JP5276918B2 - Slide rail device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular slide rail device which can easily execute assembling work as the vehicular slide rail device by improving a locking device, and is easily manufactured while reducing cost. <P>SOLUTION: A locking device 4 incldues a holding member 5 which is mounted to an upper rail 3, a shaft hole 11 opened with an insertion port 12 at an edge of the holding member 5, a locking member 6 which includes a projection 17 inserted into the shaft hole 11 from the insertion port 12, and is suitable for the holding member 5 in an oscillating manner around the projection 17, a locking claw 18 which is integrated with the locking member 6 and engaged with a locking groove 31 at a lower rail 2 side, and a torsional spring 7. The torsional spring 7 urges the locking member 6 in a direction in which the projection 17 of the locking member 6 is pushed into the shaft hole 11 from the insertion port 12 of the holding member 5, and the locking claw 18 is engaged with the locking groove 31. <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 this Patent Document 1, “the storage rail rotation hole of the lock member and the shaft support portion positioned in front of and behind this storage rotation hole must be directly formed in the upper rail”. The work itself for directly forming the rotation hole and the shaft support is considered to be very costly and laborious. 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”. The lock mechanism can be engaged with and disengaged from the lock hole by rotating around the rotation axis with 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 In addition, the structure is such that the support shaft is supported by the folded-back portion that is recessed by folding the upper rail inwardly, and thus has a very complicated structure. 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.

  That is, the object of the present invention is to improve the lock device, in particular, so that the assembly work as a vehicle slide rail device can be easily performed, and can be manufactured easily and 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 to be described later. A vehicular slide rail device 1 provided with a locking device 4 for restricting the sliding between the lower rail 2 and the upper rail 3 on the seat side,
The locking device 4 includes:
A holding member 5 attached to the upper rail 3;
A shaft hole 11 that opens with an insertion port 12 at the edge of the holding member 5;
A lock member 6 having a protrusion 17 inserted into the shaft hole 11 from the insertion port 12 and attached to the holding member 5 so as to be swingable about the protrusion 17;
A lock claw 18 formed integrally with the lock member 6 and capable of engaging with the locking groove 31 on the lower rail 2 side;
The torsion spring 7 includes a torsion spring 7 in a direction in which the protrusion 17 of the lock member 6 is pushed into the shaft hole 11 from the insertion port 12 of the holding member 5 and the lock claw 18 is locked. The lock member 6 is urged in a direction to be engaged with the groove 31.

Further, the invention according to claim 1, in a vehicle dual slide rail device 1, the torsion spring 7, the base end side is attached to the upper rail 3, the tip side of the hook portion 21, and the biasing force of Claim 1 applied The hooking portion 21 is hooked in the hooking hole 19 provided in the lock member 6 in a state where the hooking member is twisted in the direction in which the hooking member is twisted.

Invention according to claim 2, a vehicle slide rail device as claimed in claim 1, torsion spring 7, by folding the base end side of the single wire into a U-shape, widening the base end side In addition to the provision of the portion 20, the extended portion 20 is provided with the protruding portion 22, and the hook portion 21 is provided by bending the distal end side into a hook shape, and the protruding portion 22 is elastically engaged with the fixing hole 23 of the upper rail 3. In addition, the hook portion 21 is engaged with the hook hole 19.

  According to the first aspect of the present invention, the projection 17 of the lock member 6 is urged by the spring force of the torsion spring 7 in the direction in which the projection 17 is pushed into the shaft hole 11 of the holding member 5. And the lock claw 18 of the lock member 6 engages with the locking groove 31 of the lower rail 2 and locks. Therefore, the assembling work as the vehicle slide rail device can be easily performed, and can be manufactured easily and at a reduced cost.

Furthermore, according to the first aspect of the present invention, the above-described effects can be obtained by assembling the kneading spring 7 in a twisted state.

According to the invention described in claim 2 , the base end side of one wire is folded in a U shape to form the expanded portion 20 and attached to the upper rail 3, and the hook portion 21 is bent by bending the distal end side. It can be formed and engaged with the hook hole 19 of the lock member 6.

  FIG. 1 shows a side view of a vehicular slide rail device 1 according to the present invention. FIG. 2 is a partially exploded perspective view showing that the locking device 4 is provided between the upper rail 3 and the lower rail 2. FIG. 3 shows a perspective view of the locking device 4. FIG. 4 is a view showing that the locking device 4 is provided on the upper inner surface of the upper rail 3. FIG. 5 shows an exploded perspective view of the locking device 4.

  As shown in FIG. 1, the vehicle slide rail device 1 according to the present invention is provided between the vehicle seat S and the vehicle body M so that the vehicle seat S can slide in the front-rear direction (arrow direction). It is a device to support.

  As shown in FIG. 2, the vehicle slide rail device 1 is a lock device that regulates sliding between a vehicle body side lower rail 2 and a seat S side upper rail 3 that are assembled to be slidable in the front-rear direction. 4 is provided. The vehicle slide rail device 1 can be provided on both the left and right sides of the vehicle seat S.

  As shown in FIG. 3, the lock device 4 includes a holding member 5, a lock member 6, and a torsion spring 7. As shown in FIG. 4, the holding member 5 is attached to the upper inner surface of the upper rail 3 by a stop rivet or the like. As shown in FIG. 5, the holding member 5 includes a bridge portion 8, a pair of arm portions 9 that extend from both ends of the bridge portion 8 in a substantially orthogonal direction, and a pair of arm portions 9 that extend from each arm portion 9 in a substantially orthogonal direction. The mounting portion 10 is provided with a rivet hole, and is attached to the upper inner surface of the upper rail 3 by a stop rivet or the like as described above. The arm portion 9 is provided with a shaft hole 11, and the shaft hole 11 has an insertion port 12 that opens at the edge of the holding member 5.

  The lock member 6 is provided with a bridge portion 13 and two arm portions 14 extending in a direction substantially orthogonal from both sides of the bridge portion 13, and one arm portion 14 is further extended to provide a rising portion 15. In addition, a pressed portion 16 is provided near the tip of the rising portion 15. A projection 17 is provided on the outer side of the arm portion 14. A plurality of lock claws 18 project from the bridge portion 13 and a hook hole 19 is provided. The lock member 6 is provided so as to be swingable on the holding member 5 by pushing the protrusion 17 into the shaft hole 11 from the insertion port 12 of the shaft hole 11 of the holding member 5. .

  As shown in FIG. 5, the torsion spring 7 includes an expanded portion 20 formed by folding the proximal end side of one wire, and a hook portion 21 formed by bending the distal end side into a hook shape. Constructed, the expanding portion 20 is formed with protruding portions 22 protruding on both sides. Then, as shown in FIG. 4, the protruding portion 22 of the torsion spring 7 is fitted into the fixing hole 23 (only one is shown) of the upper rail 3, so that the hook portion 21 is attached to the upper rail 3. The hook 21 of the torsion spring 7 is hooked in the hook hole 19 of the lock member 6 in a state where a spring force is applied to the torsion spring 7 by twisting.

  6 shows a cross-sectional view taken along the line AA of FIG. As shown in FIG. 6, the upper rail 3 includes an upper wall 24, a side wall 25, and a rising bent wall 26 that rises from the lower end of the side wall 25. The lower rail 2 includes a lower wall 27, a side wall 28, and a falling bent wall 29 that falls from the upper end of the side wall 28. The upper rail 3 is slidable in the longitudinal direction (the direction perpendicular to the paper surface in FIG. 6) with respect to the lower rail 2.

  As shown in FIG. 4, a claw avoiding groove 30 for avoiding the lock claw 18 of the lock member 6 when the locking device 4 is attached to the upper rail 3 is formed in the upper rail 3. As shown in FIGS. 6 and 2, the lower rail 2 is formed with a locking groove 31 for engaging the lock claw 18 of the lock member 6. A plurality of locking grooves 31 are formed in the lower rail 2 over the longitudinal direction. The upper pawl 3 is positioned with respect to the lower rail 2 by engaging the locking claw 18 of the locking device 4 with the locking groove 31 at an arbitrary position of the lower rail 2. In FIG. 6, reference numeral 35 denotes a seat connecting pin for attaching the vehicle seat S to the upper rail 3.

  FIG. 7 shows the mutual relationship between the lock device 4 and the operation lever 32. An operation piece 33 is provided on the base end side of the operation lever 32 so as to be swingable about the fulcrum member 34. It is possible. The fulcrum member 34 is provided on a seat frame (not shown).

Next, assembly will be described.
a. As shown in FIG. 4, the opening side of the upper rail 3 is arranged upward on the jig.
b. A lock member 6 is disposed in the upper rail 3.
c. Thereafter, the holding member 5 is assembled so that the protrusion 17 of the lock member 6 and the shaft hole 11 of the holding member 5 are engaged. Therefore, the holding member 5 and the lock member 6 can be assembled without expanding the holding member 5.

  Next, as shown in FIG. 4, the base end side of the torsion spring 7 is fitted into the fixing hole 23 of the upper rail 3 to fix the base end side of the torsion spring 7 to the inner surface of the upper rail 3. Next, the torsion spring 7 is twisted and the hook portion 21 is hooked into the hook hole 19 of the lock member 6. At this time, the direction in which the protrusion 17 of the lock member 6 is pushed into the shaft hole 111 by selecting the twisting direction of the torsion spring 7 and the direction in which the lock pawl 18 is urged in the direction indicated by the arrow α in the figure. The spring force is generated. By urging the lock claw 18 in this manner, as shown in FIG. 6, the lock claw 18 is engaged with the locking groove 31 of the lower rail 2, and the upper rail 3 is positioned with respect to the lower rail 2, so that the vehicle The working sheet S is positioned.

  In the state shown in FIG. 1, when the operation lever 32 is pulled upward, the operation piece 33 provided on the proximal end side of the operation lever 32 is moved to the pressed portion 16 of the lock member 6 as shown in FIG. 7. And the lock claw 18 is pushed down, and the lock claw 18 comes out of the locking groove 31 of the lower rail 2 against the spring force of the torsion spring 7 from the state shown in FIG. Slidable in the longitudinal direction.

  Then, after adjusting the position of the vehicle seat S by sliding the upper rail 3 with respect to the lower rail 2, when the operation lever 32 is pushed down in the state shown in FIG. 7, the lock claw 18 of the lock member 6 causes the spring of the torsion spring 7. As shown in FIG. 6, the force engages with the locking groove 31 of the lower rail 2 to position the upper rail 3 with respect to the lower rail 2, thereby positioning the vehicle seat S.

  As explained above, the spring force of the torsion spring 7 biases the projection 17 of the lock member 6 in the direction of fitting into the shaft hole 11 of the holding member 5, and the assembly of the lock member 6 and the holding member 5 is maintained. In addition, the locking claw 18 of the locking member 6 is fitted into the locking groove 31 of the lower rail 2 to position the vehicle seat S.

  It should be noted that the present invention is not limited to the embodiment described above, and various modifications can be made within the scope described in the claims.

It is a side view of a slide rail device for vehicles. It is a partial exploded perspective view of a slide rail device for vehicles. It is a perspective view of a locking device. It is a perspective view of the state where the locking device was attached to the upper rail. It is a disassembled perspective view of a locking device. It is the sectional view on the AA line of FIG. It is a figure which shows the mutual relationship of a locking device and an operation lever.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle slide rail apparatus 2 Lower rail 3 Upper rail 4 Lock apparatus 5 Holding member 6 Lock member 7 Torsion spring 11 Shaft hole 12 Insertion hole 18 Lock claw 21 Hook part 22 Expanding part 23 Fixed hole 31 Locking groove

Claims (2)

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 is
A holding member attached to the upper rail;
A shaft hole that opens with an insertion port at the edge of the holding member;
A lock member that has a protrusion inserted into the shaft hole from the insertion port, and is attached to the holding member so as to be swingable around the protrusion;
A lock claw that is integrally formed with the lock member and can engage with the locking groove on the lower rail side,
A torsion spring ,
The torsion spring biases the lock member in a direction in which the protrusion of the lock member is pushed into the shaft hole from the insertion port of the holding member and the lock claw is engaged with the locking groove. and it is,
The torsion spring is attached to the upper rail on the base end side, and the front end side becomes a hook portion, and the hook portion is hooked in a hook hole provided in the lock member in a state where the biasing force is applied. A slide rail device for a vehicle. The torsion spring is formed by folding the base end side of one wire into a U-shape, thereby providing an expanded portion on the base end side and a projecting portion on the expanded portion, while hooking the distal end side by bending the distal end side. Set up a section,
2. The vehicle slide rail device according to claim 1, wherein the protrusion is elastically engaged with a fixing hole of the upper rail, and the hook is engaged with the hook.

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