JP5448694B2 - Assembly structure of unlocking operation member for vehicle seat and lock / unlock device for vehicle seat - Google Patents

Description

  The present invention relates to an assembling structure of a vehicle seat unlocking operation member for unlocking a seat of a vehicle such as an automobile provided to be slidable back and forth, and a vehicle seat locking / unlocking device having the assembling structure. It is about.

  Conventionally, for example, a lock / unlock device has been attached to the seat of an automobile. With this lock / unlock device, the seat is locked and cannot be moved in the front-rear direction, and is also unlocked (unlocked) before and after. The direction is movable.

  As this seat locking / unlocking device, for example, there is one proposed in Patent Document 1. This is a long lock release operation member (lock plate) integrally formed with a lock member (locking plate) at the tip, and is supported on the upper rail (upper channel) by a shaft (shaft). The seat fixed to the upper rail is locked by moving the lock teeth provided on the lower rail (lower channel) into the lock hole provided in the lock member by the spring's biasing force. Make it impossible. On the other hand, by holding the unlocking operation member and moving it against the urging force of the leaf spring, the locking member can be released from the locking teeth, and the seat can be unlocked and moved forward and backward. (See Patent Document 1 and FIG. 2).

JP 2001-158259 A

  By the way, a folded piece (wing member) folded back outward and upward from the side wall of the upper rail, for example, may be provided on the side wall of the upper rail. Such a folded piece is often provided because it is useful for preventing separation of the upper rail and the lower rail, or for sliding the upper rail and the lower rail via a ball.

  However, since the unlocking operation member described in Patent Document 1 is pivotally supported by the shaft on the upper rail, for example, when the folding height of the folding piece becomes high, the folding piece becomes an obstacle. Thus, it becomes difficult to insert the shaft for pivotally supporting the unlocking operation member and the upper rail into the holes provided in both.

  The present invention relates to a vehicle seat unlocking operation member mounting structure and a vehicle in which the unlocking operation member can be rotatably assembled to the upper rail without the folding piece being in the way even when the upper rail has the folding piece. An object of the present invention is to provide a locking / unlocking device for an automobile seat.

  In addition, the present invention provides a vehicle seat lock that can more reliably maintain the locking state between the lock member and the lock tooth even when the unlocking operation member moves unexpectedly due to a sudden contact with the unlocking operation member. An object of the present invention is to provide a mounting structure for an unlocking operation member for a vehicle seat suitable for the unlocking device and the vehicle seat locking / unlocking device.

  In order to solve the above-mentioned problem, the invention of claim 1 is provided in such a manner that it is slidably disposed on a lower rail fixed to a vehicle and is rotatably assembled between left and right side walls of an upper rail fixed to a seat, and is locked to each other. An assembly structure of an unlocking operation member for a vehicle seat for unlocking the lower rail and the upper rail, wherein the unlocking operation member disposed between the left and right side walls is rotatably sandwiched. The holding means includes a rotating portion having arc portions provided on both upper and lower sides of the unlocking operation member, and an upper wall provided on the upper rail and holding the rotating portion from above. A clamping member that clamps the rotating part from below, and the clamping member has both ends arranged in the upper holes in the left and right side walls. Are inserted between the left and right side walls through an opening provided below the left and right side walls, and the circular arc part has each of the upper wall and the clamping member around the rotation axis of the rotation part. A structure for assembling an unlocking operation member for a vehicle seat, which is configured to be slidable.

  According to a second aspect of the present invention, there is provided the structure for assembling the vehicle seat unlocking operation member according to the first aspect, wherein the upper wall prevents movement of the rotating portion relative to the upper wall in the front-rear direction. It is characterized by having.

  According to a third aspect of the present invention, in the assembly structure of the vehicle seat unlocking operation member according to the first or second aspect, the rotating portion includes opposing walls facing the left and right side walls of the upper rail, Each of the opposing walls is provided with a protrusion that protrudes in the direction of the left and right side walls of the upper rail.

  The invention of claim 4 is a lock / unlock device for a vehicle seat comprising the assembly structure of the unlocking operation member according to any one of claims 1 to 3 and a lock / unlock device main body, The lock / unlock device main body includes a plurality of lock teeth provided on the lower rail, and a lock member provided on the upper rail and detachably engaged with the lock teeth. The lock release operation member is configured separately from the lock release operation member, and is arranged to move in a range from the lock position locked with the lock tooth to the lock release position where the lock is released. The member includes a pressing portion that presses the locking member, and the pressing portion is disposed at a position separated from the locking member at the locking position by a predetermined distance, and the unlocking operation member. A vehicular seat configured to be able to move from the locking position of the lock member toward the locking release position during rotation to press the locking member at the locking position to the locking release position. This is a lock / unlock device.

  According to a fifth aspect of the present invention, there is provided the vehicle seat locking / unlocking apparatus according to the fourth aspect, wherein the vehicle seat locking / unlocking apparatus is configured such that the pressing portion of the unlocking operation member is moved to the locking release position. A first urging member that urges the locking member from the unlocking position to the locking position at the tip of the first urging member. It has a holding part holding a lock member so as to obtain.

  According to a sixth aspect of the present invention, there is provided the vehicle seat locking / unlocking device according to the fifth aspect, wherein the vehicle seat locking / unlocking device includes a first arm and a second arm. A spring; and the first biasing member includes the first arm; the holding portion is provided at a tip of the first arm; and the second arm locks the pressing portion. A second biasing member that biases from the position in the direction of the unlocking position is configured.

  According to the first aspect of the present invention, it is provided with the clamping means for rotatably holding the unlocking operation member disposed between the left and right side walls, and the clamping means has the arc portions on both the upper and lower sides of the unlocking operation member. A rotating part that is provided on the upper rail and that clamps the rotating part from above, and a clamping member that clamps the rotating part from below.

  Thereby, the unlocking operation member can be rotatably assembled to the upper rail.

  In addition, the clamping member is inserted into the locking holes provided on both the left and right side walls of the upper rail so that both ends are spread between the left and right side walls from the opening provided below the upper rail. Therefore, even when the folded pieces with high height are provided on the left and right side walls of the upper rail, the clamping member can be locked to the upper rail without the folded pieces being in the way.

  According to a second aspect of the present invention, the upper wall includes movement preventing means for preventing the rotation portion from moving in the front-rear direction with respect to the upper wall.

  Thereby, the turning part of the unlocking operation member can hardly move in the front-rear and left-right directions with respect to the upper rail, and the turning part of the unlocking operation member can be smoothly turned.

  According to a third aspect of the present invention, the rotating portion includes opposing walls facing the left and right side walls of the upper rail, and the opposing walls include protrusions protruding in the directions of the left and right side walls of the upper rail, respectively. ing.

  As a result, when the rotating part of the unlocking operation member rotates the upper rail, the protrusions can be brought into contact with the left and right side walls, and the rotation resistance can be prevented from increasing. It can be rotated smoothly.

  According to the fourth aspect of the present invention, the lock member is formed separately from the lock release operation member, and moves in a range from the lock position locked with the lock tooth to the lock release position unlocked. It is possible to arrange. The pressing portion of the unlocking operation member is disposed at a position separated from the locking member at the locking position by a predetermined distance, and the locking member at the locking position is moved when the unlocking operation member moves along with the rotation. It is configured so that it can be moved to the unlocking position by pressing.

  As a result, even if the unlocking operation member moves slightly, it is separated from the locking member at the locking position by a predetermined distance, so that the locking member at the locking position is moved without pressing the locking member at the locking position. It can be something that can't be operated.

  Therefore, for example, when the lock member is formed integrally with the unlocking operation member, there is no so-called play between the two, so that if the foot suddenly hits the unlocking operation member, the locking member will move. Although locking with the lock teeth is likely to be released, even in such a case, the lock member does not move, and the locked state with the lock teeth can be more reliably maintained.

  Also, when the unlocking operation is performed by the unlocking operation member, the unlocking operation member is gripped and the unlocking operation member is rotated, and the pressing portion starts to press the locking member at the locking position. When the unlocking operation is started, the resistance applied to the unlocking operation increases. As a result, the operator can sensuously know that the lock member has started to be released. Therefore, for example, when the lock member is integrated with the unlocking operation member, it is difficult for the operator to know whether or not the lock member has started to be unlocked, and the operator moves the seat forward or backward. Therefore, it is possible to prevent the timing at which the force is applied from being difficult to understand, and the seat can be smoothly moved back and forth.

  According to the fifth aspect, the first urging member for urging the pressing portion of the unlocking operation member from the locking release position toward the locking position is further provided. The first biasing member includes a holding portion that holds the lock member at the tip thereof so that the lock member can be biased in the direction from the latch release position to the latch position.

  Thus, the pressing portion of the unlocking operation member can be biased by the first biasing member, and the lock member separate from the unlocking operation member can be held so as to be biased in the direction of the locking position. . Therefore, the number of parts can be reduced, the assembly can be facilitated, and the manufacturing can be performed at low cost.

  According to the sixth aspect of the present invention, the first urging member includes the first arm of a bifurcated leaf spring having a first arm and a second arm. The second arm constitutes a second urging member that urges the pressing portion from the locking position toward the locking release position.

  Thereby, the pressing part urged by the first arm constituting the first urging member can be urged in the opposite direction by the second arm constituting the second urging member. Therefore, even when the unlocking operation member is subjected to vibration or the like during traveling, for example, the unlocking operation member can be prevented from rattling, and occurrence of abnormal noise can be prevented.

  In addition, since it is composed of a bifurcated leaf spring, the number of parts can be reduced, the assembly can be facilitated, and it can be manufactured at low cost.

It is a disassembled perspective view of one Embodiment of the locking / unlocking device of the vehicle seat which has the assembly structure of the unlocking operation member of this invention. It is a bottom view of the state which attached the main-body part of the lock release operation member to the upper rail. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. It is the VV line end view of FIG. It is the VI-VI line end view of FIG. (A) is a top view of a clamping member, (b) is a side view of a clamping member. It is explanatory drawing at the time of mounting | wearing a clamping member to an upper rail. It is sectional drawing of the state in which the press part of the lock release operation member contact | abutted to the lock member. FIG. 10 is an end view taken along line XX in FIG. 9. It is sectional drawing of the state which the press part of the lock release operation member pushed down the lock member to the upper rail, and the lock hole and the lock tooth of the lower rail were cancelled | released. FIG. 12 is a sectional view taken along line XII-XII in FIG. 11.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view of an embodiment of a vehicle seat locking / unlocking device having a structure for assembling an unlocking operation member according to the present invention, and FIG. 2 is a state in which the unlocking operation member is attached to an upper rail. 3 is a cross-sectional view taken along line III-III in FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.

  The vehicle seat locking / unlocking device of this embodiment is used for a vehicle seat (not shown). As shown in FIG. 1, a long lower rail 102 and a long upper rail 101 are used. And a lock member 1, an unlocking operation member 2, a leaf spring 3 as an urging member, and a clamping means for clamping the unlocking operation member 2 in a rotatable manner.

  The lower rail 102 is composed of a top opening having left and right side walls 102a and a bottom wall 102b. The lower rail 102 is provided with a pair of left and right inner walls 102c that are bent inward from the upper ends of the left and right side walls 102a.

  In this embodiment, a plurality of locking teeth 102d formed so as to be arranged along the longitudinal direction are provided at the lower ends of the inner walls 102c. In FIG. 1, the lock teeth 102d appear only on the inner wall 102c on the right side (shown on the left side in FIG. 1), but substantially the same lock teeth 102d are also provided on the left inner wall 102c.

  And in this embodiment, this lower rail 102 is being fixed to the floor of a motor vehicle so that a longitudinal direction may be along the front-back direction.

  The upper rail 101 has left and right side walls 101a and an upper wall 101b, and is formed so as to have a U-shaped cross section with the lower surface opened. The upper rail 101 is provided with a pair of left and right folded pieces 101c that are bent outward from the lower ends of the left and right side walls 101a.

  Further, the left and right side walls 101a are each provided with a locking hole 101f for locking a clamping member 27 described later as shown in FIGS.

  On the other hand, on the upper wall 101b, as shown in FIGS. 1 and 5, slip prevention for preventing the unlocking operation member 2 and the leaf spring 3 from slipping in the front-rear direction is provided above the locking hole 101f. As a means, a rectangular anti-slip hole 101g is provided.

  In this embodiment, the upper rail 101 has an upper wall 101b fixed to the lower end of the automobile seat, and the folded pieces 101c are provided between the side wall 102a and the inner wall 102c of the lower rail 102 as shown in FIG. It is possible to move (slide) in the longitudinal direction via a ball (not shown). The upper rail 101 slides on the lower rail 102 so that the seat fixed to the upper rail 101 can move in the front-rear direction.

  Next, the lock member 1 will be described. The lock member 1 is provided with a plurality (four in this embodiment) of lock holes 12 which are detachably engaged with the lock teeth 102d of the lower rail 102 on the distal end side on the left end side (right end side in FIG. 1). Yes. These lock holes 12 are large enough to allow the lock teeth 102d to enter, and are formed along the front-rear direction at positions corresponding to the lock teeth 102d.

  Further, the lock member 1 includes a columnar support shaft 13 supported by the upper rail 101 on the base end side on the right end side, and the support shaft 13 is rotatably supported by the upper rail 101.

  Specifically, as shown in FIG. 6, the left and right folded pieces 101c and the left and right side walls 101a of the upper rail 101 are provided with receiving holes 101e for receiving the lock member 1, respectively. A support portion 101d that rotatably supports the support shaft 13 is provided on the folded piece 101c on the right side (left side in FIG. 6) of the upper rail 101.

  The support portion 101d in this embodiment is formed on the outer side of the folded piece 101c so that the folded piece 101c of the upper rail 101 is recessed inward. The lock member 1 is passed through the receiving hole 101e of the right folded piece 101c of the upper rail 101 through the receiving hole 101e of the left and right side walls 101a and the receiving hole 101e of the left folded piece 101c and is supported by the support portion 101d. In this manner, the upper rail 101 is mounted.

  In this way, the lock member 1 can be mounted from the outside of the folded piece 101c of the upper rail 101, thereby facilitating the mounting operation. In addition, it is possible to prevent the support portion 101d or the support shaft 13 of the lock member 1 from protruding from the folded piece 101c to the side, and to increase the size of the upper rail 101 and thus the lower rail 102 to be wide. It is preventing.

  Further, as described above, when the lock member 1 is rotatably mounted on the upper rail 101, the front end side of the lock member 1 having the lock hole 12 is locked by the lock teeth 102d entering the lock hole 12. The range from the locking position shown in FIG. 6 to the locking release position shown in FIG.

  Next, the unlocking operation member 2 will be described. The unlocking operation member 2 includes a long main body 21 as shown in FIG. As shown in FIGS. 2 and 5, the main body portion 21 is set to have a width smaller than the inner width L2 of the left and right side walls 101a of the upper rail 101, and enters between the left and right side walls 101a. Yes.

  The main body 21 has a pressing portion 22 (see FIGS. 3 and 5) that presses the upper surface of the lock member 1 and a second arm 32 of a leaf spring 3 to be described later at the rear end, which is one end in the longitudinal direction. A second spring insertion hole 26 (shown in FIG. 4) is provided. On the other hand, a gripping member 28 (a part of the rear side is shown in FIG. 3) is connected to the front end which is the other end in the longitudinal direction of the main body 21.

  In addition, a rotation portion 23 and a first spring insertion hole 25 are provided in a portion of the main body portion 21 near the center in the longitudinal direction and slightly closer to the pressing portion 22.

  The rotating portion 23 is a portion that is rotatably held by the upper rail 101. The upper portion and the lower portion of the rotating portion 23 are respectively formed on the upper end and the lower end of the main body portion 21 in a circular arc shape. An arc portion 23a and a lower arc portion 23b are provided.

  The upper arc portion 23a is formed in an arc centered on the arc center O (shown in FIG. 3) and protrudes upward. The lower arc portion 23b is formed in an arc centered on the arc center O and protrudes downward.

  Moreover, the rotation part 23 of this embodiment is provided with the opposing wall 23c which opposes each of the left-right both-sides wall 101a of the upper rail 101, as shown in FIG. Each of these opposing walls 23c includes a left wall 101a of the upper rail 101 and a protrusion 23d that protrudes toward the right wall 101a.

  These protrusions 23d are formed in a substantially hemispherical shape centered on the arc center O. Further, the distance between the tops of the two protrusions 23d is set to be approximately the same as the inner width L2 of the left and right side walls 101a of the upper rail 101, and each of the tops of the two protrusions 23d is rotated when the rotation part 23 is rotated. The left side wall 101a and the right side wall 101a are in contact with the inner surfaces.

  The first spring insertion hole 25 is for passing a first arm 33 and a second arm 34 of the leaf spring 3 described later, and is opened so as to penetrate from the upper surface to the lower surface.

  The leaf spring 3 has, on its front end side (base end side), a supported portion 31 supported by the upper arc portion 23a of the main body portion 21, and rail contact portions 32 provided on both front and rear sides of the supported portion 31. It has.

  The supported portion 31 is formed so as to protrude upward in an arc having substantially the same shape as the upper arc portion 23a. The rail contact portion 32 is formed in a flat shape, and the rail contact portion 32 is pressed against the inner surface of the upper wall 101b of the upper rail 101 when the supported portion 31 is supported by the upper arc portion 23a. .

  Further, a portion of the leaf spring 3 on the rear side of the supported portion 31 is divided into two elongated plate-like arms, ie, a first arm 33 and a second arm 34, and has a bifurcated shape.

  The first arm 33 includes an urging piece 33 a that urges the pressing portion 22 of the main body 21 upward, and a holding piece 33 b as a holding portion that holds the lock member 1.

  The holding piece 33b is provided on the distal end side of the urging piece 33a via the bending step portion 33c, and is disposed at a position below the urging piece 33a by a predetermined distance by the bending step portion 33c.

  The holding piece 33b and the urging piece 33a of the first arm 33 thus configured are passed from the upper side to the lower side through the first spring insertion hole 25 of the main body 21 as shown in FIG. Further, the holding member 33 b passed through the lower side of the main body 21 is passed through the through hole 11 of the locking member 1 from the upper surface side of the locking member 1 so as to hook a part of the lower surface of the locking member 1. 1 is held.

  As shown in FIG. 1, the second arm 34 is formed with a width narrower than the width of the first arm 33, and an upper surface on the rear side of the second spring insertion hole 26 in the main body 21 at the tip. The main body abutting piece 34a abutting on the main body is provided.

  Then, as shown in FIG. 4, the main body abutting piece 34a is passed through the second first spring insertion hole 25 of the main body portion 21 together with the first arm 33 from the upper side to the lower side, and further from the lower side. The second spring insertion hole 26 of the main body 21 is passed through the upper surface of the main body 21 so as to come into contact with the upper surface of the main body 21.

  Further, the main body portion 21 of the unlocking operation member 2 to which the leaf spring 3 and the lock member 1 are attached as described above is arranged inside the upper rail 101 so that the longitudinal direction thereof is along the longitudinal direction of the upper rail 101. And is rotatably held by the upper rail 101 by the holding means.

  The clamping means of this embodiment includes the rotating portion 23 of the unlocking operation member 2 described above, the upper wall 101b of the upper rail 101 holding the upper arc portion 23a of the rotating portion 23 from above, and the rotating It is comprised from the clamping member 27 which clamped the lower circular arc part 23b of the part 23 from the lower side.

  The sandwiching member 27 of this embodiment is composed of a plate-like body as shown in FIGS. The width L1 of the clamping member 27 is slightly larger than the inner width L2 of the left and right side walls 101a of the upper rail 101 as shown in FIG. The sandwiching member 27 includes narrow portions 27a formed at the upper ends of both ends in the width direction so that the width gradually decreases as it goes upward.

  Then, as shown in FIG. 8, the holding member 27 is arranged between the left and right side walls 101 a of the upper rail 101 from the lower side opening in the state in which the main body portion 21 is disposed inside the upper rail 101. It is pushed in between both side walls 101a (in FIG. 8, the main-body part 21 is abbreviate | omitted).

  Thereby, the inner width L2 of the left and right side walls 101a of the upper rail 101 spreads out against the elasticity of the upper rail 101, and the clamping member 27 can be pushed upward (backward).

  When the clamping member 27 matches the locking holes 101f of the left and right side walls 101a of the upper rail 101, the inner width L2 of the left and right side walls 101a is restored to the original state by the elasticity of the upper rail 101 as shown in FIG. Restoration is performed, and the clamping member 27 enters the locking hole 101f.

  In this state, the leaf spring 3 is pushed up by the rotating portion 23 of the unlocking operation member 2, and the supported portion 31 of the leaf spring 3 enters the anti-slip hole 101g of the upper wall 101b of the upper rail 101. The rail contact portion 32 is pressed against the inner surface of the upper wall 101b of the upper rail 101 from the lower side and is fixed to the upper rail 101.

  Further, the upper arc portion 23 a of the rotation portion 23 of the unlocking operation member 2 is pressed against the supported portion 31 of the leaf spring 3, and the upper arc portion 23 a of the rotation portion 23 is interposed between the upper rail 101 and the leaf spring 3. The lower arc portion 23b of the rotating portion 23 is sandwiched from below by the clamping member 27.

  In this state, when an upward or downward force is applied to the grip portion 28 of the unlocking operation member 2, the rotating portion 23 uses the arc center O as the rotation axis and the upper arc portion 23 a is a leaf spring. 3, the lower arc portion 23 b slides on the holding member 27.

  Although not shown, the front side (not shown) of the grip portion 28 connected to the main body 21 is seated by a seated person seated on the seat while the main body 21 is rotatably held by the upper rail 101. In this state, the sheet is disposed at the front lower position so that it can be gripped and operated.

  Further, the lock member 1 held by the holding piece 33b of the first arm 33 is disposed at a locking position where it is locked with the lock teeth 102d as shown in FIG. On the other hand, the pressing portion 22 of the main body portion 21 is disposed at an upper position separated from the lock member 1 by a distance L.

  Next, the operation of the lock / unlock device of this embodiment will be described. To release the lock from the locked state shown in FIGS. 3 and 6, for example, in a state where a seated person is seated, the grip part 28 of the unlocking operation member 2 is gripped and pulled up.

  As a result, the rotating portion 23 of the main body 21 rotates in the clockwise direction of FIG. 3 against the urging force of the leaf spring 3, and the pressing portion 22 rotates (movable) toward the lock member 1 on the lower side. To do. When the rotating portion 23 rotates, the projecting portion 23d rotates while making point contact with the inner surfaces of the left side wall 101a and the right side wall 101a of the upper rail 101. Therefore, the rotation resistance of the main body 21 can be suppressed, and the main body 21 can be smoothly rotated.

  Further, by this rotation, the urging piece 33a of the first arm 33 of the leaf spring 3 is pressed downward, and the holding piece 33b moves downward.

  At that time, the lock member 1 often receives resistance from the lock teeth 102d entering the lock hole 12, and even if the holding piece 33b moves downward, the lock member 1 held by the holding piece 33b is Almost does not move. Therefore, as the pressing portion 22 rotates, the distance L (see FIG. 6) with the lock member 1 becomes shorter, and the pressing portion 22 comes into contact with the lock member 1 as shown in FIGS.

  Further, when the grip portion 28 is pulled up, the pressing portion 22 pushes down the lock member 1. At that time, since the lock member 1 receives the above resistance, the lock release operation member 2 is resisted from rotating. Therefore, it is possible to let the operator know with a sense that the pressing portion 22 has started to push down the lock member 1 and the lock member 1 has started to move to release the lock.

  Further, when the grip portion 28 is pulled up, as shown in FIGS. 11 and 12, the lock member 1 is disengaged from the lock teeth 102d that have entered the lock hole 12, and the lock member 1 and the lock teeth 102d are unlocked. To do. As a result, the upper rail 101 can slide on the lower rail 102, and the seat fixed to the upper rail 101 becomes unlocked and can move in the front-rear direction.

  Therefore, in this state, the operator who is a seated person can move and adjust the seat to a desired position by applying a force in the forward or backward direction to the seat. Further, at that time, since the operator knows with a sense that the lock member 1 has started to move to release the lock, the operator can easily know the timing of applying the force and can adjust the position of the seat smoothly.

  When the sheet is to be locked, the hand is released from the grip portion 28 of the unlocking operation member 2. Accordingly, the holding piece 33b is raised by the urging force of the urging piece 33a of the first arm 33 of the leaf spring 3, and the lock member 1 held by the holding piece 33b is rotated (moved) toward the lock teeth 102d. Then, the lock teeth 102d enter the lock hole 12 and both are locked.

  As a result, the upper rail 101 cannot slide on the lower rail 102, the seat fixed to the upper rail 101 is locked, and cannot be moved in the front-rear direction.

  Further, due to the urging force of the urging piece 33 a of the first arm 33 of the leaf spring 3, the main body portion 21 of the unlocking operation member 2 rotates counterclockwise, and the pressing portion 22 of the unlocking operation member 2 is locked. It is pushed up to an upper position separated from the member 1 by a distance L, and returns to the state shown in FIG.

  Further, the main body portion 21 disposed at the above position is urged clockwise by the urging force of the second arm 34. Accordingly, the main body 21 can be just sandwiched between the first arm 33 and the second arm 34. Therefore, even when the unlocking operation member is subjected to vibration or the like during traveling, for example, the unlocking operation member can be made to not rattle, and the generation of abnormal noise can be prevented.

  In the above-described embodiment, the lock member 1 and the unlocking operation member 2 are configured as separate members. However, the present invention is not limited to this configuration, and both may be formed integrally and can be changed as appropriate.

  Moreover, in the said embodiment, although the leaf | plate spring 3 as an urging | biasing member was comprised from what has the 1st arm 33 and the 2nd arm 34, it can change suitably not only in this form. For example, the leaf spring 3 may include only the first arm 33 and not the second arm 34.

  The biasing member includes a first biasing member that biases the main body portion 21 of the unlocking operation member 2 counterclockwise, and a main biasing member that biases the main body portion 21 of the unlocking operation member 2 clockwise. You may comprise from 1 biasing member and the 2nd biasing member of another body.

  Moreover, in the said embodiment, although the one end side is rotatably supported by the upper rail 101, the lock member 1 is not restricted to this form, It can change suitably.

  For example, a range from a locking position where the lock member 102 enters and locks the lock member 102 into the lock hole 12 in the upper rail 101 to a lock release position where the lock tooth 102d comes out of the lock hole 12 and is released. May be held by the holding piece 33b of the leaf spring 3 so as to be movable in the vertical direction.

  Further, when the one end side of the lock member 1 is rotatably supported by the upper rail 101 as in the above embodiment, the lock teeth 102d may be provided on one inner wall 102c of the lower rail 102, and can be changed as appropriate. it can.

  In the above embodiment, the lower rail 102 is fixed to the floor of the automobile and the upper rail 101 is fixed to the lower end of the automobile seat. However, the lower rail 102 is fixed to the lower end of the automobile seat and the upper rail 101 is attached to the automobile. It may be fixed to the floor and can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 Lock member 2 Lock release operation member 3 Leaf spring (biasing member)
12 Lock hole 22 Press part 23 Rotating part 23a Upper arc part 23b Lower arc part 27 Holding member 31 Supported part 33 First arm 34 Second arm 101 Upper rail 101f Locking hole 101g Non-slip hole 102 Lower rail 102d Lock tooth

Claims (6)

A vehicle that is slidably disposed on a lower rail fixed to a vehicle and is rotatably assembled between left and right side walls of an upper rail that is fixed to a seat, and unlocks the lower rail and the upper rail that are locked to each other. The assembly structure of the unlocking operation member for the seat
A holding means for rotatably holding the unlocking operation member disposed between the left and right side walls;
The clamping means includes a rotating portion having arc portions provided on both upper and lower sides of the unlocking operation member, an upper wall provided on the upper rail and holding the rotating portion from above, and the rotating A clamping member that clamps the portion from below,
The clamping member is inserted into locking holes provided at both end portions of the left and right side walls so as to spread both the left and right side walls from an opening provided below the upper rail. ,
Assembling the unlocking operation member for a vehicle seat, wherein the arc portion is configured to be able to slide the upper wall and the clamping member around the rotation axis of the rotation portion. Construction.   The structure for assembling the unlocking operation member for a vehicle seat according to claim 1, wherein the upper wall is provided with a movement preventing means for preventing the rotation portion from moving in the front-rear direction with respect to the upper wall. . The rotating portion includes opposing walls that oppose the left and right side walls of the upper rail,
The assembly of the unlocking operation member for a vehicle seat according to claim 1 or 2, wherein each of the opposing walls includes a protrusion protruding in the direction of each of the left and right side walls of the upper rail. Construction. A lock / unlock device for a vehicle seat comprising the assembly structure of the unlocking operation member according to any one of claims 1 to 3, and a lock / unlock device main body,
The lock / unlock device main body includes a plurality of lock teeth provided on the lower rail, and a lock member provided on the upper rail and detachably engaged with the lock teeth,
The lock member is configured separately from the unlock operation member, and is disposed so as to be movable in a range from a latch position latched with the lock tooth to a latch unlock position. And
The unlock operation member includes a pressing portion that presses the lock member,
The pressing portion is disposed at a position separated from the locking member at the locking position by a predetermined distance, and when the unlocking operation member is rotated, the locking member is moved from the locking position to the unlocking position. The vehicle seat locking / unlocking device is configured to move to the locking position and press the locking member at the locking position to the locking release position. The vehicle seat lock / unlock device further includes a first urging member that urges the pressing portion of the unlocking operation member from the locking release position to the locking position.
The first urging member includes a holding portion that holds a lock member at a tip thereof so that the lock member can be urged from a lock release position to a lock position. Item 5. The vehicle seat lock / unlock device according to Item 4. The vehicle seat locking / unlocking device further includes a bifurcated leaf spring having a first arm and a second arm,
The first urging member is composed of the first arm,
The holding portion is provided at a tip of the first arm;
The vehicle seat lock according to claim 5, wherein the second arm constitutes a second urging member that urges the pressing portion from the locking position toward the locking release position.・ Unlock device.

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