JP2010125955A - Slide rail apparatus for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide rail apparatus for a vehicle easily mounted and manufactured as a slide rail apparatus for a vehicle and easily manufactured at low cost by improving a locking device. <P>SOLUTION: The locking device 30 includes: a pair of holding members 21 integrated with an upper rail 20 and projecting in the upper rail 20; a locking member 31 mounted between the holding members 21 with a supporting arm 32 and swingable in the upper rail 20; a locking pawl 33 integrated with the locking member 31 and engaging with a locking groove 11 on a lower rail 10 side; and a spring means 40 biasing the locking member 31 so as to make the locking pawl 33 swing in the engaging direction. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a slide rail device that adjusts the position by sliding a vehicle seat in the front-rear direction, and more particularly to a vehicle slide rail device that has an improved locking mechanism.

  In recent vehicles, a vehicle slide rail device is provided on the vehicle seat so that the front-rear position of the vehicle seat can be adjusted. Such a vehicular slide rail device must be capable of easily adjusting the position of the vehicular seat, and at the same time having a high rigidity at the time of fixing so as to ensure sufficient safety in the event of a collision accident or the like. Don't be.

Of course, with respect to the slide rail device for a vehicle that is important for the vehicle, it is of course important to facilitate the manufacture and reduce the manufacturing cost, as well as the convenience and safety of use as described above. Such improvements have also been proposed in Patent Document 1 and Patent Document 2.
JP 2006-290029 A, abstract JP 2007-91052 A, Summary

  The above-mentioned Patent Document 1 aims to “obtain a seat track device that can support a lock member on an upper rail without requiring a separate member and has a reduced number of parts and reduced weight and assembly cost”. A “seat track device” has been proposed.

  And the "seat track device" of this patent document 1 "is formed directly on the upper rail with a storage rotation hole of the lock member and a shaft support portion positioned before and after the storage rotation hole. It is considered that the above object can be achieved because the lock member is fixed to the hinge pin that rotatably supports both ends of the support portion.

  However, in the technique of Patent Document 1, as shown in FIG. 9, “the storage rail rotation hole of the lock member and the shaft support portions positioned before and after the rotation rotation hole are directly formed on the upper rail”. It is considered that the operation itself of directly forming these rotation holes and the shaft support portion in the upper rail is very costly and troublesome. In addition, the above-mentioned “both ends of the hinge pin are rotatably supported by the front and rear shaft support portions”, which is considered to be very costly and labor-intensive.

  On the other hand, the “vehicle seat slide device” of Patent Document 2 is made for the purpose of “providing a vehicle seat slide device capable of realizing a reduction in manufacturing cost and saving space”. As shown in FIG. 10, “The lock mechanism rotates around the rotation axis, a plurality of lock holes arranged in parallel in the longitudinal direction of the lower rail, a support shaft having a rotation axis extending in the longitudinal direction of the upper rail, and the rotation axis. And a lock lever that can be engaged and disengaged with respect to the lock hole, and the support shaft is supported by a folded portion that is recessed by folding the upper rail inward, so that the structure is very complicated. Has become. That is, it is considered that the technique of Patent Document 2 is very costly and labor-intensive for the manufacturing operation itself.

  Therefore, the present inventors can easily manufacture this kind of vehicle slide rail device as having sufficient necessary functions, and how to reduce the manufacturing cost, As a result of various studies on the above, the present invention has been completed.

  In other words, the object of the present invention is to improve the lock device in particular, so that the manufacturing and assembling work as a vehicle slide rail device can be easily performed, and the manufacturing is easily performed at a reduced cost. An object of the present invention is to provide a vehicular slide rail device.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below
“A vehicle slide rail device 100 in which a lock device 30 is provided between the lower rail 10 on the vehicle body side and the upper rail 20 on the seat side, which are assembled so as to be slidable with each other.
Locking device 30
A pair of holding members 21 that are integral with the upper rail 20 and project into the upper rail 20;
A lock member 31 attached between the holding members 21 by a support arm 32 and capable of swinging in the upper rail 20;
A lock claw 33 formed integrally with the lock member 31 and capable of engaging with the locking groove 11 on the lower rail 10 side;
The vehicle slide rail device 100 is characterized in that the lock claw 33 is provided with a resilient means 40 for biasing the lock member 31 so as to swing in the engagement direction.
It is.

  That is, as shown in FIGS. 1 and 2, the vehicle slide rail device 100 according to the present invention slides between a vehicle body side lower rail 10 and a seat side upper rail 20 which are slidably assembled with each other. However, the lock device 30 itself has been devised. In the general vehicle seat 200, the left and right symmetrical vehicle slide rail devices 100 are arranged at both lower portions thereof, and each vehicle slide rail device 100 is an important component of the present invention. There is a locking device 30 that is symmetrical.

  First, as shown in FIGS. 2 and 4, the lock device 30 is integrated with the upper rail 20, a pair of holding members 21 protruding into the upper rail 20, and a lock attached to the holding member 21 so as to be swingable. Member 31. As shown in FIG. 4, the holding member 21 and the lock member 31 are shaped so that the lock member 31 can be incorporated into the holding member 21, and can be easily integrated as shown in FIG. It is.

  Each holding member 21 may be a separate member welded to the inner surface of the upper rail 20, but may be stamped at the same time as the upper rail 20 is manufactured as described in the best mode described later. . That is, each holding member 21 may be formed by punching a part of the upper surface of the upper rail 20 and bending it into the upper rail 20 as shown in FIGS. 4 and 7. It may be formed at the same time.

  When the holding member 21 and the lock member 31 are assembled, the lock member 31 can swing with respect to each holding member 21 on the upper rail 20 side, and a resilient means 40 (a best mode to be described later) is provided therebetween. Then, the torsion spring) is positioned and always biased so as to rotate in a certain direction. Then, the lock claw 33 that can be engaged with the locking groove 11 on the lower rail 10 side is formed in the lock member 31. In other words, the lock claw 33 only needs to move so as to be able to engage with the locking groove 11 on the lower rail 10 side.

  That is, in the vehicle slide rail device 100 completed by attaching the lock device 30, the lock claw 33 is engaged with the locking groove 11 on the lower rail 10 side, and this engagement state is the same as that of the upper rail 20. It is maintained by a bullet means 40 positioned between the lock member 31.

  In order to release the engagement state of the lock claw 33 with respect to the locking groove 11, the lock member 31 must be rotated against the elastic force of the elastic means 40. That is, the lock member 31 itself is pressed by the operation piece 220 operated by the operation lever 210.

  Needless to say, the locking device 30 configured as described above is configured to be bilaterally symmetric so that it can be applied to the left and right vehicle slide rail devices 100. As shown in FIG. 3, they are operated simultaneously by a single operating lever 210. The operation lever 210 is provided at the rear end of the member that is swung by the fulcrum member 230 on the side surface of the vehicle seat 200 by pulling it up at the front lower part of the vehicle seat 200. As a result, the lock device 30 is unlocked.

  Now, the locked state and unlocking operation of the vehicle slide rail device 100 by the lock device 30 configured as described above will be described below. First, the locked state will be described with reference to FIG. 8, the lock claw 33 is engaged in the locking groove 11 on the lower rail 10 side, and the lock member 31 is attached in the locking direction by the resilient means 40, as shown in FIG. The locked state is maintained.

  In order to release the above lock state, a user sitting on the vehicle seat 200 raises the operation lever 210 upward. Then, as can be understood from FIG. 2, the operation piece 220 moves downward about the fulcrum member 230 and pushes down the lock member 31 constituting the lock device 30 against the urging force of the elastic means 40. It will be. As a result, the lock member 31 rotates in the locking release direction. As a result, each lock claw 33 swings downward and leaves the locking groove 11, that is, the lock is released.

  Of course, when the user releases his / her hand from the operation lever 210, the operation lever 210 returns to the original position, and the operation piece 220 leaves the pressed portion 34 and does not press it. Then, the lock member 31 returns to the state shown in FIG.

  As described above, the vehicular slide rail device 100 can be configured by the three points of the locking device 30, that is, the holding member 21, the locking member 31, and the impacting means 40 that are integrally formed with the upper rail 20. The number of parts can be reduced and the processing step can be omitted, resulting in a reduction in cost.

  In particular, when the lock device 30 is configured, first, the holding members 21 are formed on the upper rail 20 side, but these holding members 21 are formed simultaneously by punching when the upper rail 20 is manufactured. Easy to form. In addition, each holding member 21 that supports the lock member 31 in a swingable manner uses a part of the upper rail 20 as described in the best mode described later, that is, is integral with the upper rail 20. If so, the lock member 31 is supported in a stable state without any displacement of the lock member 31 or a change in the swing axis.

  In assembling the lock device 30, the lock member 31 is inserted between the holding members 21. As a result, the lock member 31 is slidably coupled between the holding members 21 of the upper rail 20, and this time, as shown in FIG. 5B, FIG. 6, and FIG. The one end of the elastic means 40 is engaged with the lock member 31 and the other end is brought into contact with the inner surface of the upper rail 20 while resisting the biasing force. The elastic means 40 is a torsion spring, and one end thereof is engaged with the lock member 31. Therefore, the lock member 31 is always biased to the position shown in FIG. Thus, the attachment of the lock device 30 to the upper rail 20 is completed.

  After that, the vehicle slide rail device 100 is completed by assembling the upper rail 20 to which the lock device 30 is attached to the lower rail 10. However, when the assembly is performed, the lock claw 33 is moved to the lower rail 10 side. The upper rail 20 may be simply inserted into the lower rail 10 without being locked in the locking groove 11.

  Therefore, the vehicle slide rail device 100 can be easily manufactured and assembled, and can be manufactured easily and at a reduced cost.

Moreover, in order to solve the said subject, the means which the invention which concerns on Claim 2 took about the slide rail apparatus 100 for vehicles of the said Claim 1,
“The front ends of the holding members 21 are bent so as to open to the outside”
It is.

  That is, in the vehicle slide rail device 100 according to the second aspect, the leading end portions of the holding member 21 of the lock device 30 which is an important component thereof are bent so as to open outward as shown in FIG. It was.

  In particular, when assembling the locking device 30, the locking member 31 is inserted from the lower side of the upper rail 20, and the locking portions 32 a formed on the support arms 32 protrude into the upper rail 20. The lock member 31 is inserted between the holding members 21 so as to be engaged in the support holes 21b of the holding member 21, but this insertion operation can be easily performed. This is because the distal ends of the holding members 21 are bent so as to open to the outside, so that the support arms 32 can be inserted smoothly even if the locking portions 32a are formed to protrude.

  Therefore, the vehicular slide rail device 100 according to the second aspect of the invention can perform the same function as that of the first aspect of the invention and can easily insert the lock member 31 into each holding member 21 of the upper rail 20. It is.

Furthermore, in order to solve the above-mentioned problem, the means taken by the invention according to claim 3 is about the vehicle slide rail device 100 according to claim 1 or 2,
“The tapered portion 32b is formed outside the distal end portion of the support arm 32 of the lock member 31”.
It is.

  That is, in the vehicle slide rail device 100 according to the third aspect, on the outer side of the distal end portion of the support arm 32 of the lock member 31 of the lock device 30 which is an important component thereof, (b) of FIG. As shown in FIG. 4, a tapered portion 32b is formed.

  In assembling the locking device 30, as described above, the locking member 31 is inserted from the lower side of the upper rail 20, and the locking portions 32 a formed on the respective support arms 32 project into the upper rail 20. The lock member 31 is inserted between the holding members 21 so as to be engaged in the support holes 21b of the holding members 21. However, the inserting operation can be easily performed.

  This is because the tapered portion 32 b is formed outside the distal end portion of the support arm 32 of the lock member 31, so that the locking portion 32 a protrudes from the distal end of the support arm 32 or the distal end of the holding member 21. Even if the bent portion that opens to the outside is not formed, the taper portion 32b guides the insertion of each support arm 32, so that the support arm 32 can be smoothly inserted between the holding members 21. It is.

  Therefore, the vehicular slide rail device 100 according to the third aspect exhibits the same function as that of the first or second aspect and can easily insert the lock member 31 into each holding member 21 of the upper rail 20. It is a thing.

As described above, in the present invention,
“A vehicle slide rail device 100 in which a lock device 30 is provided between the lower rail 10 on the vehicle body side and the upper rail 20 on the seat side, which are assembled so as to be slidable with each other.
Locking device 30
A pair of holding members 21 that are integral with the upper rail 20 and project into the upper rail 20;
A lock member 31 attached between the holding members 21 by a support arm 32 and capable of swinging in the upper rail 20;
A lock claw 33 formed integrally with the lock member 31 and capable of engaging with the locking groove 11 on the lower rail 10 side;
The lock claw 33 is provided with a resilient means 40 that urges the lock member 31 to swing in the engagement direction.
Thus, it is possible to provide a vehicle slide rail device 100 that can be easily manufactured and assembled, and can be manufactured easily and at a reduced cost. It can be done.

  Next, the invention according to each claim configured as described above will be described with reference to the vehicle slide rail device 100 which is the best mode shown in the drawings. FIG. 1 shows the vehicle slide rail device 100 according to the present invention. A side view of a vehicular seat 200 is shown, and a part of an operation lever 210 that is operated by a user sitting on the vehicular seat 200 protrudes from a lower front portion of the vehicular seat 200.

  In other words, the user who wants to adjust the position of the vehicle seat 200 pulls the operation lever 210 while sitting on the vehicle seat 200, so that the lock device 30 is locked in the vehicle slide rail device 100. The release is performed. When the vehicle seat 200 is appropriately positioned and the user releases the operation lever 210, the lock device 30 automatically returns to the locked state again.

  Further, as shown in FIGS. 2 and 3, an operation piece 220 is coupled to the operation lever 210 of the vehicle seat 200, and the operation piece 220 swings into the upper rail 20 by the fulcrum member 230. It can be attached. In other words, the operation piece 220 moves downward about the fulcrum member 230 when the user pulls up the protruding portion of the operation lever 210, and as shown in FIG. The part is pressed.

  As shown in FIGS. 2 and 3, the vehicle slide rail device 100 includes a lower rail 10 that is fixed to the vehicle body side, an upper rail 20 that is slidably assembled thereto, and a lock device 30 that is attached to the upper rail 20. The lower rail 10 is formed with a number of equal pitches with the locking grooves 11 opening downward. On the other hand, the upper rail 20 is slidably assembled to the lower rail 10 via the rolling ball 23 held by the ball holder, as shown in FIGS. As shown in FIGS. 5 and 6, the seat connecting pin 22 for connecting the vehicle seat 200 is formed so as to protrude.

  In the vehicle slide rail device 100 of the present invention, as shown in FIG. 4, a pair of openings 21 a arranged on the upper surface of the upper rail 20 is formed. These openings 21 a are formed of the vehicle slide rail of the present invention. This is a mark formed by punching the holding member 21 for the lock device 30 which is an important component constituting the rail 100.

  That is, as shown in FIGS. 3 and 4, the holding member 21 constituting the lock device 30 is formed by punching a part of the upper surface of the upper rail 20 and bending it into the upper rail 20. As shown in FIG. 7, the leading end portions of these holding members 21 spread outward (that is, in the respective directions forward and rearward of the upper rail 20 and in the direction in which the holding members 21 move away from each other). It is something that has been bent. Further, a support hole 21b for attaching a lock member 31 to be described later is formed at the end of each holding member 21.

  Further, a lock member 31 as shown in FIG. 4 is fitted into both holding members 21 on the holding member 21 side with respect to the holding member 21 as shown in FIG. In other words, the lock member 31 is attached between the holding members 21 so as to be able to swing within the upper rail 20.

  As shown in FIG. 4, the upper rail 20 on which the holding member 21 is formed has a swing groove 24 formed on a side surface corresponding to a lock member 31 described later. These swing grooves 24 form a space in which each lock claw 33 of the lock member 31 can swing, and engage the locking groove 11 on the lower rail 10 side with the tip of each lock claw 33 in the locked state. It is for making it protrude so that it may match.

  As shown in FIG. 4 and FIG. 7A, the lock member 31 has a pair of front and rear support arms 32. As shown in FIG. The locking portion 32 a is formed so that it can be engaged in a support hole 21 b formed in the holding member 21.

  About each support arm 32, as shown to (b) of FIG. 7, you may implement by forming the taper part 32b in the front-end | tip part outer side. The taper portion 32b is formed on each support arm 32 even if the locking portion 32a is formed to protrude at the tip of the support arm 32 or the bent portion that opens outward is not formed on the tip of the holding member 21. Therefore, the support arm 32 is smoothly inserted between the two holding members 21.

  Of course, as shown in FIG. 4 and the like, the lock member 31 has a plurality of lock claws 33 whose front ends are engaged in the locking grooves 1 on the lower rail 10 side.

  And the elastic means 40 in this best form employs what is called a torsion spring. The torsion spring 40 is made of a metal wire, and has a front end portion 40a extending toward the lock member 31 and a rear end portion 40b formed in a “U” shape in plan view, as shown in FIG. The rear end portion 40b is provided with a pair of locking portions 40c projecting on both sides in the width direction. Then, as shown in FIG. 7, the front end portion 40a is locked in the hole 31a (see FIG. 2) in the central portion of the main body of the lock member 31, and both the locking portions 40c of the rear end portion 40b are connected to both sides of the upper rail 20. By engaging with holes 25 formed in the wall (see FIG. 5B), the resilient means 40, which is a torsion spring, is attached to the inside of the upper rail 20 while urging the lock member.

It is a side view of the vehicle seat which employ | adopted the slide rail apparatus for vehicles which concerns on this invention. It is a disassembled perspective view which shows the relationship between the locking device of the slide rail apparatus for vehicles, and an operation lever. It is a perspective view which shows the positional relationship of a locking member and an operation lever. It is an expansion exploded perspective view of a slide rail device for vehicles on the left. The slide rail device for vehicles is shown, (a) is a side view and (b) is a longitudinal section. It is a top view of the slide rail device for vehicles. FIG. 6 is an enlarged view of a portion of the vehicle slide rail device shown in FIG. 5B, wherein FIG. 5A is a longitudinal sectional view, and FIG. 5B is a further enlarged view of the portion of FIG. It is the fragmentary longitudinal cross-section seen along the 1-1 line in FIG. It is a partial exploded perspective view of the conventional locking device. It is a partial disassembled perspective view of the other conventional locking device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Vehicle slide rail apparatus 10 Lower rail 11 Locking groove 20 Upper rail 21 Holding member 21a Opening 21b Support hole 22 Seat connection pin 23 Rolling ball 24 Oscillating groove 25 Hole 30 Locking device 31 Locking member 32 Arm part 32a Locking part 32b Taper 33 Locking claw 40 Bounce means (torsion spring)
200 Vehicle Seat 210 Operation Lever 220 Operation Piece 230 Supporting Point Member

Claims (3)

A vehicle slide rail device provided with a lock device for restricting sliding between a lower rail on a vehicle body side and a seat side upper rail assembled so as to be slidable from each other,
The locking device;
A pair of holding members that are integral with the upper rail and project into the upper rail;
A locking member attached between these holding members with a support arm and capable of swinging in the upper rail;
A lock claw that is integrally formed with the lock member and can engage with the locking groove on the lower rail side,
A vehicular slide rail device characterized by comprising a resilient means for biasing the lock member so that the lock claw swings in the engaging direction.   The vehicle slide rail device according to claim 1, wherein the front ends of the holding members are bent so as to open outward.   The vehicular slide rail device according to claim 1, wherein a taper portion is formed outside a distal end portion of a support arm of the lock member.

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