JP7208745B2 - Mounting structure and mounting method of lock member - Google Patents

Description

The present invention relates to a structure and method for mounting a lock member on an upper rail.

As a slide rail device for a vehicle seat, a pair of left and right slide rail assemblies and two end arms corresponding to the two slide rail assemblies are provided to connect the two slide rail assemblies. The slide rail assembly includes a lower rail, an upper rail slidably attached to the lower rail, and a lock of the upper rail with respect to the lower rail. and a lever spring for holding the end arm of the operating lever to the upper rail, the lower rail having a side wall portion formed with a plurality of locking teeth, The locking member is an elongated member having spring elasticity, and includes a front end that can be engaged with the end arm of the operating lever, a rear end that is fixed to the upper rail, and locking teeth of the lower rail. The upper rail has an elongated flat plate-shaped base connecting the left and right side walls, and the base of the upper rail has a front end portion near the a first fulcrum protrusion protruding from the lower surface of the base, and a second fulcrum protrusion protruding from the lower surface of the base at a position spaced apart from the first fulcrum protrusion is provided, and the end arm of the operating lever abuts on the first and second fulcrum projections, and the tip of the end arm is in a locking arrangement state in which the upper rail is locked with respect to the lower rail. A slide rail device has been proposed, wherein the operating lever is held by the lever spring on the upper rail so as to assume an initial posture for engaging with the front end of the lock member. (Patent document 1).

According to this invention, in an emergency such as a vehicle collision, it is possible to secure a cancellation function in which the locked state of the left and right slide rail assemblies is maintained together, and the holding structure of the operation lever is simplified. This is a useful invention in that it has the function of reducing costs.

JP 2015-116998 A

The present invention makes it possible to attach the lock member used for the slide rail of the vehicle seat to the upper rail in a simpler process, thereby reducing the cost. To provide a mounting structure and a mounting method of a lock member to an upper rail capable of preventing the lock member from coming off the upper rail even when it joins the slide rail.

In order to achieve the above object, the present invention employs the following means.

The mounting structure of the lock member mounted for locking the slide of the upper rail of the vehicle seat slide rail according to the present invention includes:
the upper rail having a first fixing insertion hole for fixing the locking member;
the lock member having a first fixing insertion piece formed on a fixing piece extending from the lock member base and inserted into the first fixing insertion hole;
The first fixing insertion hole is capable of inserting the first fixing insertion piece and has an extended support piece erected from the bottom surface,
The first fixing insertion piece has a tip support piece with a narrow tip, and the extension support piece supports the tip support piece so as to be pressed against the first fixation insertion hole. characterized by

According to the mounting structure of the lock member according to the present invention, the first fixing insertion piece is inserted into the first fixing insertion hole, and the extended support piece presses against the upper rail for support. By preventing the first insertion piece from coming off the first fixing insertion hole, the locking member is prevented from coming off from the upper rail.

Further, in the lock member mounting structure according to the present invention, the first fixing insertion holes are provided in at least both inner side walls of the upper rail,
The first fixing insertion pieces are a pair of fixing pieces bifurcated and extended from the lock member base portion so as to be inserted into the respective first fixing insertion holes provided on both inner walls. It may be characterized by being formed on a piece.

By adopting such a configuration, the first fixing insertion pieces are inserted into the first fixing insertion holes formed in both side walls, respectively, and fixed at two points. 1 insertion hole can be prevented.

Further, in the lock member mounting structure according to the present invention, the extension support piece is such that, when the lock member is fixed, the difference between the top surface of the first fixing insertion hole and the top surface of the extension support piece is the length of the lock member. It may be characterized by being formed so as to be equal to or less than the plate thickness.

By adopting such a configuration, it is possible to reduce the possibility that the lock member will slip out of the gap between the first fixing insertion hole and the extended support piece.

Further, in the mounting structure of the locking member according to the present invention, when the first fixing insertion piece disposed between the fixing pieces is inserted into the first fixing insertion hole, the fixing It may be characterized by having an access prevention part that abuts from the inner side of the piece and prevents movement in the direction of detachment.

By adopting such a configuration, the movement of the fixing piece in the direction in which it is removed is prevented by the proximity preventing portion from the inside, so that the fixing piece can be prevented from being removed from the first fixing insertion hole.

The mounting method of the lock member of the present invention includes:
In a mounting method of a lock member mounted for locking a slide of an upper rail of a vehicle seat slide rail,
the upper rail having a pair of first fixing insertion holes for fixing the locking member;
the lock member having a first fixing insertion piece formed on a fixing piece extending from the lock member base and inserted into the first fixing insertion hole;
The first fixing insertion hole has an extended support piece bent inward from the lower surface,
After the first fixing insertion piece is inserted into the first fixing insertion hole, the extended support piece is moved from the inside to the outside to press the first fixing insertion piece against the upper rail. support the first fixing insert piece.

By adopting such a configuration, when attaching the lock member to the upper rail, it is sufficient to simply insert the first fixing insertion piece into the first fixing insertion hole, so that the lock member can be easily and quickly attached to the upper rail. can be attached to Also, when fixing the lock member to the upper rail, it is only necessary to raise the extended support piece, so that the fixing can be easily and quickly performed.

INDUSTRIAL APPLICABILITY The present invention provides an upper rail that can reduce costs with a simpler structure and can prevent a lock member from coming off even when a force greater than that applied during normal riding is applied to the slide rail. It is possible to provide the mounting structure and mounting method of the lock member for.

FIG. 1 is a perspective view of a slide rail 100 according to an embodiment. FIG. 2 is a plan view showing a state in which the slide rail 100 and the operating lever 40 are arranged on the vehicle. FIG. 3 is a side view showing a state where the vehicle seat 1 is attached to the slide rail 100. As shown in FIG. 4 is a perspective view of the upper rail 20, the lock member 30 and the operating lever 40. FIG. FIG. 5 is a side view of the first fixing insertion hole 25 and the second fixing hole 26 provided in the upper rail 20. As shown in FIG. FIG. 6 is a perspective view showing one step of the mounting method for mounting the lock member 30 on the upper rail 20. As shown in FIG. FIG. 7 is a perspective view showing one step of the mounting method for mounting the lock member 30 on the upper rail 20. As shown in FIG. 8A and 8B are a perspective view and a cross-sectional view showing one step of a mounting method for mounting the lock member 30 on the upper rail 20. FIG. FIG. 9 is an end view showing one step of the mounting method for mounting the lock member 30 on the upper rail 20. As shown in FIG. 10 is a partially cutaway perspective view of the slide rail 100. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a slide rail 100 according to the present embodiment, FIG. 2 is a plan view showing an installation state of the slide rail 100, and FIG. 3 is a side view showing a state of being attached to a vehicle seat 1. FIG. is. It should be noted that the embodiments and drawings described below illustrate a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations. Also, the same or similar reference numerals are assigned to corresponding components in each figure. For convenience of explanation, FIGS. 4 to 10 will be described using the diagrams in which the top and bottom are reversed with respect to the actual use state, and the upper side of the drawing in the reversed state of FIGS. ”, and the lower side is described as “downward”. In actual use, it is used in the state shown in FIG. 1 or FIG. When describing the slide rail 100 in this embodiment, the mounting structure of the lock member 30 of the upper rail 20 and the upper rail 20 will be described at the same time.

As shown in FIG. 1, the slide rail 100 according to the present embodiment mainly includes a lower rail 10, an upper rail 20, a ball member 60 for ensuring sliding between the lower rail 10 and the upper rail 20, and an upper rail 20. A lock member 30 is arranged inside and locks the slide of the lower rail 10 and the upper rail 20, and an operation lever 40 moves the lock member 30 to operate a locked state and an unlocked state. As shown in FIG. 2, when the slide rails 100 are attached to the vehicle, the two slide rails 100 are arranged in parallel. An operating lever 40 is provided. As shown in FIG. 3, these two slide rails 100 and the operation lever 40 are attached to the vehicle seat 1 directly or via a bracket or the like to the upper rails 20, and are slid together with the upper rails 20 to the lower rails 10. Thus, the vehicle seat 1 can be moved forward and backward.

As shown in FIG. 1, the lower rail 10 is formed in a long rail shape, and includes a bottom surface portion 11, a pair of side surface portions 12 erected from both sides of the bottom surface portion 11, and a pair of side surface portions 12 extending from the side surface portions 12. A pair of upper surface portions 13 extending horizontally toward the center and a pair of inner surface vertical portions 14 extending vertically downward from the upper surface portions 13 are provided. The inner surface vertical portion 14 is provided with a plurality of sawtooth-like lock fitting teeth 14a which are fitted when the sliding movement with the upper rail 20 is locked. In the present embodiment, the lower rail 10 will be described as having a substantially square cross section, but the cross section is not limited to this.

Next, the upper rail 20 and the lock member 30 are described in detail. The following description will be made with reference to FIGS. 4 to 9, but the description will be made in a state in which the top and bottom are reversed from the state in which it is actually attached to the vehicle, and as indicated by the arrow in FIG. The top and bottom in the state will be described as the top and bottom, and the left and right and the front and back will refer to the directions indicated by the arrows in FIG.

As shown in FIG. 4, the upper rail 20 is formed as an elongated member, and includes a horizontal portion 21, a pair of inner walls 22 vertically erected at both ends of the horizontal portion 21, and a pair of Horizontally extending portions 23 extending in the outer horizontal direction from the inner wall 22, and a pair of standing portions 24 standing vertically downward from the ends of the pair of horizontally extending portions 23. , and the cross section is formed in a substantially inverted Ω shape.

The upper rail 20 has a first fixing insertion hole 25 and a second insertion hole 26 provided behind the first fixing insertion hole 25 so as to straddle the inner wall 22 and the horizontally extending portion 23 . , and a third insertion hole 27 provided on the rear side of the second insertion hole 26 is formed. These fixing first insertion holes 25 , second insertion holes 26 and third insertion holes 27 are provided in the inner wall 22 on both sides. The first fixing insertion hole 25 and the second fixing hole 26 are formed adjacent to each other on the front side of the upper rail 20, and the third insertion hole 27 extends from the first fixing hole 25 and the second fixing hole 26. It is formed spaced apart on the rear side. A first fixing insertion piece 34 of the locking member 30 described later is inserted into the first fixing insertion hole 25, a second insertion piece 35 of the locking member 30 is inserted into the second insertion hole 26, and a third The lock plate portion 38 of the lock member 30 is inserted into the insertion hole 27 .

As shown in FIG. 5, the first fixing insertion hole 25 is generally formed in a substantially rectangular shape. formed. The first fixing insertion hole 25 is formed so that a first fixing insertion piece 34 of the locking member 30 described later can be inserted. Before the lock member 30 is assembled, the extended support piece 25d is bent obliquely from the vicinity of the base of the inner wall 22 toward the inner side of the inner wall 22 (the central side of the upper rail), as shown in FIG. It is formed by In order to fix the locking member 30, the extended support piece 25d, when raised at a predetermined angle, is positioned between the upper surface 25a of the first fixing insertion hole 25 and the extended support piece, as shown in FIG. 5A. 25d is formed so that the distance d1 is equal to or _less than the plate thickness of the lock member 30. As shown in FIG.

The second insertion hole 26 is sized to allow the second insertion piece 35 to be inserted therein. The second insertion hole 26 is provided with a second insertion hole support portion 26d to prevent the second insertion piece 35 from coming off upward.

The third insertion hole 27 is sized to allow insertion of the lock plate portion 38 of the lock member 30 , and the lower end surface of the third insertion hole 27 fits into the fitting hole 38 a of the lock plate portion 38 . The upper rail side fitting tooth 27a is formed in a sawtooth shape. The horizontally extending portion 23 in the vicinity of the third insertion hole 27 is formed so as to be greatly curved upward, so that when the lock plate portion 38 of the lock member 30 moves upward, the fitting hole of the lock plate portion 38 is pulled out. A region is secured to the extent that 38a can be completely removed from the upper rail side fitting tooth 27a. On the other hand, the detachment prevention projection 27b is provided to prevent the lock plate portion 38 of the lock member 30 from completely detaching from the upper rail 20. As shown in FIG.

In addition, as shown in FIG. 1 , the upper rail 20 is provided with through holes 90 and mounting projections 91 for mounting the vehicle seat 1 or a bracket (not shown) for mounting the vehicle seat 1 . These configurations are not particularly limited. In addition, other configurations necessary for the upper rail 20 are added as appropriate.

As shown in FIG. 4, the lock member 30 is made by punching or bending a single metal plate having spring elasticity. A pair of fixing pieces 32 bifurcated and extending, an approach prevention portion 33 disposed between the pair of fixing pieces 32, and a lock member base 31 with respect to the fixing pieces 32 It has a lock plate portion 38 provided on the opposite side, and a position deviation prevention piece 39 extending forward from the lock plate portion 38 .

The pair of fixing pieces 32, in a state where no force is applied, extends from the locking member base portion 31 into two branches so that a gap is provided between them. By applying force to 32, the distance between them can be narrowed so that the tips can be brought into complete contact with each other as shown in FIG. In this state, the width of the pair of fixing pieces 32 can be made narrower than the interval between the inner walls 22 on both sides of the upper rail 20 . At the tip of the fixing piece 32, as shown in FIG. and A groove 36 is formed between the fixing first insertion piece 34 and the second fixing insertion piece 35 , and the groove 36 is arranged between the first fixing insertion hole 25 and the second insertion hole 26 . , the first fixing insertion piece 34 is inserted into the first fixing insertion hole 25, and the second insertion piece 35 is inserted into the second insertion hole 26, respectively. The first fixing insertion piece 34 is formed with a tip support piece 34a having a narrow tip so that the opposite sides of the pair of first fixing insertion pieces 34 are recessed. The first fixing insertion piece 34 is fixed to the first fixing insertion hole by pressing the leading end support piece 34a with the extended support piece. Further, a slope portion 34b is formed obliquely with respect to the longitudinal direction of the fixing piece 32 so as to gradually become thicker rearward from the tip support piece 34a.

The second insertion piece 35 is formed on the rear side of the first fixing insertion piece 34 , and when the first fixing insertion piece 34 is inserted into the first fixing insertion hole 25 , the second insertion piece 35 is inserted into the second insertion hole 26 . provided at corresponding positions.

Further, a proximity prevention portion 33 is provided, which extends from the lock member base portion 31 so as to be arranged between the pair of fixing pieces 32 and prevents the pair of fixing pieces 32 from approaching each other. there is The proximity prevention part 33 is arranged between the pair of fixing pieces 32 when no force is applied. can be removed from In addition, the tip of the approach preventing portion 33 is curved downward to draw a U-shape, and is arranged above the operating lever 40 when attached, and the pair of fixing pieces 32 are moved upward by spring elasticity. It also has a function of urging to

On the other hand, a locking plate portion 38 is formed on the side opposite to the fixing piece 32 with respect to the locking member base portion 31 . The lock plate portion 38 is formed with a plurality of fitting holes 38a into which the upper rail side fitting teeth 27a and the locking fitting teeth 14a are fitted. When the locking tooth 14a is fitted into the fitting hole 38a of the lock plate portion 38, the sliding of the upper rail 20 is locked. . In this embodiment, a total of four fitting holes 38a, two on each side, are formed, but the number is not limited to this. Further, between the fitting holes 38a, fitting projections 38b curved downward are provided, and are brought into contact with the ends of the operating lever 40 to position the operating lever 40. have Further, positional displacement prevention pieces 39 are provided extending from the lock plate portion 38 to both sides of the lock member base portion 31 in parallel. A pair of substantially arc-shaped protrusions 39 a are provided on the outer side surface of the position deviation prevention piece 39 , and the pair of protrusions 39 a press against the pair of inner walls 22 of the upper rail 20 to move the locking member 30 left and right. Directional misalignment is prevented.

As shown in FIG. 1, the operating lever 40 includes a pair of end arm portions 41 attached to the slide rails 100 arranged on the left and right sides, and an operating lever 41 connecting the respective end arm portions 41 to form an operating portion. It has an arm portion 42 and a generally U-shaped configuration as a whole. Each of the end arm portions 41 has a flat tip side, and as shown in FIG. Further, the end arm portion 41 is bent so that the operation arm portion 42 is arranged slightly upward when the slide rail 100 is installed in the vehicle.

A method of assembling the lower rail 10, the upper rail 20, the lock member 30, and the operating lever 40 configured as described above will be described with reference to FIGS. 6 to 9. FIG. FIG. 9 is an explanatory view schematically showing an end view at the AA portion of FIG. 7. FIG. First, as shown in FIG. 6, the pair of fixing pieces 32 are brought close to each other so that they can be inserted into the inner wall 22 of the upper rail 20 in a state where the proximity preventing portion 33 of the lock member 30 is pushed downward. and narrow the width of the pair of fixing pieces 32 . In this state, the fitting protrusion 38b is set on the operating lever 40 and arranged in the upper rail 20. As shown in FIG. At this time, the lock plate portion 38 is inserted into the third insertion hole 27 so that the upper rail side fitting tooth 27a is fitted into the fitting hole 38a of the lock plate portion 38 . Since the fixing piece 32 is biased to the position of the upper hole 26a in this state, it is pressed from above as shown in FIG. Move to position. This state is the state of FIGS. 7 and 9A. By releasing the pair of fixing pieces 32 in close proximity, the first fixing insertion piece 34 and the second fixing insertion piece 35 are opened toward the inner wall 22 side, and the first fixing insertion hole 25 and the second fixing insertion piece 35 are opened, respectively. 2 insertion hole 26 (FIG. 9B). At this time, since the extended support piece 25d is bent inward, it does not interfere with the insertion of the first fixing insertion hole 25 and the second insertion hole 26. As shown in FIG. In this way, the first fixing insertion piece 34, the second insertion piece 35 and the lock plate portion 38 are inserted into the first fixing insertion hole 25, the second insertion hole 26 and the third insertion hole 27, respectively. From this state, as shown in FIG. 9C, an expanding member 50 having a certain size is pulled up from below in order to expand the extended support piece 25d, so that the extended support piece 25d is opened and erected. (Fig. 9D). Standing at this time does not have to be vertical. As a result, the first fixing insertion piece 34 is strongly pressed against the first fixing insertion hole 25 , so that the groove 36 is strongly pressed against the inner wall 22 , and the lock member 30 is fixed to the upper rail 20 . become. At this time, as shown in FIG. 9D, the gap d1 between the end of the extended support piece 25d and the upper surface 25a of the first fixing insertion hole 25 is narrower than the plate thickness of the locking member 30. Therefore, as shown in FIG. The first insertion piece 34 is prevented from coming off the first fixing insertion hole 25 . Further, even if the mounting position of the lock member 30 is shifted in the longitudinal direction with respect to the upper rail 20, the lock member 30 can be arranged on the front side by pressing the inclined surface portion 34b with the extended support piece 25d. is prevented.

In the upper rail 20 thus manufactured, the end side of the end arm portion 41 moves upward around the fulcrum 45 by pushing down the operation lever 40 as shown in the BB cross-sectional view of FIG. This movement pushes up the lock plate portion 38 . By this movement, the fitting hole 38a of the lock plate portion 38 can be removed from the upper rail side fitting tooth 27a. In this state, the lower rail 10 and the upper rail 20 are assembled to form a slide rail 100 by inserting the upper rail 20 into the lower rail 10 so as to slide from the end.

As shown in FIG. 10, the slide rail 100 is arranged such that the lock fitting teeth 14a of the lower rail 10 are arranged in parallel with the upper rail side fitting teeth 27a. Therefore, by pushing down the operation lever 40 (in the vehicle-mounted state, it is arranged upside down, so it is pulled up), the end of the end arm portion 41 moves upward around the fulcrum 45, and this movement , the lock plate portion 38 is pushed up. As a result, both the upper rail side fitting tooth 27 a and the locking fitting tooth 14 a are removed from the fitting hole 38 a of the lock plate portion 38 , so that the upper rail 20 can slide with respect to the lower rail 10 . When the operation lever 40 is released, the fitting hole 38a of the lock plate portion 38 is fitted with the upper rail side fitting tooth 27a and the locking fitting tooth 14a by the spring elasticity of the lock member 30, and the upper rail 20 is slid. is locked.

According to the mounting structure of the locking member 30 of the upper rail 20 manufactured in this manner, when the locking member 30 is mounted in the first fixing insertion hole 25, the first fixing insertion piece 34 is fixed by the extended support piece 25d. Therefore, the first fixing insertion piece 34 is prevented from coming off from the first fixing insertion hole 25 . Furthermore, since the proximity prevention portion 33 is arranged between the pair of fixing pieces 32, the first fixing insertion piece 34 is also restrained from the inside by the proximity prevention portion 33, so that the lock member 30 is secured to the second insertion hole. 26, it is prevented from being detached from the first fixing insertion hole 25; As described above, according to the mounting structure of the locking member 30 of the upper rail 20 according to the present embodiment, it has a plurality of disengagement prevention mechanisms, and the locking member 30 can be secured even when a large force is applied unexpectedly. Disengagement from the upper rail 20 is prevented.

In addition, according to the mounting structure of the lock member 30 according to the present invention, when inserting the first fixing insertion piece 34 into the first fixing insertion hole 25, the pair of fixing pieces 32 are brought close to each other and pushed. Since it is only necessary, the fitting operation can be performed more easily and quickly.

It should be noted that the present invention is not limited to the above-described embodiments, and can be implemented in various forms within the technical scope of the present invention.

As shown in the above-described embodiments, it can be industrially applied to slide rails.

DESCRIPTION OF SYMBOLS 10... Lower rail 11... Bottom part 12... Side part 13... Upper surface part 14... Inner vertical part 14a... Fitting tooth for locking 20... Upper rail 21... Horizontal part 22... Inner wall 23... Horizontally extending portion 24 Standing portion 25 First fixing insertion hole 25a Upper surface 25d Extension support piece 26 Second insertion hole 26a Upper hole 26d Second insertion hole support Part 27 Third insertion hole 27 a Upper rail side fitting tooth 27 b Detachment prevention projection 30 Lock member 31 Lock member base 32 Fixing piece 33 Approach prevention portion 34 First fixing insertion piece 34a Front end support piece 34b Slope portion 35 Second insertion piece 36 Groove 38 Lock plate portion 38a Fitting hole 38b Fitting projection 39 Position Anti-slip piece 39a...Protrusion 40...Operation lever 41...End arm part 41a...Slope 42...Operation arm part 45...Support point 50...Expansion member 60...Ball member 90...Through-hole Hole, 91... Mounting projection, 100... Slide rail

Claims (4)

In a mounting structure of a lock member mounted to lock the slide of the upper rail of the vehicle seat slide rail,
the upper rail having a first fixing insertion hole for fixing the lock member and a second insertion hole formed adjacent to the first fixing insertion hole ;
The fixing piece extending from the locking member base has a first fixing insertion piece inserted into the first fixing insertion hole and a second insertion piece inserted into the second insertion hole. a locking member;
The first fixing insertion hole is capable of inserting the first fixing insertion piece and has an extended support piece erected from the bottom surface,
The first fixing insertion piece has a tip support piece with a narrow tip, and the extension support piece presses the tip support piece into the first fixation insertion hole, and the first fixation insertion piece and the second insertion piece is fixed to the upper rail such that the groove between the second insertion piece is strongly pressed against the inner wall between the first fixing insertion hole and the second insertion hole,
When the lock member is fixed, the extension support piece has a difference between an end portion of the extension support piece and an upper surface of the first fixing insertion hole directly above the end portion of the extension support piece, which is equal to or less than the plate thickness of the lock member. A mounting structure for a locking member, characterized in that it is formed as follows. The fixing first insertion holes are provided at least on both inner walls of the upper rail,
The first fixing insertion pieces are a pair of fixing pieces bifurcated and extended from the lock member base portion so as to be inserted into the respective first fixing insertion holes provided on both inner walls. 2. The mounting structure of the locking member according to claim 1, wherein the locking member is formed in a piece. The extension support piece is formed so that the difference between the top surface of the first fixing insertion hole and the top surface of the extension support piece is equal to or less than the plate thickness of the lock member when the lock member is fixed. 3. The mounting structure of the lock member according to claim 1 or 2, characterized in that: It is arranged between the fixing pieces, and when the first fixing insertion piece is inserted into the first fixing insertion hole, it abuts from the inner side of the fixing piece so as to move in a direction away from the fixing piece. 4. The mounting structure of the lock member according to claim 1, further comprising an approach preventing portion for preventing the approach.

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