainer 11).
[0018]
As shown in FIGS. 1 and 5, the slide device is provided with a lock mechanism 19 such as a support shaft 16, a lock plate 17, and a lock spring 18, but detailed description thereof is omitted.
[0019]
If the slide device is configured as described above, a lower ball 9 similar to the conventional one is interposed between the corner inner surface portion 7f of the lower channel 7 and the corner outer surface portion 8f of the upper channel 8. An upper roller 10 is provided between the bottom lower end portion 8e of the concave groove 8d of the upper channel 8 and the inner bottom surface portion 7e between the rising portion 7b and the falling portion 7c of the lower channel 7 instead of the conventional resin retainer. Therefore, even if the gap in the vertical direction is reduced, the operating load is stable, and the operation is smooth with less play. Further, when a heavy load is applied, the bottom lower end 8e of the upper channel 8 and the outer peripheral surface of the upper roller 10 are in stable contact with each other in the width direction, so that it can withstand a large load in the peeling direction. Can do.
[0020]
【The invention's effect】
As apparent from the above description, the sliding device of the present invention has a ball interposed between the corner inner surface portion of the lower channel and the corner outer surface portion of the upper channel, and the upper end of the upper channel and the inner portion of the lower channel. Since the roller is interposed between the bottom surface portion and the roller and the ball can be operated by rolling, the gap can be reduced by reducing the gap, and the slide operation force is stabilized. Further, since the upper end of the rising portion of the upper channel and the outer peripheral surface of the upper roller are in a stable contact state in the width direction, it can withstand a heavy load in the peeling direction.
[0021]
Further , when the lower ball and the upper roller are held by the retainer, the relational position between the ball and the roller is accurately held.
[0022]
Further, the upper roller is interposed between the inner bottom surface of the bottom lower and lower channels A Tsu par channel, to form a stopper projection of the upper roller to the inner bottom surface, the groove of the front or rear end stopper projections If the upper roller is sandwiched between the upper channel and the upper channel, a stopper for sliding the front and rear of the upper channel eliminates the need to provide a separate stopper member due to the stopper that also serves to prevent the ball and the upper roller from coming off.
[0023]
Furthermore, by setting the width to retain the inner surfaces of the rising portion and the falling portion of Russia A channel so that the upper roller does not tilt, the holding rollers are stable, with a more stable sliding operation force of the roller Abnormal noise due to tilting can also be prevented.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a slide device of the present invention.
FIG. 2 is a perspective view of a retainer holding an upper roller and a lower ball.
FIG. 3 is a side view showing a relationship between an upper ball and a stopper protrusion.
4 is a cross-sectional view of a lower channel and an upper channel, (A) is a cross-sectional view corresponding to the AA line of the retainer of FIG. 2, and (B) is a cross-sectional view corresponding to the BB line of FIG. It is.
5A and 5B are a slide device, in which FIG. 5A is a plan view and FIG. 5B is a side view.
FIG. 6 is a rear view of the slide device.
FIG. 7 is a cross-sectional view of a conventional lower channel and upper channel.
[Explanation of symbols]
7 Lower channel 7a Bottom portion 7b Rising portion 7c Falling portion 7e Inner bottom surface portion 7f Corner inner surface portion 8 Upper channel 8a Upper portion 8b Falling portion 8c Rising portion 8e Bottom lower end 8f Corner outer surface portion 9 Lower ball 10 Upper roller 11 Retainer

Claims (1)

In the seat slide device for fitting the upper channel (8) attached to the seat member to the lower channel (7) attached to the floor member and sliding the seat member back and forth,
The lower channel (7) has a bottom portion (7a) , a rising portion (7b) rising from both ends of the bottom portion (7a) , and an inward in a substantially inverted U shape from the upper end of the rising portion (7b) . The upper channel (8) is formed with a falling portion (7c) that falls, and the upper channel (8a) and a compatible falling portion (7c ) of the lower channel (7) from both ends of the upper portion (8a). falling edge falling respectively inward of) the (8b), during the rising portion (7b) and the falling edge of each side of the trailing portion (lower channel (7 from the lower end of 8b)) (7c) While formed with a rising portion (8c) each rising outward in a substantially U shape,
Bottom of the lower channel (7) and (7a) corner inner surface portion of the rising portion (7b) (7f), the lower ball between the corner outer surface portion of the rising portion of the upper channel (8) (8c) (8f) ( 9) are provided two by two, and the bottom lower end (8e) of the groove (8d) long in the front-rear direction formed at the upper end of the rising portion (8c) of the upper channel (8) , and the lower channel ( the upper roller (10) is interposed one each rising portion 7) and (7b) between the inner bottom face portion (7e) between the falling edge (7c),
The lower ball (9) is provided one at the front and the rear of the upper roller (10). The pair of front and rear lower balls (9) and the upper roller (10) are separate left and right retainers (11). Retained,
Stopper projections (7g, 7h) of the upper roller (10) are formed on the inner bottom surface portion (7e) between the rising portion (7b) and the falling portion (7c) of the lower channel (7), When the upper roller (10) is sandwiched between the front end (8g) or the rear end (8h) of the groove (8d) and the stopper projection (7g, 7h), it serves as a stopper for the slide before and after the upper channel (8). ,
The inner surface of the rising portion (7b) and the falling portion (7c) of the lower channel (7) is set to a width that holds the upper roller (10) so as not to be inclined . Slide device.

Images