JP5649712B2 - Seat slide device - Google Patents

Description

In the present invention, the upper rail is supported on the lower rail so as to be movable in the rail direction, and the upper rail is moved by locking the locking portions provided on the upper rail by stoppers disposed near both ends in the longitudinal direction of the lower rail. The present invention relates to a seat slide device for regulating a range.

2. Description of the Related Art There is provided a seat slide device that supports a seat of an automobile so as to be movable back and forth, and includes a mechanism (stopper / locking portion) that regulates a moving range thereof.
As a mechanism for restricting the movement range, a stopper is provided so as to protrude from the inner wall surface of the bottom wall near the both ends in the longitudinal direction of the lower rail, and a locking portion locked by the stopper is provided at a corresponding portion of the upper rail. Many mechanisms are known. For example, JP 2007-223345 A (Patent Document 1) can be cited.

However, a mechanism in which a stopper is provided so as to protrude from the inner wall surface of the side wall portion of the lower rail (the side wall portion standing from the edge of the bottom wall portion) is not known.

JP 2007-223345 A

A seat slide device equipped with a mechanism (stopper / locking portion) that supports the seat of an automobile so that it can move back and forth, and a request for downsizing and weight reduction, a man-hour reduction, or There is a demand for easy assembly work.
The present invention regulates the range of movement of the upper rail by supporting the upper rail on the lower rail so that the upper rail can be moved and locking the locking portions provided on the upper rail by stoppers disposed near both ends in the longitudinal direction of the lower rail. An object of the seat slide device is to meet the above-described requirements.

The present invention is configured as described in [1] to [ 2 ] below. In addition, the code | symbol attached | subjected in this term (means for solving a subject) and the following term (effect of invention) is for understanding easily, and is not the meaning which limits this invention to the structure of a code | symbol.
[1] Configuration 1:
The upper rail 2 is supported on the lower rail 1 so as to be movable in the rail direction, and engaging portions 29 (290) provided on the upper rail 2 are engaged by stoppers 19 (190a) disposed near both ends in the longitudinal direction of the lower rail 1. A seat slide device that regulates the range of movement of the upper rail 2 by stopping,
The lower rail 1 includes a bottom wall portion 10 forming a rail bottom portion, a side wall portion 11 standing upward from an edge of the bottom wall portion 10, and extending from the upper end of the side wall portion 11 toward the inside of the rail. A ceiling wall portion 12 and a hanging portion 13 suspended from the tip of the ceiling wall portion 12;
The upper rail 2 is composed of a pair of plate members provided at a predetermined interval in the upper direction, a vertical plate portion that supports the seat at the upper portion, and a lower end of the plate material of the vertical plate portion to the outside of the rail. A bottom plate portion 21 extending toward the bottom, and a tip portion of the bottom plate portion 21 that is erected upward from the tip of the bottom plate portion 21, and the tip of the bottom plate portion 21 is formed in the groove formed by the side wall portion 11, the top wall portion 12, and the hanging portion 13 A side plate portion 22 positioned,
The stopper has an installation base at a position lower than the lower end of the hanging part 13, and a protrusion 19 (190a) provided on the side wall part 11 so that the tip projects from the inner wall of the side wall part 11 toward the rail inward. ) And
The locking portion is provided so as to protrude from the edge of the bottom plate portion 21 or the side plate portion 22 toward the outer side of the rail, and the tip is positioned within a range in which the stopper 19 (190a) can be locked. 29 (290),
A seat slide device characterized by that.
[2] Configuration 2:
In configuration 1,
The stopper is a protruding piece formed by cutting and raising the side wall portion.
A seat slide device characterized by that.
Here, although there is a difference from the present invention, the following [a] to [h] are given as reference examples having a configuration related to the present invention.
[A] Reference a:
The upper rail 2 is supported on the lower rail 1 so as to be movable in the rail direction, and a locking portion 29 (290) provided on the upper rail 2 is engaged by stoppers 19 (190) disposed near both ends of the lower rail 1 in the longitudinal direction. A seat slide device that regulates the range of movement of the upper rail 1 by stopping,
The lower rail 1 includes a bottom wall portion 10 that forms a rail bottom portion, an outer side wall portion 11 that is erected upward from an outer side edge of the bottom wall portion 10, and extends from the upper end of the outer side wall portion 11 to the inner side. A ceiling wall part 12 provided, and a hanging part 13 suspended from the tip of the ceiling wall part 12;
The upper rail 2 is composed of a vertically-provided plate material that supports a seat at the top, a bottom plate portion 21 that extends from the lower end of the plate material of the standing plate portion 20 to the outer side, and the bottom plate A side plate portion 22 which is erected upward from the tip of the portion 21 and whose tip is located in a groove formed by the outer side wall portion 11, the top wall portion 12 and the hanging portion 13 of the lower rail 1;
The stopper has an installation base at a position lower than the lower end of the hanging part 13, and a protrusion 19 (190) provided on the outer side wall 11 so that the tip protrudes from the inner wall of the outer side wall 11 to the inner side. Yes,
The locking portion is provided so as to protrude from the outer side tip of the bottom plate portion 21 or from the side plate portion 22 toward the outer side, and the tip 29 is positioned in a range in which the stopper 19 (190) can be locked. (290),
A seat slide device characterized by that.

In the above, outer (side) and inner (side) indicate that they are in opposite directions. Therefore, instead of this expression, expressions such as “one (side)” and “the other (side opposite to the one)” may be used. As the outer (side) / inner (side), for example, when a pair of seat slide devices are arranged immediately below the left and right sides of the seat occupant, the outer side is viewed from the seat occupant. The center side can be an inner side.
In addition, in the above, the standing plate portion 20 may be constituted by two parallel plate materials 20a and 20b as will be described later in reference c. Alternatively, a predetermined gap may be maintained and provided in parallel.

[B] Reference b:
In reference a ,
The lower rail 1 further includes an inner side wall portion 16 erected upward from an inner side edge of the bottom wall portion 10.
A seat slide device characterized by that.
According to the reference b, even when the strength of the lower rail 1 is increased by having the extending portion toward the inner side, the same effect as the reference a can be achieved.

[C] Reference c:
In reference b ,
The lower rail 1 is further extended from the front end of the inner side wall portion 16 to the outer side, and from the front end of the second top wall portion 17 to the bottom wall portion 10 side. A second drooping portion 18;
The plate material of the upright plate portion 20 of the upper rail 2 is composed of two parallel plate materials, an outer side plate material 20a and an inner side plate material 20b, and the bottom plate portion 21 extends from the outer side plate material 20a.
The upper rail 2 is further provided with a second bottom plate portion 26 extending from the lower end of the inner side plate member 20b toward the inner side, and standing upward from the tip of the second bottom plate portion 26, the tip of which is the lower rail 1 A second side plate portion 27 located in a groove formed by the inner side wall portion 16, the second top wall portion 17, and the second hanging portion 18.
A seat track device.
Each of the outer side plate member 20a and the inner side plate member 20b may be a different plate member, or one plate member may be bent and continuous in an upper portion (not shown in FIG. 1). Moreover, both board | plate materials may be closely_contact | adhered by 2 sheets, and the predetermined clearance gap may be opened.
According to the reference c, even when the strength of the upright plate portion 20 is increased and the strength of the upper rail 2 is increased by having the extending portion toward the inner side, the same effects as those of the configuration 2 can be obtained. it can.

[D] Reference d:
In reference c ,
The inner side wall portion 16 and the second top wall portion 17 of the lower rail 1 are set such that the highest part secures a predetermined height difference from the lower end of the hanging portion 13,
The extended width of the bottom plate portion 21 of the upper rail 2 is wider than the extended width of the second bottom plate portion 26,
The virtual surface obtained by extending the upright plate portion 20 of the upper rail 2 downward has a bottom wall portion 10 of the lower rail 1 such that the width immediately below the bottom plate portion 21 is wider than the width directly below the second bottom plate portion 26. Split,
A seat slide device characterized by that.
According to the reference d, the extension part on the inner side can be reduced in size and weight.

[E] Reference e:
In any of Reference a to Reference d ,
The stopper is a protruding piece 19 formed by cutting and raising the outer side wall 11.
A seat slide device characterized by that.
According to the reference e, in addition to the reference a to the reference d, a specific configuration can be provided. Further, the protrusion piece 19 of reference e can be prevented from protruding from the inner surface of the outer side wall portion 11 before the upper rail 2 is assembled to the lower rail 1 and can be pressed and projected after the assembly. According to such a procedure, not only the work is easy, but also the process of assembling the upper rail 2 to the lower rail 1 can be automated.

[F] Reference f:
In any of Reference a to Reference d ,
The stopper is a rivet attached to the outer side wall 11.
A seat slide device characterized by that.
According to the reference f, a specific configuration different from the reference e can be provided.

[G] Reference g:
In any of Reference a to Reference d,
The stopper is a rivet 190 that fixes the upright plate portion 51 of the foot bracket 5 for fixing the lower rail 1 to the floor to the outer side wall portion 11.
A seat slide device characterized by that.
According to the reference g, the formation of the stopper and the attachment of the foot bracket 5 can be performed at the same time, and the number of man-hours can be reduced.

[H] Reference h:
In reference g ,
The foot bracket 5 includes an upright plate portion 51 that is in close contact with the outer surface of the outer side wall portion 11 of the lower rail 1, an upper plate portion 52 that is in close contact with the upper surface of the top wall portion 12 of the lower rail 1, and the lower rail 1. A lower plate portion 53 that is in close contact with the lower surface of the bottom wall portion 10;
A seat slide device characterized by that.
According to the reference h, even when an impact force is applied to a nearby belt anchor (not shown) and pulled upward, the belt plate is pressed by the upper plate portion 52 that is in close contact with the upper surface of the top wall portion 12, and thus the above force. Can withstand. Further, the foot bracket 5 can be firmly attached to the lower rail 1.

In the configuration 1, the upper rail 2 is supported on the lower rail 1 so as to be movable in the rail direction, and a locking portion 29 (provided on the upper rail 2 by stoppers 19 (190a) disposed near both ends in the longitudinal direction of the lower rail 1 ( 290) is a seat slide device that restricts the range of movement of the upper rail 2, and the lower rail 1 is configured to stand upward from the bottom wall portion 10 forming the rail bottom portion and the edge of the bottom wall portion 10. the side wall portion 11 which is set, a top wall 12 which extends toward the upper end of the side wall portion 11 to the rails inwardly, and a hanging portion 13 which is hanging from the tip of the top wall portion 12 Yes and, the upper rail 2 includes a standing portion 20 for supporting the sheet at the top made by continuous plate pair provided with a predetermined spacing in the upper, the lower end of the plate material upstanding plate portion 20 extending toward the rail outward A bottom plate portion 21 is positioned in the groove formed in the front end of the bottom plate portion 21 a tip is erected upward from the side wall portion 11 and the top wall 12 of the lower rail 1 and the hanging portion 13 and a side plate portion 22, the stopper, said side walls so that there is established a base in lower position a lower end, the tip protrudes toward the inner wall of the front SL side wall portion 11 into the rail interior of the hanging portion 13 A protrusion 19 (190a) provided on the portion 11, and the locking portion is provided so as to protrude outward from the edge of the bottom plate portion 21 or the side plate portion 22 toward the outer side of the rail. Since the seat slide device is characterized in that the projecting piece 29 (290) is positioned in a range that can be locked with 190a), it is possible to meet the demand for easy assembling work. That is, even after assembling the upper rail 2 to the lower rail 1, the outer wall surface of the side wall portion 11 of the lower rail 1 is exposed, the site below the lower end of the hanging portion 13 of the inner wall surfaces, the lower rail 1 Since the upper rail 2 can be exposed by appropriately moving the upper rail 2 in the rail longitudinal direction, the work of providing the stopper 19 (190) at this portion can be easily performed.

Configuration 2, in the configuration 1, the stopper are the seat slide device, characterized in that the protruding pieces 19 formed by cutting and bending the front SL side wall portion 11 formed, in addition to the effects of configuration 1 Thus, there is an effect that a specific configuration can be provided. Further, the projecting piece 19 of the configuration 2 can be prevented from projecting from the inner surface of the outer side wall portion 11 before the upper rail 2 is assembled to the lower rail 1 and can be pressed and projected after the assembly. According to such a procedure, not only the work is easy, but there is also an effect that the process of assembling the upper rail 2 to the lower rail 1 can be automated.

Sectional drawing (the sectional view on the AA line in FIG. 2) of the seat slide apparatus of 1st Embodiment. The principal part perspective view of the seat slide device of a 1st embodiment. Sectional drawing of the principal part of the seat slide apparatus of 2nd Embodiment. The perspective view seen from the inner wall surface side of the outer side wall part 11 of the lower rail of the seat slide apparatus of 2nd Embodiment. The perspective view seen from the outer wall surface side of the outer side wall part 11 of the lower rail of the seat slide apparatus of 2nd Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view (a cross-sectional view taken along line AA in FIG. 2) of the seat slide device according to the first embodiment, and FIG. FIG. 3 is a sectional view of the main part of the seat slide device according to the second embodiment, and FIGS. 4 and 5 are perspective views of the lower rail. In the following, “outer” means the left side in FIG. 1 and FIG. 3, and “inner” means the right side.

(1)
First Embodiment The illustrated seat slide apparatus includes a space (groove) surrounded by a bottom wall portion 10 of the lower rail 1 and two side wall portions (an outer side wall portion 11 and an inner side wall portion 16) which are erected from both edges thereof. Is a device that accommodates the lower portion of the upper rail 2 in the shape space) and supports the lower rail 2 so as to be movable in the rail direction. In order to enable this movement, rollers 41 and balls 42 and 43 are provided in the gap between the upper rail 2 and the lower rail 1. For example, a roller 41 is provided between the bottom plate portion 21 and the bottom wall portion 10. Further, a ball 42 is provided between the outer side wall portion 11 and the top wall portion 12 and a portion near the tip of the side plate portion 22, and a ball 43 is provided between the hanging portion 13 and the bent portion of the side plate portion 22. Is provided.

In addition, the illustrated seat slide device includes a lock mechanism 3 between the upper rail 2 and the lower rail 1, whereby the movement of the upper rail 2 can be stopped and locked at a desired position. That is, the protruding portion 31 of the lock member 30 (spring formed by bending a linear elastic body) of the lock mechanism 3 is connected to the through hole of the standing plate portion 20 of the upper rail 2 and the lower end of the hanging portion 13 of the lower rail 1. A mechanism is provided for locking the movement of the upper rail 2 relative to the lower rail 1 by being inserted into a notch formed at equal intervals in the longitudinal direction and through a through hole formed in the side plate portion 22 of the upper rail 2. The lock release is performed by pushing down the vicinity of the center of the lock member 30 (near the center in the direction orthogonal to the paper surface of FIG. 1) downward to separate the protrusion 31 downward from the notch at the lower end of the hanging part 13. .

  The lower rail 1 includes a bottom wall portion 10 installed parallel to the floor surface, an outer side wall portion 11 erected vertically from an outer edge of the bottom wall portion 10, and approximately 90 degrees from the upper end of the outer side wall portion 11. It has a ceiling wall portion 12 that is bent and extended toward the inner side, and a hanging portion 13 that is bent downward by approximately 90 degrees from the tip of the ceiling wall portion 12 and is obliquely inclined from the inner side edge of the bottom wall portion 10. An inner side wall portion 16 that is bent toward the upper inner side and has a maximum height lower than the lower end of the hanging portion 13 and a height that secures a predetermined height difference from the lower end, and from the tip of the inner side wall portion 16 A second ceiling wall portion 17 that extends to the outer side with a height that is lower than the lower end of the hanging portion 13 and secures a predetermined height difference from the lower end, and approximately 90 from the tip of the second ceiling wall portion 17. It has the 2nd drooping part 18 extended and bent to the bottom wall part 10 side (downward side). The lower rail 1 composed of these parts can be manufactured by bending a single metal plate. After the bending, in the first embodiment, in the vicinity of both ends of the outer side wall 11 in the longitudinal direction of the rail and lower than the lower end of the hanging part 13, the inner side from the inner wall surface of the outer side wall 11 is formed. The protruding piece 19 is cut and raised so as to protrude to the right (in FIG. 1, right side). To be precise, first, a protruding piece is cut and formed so as to protrude from the outer wall surface of the outer side wall 11 to the outer side (left side in FIG. 1), and after the upper rail 2 is assembled to the lower rail 1, The protruding piece is pressed from the outer side (left side in FIG. 1) to the inner side (right side in FIG. 1) to protrude from the inner wall surface of the outer side wall 11 to the inner side, thereby forming a protruding piece (stopper) 19. It is sufficient that the position in the height direction of the stopper (for example, the protruding piece 19 or the like) is lower than the lower end of the hanging part 13 during the above-described processing. It does not have to be lower. The part after processing corresponding to the part at the time of processing that satisfies such a requirement is the “installation base” in the claims. This also applies to a second embodiment described later.

The upper rail 2 is composed of two vertically stacked plate members 20a and 20b, and an upper plate 20 that supports a sheet (not shown) at the upper portion and an outer plate that is one of the two plate members of the vertical plate 20. A bottom plate portion 21 that is bent approximately 90 degrees from the lower end of the side plate member 20a and extends to the outer side, and an outer side wall portion 11 and a top wall portion 12 of the lower rail 1 that are erected upward from the tip end of the bottom plate portion 21 Bent approximately 90 degrees from the lower end of the inner plate 20b, which is the other of the two plates of the side plate 22 and the standing plate 20, which are located in a groove (lower open groove) constituted by the hanging part 13 A second bottom plate portion 26 extending to the inner side, and an obliquely upward from the tip of the second bottom plate portion 26, the tip of which is the inner side wall portion 16, the second top wall portion 17, and the second hanging portion of the lower rail 1. 2nd located in the groove | channel (lower open groove | channel) comprised with the part 18 And a plate portion 27. Each plate material of the upper rail 2 composed of these parts can be manufactured by bending a single metal plate. Further, after the formation of the folds, at the two approximately central portions of the rail in the longitudinal direction, the top end portion of the bottom plate portion 21 is cut up and bent upwardly after being bent upward in the obtuse angle in FIG. A piece 29 is formed. That is, the locking portion 29 is formed.
When the locking portion 29 is locked by the protruding piece 19, the movement of the upper rail 2 is restricted at that position.
Note that the position of the protruding piece (locking portion) 29 does not necessarily have to be cut from the outer side tip of the bottom plate portion 21; for example, it is cut from the middle of the side plate portion 22 as in the second embodiment described later. It may be formed by raising (see 290 in FIG. 3) or by attaching a separate member. In short, the engaging portion 29 may be provided at a position where it can be engaged with the stopper 19.
In addition, the outer side plate member 20a and the inner side plate member 20b use two different plate members in this embodiment, but instead of this, for example, one plate member is bent and not shown in FIG. It may be a continuous one above.
The outer side plate member 20a and the inner side plate member 20b are in close contact with each other in the illustrated example, but they may have a predetermined gap.

In the above configuration, the front end side of the side plate portion 22 is appropriately bent and appropriately inclined so that the balls 42 and 43 can be supported.
Further, in the above configuration, the extending width of the bottom plate portion 21 of the upper rail 2 is wider than the extending width of the second bottom plate portion 26. Similarly, the virtual surface (surface obtained by extending the boundary surface between the plate members 20a and 20b downward in FIG. 1) of the upright plate portion 20 of the upper rail 2 downward is the width of the lower portion of the bottom plate portion 21. The bottom wall portion 10 of the lower rail 1 is divided so as to be wider than the width of the lower side portion of the two bottom plate portion 26. In other words, the portion on the right side of the boundary of the standing plate portion 20 in FIG. 1 is configured to be smaller than the left portion with respect to the width, and is lightweight.

(2)
2nd Embodiment 2nd Embodiment is not from the point which comprised the stopper by the rivet 190 which fixes the foot bracket 5 to the lower rail 1, and from the front | tip of the outer side of the baseplate part 21 of the upper rail 2, This is different from the first embodiment in that the protruding piece 290 is cut and raised from the middle of the side plate portion 22 to form a locking portion. Since the configuration of other parts is the same as that of the first embodiment, the same parts are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIGS. 3 to 5, in the second embodiment, a rivet 190 that penetrates the outer side wall portion 11 of the lower rail 1 is used to provide a standing plate portion of the foot bracket 5 on the outer surface side of the outer side wall portion 11. 51 is fixed. Reference numeral 54 denotes a base portion of the foot bracket 5, and this portion is attached to the floor surface of the automobile. Reference numeral 53 denotes a lower plate portion, and reference numeral 52 denotes an upper plate portion. The lower plate 1 and the lower plate portion 53 are sandwiched between the upper plate portion 52 and the lower plate portion 53 together with the rivets 190 and are firmly attached. The rivet 190 is pressed and caulked from both sides (the inner wall surface side of the outer side wall portion 11 and the outer surface side of the foot bracket upright plate 51) after being fixed.

A portion 190 a protruding from the inner wall surface of the outer side wall portion 11 in the rivet 190 is a portion that functions as a stopper. That is, this portion 190a acts to lock the protruding piece 290 cut and raised from the middle of the side plate portion 22 of the upper rail 2 to the outer side (left side in FIG. 3) to restrict the movement of the upper rail 2. To do.
In addition, about the height in which the rivet 190 is provided, and the height in which the projection piece 290 is provided, the same argument as the projection piece 19 and the projection piece 29 holds.

Moreover, in the example shown in FIG. 4, the lower end of the hanging part 13 is notched, and the rivet 190 is provided in the site | part exposed by this notch. In other words, the rivet 190 is provided at a position higher than the original lower end of the hanging part 13. In this specification, in such a case, the height of the end surface (end surface of the notch) formed by notching the original lower end of the drooping portion 13 is referred to as “the height of the drooping portion 13”. Shall. In other words, the portion on the inner wall surface side (right side in FIGS. 1 and 3) of the outer side wall portion 11 that should be provided with the stopper 19 does not have to be hidden by the hanging portion 13.
In the above description, a rivet for attaching the foot bracket 5 as a rivet has been described. However, the present invention is not limited to this, and a configuration in which only other rivets or rivets are attached may be used.

DESCRIPTION OF SYMBOLS 1 Lower rail 10 Bottom wall part 11 Outer side wall part 12 Top wall part 13 Bottom part 16 Inner side wall part 17 Second top wall part 18 Second bottom part 19 Stopper / projection piece 190 Rivet 190a Part 2 functioning as a stopper for a rivet 2 Upper rail 20 Standing plate portion 20a Outer side plate material 20b Inner side plate material 21 Bottom plate portion 22 Side plate portion 26 Second bottom plate portion 27 Second side plate portion 29 Projection piece (locking portion)
290 Projection (locking part)
3 Lock mechanism 30 Lock member / spring 31 Engagement protrusion 41 Roller 42 Ball 43 Ball 5 Foot bracket 51 Standing plate 52 Upper plate 53 Lower plate 54 Base

Claims (2)

The upper rail is supported on the lower rail so as to be movable in the rail direction, and the upper rail moving range is regulated by locking the locking portions provided on the upper rail by stoppers disposed near both ends in the longitudinal direction of the lower rail. A seat slide device,
The lower rail includes a bottom wall portion forming the rail bottom, which is extended toward the edge of the bottom wall and the side wall portion which is erected upward from the upper end of the side wall portion to the rail inner top wall And a hanging part that hangs down from the tip of the top wall part,
The upper rail is composed of a pair of plate members provided at a predetermined interval on the upper side , a vertical plate portion that supports the seat at the upper portion, and a lower end of the plate material of the vertical plate portion toward the outside of the rail. a bottom plate portion extending Te, and the side plate portion thereof tip erected from the front end of the bottom plate portion upward is positioned in the groove formed in the side wall and the top wall portion and the hanging portion of the lower rail Have
The stopper, the installed base to a position lower than the lower end of the hanging portion is there is a projection provided on the side wall such that the tip protrudes toward the inner wall of the front SL side wall portion to the rail inwardly,
The locking portion is a protruding piece that is provided so as to protrude from the edge of the bottom plate portion or the side plate portion toward the outside of the rail , and whose tip is positioned in a range that can be locked with the stopper.
A seat slide device characterized by that. In claim 1,
The stopper is a projection piece formed by cutting and bending the front SL side wall portion formed,
A seat slide device characterized by that.

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