JP2017214058A - Seat slide device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid that a locking force of a locking part for locking a release member to a movable-side rail is largely lowered.SOLUTION: A first locking part 74 is sandwiched by a first locked face 9D and a second locked face 9E. Therefore, even if a force in a direction in which a release member 9 is withdrawn, that is, a withdrawal force acts on the release member 9, the bending moment for enlarging an angle formed of the first locking part 74 and a linear part 73 hardly acts on the first locking part 74. Accordingly, the withdrawal force is not received by bending stress which is generated at a root part of the first locking part 74, that is, a connecting part of the first locking part 74 and the linear part 73, but can be received by a shearing force which is generated at a cross section of the root part. By this constitution, a seat slide device which can avoid that the locking force is largely lowered can be obtained.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a seat slide device that slidably supports a seat.

  For example, in the seat slide device described in Patent Document 1, the movable side rail is displaced from the fixed side rail by displacing the lock portion bent in a rectangular wave shape in the vertical direction substantially orthogonal to the longitudinal direction of the movable side rail. The switching state is switched between a restriction state for restricting sliding and a release state for releasing the restriction state.

  The lock part is supported by a pair of linear elastic deformation parts provided on both sides of the lock part. In addition, the lock part and linear elastic deformation part which concern on patent document 1 are the integrally molded products formed by giving a bending process to one wire.

  The distal end sides of a pair of linear elastic deformation portions (hereinafter also referred to as first elastic deformation portions) provided on one side across the lock portion are locked to a release member. The distal end sides of a pair of linear elastic deformation portions (hereinafter also referred to as second elastic deformation portions) provided on the other side across the lock portion are locked to the movable rail.

  The release member is a member for switching the deformation state of the first elastic deformation portion and the second elastic deformation portion. That is, when the release member is directly or indirectly operated by an occupant or the like, the lock portion is in a restricted state or a released state.

Japanese Patent Laying-Open No. 2015-67142

  The release member according to Patent Document 1 is a metal member that has a pair of side wall portions and a lid wall portion that connects the side wall portions and has a C-shaped or U-shaped open cross-sectional shape. The first elastic deformation portion includes a pair of linear portions that can be elastically deformed, a locking portion that is locked to each side wall portion, and the like.

  The distal end sides of the pair of linear portions are disposed between the pair of side wall portions. Each of the pair of locking portions is a protruding portion formed by bending the leading end side of each linear portion approximately 90 degrees toward each side wall portion. And each latching | locking part is hooked and latched by the recessed part for latching provided in each side wall part.

  For this reason, for example, when a force in the direction of pulling the release member from the movable side rail (hereinafter referred to as a pulling force) acts on the release member, the angle formed by the locking portion and the linear portion is enlarged, and the locking portion is There is a concern that the locking force for locking to the release member may be reduced.

  In view of the above points, the present application provides a seat slide device capable of suppressing a significant decrease in locking force.

  In the present application, in a seat slide device that slidably supports a seat, the seat is supported by a fixed-side rail (3) and a movable-side rail (5) that is slidable with respect to the fixed-side rail (3). And a lock displaceable between a restricting position for restricting the movable rail (5) from sliding relative to the fixed rail (3) and a releasing position for releasing the restriction. An elastically deformable portion (7B) that is elastically deformable between a portion (7A) and a state in which the lock portion (7A) is supported in the restricting position and a state in which the lock portion (7A) is supported in the release position. An elastically deformable linear portion (73) extending in a direction substantially parallel to the longitudinal direction of the side rail (5), and projecting in a direction substantially orthogonal to the extending direction from the leading end side of the linear portion (73) in the extending direction. Bullet with a locking part (74) A release member (9) for switching the deformed portion (7B) and the deformed state of the elastic deformable portion (7B), and a first locked surface that can contact the lock portion (74) from one end in the extending direction (9D) and a release member (9) having a second locked surface (9E) that can come into contact with the locking portion (74) from the other end in the extending direction.

  Thereby, in this application, it becomes the structure by which the latching | locking part (74) was pinched | interposed by the 1st to-be-latched surface (9D) and the 2nd to-be-latched surface (9E). For this reason, even when the pulling force acts on the release member, a bending moment that increases the angle formed by the locking portion (74) and the linear portion (73) acts on the locking portion (74). It is difficult to configure.

  Therefore, in this application, it does not receive the said pulling force with the bending stress which generate | occur | produces in the root part of a latching | locking part (74), ie, the connection part of a latching | locking part (74), and a linear part (73), It becomes the structure which can receive the said extraction force with the shear force which generate | occur | produces in the cross section of a part. As a result, it is possible to obtain a seat slide device capable of suppressing a significant decrease in the locking force.

  The first locked surface (9D) and the second locked surface (9E) constitute a side wall portion of a locking groove (9C) extending in a direction substantially orthogonal to the extending direction, and the release member (9). Of these, the cross-sectional shape of the locking groove (9C) is a closed cross-sectional shape, and the locking groove (9C) and the release member (9) are more preferably an integrally molded product.

Thereby, the first locked surface (9D) and the second locked surface (9E) can be easily formed, and the rigidity of the release member (9) can be increased.
The linear part (73) has a first linear part (73A) provided on one side across the release member (9) and a second linear form provided on the other side across the release member (9). The locking portion (74) is provided in the first locking portion (74A) provided in the first linear portion (73A) and the second linear portion (73B). In the case where the second locking portion (74B) is configured, the first locking portion (74A) and the second locking portion (74B) have the first locked surface (9D) and the second locking portion (74B). 2 It is desirable to be disposed at a position where it can come into contact with the locked surface (9E).

  Thereby, since the front-end | tip of a 1st locking part (74A) and a 2nd locking part (74B) becomes a structure located in a locking groove (9C), each locking part (74) and each linear part are comprised. A bending moment such that the angle formed with (73) is increased is unlikely to act on the locking portion (74).

  When the extending direction of the linear portion (73) and the direction substantially perpendicular to the protruding direction of the locking portion (74) are defined as the height direction, the locking portion (74), the first locked surface (9D), and the first The position where the two locked surfaces (9E) are in contact with each other is preferably a position between one end in the height direction of the release member (9) and the other end in the height direction. As a result, the height of the movable rail (5), that is, the seat slide device can be reduced.

  The movable rail (5) has wall surfaces (5A, 5B) substantially orthogonal to the protruding direction of the locking portion (74), and the wall surfaces (5A, 5B) are in contact with the linear portion (73). Thus, it is desirable that the locking portion (74) be able to regulate displacement in a direction away from the first locked surface (9D) and the second locked surface (9E).

As a result, it is possible to reliably hold a configuration in which a bending moment such that the angle formed by the locking portion (74) and the linear portion (73) increases does not act on the locking portion (74).
The movable rail (5) has a first restricting portion for restricting the release member (9) from being displaced in a direction substantially parallel to the protruding direction of the locking portion (74) with respect to the movable rail (5). (5G) and the second restricting portion (5H), and the first restricting portion (5G) and the second restricting portion (5H) include the lock portion (7A) and the first locked surface (9D) or It is desirable to be provided between the second locked surface (9E).

As a result, it is possible to reliably hold a configuration in which a bending moment such that the angle formed by the locking portion (74) and the linear portion (73) increases does not act on the locking portion (74).
The first locked surface (9D) and the second locked surface (9E) are respectively at one end in the height direction with respect to the first locked surface (9D) and the second locked surface (9E). Inclined guide surfaces (9G, 9H) are provided. Thereby, the latching | locking part (74) can be easily mounted | worn in a latching groove | channel (9C).

  Furthermore, it is desirable to provide a connecting portion (9K) that connects the first locked surface (9D) and the second locked surface (9E). Thereby, it can suppress that a female force concentrates on a 1st to-be-latched surface (9D) and a 2nd to-be-latched surface (9E).

  Incidentally, the reference numerals in the above parentheses are examples showing the correspondence with the specific configurations described in the embodiments described later, and the present invention is limited to the specific configurations indicated by the reference numerals in the parentheses. It is not something.

It is a figure which shows the attachment state of the slide apparatus 1 for sheets which concerns on 1st Embodiment of this invention. 1 is an exploded perspective view of a seat slide device 1 according to a first embodiment of the present invention. It is AA sectional drawing of FIG. It is a perspective view of the lock spring 7 which concerns on 1st Embodiment of this invention. It is a figure which shows a part of vertical sectional view in the center of the width direction of the sliding apparatus for sheets 1 concerning 1st Embodiment of this invention. It is AA sectional drawing of FIG. It is a part (A section of Drawing 2) expansion perspective view of movable rail 5 concerning a 1st embodiment of the present invention. It is a perspective view of the fixed side rail 3 which concerns on 1st Embodiment of this invention. It is C arrow line view of FIG. 10 in the state which removed the cover wall part 5C from the movable side rail 5 which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows the deformation | transformation state of the lock spring 7 which concerns on 1st Embodiment of this invention, and the action | operation of the cancellation | release member 9. FIG. It is a perspective view of release member 9 concerning a 1st embodiment of the present invention. It is the A section enlarged view of FIG. It is an enlarged view of 9 C of locking grooves, the 1st locking part 74, etc. which concern on 1st Embodiment of this invention. A is a horizontal direction arrow view of the 2nd latching | locking part 76 which concerns on 1st Embodiment of this invention. B is a vertical arrow view of the second locking portion 76 according to the first embodiment of the present invention. It is BB sectional drawing of FIG. It is a figure which shows the characteristic of the cancellation | release member 9 which concerns on 2nd Embodiment of this invention. A is a cross-sectional view of a locking groove 9C according to a second embodiment of the present invention. B is a side view of a locking groove 9C according to the second embodiment of the present invention. It is a figure which shows the connection structure of the release lever 105 and the loop handle 101 in 3rd Embodiment of this invention. It is a disassembled perspective view of the seat slide apparatus 1 which concerns on 3rd Embodiment of this invention. It is a figure which shows the cancellation | release lever 105 and the loop handle 101 in 3rd Embodiment of this invention. It is a figure which shows the cancellation | release lever 105 and the loop handle 101 in 3rd Embodiment of this invention. It is a figure which shows the latching | locking part 102 of the loop handle 101 in 3rd Embodiment of this invention.

  The “embodiment of the invention” described below shows an example of an embodiment belonging to the technical scope of the present invention. In other words, the invention specific items described in the claims are not limited to the specific configurations and structures shown in the following embodiments.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the arrow etc. which show the direction attached | subjected to each figure are described in order to make it easy to understand the relationship between each figure. The present invention is not limited to the directions given in the drawings.

At least one member or part described with at least a reference numeral is provided, except where “plurality”, “two or more”, and the like are omitted.
(First embodiment)
In this embodiment, the present invention is applied to a seat slide device that slidably supports a rear seat of an automobile. As shown in FIG. 1, the seat slide device 1 is disposed at the lower end in the vertical direction of the seat S.

1. Overview of Seat Slide Device As shown in FIG. 2, the seat slide device 1 includes at least a fixed rail 3, a movable rail 5, a lock spring 7, a release member 9, and the like. As shown in FIG. 1, the fixed-side rail 3 is fixed to a vehicle floor panel or the like so that the longitudinal direction thereof coincides with the longitudinal direction of the vehicle (the longitudinal direction of the seat).

  The movable rail 5 is assembled to the fixed side rail 3 so as to be slidable with respect to the fixed side rail 3 while the sheet S is assembled to support the sheet S. That is, the seat S can slide in the vehicle front-rear direction with respect to the fixed side rail 3 integrally with the movable side rail 5.

  The sheet slide device 1 according to the present embodiment is disposed on each side of the sheet S in the width direction. That is, the monopod seat S is assembled to the vehicle via the two seat slide devices 1. The width direction of the seat S coincides with the vehicle width direction, that is, the vehicle left-right direction.

The lock spring 7 is a member for restricting the movable rail 5 from sliding relative to the fixed rail 3. The release member 9 is a member for releasing the restriction by the lock spring 7. The release member 9 according to the present embodiment is directly or indirectly operated by a passenger. Outline of Fixed Side Rail and Movable Side Rail As shown in FIG. 3, the fixed side rail 3 has an open cross section 3 </ b> D configured in a C shape or a U shape. The open cross section 3D includes a pair of side wall portions 3A and 3B and a lid wall portion 3C that connects the side wall portions 3A and 3B. The pair of side wall portions 3 </ b> A and 3 </ b> B and the lid wall portion 3 </ b> C extend in a strip shape along the longitudinal direction of the fixed side rail 3.

  The fixed rail 3 according to the present embodiment is a metal member formed by pressing a rolled steel plate or the like. For this reason, the pair of side wall portions 3A, 3B and the lid wall portion 3C, that is, the open cross-sectional portion 3D, is a metal integrally formed product.

  The movable rail 5 has an open cross section 5D and a pair of track portions 5F. The open cross-sectional portion 5D is a portion having a pair of side wall portions 5A and 5B and a lid wall portion 5C that connects the side wall portions 5A and 5B, and is configured in a C shape or a U shape. The sheet S is assembled to the lid wall portion 5C of the movable side rail 5.

  Each track part 5F is a part provided on both sides in the width direction (left-right direction) across the open cross-sectional part 5D, and is a part where the plurality of rolling elements 11A to 11D are in rolling contact. The movable rail 5 according to the present embodiment is a metal member formed by pressing a rolled steel plate or the like.

  The pair of side wall portions 5 </ b> A and 5 </ b> B, the lid wall portion 5 </ b> C, and the pair of track portions 5 </ b> F extend along the longitudinal direction of the movable rail 5. The pair of side wall portions 5A and 5B, the cover wall portion 5C, and the pair of track portions 5F, that is, the open cross-section portion 5 and the pair of track portions 5F, are metal integrally formed products.

  Hereinafter, a direction substantially parallel to the direction from the lid wall 5C side toward the open side of the movable rail 5 is referred to as a “height direction”. The “height direction” coincides with the vertical direction (vertical direction) in a state where the seat slide device 1 is assembled to the vehicle.

  A load acting on the movable rail 5 is received by the fixed rail 3 via the plurality of rolling elements 11A to 11D. The load includes gravity acting on the seat S, gravity acting on an occupant seated on the seat S, and the like.

  Each rolling element 11A-11D which concerns on this embodiment is spherical bodies, such as a steel ball. Each of the rolling elements 11A to 11D is in rolling contact with the fixed rail 3 and the movable rail 5 (a pair of track portions 5F). As a result, the movable rail 5 can slide in the longitudinal direction (front-rear direction) while being restricted from being displaced in the width direction (left-right direction) with respect to the fixed-side rail 3.

  As shown in FIG. 2, two rolling elements 11A to 11D are disposed on both ends in the longitudinal direction. These rolling elements 11A to 11D are held by cages 11E to 11H.

3. Overview of Lock Spring As shown in FIG. 4, the lock spring 7 according to this embodiment includes a lock portion 7A, a first elastic deformation portion 7B, a second elastic deformation portion 7C, and the like.

  The lock part 7 </ b> A is a part for restricting the movable rail 5 from sliding relative to the fixed rail 3. The first elastic deformation portion 7B and the second elastic deformation portion 7C are portions for supporting the lock portion 7A so as to be displaceable.

<Lock part>
As shown in FIGS. 5 and 6, the lock portion 7 </ b> A can be displaced between a restriction position that restricts the sliding of the movable rail 5 relative to the fixed rail 3 and a release position that releases the restriction. is there.

  In the present embodiment, the solid lines in FIGS. 5 and 6 indicate the restriction positions. 5 and 6 indicate the release position. That is, the lock portion 7A according to the present embodiment is displaceable in the height direction, and becomes a restriction position when positioned on the upper side in the vertical direction, and becomes a release position when positioned on the lower side in the vertical direction from the position. .

  As shown in FIG. 4, the lock portion 7 </ b> A according to the present embodiment is provided with a plurality of engagement portions 71 and 72. Each of the engaging portions 71 and 72 is a portion where the wire is bent in a C shape or a U shape and formed in a rectangular wave shape.

  As shown in FIG. 6, each of the plurality of engaging portions 71 protrudes to the side wall portions 3 </ b> A, 5 </ b> A (left side in the present embodiment). Each of the plurality of engaging portions 72 protrudes to the side wall portions 3B and 5B (on the right side in the present embodiment).

  As shown in FIG. 7, a plurality of cutout portions 51 and 52 are provided in the longitudinal direction intermediate portions of the side wall portions 5 </ b> A and 5 </ b> B of the movable rail 5 and the track portions 5 </ b> F. In addition, as shown in FIG. 6, the some notch part 51 is provided in each of a pair of side wall parts 5A and 5B. The plurality of notches 52 are provided in each of the pair of track portions 5F.

  As shown in FIG. 7, the notches 51 and 52 are through holes into which the wire materials constituting the engaging portions 71 and 72 can be fitted. The through holes that form the notches 51 and 52 have a long hole shape extending in the vertical direction (height direction).

  As shown in FIG. 6, in a state where the engaging portions 71 and 72 are fitted into the notch 51, the engaging portions 71 and 72 are fitted into the notch 52. For this reason, the engaging parts 71 and 72 engage with the engaging piece 53 formed between the adjacent notch parts 51 and the engaging piece 54 formed between the adjacent notch parts 52.

  As shown in FIG. 3, opposed walls 3 </ b> E and 3 </ b> F are provided at portions of the fixed rail 3 that face the side walls 5 </ b> A and 5 </ b> B of the movable rail 5. As shown in FIG. 8, the opposing walls 3 </ b> E and 3 </ b> F are strip-like portions extending along the longitudinal direction, and are integrally molded products that are press-molded together with the open cross-sectional portion 3 </ b> D.

  A plurality of cutout portions 31 are provided in the longitudinal intermediate portions of the facing walls 3E and 3F. Each notch 31 is a concave depression into which the wire constituting the engaging portions 71 and 72 can be fitted. The depressions forming the notches 31 are U-shaped long holes extending in the vertical direction (height direction).

  And in the state which each engaging part 71 and 72 was fitted in each notch part 3, the engagement piece 32 (refer FIG. 8) formed between the adjacent notch parts 31, and the engaging parts 71 and 72, Can be engaged.

  That is, the position where the engaging portions 71 and 72 engage with the engaging pieces 53, 54 and 32 is the restriction position, and the engaging portions 71 and 72 are the engaging pieces 53, 54 and 32, that is, the notches 51, A position separated from 52 and 31 is a release position.

<First elastic deformation part and second elastic deformation part>
As shown in FIG. 4, the first elastic deformation portion 7B is located on one end side in the longitudinal direction (in the present embodiment, on the vehicle front side) with respect to the lock portion 7A. The second elastic deformation portion 7C is located on the other end side in the longitudinal direction with respect to the lock portion 7A (in the present embodiment, on the vehicle rear side).

  As shown in FIG. 5, the first elastic deformation portion 7B and the second elastic deformation portion 7C are housed in the open cross section 5D, and the lock portion 7A is supported in the restricted position and the lock portion 7A is released. It can be elastically deformed between the state of supporting the position.

  As shown in FIG. 4, the first elastic deformation portion 7 </ b> B has a linear portion 73 and a locking portion 74. The linear portion 73 is an elastically deformable portion that extends in a direction substantially parallel to the longitudinal direction of the movable rail 5. In addition, the linear part 73 which concerns on this embodiment has the 1st linear part 73A and the 2nd linear part 73B, as shown in FIG.

  The first linear portion 73A is provided on one side in the width direction with the release member 9 interposed therebetween. The second linear portion 73B is provided on the other side in the width direction across the release member 9. Hereinafter, the first linear portion 73A and the second linear portion 73B are collectively referred to as the linear portion 73.

  The locking portion 74 is a portion that protrudes in a direction substantially orthogonal to the extending direction from the leading end side of the linear portion 73 in the extending direction. Note that the locking portion 74 according to the present embodiment includes a first locking portion 74A provided in the first linear portion 73A and a second locking portion 74B provided in the second linear portion 73B. Configured.

  The first locking portion 74A protrudes from the tip end portion of the first linear portion 73A toward the second linear portion 73B. The second locking portion 74B protrudes from the tip end portion of the second linear portion 73B toward the first linear portion 73A. Hereinafter, the first locking portion 74 </ b> A and the second locking portion 74 </ b> B are collectively referred to as the first locking portion 74.

  The first locking portion 74 is plastically processed (bent) on the distal end side of the linear portion 73 and constitutes an integrally molded product with the linear portion 73. It should be noted that the tip end of the first locking portion 74A and the tip end of the second locking portion 74B can be separated from each other in the width direction.

  As shown in FIG. 4, the second elastic deformation portion 7C has substantially the same configuration as the first elastic deformation portion 7B. That is, the second elastic deformation portion 7 </ b> C includes a pair of linear portions 75 </ b> A and 75 </ b> B, a locking portion 76 (hereinafter referred to as a second locking portion 76), and the like. The pair of linear portions 75A and 75B are elastically deformable portions that extend in a direction substantially parallel to the longitudinal direction of the movable rail 5 from the lock portion 7A toward the other end in the longitudinal direction (the vehicle rear side).

  The linear portion 75A is disposed on one side in the width direction, and is substantially parallel to the extending direction of the first linear portion 73A. The linear portion 75B is disposed on the other side in the width direction and is substantially parallel to the extending direction of the second linear portion 73B.

  The 2nd latching | locking part 76 is the site | part protruded in the direction substantially orthogonal to the said extension direction from the extension direction front end side of each linear part 75A, 75B. In addition, the 2nd latching | locking part 76 which concerns on this embodiment is comprised so that the extension direction front-end | tip of the linear part 75A and the extension direction front-end | tip of the linear part 75B may be connected.

  That is, each linear part 75A, 75B is integrated via the 2nd latching | locking part 76 in the extension direction front end side. In the present embodiment, the first elastic deformation portion 7B, the lock portion 7A, and the second elastic deformation portion 7C are integrally formed products formed by bending one wire.

4). As shown in FIG. 10, the release member 9 is a member for switching the deformation state of the first elastic deformation portion 7B and the second elastic deformation portion 7C. Hereinafter, the first elastic deformation portion 7B and the second elastic deformation portion 7C are collectively referred to as the first elastic deformation portion 7B and the like.

  That is, the release member 9 is a lever-like member that extends from the first elastically deformable portion 7B side to one end in the longitudinal direction of the movable rail 5 (in the present embodiment, the vehicle front side). Of these, it is disposed between the first elastic deformation portion 7B and the lid wall portion 5C.

  As shown in FIG. 11, an operation unit 13 is provided on one end side in the longitudinal direction of the release member 9. The operation unit 13 is an example of a handle unit that is directly or indirectly operated by an occupant, and is a portion that protrudes from one end in the longitudinal direction of the movable rail 5 (the front end in the present embodiment). In the present embodiment, the operation unit 13 and the release member 9 are metal integrally formed products having a closed cross-sectional shape.

  A pressing portion 9 </ b> A is provided on the other end side of the release member 9 in the longitudinal direction. The pressing portion 9A comes into contact with the lock portion 7A from the lid wall portion 5C side. Then, when an operation force is input to the operation unit 13, the pressing unit 9A uses the operation force to press the lock unit 7A from the restriction position side to the release position side.

  As shown in FIG. 10, a convex fulcrum portion 9B protruding toward the lid wall portion 5C is provided at an intermediate position between the pressing portion 9A and the locking groove 9C in the release member 9. The fulcrum portion 9B constitutes the pivot center point of the release member 9 by contacting the lid wall portion 5C at a portion of the lid wall portion 5C on the first elastic deformation portion 7B side.

  That is, in a state where no operating force is input to the release member 9 (state indicated by a solid line in FIG. 10), the pressing portion 9A is on the lid wall portion 5C side, that is, in the vertical direction by the elastic force received from the first elastic deformation portion 7B and the like. It is pressed upward. For this reason, in the state where the operating force is not input to the release member 9, the operation unit 13 side is located on the lower side in the vertical direction.

  When an operating force that moves the operating portion 13 upward in the vertical direction is input to the release member 9, the pressing portion 9A is displaced downward in the vertical direction with the fulcrum portion 9B as the center of oscillation (see the two-dot chain line in FIG. 10). . For this reason, the lock portion 7A is displaced downward in the vertical direction and becomes the release position. When the operation force disappears, the lock portion 7A returns to the restricted position by the restoring force of the first elastic deformation portion 7B and the like.

  The locking groove 9 </ b> C shown in FIG. 11 is an example of a locked portion where the first locking portion 74 is locked. The locking groove 9 </ b> C is a groove that extends in a direction substantially orthogonal to the extending direction of the linear portion 73 and is open on the opposite side to the lid wall portion 5 </ b> C. That is, the locking groove 9 </ b> C according to the present embodiment is a groove that extends in the width direction and is open on the lower side in the vertical direction.

  As shown in FIG. 12, the locking groove 9 </ b> C has a first locked surface 9 </ b> D and a second locked surface 9 </ b> E. The first locked surface 9D and the second locked surface 9E are opposed to each other in the extending direction of the linear portion 73 to constitute the side wall portion of the locking groove 9C.

  9D of 1st to-be-latched surfaces are surfaces which can contact the 1st latching | locking part 74 from the extending direction one end side (this embodiment vehicle front side). The second locked surface 9E is a surface that can contact the first locking portion 74 from the other end side in the extending direction (in the present embodiment, the vehicle rear side).

  For this reason, the first locking portion 74A and the second locking portion 74B are located at sites that can contact the first locked surface 9D and the second locked surface 9E. In addition, it is desirable that each of the leading end of the first locking portion 74A and the leading end of the second locking portion 74B is located at the center in the extending direction of the locking groove 9C (see FIG. 13).

  That is, the length by which the first locking portion 74A contacts the first locked surface 9D and the second locked surface 9E, and the second locking portion 74B is the first locked surface 9D and the second locked surface. It is desirable that the length of contact with the stop surface 9E is approximately ½ of the length in the extending direction of the locking groove 9C.

  In the free state where the binding force does not act on the linear portion 73 of the first elastic deformation portion 7B, the tip end of the first locking portion 74A and the tip end of the second locking portion 74B are separated from each other. It becomes. Therefore, in the present embodiment, the position of the first locking portion 74 is regulated by utilizing the point that the pair of side wall portions 5A, 5B constitutes a wall surface that is substantially orthogonal to the protruding direction of the first locking portion 74. .

  That is, in a state where the lock spring 7 and the release member 9 are assembled to the movable rail 5, as shown in FIG. 13, the pair of side wall portions 5A and 5B, the first linear portion 73A and the second linear portion, respectively. 73B comes into contact. For this reason, displacement of the first locking portion 74A and the second locking portion 74B in a direction away from the first locked surface 9D and the second locked surface 9E is restricted.

  In the present embodiment, as shown in FIG. 12, the cross-sectional shape of the locking groove 9C portion of the release member 9 is a closed cross-sectional shape. For this reason, the bottom 9F side of the locking groove 9C, that is, the vertical upper end side of the first locked surface 9D and the second locked surface 9E is closed by the bottom 9F.

  The release member 9 and the locking groove 9C, that is, the first locked surface 9D, the second locked surface 9E, and the release member 9 are metal integrally formed products. In the present embodiment, the integrally molded product is formed by subjecting a square tube-shaped pipe material to plastic working.

  Then, the first locked surface 9D and the second locked surface are disposed on one end side in the height direction (the lower end side in the present embodiment) of each of the first locked surface 9D and the second locked surface 9E. Guide surfaces 9G and 9H inclined with respect to 9E are provided.

  The distance between the guide surfaces 9G and 9H increases as the guide surfaces 9G and 9H move toward one end in the height direction (the lower end in the present embodiment), and the first locked surface 9D and the second locked surface The distance between the guide surfaces 9G and 9H is inclined so as to approach the locking surface 9E.

  The guide surfaces 9G and 9H are integrally molded products that are molded together with the first locked surface 9D, the second locked surface 9E, and the bottom portion 9F during plastic processing when the locking groove 9C is formed. And the position where the 1st latching | locking part 74, 1st to-be-latched surface 9D, and the 2nd to-be-latched surface 9E contact is the height direction of 1st to-be-latched surface 9D and the 2nd to-be-latched surface 9E. It is a position between one end and the other end in the height direction.

  That is, the first locking portion 74 is located between the height direction one end (upper end) and the height direction other end (lower end) of the release member 9 at the portion where the locking groove 9C is provided. It contacts the locking surface 9D and the second locked surface 9E.

  For this reason, the 1st latching | locking part 74 will be in the state pinched | interposed by the 1st to-be-latched surface 9D and the 2nd to-be-latched surface 9E in the state which contacted the bottom part 9F, The position where the first locked surface 9D and the second locked surface 9E are in contact is located between the guide surfaces 9G and 9H and the bottom portion 9F.

  As shown in FIG. 9, the movable rail 5 is provided with a first restricting portion 5G and a second restricting portion 5H. The first restricting portion 5G and the second restricting portion 5H restrict the release member 9 from being displaced in a direction substantially parallel to the protruding direction of the first locking portion 74 with respect to the movable rail 5, that is, in the width direction. Part.

  The first restriction portion 5G and the second restriction portion 5H are provided between the locking groove 9C and the lock portion 7A. In the present embodiment, in addition to the first restricting portion 5G and the second restricting portion 5H, portions 5J and 5K facing the pressing portion 9A of the pair of side wall portions 5A and 5B also function as the restricting portion.

  In addition, the 1st control part 5G and the 2nd control part 5H which concern on this embodiment are comprised by the cut-and-raised piece which cut and raised a part of a pair of side wall part 5A, 5B. The cut and raised piece is a part formed through the following “cut and raise process”.

  That is, first, a U-shaped or U-shaped through hole is formed in a part of the side walls 5A, 5B by press working or the like. Next, a portion surrounded by the through hole is bent and raised from the side wall portion while being bent into a substantially L shape by pressing or the like, and becomes a cut and raised piece.

5. Locking structure of the second elastic deformation portion The second elastic deformation portion 7C is locked to a cut and raised piece 55 provided on the movable rail 5 as shown in FIG. As shown in FIG. 14A, the cut and raised piece 55 is provided with a locked portion 55A. 55 A of to-be-latched parts are protrusion pieces with which the 2nd latching | locking part 76 is hooked and latched.

  As shown in FIG. 14B, the cut-and-raised piece 55 is provided on each of the side wall portions 5A and 5B. Each cut-and-raised piece 55 is positioned such that the connecting portion 55B with the side wall portions 5A and 5B is located on the other end side in the longitudinal direction of the movable rail 5 from the front end portion 55C (in the present embodiment, on the vehicle rear side). It is cut and raised to form a substantially L shape.

  For this reason, as shown to FIG. 14A, as shown to FIG. 14A, the said side wall part 5A, 5B exists in the predetermined range which goes to the longitudinal direction one end side (this embodiment vehicle front side) from each connection part 55B among 5A, 5B. A through hole 55D penetrating through is generated.

  Each locked portion 55 </ b> A is a U-shaped dent that is recessed from the upper end portion 55 </ b> E of each cut and raised piece 55 toward the open side (vertically in the vertical direction) of the movable rail 5. And the 2nd latching | locking part 76 has penetrated each to-be-latched part 55A in the thickness direction (this embodiment width direction) of the cut-and-raised piece 55. FIG.

  That is, in this embodiment, each cut-and-raised piece 55 is configured by a protruding piece extending from the vehicle rear side to the vehicle front side, and the second locking portion 76 is hooked on each cut-and-raised piece 55 from the upper end in the vertical direction. Is locked.

6). Assembly structure of release member to movable rail <Assembly structure>
As described above, the release member 9 is disposed between the first elastic deformation portion 7B and the lid wall portion 5C. And the control part 56 is provided in the longitudinal direction one end side (this embodiment vehicle front side) of the movable rail 5 as shown in FIG.

  As shown in FIG. 15, the restricting portion 56 is a part for securing a space in which the insertion-side end portion can be inserted between the first elastic deformation portion 7B and the lid wall portion 5C. The insertion side end portion refers to an end portion of the release member 9 positioned on the lock portion 7A side.

  In other words, the restricting portion 56 is a portion for restricting the distance between the first elastic deformation portion 7B and the lid wall portion 5C to be equal to or less than the end height dimension T1 of the release member 9. That is, in a state where the release member 9 is not assembled to the movable rail 5, the first elastic deformation portion 7 </ b> B comes into contact with the restriction portion 56 as indicated by a two-dot chain line in FIG. 15. For this reason, it is regulated that the distance between the first elastic deformation portion 7B and the lid wall portion 5C is reduced.

  As shown in FIG. 11, the end height dimension T <b> 1 is a height direction dimension of the end portion of the release member 9 located on the lock portion 7 </ b> A side. The end height dimension T1 according to the present embodiment, that is, the height dimension of the pressing portion 9A is the height dimension of the portion of the release member 9 where the height dimension is the smallest. And the height dimension of the cancellation | release member 9 is so large that it goes to the fulcrum part 9B from the press part 9A.

  As shown in FIG. 15, the restriction portion 56 according to the present embodiment is provided on each of the pair of side wall portions 5A and 5B. That is, the first restricting portion 56A is provided on the side wall portion 5A. The second restricting portion 56B is provided on the side wall portion 5B.

  And the 1st control part 56A is comprised by the protrusion piece which protrudes from the side wall part 5A to the side wall part 5B side. The second restricting portion 56B includes a protruding piece that protrudes from the side wall portion 5B toward the side wall portion 5A.

  The protruding pieces constituting the first restricting portion 56A and the second restricting portion 56B are inclined with respect to the height direction. The first restricting portion 56A and the second restricting portion 56B are cut and raised pieces cut and raised from the side wall portions 5A and 5B, and the root side 56C is positioned on the upper side in the vertical direction from the tip 56D.

  For this reason, 56 A of 1st control parts and the 2nd control part 56B are inclined with respect to the height direction so that it may approach each side wall part 5A, 5B, so that the base side 56C is approached. Hereinafter, the first restricting portion 56A and the second restricting portion 56B are collectively referred to as the restricting portion 56.

  As shown in FIG. 9, the restricting portion 56 is provided at a position that can contact the linear portion 73 and the leading end side in the extending direction of the linear portion 73. The release member 9 is provided with a sliding contact portion 9J with which the first locking portion 74 can come into sliding contact.

  The sliding contact portion 9J is provided in a portion of the release member 9 on the first elastic deformation portion 7B side and extending from the lock portion 7A side to the locking groove 9C. Specifically, as shown in FIG. 11, portions on both ends in the width direction of the lower surface from the pressing portion 9A to the locking groove 9C correspond to the sliding contact portion 9J.

<Assembly method>
In the operation of assembling the release member 9 to the movable rail 5, an operator or the like first places the lock spring 7 on the movable rail 5 in a state where the cover wall portion 5 </ b> C of the movable rail 5 is disposed on the lower side in the vertical direction. Assemble.

  Specifically, the operator or the like engages the engaging portions 71 and 72 of the lock portion 7A with the notches 51 and 52 and locks the second locking portion 76 of the second elastic deformation portion 7C. Locks to the portion 55A. At this time, the 1st elastic deformation part 7B will be in the state which the front end side of the linear part 73 and the linear part 73 contacted the control part 56 (refer FIG. 15).

  Next, an operator or the like inserts the pressing portion 9A of the release member 9 into the gap between the lock spring 7 and the lid wall portion 5C. At this time, the release member 9 is inserted to the lock portion 7A side while the first locking portion 74 is in sliding contact with the sliding contact portion 9J and the top of the fulcrum portion 9B is in sliding contact with the lid wall portion 5C. .

  Then, when the first locking portion 74 is fitted in the locking groove 9C, the operation of inserting the release member 9 is completed. In addition, since the force required for insertion will increase rapidly when the 1st latching | locking part 74 fits in the latching groove 9C, the operator etc. fit the 1st latching | locking part 74 in the latching groove 9C. I sense it easily.

7). Characteristics of Slide Device for Seat According to this Embodiment In this embodiment, as shown in FIG. 13, the first locking portion 74 is sandwiched between the first locked surface 9D and the second locked surface 9E. It becomes composition. For this reason, even when a force in the direction of pulling out the release member 9, that is, when a pulling force acts on the release member 9, a bending moment that increases the angle formed by the first locking portion 74 and the linear portion 73. However, it is difficult to act on the first locking portion 74.

  Therefore, in the present embodiment, the base portion of the first locking portion 74 is not subjected to the pulling force due to the bending stress generated at the connecting portion between the first locking portion 74 and the linear portion 73, but the base portion. It becomes the structure which can receive the said extraction force with the shearing force which generate | occur | produces in the cross section of a part. As a result, it is possible to obtain the seat slide device 1 capable of suppressing a significant decrease in the locking force.

  The cross-sectional shape of the locking groove 9C portion of the releasing member 9 is a closed cross-sectional shape, and the locking groove 9C and the releasing member 9 are a metal integrally formed product. Accordingly, the first locked surface 9D and the second locked surface 9E can be easily formed, and the rigidity of the release member 9 can be increased.

  The first locking portion 74A and the second locking portion 74B are disposed at positions that can contact the first locked surface 9D and the second locked surface 9E. As a result, the leading ends of the first locking portion 74A and the second locking portion 74B are positioned in the locking groove 9C, so that the locking portions 74A, 74B and the linear portions 73A, 73B are formed. A bending moment that increases the angle is unlikely to act on the first locking portion 74.

  As shown in FIG. 12, the position where the first locking portion 74 contacts the first locked surface 9 </ b> D and the second locked surface 9 </ b> E is one end in the height direction and the other height direction of the release member 9. The position is between. Accordingly, the height dimension of the movable rail 5, that is, the seat slide device 1, compared to the configuration in which the first locking portion 74 is locked to the release member 9 at a position shifted in the height direction from the release member 9. Can be made smaller.

  When the pair of side wall portions 5A and 5B come into contact with each linear portion 73, the first locking portion 74 is separated from the first locked surface 9D and the second locked surface 9E as shown in FIG. Displacement in the direction is restricted. As a result, it is possible to reliably hold a configuration in which a bending moment that increases the angle formed by the first locking portion 74 and the linear portion 73 does not easily act on the first locking portion 74.

  As shown in FIG. 9, the first restricting portion 5G and the second restricting portion 5H are provided between the first locked surface 9D or the second locked surface 9E and the lock portion 7A. Thereby, the release member 9 is restricted from being displaced in a direction substantially parallel to the protruding direction of the first locking portion 74 with respect to the movable rail 5. Therefore, it is possible to reliably hold a configuration in which a bending moment that increases the angle formed by the first locking portion 74 and the linear portion 73 does not easily act on the first locking portion 74.

  As shown in FIG. 12, inclined guide surfaces 9G and 9H are provided on one end side in the height direction of each of the first locked surface 9D and the second locked surface 9E (the lower end side in this embodiment). ing. Thereby, the 1st latching | locking part 74 can be easily mounted in the latching groove 9C.

  As shown in FIG. 15, a restricting portion 56 is provided that restricts the distance between the first elastically deforming portion 7 </ b> B and the lid wall portion 5 </ b> C from being equal to or less than the end height dimension T <b> 1 of the release member 9. Thereby, an operator or the like can easily insert and assemble the release member 9 into the movable side rail 5 from one end side in the longitudinal direction of the movable side rail 5.

  That is, when the operator or the like inserts the release member 9 into the movable rail 5, if the first elastic deformation portion 7B is close to the lid wall portion 5C, the first elastic deformation portion 7B becomes an obstacle. Thus, the release member 9 cannot be inserted into the movable rail 5.

  However, in the present embodiment, the regulating portion 56 that regulates that the distance between the first elastically deforming portion 7B and the lid wall portion 5C is equal to or less than the end height T1 of the release member 9 is the longitudinal direction of the movable rail 5 It is provided on one end side.

  For this reason, when the cancellation | release member 9 is inserted in the movable side rail 5, it can suppress that the 1st elastic deformation part 7B becomes an obstruction. Accordingly, the release member 9 can be easily inserted into the movable rail 5. In addition, an operator etc. means the automatic assembly apparatus or assembly worker etc. which perform the assembly | attachment operation | work of the cancellation | release member 9. FIG.

  The restricting portion 56 is configured by a protruding piece that protrudes from the one side wall portion 5A, 5B to the other side wall portion 5A, 5B of the pair of side wall portions 5A, 5B. Inclined with respect to the height direction.

  Thereby, the linear part 73 which contacted the control part 56 can be in the state pinched | interposed by the control part 56 and each side wall part 5A, 5B. Therefore, the first elastic deformation portion 7B can be reliably prevented from interfering with the insertion of the release member 9.

  In the part of the release member 9 that is on the first elastic deformation portion 7B side and extends from the lock portion 7A side to the locked portion 9C, a sliding contact portion 9J that allows the first locking portion 74 to come into sliding contact is provided. Yes. As a result, the release member 9 can be easily inserted into the movable rail 5.

  By the way, in Patent Document 1, the cut-and-raised piece to which the portion corresponding to the second locking portion 76 is locked is such that the side wall portion and the connecting portion are located on the lower side in the vertical direction than the tip portion, that is, on the fixed rail side. It is cut and raised from the side wall portion to form an L shape.

  And when the length from the connecting portion to the tip portion along the L-shaped cut and raised piece is “necessary cut and raised length”, the portion where the cut and raised piece is provided is necessarily “necessary” A through hole larger than the “cut-and-raised length” (hereinafter referred to as a cut-and-raised hole) is formed.

  For this reason, in the invention described in Patent Document 1, it is difficult to make the vertical dimension of the movable rail smaller than the “necessary cut and raised length”. That is, if the vertical dimension of the movable rail is made smaller than the “necessary cut and raised length”, the cut and raised hole reaches the lid wall.

  For this reason, the sectional secondary moment of the movable rail becomes small, and the bending rigidity of the movable rail may be greatly reduced. Therefore, it is difficult to reduce the vertical dimension of the movable rail.

  In contrast, in the present embodiment, the cut-and-raised piece 55 is formed so that the connecting portion 55B with the side wall portions 5A and 5B is located on the other end side in the longitudinal direction of the movable rail 5 from the tip portion 55C. .

  Since the seat slide device 1 is mounted on the vehicle or the like so that the direction substantially parallel to the opening direction of the movable rail 5 from the lid wall 5C side coincides with the vertical direction, The direction of “length” coincides with the horizontal direction, that is, the longitudinal direction of the movable rail 5.

  Accordingly, since the cut-and-raised hole can be prevented from reaching the cover wall portion 5C, the vertical dimension of the movable-side rail 5 can be reduced while suppressing the bending rigidity of the movable-side rail 5 from being lowered. Is possible.

  Further, the cut and raised piece 55 is formed such that the connecting portion 55B with the side wall portions 5A and 5B is located on the other end side in the longitudinal direction of the movable rail 5 from the tip portion 55C. When the 7C is locked to the locked portion 55A and when the second elastic deformation portion 7C is elastically deformed, it is possible to suppress the cut and raised piece 55 from becoming an obstacle.

(Second Embodiment)
The first locked surface 9D and the second locked surface 9E according to the above-described embodiment constitute a wall surface that continues from one end to the other end of the release member 9 in the width direction. On the other hand, as shown in FIG. 16, the release member 9 according to the present embodiment includes a connecting portion 9K that connects the first locked surface 9D and the second locked surface 9E.

  The connecting portion 9K according to the present embodiment connects the substantially central portion in the width direction of the first locked surface 9D and the substantially central portion in the width direction of the second locked surface 9E. The connecting portion 9K connects the first locked surface 9D and the second locked surface 9E in the entire depth direction of the locking groove 9C (in this embodiment, the vertical direction).

  The connecting portion 9K according to the present embodiment is an integrally molded product with the first locked surface 9D and the second locked surface 9E, as shown in FIGS. 17A and 17B. That is, the connecting portion 9K, the first locked surface 9D, and the second locked surface 9E are portions integrally formed with the release member 9 by plastic processing.

  Thereby, it can relieve | moderate that stress concentrates on the connection location of the bottom part 9F of 9 C of latching grooves, 1D to-be-latched surface 9D, and 2nd to-be-latched surface 9E. Therefore, it can suppress that the crack by fatigue etc. generate | occur | produces in a connection location.

  Incidentally, since the locking groove 9C according to the present embodiment is formed by applying plastic working to the release member 9, the toughness of the connecting portion is lowered due to work hardening. For this reason, cracks due to fatigue or the like are likely to occur at the above-mentioned connection locations.

  However, in this embodiment, since it can relieve | stress that stress concentrates on the said connection location, it can suppress that the crack by fatigue etc. generate | occur | produces in the said connection location. Note that the same constituent elements as those of the above-described embodiment are denoted by the same reference numerals as those of the above-described embodiment, and thus redundant description is omitted.

(Third embodiment)
The seat slide device 100 according to this embodiment shown in FIG. 18 has the same configuration as the seat slide device described in Japanese Patent Application Laid-Open No. 2013-166434, except for the connection structure between the release lever 105 and the loop handle 101.

  Since the same constituent elements as those of the above-described embodiment are denoted by the same reference numerals as those of the above-described embodiment, the description overlapping with the above-described embodiment is omitted in the following description. Hereinafter, the seat slide device 100 according to the present embodiment will be described focusing on differences from the seat slide device described in JP2013-166434A.

1. Configuration of Seat Slide Device As shown in FIG. 19, a seat slide device 100 includes a lock spring 106 having a fixed side rail 3, a movable side rail 5, and a lock portion 7A, a release lever 105, a loop handle 101, and a leaf spring. 103 or the like.

  As shown in FIG. 18, the loop handle 101 is an example of an operation unit coupled to one end side in the extending direction of the release lever 105 (in the present embodiment, the seat front side), and is a handle operated by a user. is there.

  That is, the operation unit 13 according to the above-described embodiment is an integrally molded product with the release member 9. On the other hand, in this embodiment, the loop handle 101 is connected to the release lever 105 via the leaf spring 103 as shown in FIG.

  The release lever 105 is a member for displacing the lock portion 7A to the release position side. The lock spring 106, the release lever 105, and the plate spring 103 have the same structure as the lock spring, the release lever, and the plate spring described in JP2013-166434A, and thus detailed description thereof is omitted.

  The leaf spring 103 is a member that connects the loop handle 101 to the release lever 105. As shown in FIG. 21, the leaf spring 103 has a substantially U-shaped or substantially J-shaped main body 103 </ b> A for supporting the loop handle 101.

  The main body portion 103A is provided with a first locking piece 103B and a second locking piece 103C that protrude from the main body portion 103A in a direction substantially orthogonal to the extending direction of the loop handle 101 (in this embodiment, the seat width direction). It has been.

  Specifically, the first locking piece 103B is a protruding piece that protrudes from the main body portion 103A to the left side of the seat. The second locking piece 103C is a protruding piece that protrudes from the main body portion 103A to the right side of the seat.

  In addition, the 1st locking piece 103B and the 2nd locking piece 103C are the same as the downward locking piece (75) of Unexamined-Japanese-Patent No. 2013-166434. Reference numerals in parentheses are those of JP 2013-166434 A.

  As shown in FIG. 22, the loop handle 101 is provided with a locking portion 102. The locking portion 102 is a portion where the first locking piece 103B and the second locking piece 103C are hooked and locked.

  The locking portion 102 has at least a first locked surface 102A, a second locked surface 102B, a connecting portion 102D, and the like. The first locked surface 102A and the second locked surface 102B are surfaces substantially orthogonal to the extending direction of the loop handle 101, that is, the seat front-rear direction.

  The first locked surface 102A is a surface that can contact the first locking piece 103B and the second locking piece 103C from one end side in the extending direction. The second locked surface 102B faces the first locked surface 102A in the extending direction and is a surface that can contact the first locking piece 103B and the second locking piece 103C from the other end side in the extending direction. It is.

  The connecting portion 102D is a wall portion that extends in a direction parallel to the extending direction and connects the first locked surface 102A and the second locked surface 102B. The connecting portion 102D according to the present embodiment connects the central portion of the first locked surface 102A and the central portion of the second locked surface 102B in the sheet width direction (left-right direction). That is, the locking portion 102 according to the present embodiment has the same configuration as the locking groove 9C according to the second embodiment.

  Note that the loop handle 101 according to the present embodiment is an integrally molded product including a locking portion 102 (a first locked surface 102A, a second locked surface 102B, and a connecting portion 102D). Specifically, a tube such as a round pipe is plastically processed, and the locking portion 102 is integrally formed with the loop handle 101.

2. Features of Seat Slide Device The locking groove (67) described in Japanese Patent Application Laid-Open No. 2013-166434 is constituted by a “notch” provided in a pipe material constituting the loop handle (60). For this reason, a crack due to stress concentration may occur in the locking groove (67).

The locking groove (67) corresponds to the locking portion 102 of the present embodiment. Reference numerals in parentheses are those of JP 2013-166434 A.
On the other hand, since the latching | locking part 102 which concerns on this embodiment has connection part 102D, it can relieve | moderate that stress concentrates on the latching | locking part 102. FIG. Therefore, it is possible to suppress the occurrence of cracks due to fatigue or the like in the locking portion 102.

(Other embodiments)
The first locked surface 9D and the second locked surface 9E according to the above-described embodiment constitute a wall surface that continues from one end to the other end of the release member 9 in the width direction. However, this invention is not limited to this, For example, the structure by which the width direction intermediate part of 9D of 1st to-be-latched surfaces and the 2nd to-be-latched surface 9E was cut | disconnected may be sufficient.

  That is, since the first locking portion 74 may be configured to be sandwiched between the first locked surface 9D and the second locked surface 9E (hereinafter referred to as a sandwiched configuration), the first locked surface is sufficient. The width direction length of 9D and the 2nd to-be-latched surface 9E should just be sufficient length to materialize a clamping structure. In addition, the said length is more than the outermost diameter dimension of the 1st latching | locking part 74 at least, for example.

  In the above-described embodiment, the first locked surface 9D and the second locked surface 9E together with the release member 9 constitute an integrally molded product. However, this invention is not limited to this, For example, the following structures (a)-(c) etc. may be sufficient.

(A) Configuration in which the first locked surface 9D and the second locked surface 9E manufactured as separate parts are assembled and fixed by a joining process such as welding or a mechanical fastener such as a screw. (B) Release When the member 9 is configured to have a C-shaped or U-shaped open cross-sectional shape like the movable-side rail 5, the side wall of the release member 9 is cut and raised to form the first locked surface 9D and the second locked surface 9D. Configuration in which locked surface 9E and release member 9 are integrally formed (c) In the case where release member 9 has a C-shaped or U-shaped open cross-sectional shape in the same manner as movable rail 5 A configuration in which the first locked surface 9D and the second locked surface 9E and the release member 9 are integrally formed by performing a burring process or the like on the side wall of the release member 9 In the above-described embodiment, the release member 9 Among them, the cross-sectional shape of the locking groove 9C portion was a closed cross-sectional shape. However, the present invention is not limited to this, and a C-shaped or U-shaped release cross-section release member 9 may be employed.

  In the above-described embodiment, the first locking portion 74A and the second locking portion 74B are located at portions that can contact the first locked surface 9D and the second locked surface 9E, and the first engagement portion. The distal end of the stop portion 74A and the distal end of the second locking portion 74B were located at the center in the extending direction of the locking groove 9C.

  However, the present invention is not limited to this. For example, the linear portion 73 is configured by a single member, and the first locking portion 74 provided on the single linear portion 73 includes: The structure which can contact the 1st to-be-latched surface 9D and the 2nd to-be-latched surface 9E may be sufficient.

The 1st latching | locking part 74 which concerns on the above-mentioned embodiment was comprised including 74 A of 1st latching | locking parts, and the 2nd latching | locking part 74B.
However, the present invention is not limited to this, and only one of the first locking portion 74A and the second locking portion 74B or a configuration similar to the second locking portion 76 may be used. Good. Further, the second locking portion 76 may be constituted by two second locking portions 76 in the same manner as the first locking portion 74.

  The connecting portion 9K according to the second embodiment connects the substantially central portion in the width direction of the first locked surface 9D and the substantially central portion in the width direction of the second locked surface 9E. However, the present invention is not limited to this. That is, for example, the connecting portion 9K that connects one end in the width direction of the first locked surface 9D and one end in the width of the second locked surface 9E may be used.

  The connecting portion 9K according to the second embodiment connects the first locked surface 9D and the second locked surface 9E across the entire depth direction of the locking groove 9C. However, the present invention is not limited to this. That is, for example, the connecting portion 9K that connects the lower end of the first locked surface 9D and the lower end of the second locked surface 9E may be used. The lower ends of the first locked surface 9D and the second locked surface 9E are the opening side of the locking groove 9C.

  In the above-described embodiment, the pair of side wall portions 5 </ b> A and 5 </ b> B constitutes a wall surface that is substantially orthogonal to the protruding direction of the first locking portion 74 and restricts the position of the first locking portion 74. However, the present invention is not limited to this, and for example, a part for regulating the position of the first locking portion 74 may be separately provided.

  In the above-described embodiment, the first locked surface 9D and the second locked surface 9E are inclined with respect to the first locked surface 9D and the second locked surface 9E on one end side in the height direction. The guide surfaces 9G and 9H were provided. However, the present invention is not limited to this, and the guide surfaces 9G and 9H may be eliminated.

  In the above-described embodiment, the position where the first locking portion 74 contacts the first locked surface 9D and the second locked surface 9E is the upper end of the release member 9 at the portion where the locking groove 9C is provided. And the position between the bottom edge. However, the present invention is not limited to this.

  That is, for example, the upper end or the lower end of the first locked surface 9D and the second locked surface 9E extend to a position shifted in the height direction with respect to the release member 9, and the first engagement is applied to the extended portion. The structure which the stop part 74 contacts may be sufficient.

  In the above-mentioned embodiment, the 1st control part 5G and the 2nd control part 5H were provided in the movable side rail 5. FIG. However, the present invention is not limited to this, and the first restricting portion 5G and the second restricting portion 5H may be eliminated.

  Each cut and raised piece 55 according to the above-described embodiment is cut and raised so that the connecting portion 55B with the side wall portions 5A and 5B is located on the other end side in the longitudinal direction of the movable rail 5 from the tip portion 55C. It was formed in a substantially L shape.

  However, the present invention is not limited to this. For example, the connecting portion 55B connected to each of the side wall portions 5A and 5B is cut and raised so as to be positioned on one end side in the longitudinal direction of the movable rail 5 from the tip portion 55C. It may be a configured.

  In the above-described embodiment, the cut and raised pieces 55 are provided on the respective side wall portions 5A and 5B. However, the present invention is not limited to this, and it is sufficient if it is provided on any one of the side walls 5A and 5B.

  In the above-described embodiment, the restricting portion 56 is provided on each of the pair of side wall portions 5A and 5B as shown in FIG. However, the present invention is not limited to this, and may have a configuration in which the restricting portion 56 is provided on any one of the side wall portions 5A and 5B, or a configuration in which the restricting portion 56 is eliminated.

  The restricting portion 56 according to the above-described embodiment is provided at a position where the linear portion 73 and the linear portion 73 can be in contact with the front end side in the extending direction. However, this invention is not limited to this, For example, the structure which can contact only any one among the linear part 73 and the extension direction front end side of the said linear part 73 may be sufficient.

  Each regulation part 56 concerning the above-mentioned embodiment was constituted by the protruding piece by which a part of side wall parts 5A and 5B were cut and raised, and was inclined to the height direction. However, the present invention is not limited to this, and for example, each restricting portion 56 may be formed of a separate member and assembled to the movable side rail 5.

  In the above-described embodiment, the sliding contact portion 9J is provided at a portion from the lock portion 7A side to the locking groove 9C. However, the present invention is not limited to this, and the sliding contact portion 9J may be eliminated.

  In the lock spring 7 according to the above-described embodiment, the first elastic deformation portion 7B, the lock portion 7A, and the second elastic deformation portion 7C are integrally formed products formed by bending one wire. .

  However, the present invention is not limited to this. For example, the first elastic deformation portion 7B, the lock portion 7A, and the second elastic deformation portion 7C may be manufactured as separate parts and then assembled and integrated. Moreover, you may abolish the 2nd elastic deformation part 7C.

  The wire constituting the lock spring 7 according to the above-described embodiment has a circular cross-sectional shape. However, this invention is not limited to this, For example, you may comprise the lock spring 7 with the wire of rectangular cross-sectional shape.

  The 1st elastic deformation part 7B and the 2nd elastic deformation part 7C were elastic deformation parts constituted by having linear line parts 73 and 75. However, this invention is not limited to this, For example, you may comprise the 1st elastic deformation part 7B and the 2nd elastic deformation part 7C with a strip | belt-plate-shaped leaf | plate spring.

The release member 9 according to the above-described embodiment is an integrally molded product that is integrally molded with the operation unit 13. However, the present invention is not limited to this. For example, the operation unit 13 is configured as a separate part that can be detached from the release member 9, or the loop handle or the like is replaced with the operation unit 13 by the release member 9. The structure etc. which can be attached to may be sufficient.

  The fixed rail 3 and the movable rail 5 according to the above-described embodiment were made of metal. However, the present invention is not limited to this, and may be composed of a material such as a resin.

  In the above-described embodiment, the present invention is applied to a seat slide device that slidably supports a rear seat of an automobile. However, the application of the present invention is not limited to this, and the present invention can also be applied to vehicle seats such as automobile front seats, railway vehicle seats, aircraft seats, and ship seats.

  The present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 ... Seat slide apparatus 3 ... Fixed side rail 3D ... Open cross-section part 3A ... Side wall part 3C ... Lid wall part 3B ... Side wall part 3E ... Opposite wall 5 ... Movable side rail 5D ... Open cross-section part 5F ... Track part 5A ... Side wall Part 5B ... Side wall part 5C ... Lid wall part 5G ... First restriction part 5H ... Second restriction part 7 ... Lock spring 7A ... Lock part 7B ... First elastic deformation part 7C ... Second elastic deformation part 9 ... Release member 9A ... Pressing portion 9B ... supporting point 9C ... locking groove 9D ... first locked surface 9E ... second locked surface 9F ... bottom 9G ... guide surface 9J ... sliding portion 13 ... operating portion 31 ... notch 32 ... Engagement piece 51 ... Notch part 52 ... Notch part 53 ... Engagement piece 54 ... Engagement piece 55 ... Cut-and-raised piece 55A ... Locked part 55B ... Linking part 55C ... Tip part 55D ... Through hole 56 ... Restriction part 56A ... 1st regulation part 6B: second regulating portions 71, 72 ... engaging portion 73 ... linear portion 74 ... first engaging portion 75 ... linear portion 76 ... second engaging portion

Claims (9)

In the seat slide device for supporting the seat slidably,
A fixed rail,
A movable rail that is slidable relative to the fixed rail, the movable rail for supporting the seat;
A lock portion that is displaceable between a restriction position that restricts the movable rail from sliding relative to the fixed rail and a release position that releases the restriction;
An elastically deformable portion that is elastically deformable between a state in which the lock portion is supported at the restriction position and a state in which the lock portion is supported at the release position, and a direction substantially parallel to the longitudinal direction of the movable rail An elastically deformable linear portion extending in the direction, and an elastically deformable portion having a locking portion protruding in a direction substantially orthogonal to the extending direction from the extending direction front end side of the linear portion,
A release member for switching the deformed state of the elastically deforming portion, a first locked surface that can contact the locking portion from one end in the extending direction, and the locking portion from the other end in the extending direction And a release member having a second locked surface that can contact the sheet. The first locked surface and the second locked surface constitute a side wall portion of a locking groove extending in a direction substantially orthogonal to the extending direction,
The cross-sectional shape of the locking groove portion of the release member is a closed cross-sectional shape,
The seat slide device according to claim 1, wherein the locking groove and the release member are integrally formed. The linear portion has a first linear portion provided on one side with the release member interposed therebetween, and a second linear portion provided on the other side with the release member interposed therebetween,
The locking portion has a first locking portion provided in the first linear portion and a second locking portion provided in the second linear portion,
3. The seat according to claim 1, wherein the first locking portion and the second locking portion are disposed at positions that can contact the first locked surface and the second locked surface. Slide device. When the direction of extension of the linear part and the direction substantially perpendicular to the protruding direction of the locking part is the height direction,
The position at which the locking portion contacts the first locked surface and the second locked surface is a position between one height direction end and the other height direction end of the release member. The sheet slide device according to any one of 1 to 3. The movable rail has a wall surface substantially orthogonal to the protruding direction of the locking portion,
2. The wall surface is capable of regulating displacement of the locking portion in a direction away from the first locked surface and the second locked surface by contacting the linear portion. 5. The sheet slide device according to any one of items 4 to 4. The movable rail has a first restricting portion and a second restricting portion that restrict the displacement of the release member in a direction substantially parallel to the protruding direction of the locking portion with respect to the movable rail. ,
The said 1st control part and the said 2nd control part are any one of Claim 1 thru | or 5 provided between the said lock part and the said 1st to-be-latched surface or the said 2nd to-be-latched surface. The slide apparatus for seats as described in 2. When the direction of extension of the linear part and the direction substantially perpendicular to the protruding direction of the locking part is the height direction,
A guide surface inclined with respect to the first locked surface and the second locked surface is provided at one end in the height direction of each of the first locked surface and the second locked surface. The seat slide device according to any one of claims 1 to 6.   The seat slide device according to any one of claims 1 to 7, further comprising a connecting portion that connects the first locked surface and the second locked surface. In the seat slide device for supporting the seat slidably,
A fixed rail,
A movable rail that is slidable relative to the fixed rail, the movable rail for supporting the seat;
A lock portion that is displaceable between a restriction position that restricts the movable rail from sliding relative to the fixed rail and a release position that releases the restriction;
A release lever for displacing the lock portion toward the release position;
A handle connected to the release lever and operated by a user;
A leaf spring having a substantially U-shaped or substantially J-shaped main body portion for connecting the handle to the release lever and supporting the handle, and substantially perpendicular to the extending direction of the handle from the main body portion A leaf spring having a pair of locking pieces protruding in the direction to be locked to the handle;
A locking portion provided on the handle, the first locked surface that can contact the pair of locking pieces from one end side in the extending direction of the handle, and the pair of locking from the other end side in the extending direction A seat slide device comprising: a second locked surface that can come into contact with the piece; and a locking portion having a connecting portion that connects the first locked surface and the second locked surface.

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