Seat slide device

Abstract

To simplify a structure of a seat slide device.SOLUTION: A seat slide device 1 comprises a lower rail 2, an upper rail 3, a lock member 4, a lever 5, and an elastic member 6. The lever 5 comprises an operation part 51, and an arm part 52 connected integrally to the operation part 51. The elastic member 6 has a stopper part 64 which is so located as to be spaced downward from the arm part 52 during non-operation of the lever 5, and holds the lever 5 on the upper rail 3. The lever 5 stops in such a manner that the arm part 52 contacts the stopper part 64 during a cancel operation in which the operation part 51 side moves downward.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a seat slide device for adjusting the fore-aft position of a vehicle seat. [Background technology]

[0002] There is known a seat slide device that can adjust the front-rear position of a vehicle seat and lock the seat at a predetermined position. Fig. 10(a) is a cross-sectional view showing an example of a conventional seat slide device. Fig. 10(b) is an exploded perspective view of the conventional seat slide device. Note that some parts are omitted in Fig. 10(b).

[0003] A conventional seat slide device 100 mainly includes a lower rail 110, an upper rail 120, a locking device 130, and a lever mechanism 140. A pair of seat slide devices 100 (one on the inner side and one on the outer side) are provided for one seat (however, a lever 141, which will be described later, is a component common to the pair of left and right seat slide devices 100). The lower rail 110 and the upper rail 120 cannot move relative to each other in the front-rear direction when locked by the locking device 130, and can move relative to each other in the front-rear direction when unlocked. The locking device 130 is unlocked by the lever mechanism 140.

[0004] The lever mechanism 140 includes a lever 141, a lever bracket 142, and a spring bracket 143. A part of the lever 141 is disposed on the lever bracket 142. A pressing portion 142a that activates the locking device 130 is provided on the rear side of the lever bracket 142. The lever bracket 142 has a protruding shaft portion 142b. The spring bracket 143 is made of a leaf spring and has a through hole 143a. The shaft portion 142b of the lever bracket 142 is inserted into the through hole 143a of the spring bracket, and is journaled in a through hole 120a provided in the side wall of the upper rail 120.

[0005] When a passenger lifts lever 141, lever bracket 142 rotates about shaft 142b, and the pressing portion 142a side lowers. Pressing portion 142a exerts a force on locking device 130, causing locking device 130 to be unlocked.

[0006] Incidentally, as described in Patent Document 1, in the event of a vehicle collision, for example, a load that tries to lift the rear end of the upper rail on the inner side may act on the upper rail. If the rear end of the upper rail is lifted, there is a risk that the locking device will be released.

[0007] Therefore, in order to prevent the lock from being unintentionally released in the event of a vehicle collision, etc., conventional seat slide devices are configured so that when one of the pair of left and right rails is lifted, a lever operates to essentially counteract (cancel) the lifting phenomenon (this lever operation is referred to as the "cancellation operation").

[0008] In the seat slide device shown in FIG. 10(a), the front part of the lever 141 and the front part of the lever bracket 142 are disposed with a gap between them and the bottom wall of the lower rail 110. Therefore, the lever 141 and the lever bracket 142 have a room to rotate so that their front parts move downward. Therefore, even if the rear end of the upper rail 120 and the locking device 130 are lifted up during a vehicle collision or the like and the locking device 130 comes into contact with the pressing part 142a of the lever bracket 142, the pressing part 142a of the lever bracket 142 moves upward, and the lever bracket 142 and the lever 141 rotate so that the front parts of the lever bracket 142 and the lever 141 move downward, thereby preventing the locking device 130 from releasing the lock. In the seat slide device shown in FIG. 10(a), the downward movement of the lever 141 is restricted by the stopper part 142c of the lever bracket 142 during the cancel operation. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2015-116998 A Summary of the Invention [Problem to be solved by the invention]

[0010] In conventional seat slide devices, the lever mechanism is made up of many parts, resulting in a complex structure.

[0011] In view of the above problems, an object of the present invention is to simplify the structure of a seat slide device. [Means for solving the problem]

[0012] The present invention has the following features. (Item 1) A lower rail fixed to the floor of the vehicle; an upper rail fixed to the seat and slidable relative to the lower rail; a locking member that releasably locks the relative movement between the lower rail and the upper rail; a lever having an operation part and an arm part that is integrally connected to the operation part and disposed on the locking member, the arm part pressing the locking member to release the lock when the operation part is pulled up to perform an unlocking operation; before an elastic member that holds the lever on the upper rail; Equipped with The elastic member includes two arm portions, two first locking portions, two second locking portions, a stopper portion, and a third locking portion, The third locking portion is locked to the lever, the stopper portion is disposed below the arm portion and at a position spaced from the arm portion when the lever is not operated, When the lever is subjected to a canceling operation in which the operation unit side moves downward, the arm portion comes into contact with the stopper portion, thereby stopping the lever. Seat slide device.

[0013] (Item 2) The upper rail has a pair of opposing side walls, each of which is provided with a locking portion, The elastic member The first locking portion and the second locking portion , respectively engaged with the engaged portion , the elastic member The upper rail is supported at both ends. 2. The seat slide device according to item 1. Effect of the Invention

[0014] In the seat slide device of the present invention, the locking member can be directly moved to the unlocked position by a lever in which an operating portion and an arm portion are integrally connected, and a stopper portion that limits the amount of cancellation movement of the lever is provided on the elastic member, so that the lever bracket used in conventional seat slide devices is not necessary, and the number of parts can be reduced. [Brief description of the drawings]

[0015] [Figure 1] FIG. 2 is a schematic side view of a seat and a seat slide device. [Diagram 2] FIG. [Diagram 3] 3 is a cross-sectional view taken along line III-III in FIG. 2. [Figure 4] FIG. 2 is a perspective view of the seat slide device after assembly. [Diagram 5] FIG. 2A is a perspective view of a locking member, and FIG. [Figure 6] FIG. [Figure 7] 3A is a perspective view of an upper rail to which an elastic member is attached, and FIG. 3B is an enlarged bottom view of the elastic member in the seat slide device. [Figure 8] 1A is a cross-sectional view of the lever when it is not being operated, and FIG. 1B is a cross-sectional view of the lever when it is being operated to release the lock. [Figure 9] FIG. 11 is a cross-sectional view of the lever during a cancel operation. [Figure 10]FIG. 1A is a cross-sectional view showing an example of a conventional seat slide device, and FIG. 1B is a perspective view showing some components of the conventional seat slide device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The seat slide device of the present invention will be described with reference to the drawings. The embodiment described below shows a preferred specific example of the present invention. The present invention is not limited to the following embodiment, and can be modified as appropriate without departing from the spirit of the present invention. For clarity, some components in the drawings and hatching in cross-sectional views may be omitted.

[0017] <1 Overall structure of the seat slide device> 1 is a schematic side view of a vehicle seat S and a seat sliding device 1. In the following, the "vehicle up-down direction", "vehicle front-rear direction", and "vehicle left-right direction (vehicle width direction)" will be simply referred to as the "up-down direction", the "front-rear direction", and the "left-right direction", respectively.

[0018] The seat slide device 1 includes a lower rail 2, an upper rail 3, a locking member 4, a lever 5, and an elastic member 6 (see FIG. 2). The lower rail 2, the upper rail 3, the locking member 4, and the elastic member 6 are provided in pair on the left and right sides (i.e., on the inner side and the outer side) for one seat S.

[0019] The lower rail 2 is fixed to the vehicle floor via a bracket B. The upper rail 3 is fixed to the seat S and assembled to the lower rail 2. The lower rail 2 and the upper rail 3 are releasably locked by a locking member 4. When the locking member 4 is in a locked position, the lower rail 2 and the upper rail 3 cannot move relative to each other in the front-rear direction. When the locking member 4 is in an unlocked position, the lower rail 2 and the upper rail 3 can move relative to each other in the front-rear direction. The locked and unlocked states of the locking member 4 are switched by a lever 5. Each component will be described in detail below.

[0020] <1-1 Lower rail and upper rail> The lower rail 2 will be described mainly with reference to Fig. 2. Fig. 2 is an exploded perspective view of the seat slide device 1.

[0021] The lower rail 2 is made of a long member extending in the front-rear direction and includes a bottom wall 21, a side wall 22, an upper wall 23, and a flange portion 24. There are a pair of each of the side wall 22, the upper wall 23, and the flange portion 24. The lower rail 2 is made of, for example, metal, and is integrally formed by pressing.

[0022] The bottom wall 21 is generally flat and extends in the front-rear direction. The side walls 22 extend upward from both left and right ends of the bottom wall 21 at a generally right angle to the bottom wall 21. The upper wall 23 extends from the upper end of the side wall 22 toward the other side wall 22. The flange portion 24 extends downward from the end of the upper wall 23 generally parallel to the side wall 22.

[0023] A plurality of notches 24a are formed at intervals in the front-rear direction in the flange portion 24. By providing the plurality of notches 24a, a plurality of locking teeth 24b are formed at the lower end of the flange portion 24. When the locking member 4 is placed in the locked position, the locking teeth 24b are placed in through holes 41a (see FIG. 5(a)) of the locking member 4, which will be described later.

[0024] Next, the upper rail 3 will be described mainly with reference to Fig. 2 to Fig. 4. Fig. 3 is a cross-sectional view taken along line III-III in Fig. 2. Fig. 4 is a perspective view of the seat slide device 1 after assembly. Note that in Fig. 4, some components are partially omitted in order to make the internal structure easier to see.

[0025] 2, the upper rail 3 is made of a long member extending in the front-rear direction and including a top wall 31, a side wall 32, a bottom wall 33, and a flange portion 34. The upper rail 3 is made of, for example, metal, and is integrally formed by pressing.

[0026] The side walls 32, bottom wall 33, and flange portions 34 are provided in pairs. The top wall 31 is generally flat and extends in the front-rear direction. The side walls 32 extend downward from both left and right ends of the top wall 31 at a generally right angle to the top wall 31. The bottom wall 33 extends obliquely upward from the side wall 32 so as to move away from the side wall 32. The flange portions 34 extend obliquely upward from the bottom wall 33 so as to approach the side wall 32.

[0027] As shown in Figures 2 and 3, a through hole 3a is provided in the upper wall 31. As shown in Figure 4, a fixing member 7 for fixing the locking member 4 to the upper rail 3 is inserted into the through hole 31a. In addition, a protruding portion 31b that protrudes downward is provided behind the through hole 31a. The protruding portion 31b is formed, for example, by cutting and raising a part of the upper wall 31. When the lever 5 is not operated, the arm portion 52 of the lever 5 is in contact with the protruding portion 31b (see Figure 8(a)).

[0028] As shown in FIG. 2 and FIG. 3, a plurality of notches 32a are formed in each side wall 32 at the same intervals as the notches 24a of the lower rail 2 in the front-rear direction. By providing the plurality of notches 32a, a plurality of locking teeth 32b are formed in each side wall 32. When the locking member 4 is arranged in the lock position, the locking teeth 32b are arranged in a through hole 41a (see FIG. 5(a)) of the locking member 4 described later. Each side wall 32 is provided with a notch 32c extending in the vertical direction into which a convex portion 44b (see FIG. 5(a)) of the locking member 4 described later is press-fitted. Also, as shown in FIG. 3, each side wall 32 is provided with a first locked portion 32d and a second locked portion 32e for attaching the elastic member 6. The first locked portion 32d protrudes toward the opposing side wall 32 and extends forward. The first locked portion 32d is, for example, a protrusion formed by cutting and raising a part of the side wall 32. As will be described later, a first locking portion 62 of the elastic member 6 is locked to the first locked portion 32d (see FIG. 7(a)). The second locked portion 32e is provided on the lower part of the side wall 32 and has a wall portion extending upward. The second locked portion 32e is formed, for example, by cutting out a part of the side wall 32. As will be described later, a second locking portion 63 of the elastic member 6 is locked to the second locked portion 32e (see FIG. 7(a)).

[0029] The lower rail 2 and the upper rail 3 are assembled such that the side wall 32 of the upper rail 3 is disposed between a pair of flange portions 24 of the lower rail 2, and the flange portions 34 of the upper rail 3 are disposed between the side wall 22 and the flange portions 24 of the lower rail 2.

[0030] 2 is disposed between the corner portion between the bottom wall 21 and the side wall 22 of the lower rail 2 and the bottom wall 33 of the upper rail 3. In addition, rolling means 8 is disposed between the upper end of the side wall 22 of the lower rail 2 and the upper end of the flange portion 34 of the upper rail 3. This rolling means 8 allows the lower rail 2 and the upper rail 3 to slide smoothly in the front-rear direction.

[0031] <1-2 Locking parts> The locking member 4 will be described mainly with reference to Figures 4 and 5. Figure 5(a) is a perspective view of the locking member 4, and Figure 5(b) is a side view of the locking member 4.

[0032] The locking member 4 is manufactured by, for example, pressing a single elastically deformable plate material such as spring steel. As shown in Fig. 5, the locking member 4 includes a lock piece 41, a pressed portion 42, two extending portions 43, two rising portions 44, and an attachment portion 45.

[0033] As shown in Fig. 5(a), the lock piece 41 has a plurality of through holes 41a spaced apart in the front-rear direction. Portions of the lock piece 41 adjacent to the plurality of through holes 41a in the front-rear direction function as lock teeth 41b. When the lock member 4 is disposed in the locked position, the lock teeth 24b of the lower rail 2 and the lock teeth 32b of the upper rail 3 are inserted into the through holes 41a, and the lock teeth 41b of the lock member 4 are inserted into the notches 24a of the lower rail 2 and the notches 32a of the upper rail 3. In this way, the lower rail 2 and the upper rail 3 are locked so that they cannot slide forward or backward.

[0034] The pressed portion 42 is provided in front of the lock piece 41. The rear end of the lever 5 is disposed on the pressed portion 42 (see Figs. 4 and 8(a)). When the operating portion 51 of the lever 5 is lifted (i.e., when an unlocking operation is performed), the pressed portion 42 is pressed downward by the lever 5 (see Fig. 8(b)).

[0035] The two extending portions 43 are spaced apart in the left-right direction and extend in the front-rear direction. The rising portion 44 is a portion rising upward from the front end of each of the two extending portions 43. As shown in FIG. 5(b), the rising portion 44 rises upward while inclining slightly backward. As shown in FIG. 5(a), the two rising portions 44 are connected at their upper portions. As a result, an opening 44a with an upper closed portion is formed between the two rising portions 44. As will be described later, an arm portion 52 of the lever 5 is inserted into the opening 44a (see FIG. 4).

[0036] As shown in FIG. 5(a), each rising portion 44 has a convex portion 44b that protrudes outward. As described above, since the rising portion 44 rises while inclining backward, the convex portion 44b is also inclined backward. The width of the convex portion 44b in the front-rear direction (i.e., the distance between the upper rear end and the lower front end of the convex portion 44b) is larger than the width of the notch 32c of the upper rail 3. Therefore, when the convex portion 44b is inserted into the notch 32c, the convex portion 44b is pressed into the notch 32c. When the convex portion 44b is pressed into the notch 32c, the upper rear end of the convex portion 44b contacts the inner surface on the rear side of the notch 32c, and the lower front end of the convex portion 44b contacts the inner surface on the front side of the notch 32c. Then, the convex portion 44b elastically deforms when it contacts the inner surfaces on the front and rear sides of the notch 32c, generating a holding load in the front-rear direction. The protrusion 44b is fixed in the notch 32c by this retaining load, so that the lock member 4 does not rattle back and forth even if a load is input.

[0037] The mounting portion 45 is a portion for fixing the locking member 4 to the upper rail 3 by the fixing member 7. As shown in FIG. 5(a), the mounting portion 45 has a through hole 45a for inserting the fixing member 7. The fixing member 7 is inserted into the through hole 31a of the upper rail 3 and the through hole 45a of the locking member 4. Then, the lower part of the fixing member 7 is crimped to the mounting portion 45, and the upper part of the fixing member 7 is crimped to the upper rail 3 (see FIGS. 4 and 8(a)). In this way, the locking member 4 is fixed to the upper rail 3.

[0038] <1-3 Lever and elastic member> The lever 5 and the elastic member 6 will be described mainly with reference to Figs. 2, 4, 6, 7 and 8(a). Fig. 6 is a perspective view of the elastic member 6. Fig. 7(a) is a perspective view of the upper rail 3 to which the elastic member 6 is attached, and Fig. 7(b) is a bottom view of the elastic member 6 in the seat slide device 1. In Fig. 7(a), components other than the upper rail 3 and the elastic member 6 are omitted in order to clarify the attachment state of the elastic member 6. In Fig. 7(b), the lower rail 2 is omitted. Fig. 8(a) is a cross-sectional view of the seat slide device 1 when the lever 5 is not operated.

[0039] As shown in Fig. 2, the lever 5 includes an operating portion 51 and a pair of left and right arm portions 52 (the left arm portion 52 is omitted in Fig. 2). The pair of arm portions 52 are integrally connected via the operating portion 51. The lever 5 is integrally formed, for example, by pressing a single pipe. A notch 52a is provided on the lower surface of the arm portion 52. An elastic member 6 for biasing the lever 5 upward is attached to the notch 52a.

[0040] The elastic member 6 is formed by, for example, bending a single linear spring. As shown in FIG. 6, the elastic member 6 includes two arm portions 61, two first locking portions 62, two second locking portions 63, a stopper portion 64, and a third locking portion 65. The two arm portions 61 are separated from each other on the left and right sides and extend in the front-rear direction. Each first locking portion 62 is a portion extending downward from the front end of each arm portion 61. As shown in FIG. 7(a), each first locking portion 62 is locked by being hooked onto the first locked portion 32d of each side wall 32. Each second locking portion 63 is a portion protruding toward each side wall 32. Each second locking portion 63 is locked by being hooked onto the second locked portion 32e of each side wall 32. When the second locking portion 63 is locked to the second locked portion 32e of the side wall 32, the elastic member 6 is held by the side wall 32 in a double-supported state. The stopper portion 64 extends in the left-right direction and connects the two second locking portions 63. As shown in FIG. 8(a), the stopper portion 64 is disposed below the arm portion 52 of the lever 5 with a gap therebetween when the lever 5 is not operated. As will be described later, when the operating portion 51 side of the lever 5 moves downward due to a cancel operation, the stopper portion 64 comes into contact with the arm portion 52 to restrict the downward movement of the lever 5. The third locking portion 65 extends in the left-right direction and connects the two arm portions 61, and is locked to the notch 52a of the lever 5.

[0041] As shown in FIG. 4, the arm portion 52 of the lever 5 is inserted between the two arm portions 61 of the elastic member 6 and into the opening 44a of the locking member 4, and the rear end of the arm portion 52 is positioned on the pressed portion 42 of the locking member 4.

[0042] The elastic member 6 engaged with the lever 5 bears the weight (downward load) of the lever 5, but the upward biasing force of the elastic member 6 is greater than the downward load. In other words, the lever 5 is biased upward by the elastic member 6. Therefore, as shown in FIG. 8(a), when the lever 5 is not operated, the front part of the lever 5 is disposed at a distance from the bottom wall 21 of the lower rail 2. As shown in FIG. 8(a), when the lever 5 is not operated, the arm portion 52 is in contact with the protruding portion 31b of the upper rail 3. When the lever 5 is not operated, the arm portion 52 is disposed at a distance from the stopper portion 64. When the lever 5 is not operated, the arm portion 52 is in contact with the upper edge of the opening 44a or is disposed with a small gap between the arm portion 52 and the opening 44a. As will be described later, when the operating portion 51 is lifted (i.e., when the unlocking operation is performed), the lever 5 rotates about a contact point P1 between the arm portion 52 and the upper edge of the opening 44a.

[0043] <2 Unlocking action> The unlocking operation of the seat slide device 1 will be described mainly with reference to Fig. 8. Fig. 8(b) is a cross-sectional view of the seat slide device 1 when the lever 5 is operated to unlock.

[0044] When the occupant lifts the operating portion 51 of the lever 5 from the state shown in Fig. 8(a), as shown in Fig. 8(b), the lever 5 rotates about the contact point P1 between the arm portion 52 and the upper edge of the opening 44a of the locking member 4. In other words, the lever 5 rotates so that the portion in front of the contact point P1 moves upward, and the portion behind the contact point P1 moves downward.

[0045] As the lever 5 rotates, the rear end of the arm portion 52 presses the pressed portion 42 of the locking member 4 downward. This causes mainly the extension portion 43 to bend downward due to elastic deformation, and as a result, the lock piece 41 moves downward. Then, the lock tooth 41b leaves the notch 24a of the lower rail 2 and the notch 32a of the upper rail 3. In this way, the lock between the lower rail 2 and the upper rail 3 is released, and the lower rail 2 and the upper rail 3 become slidable relative to each other in the front-rear direction.

[0046] When the force applied to the operating portion 51 of the lever 5 is released, the operating portion 51 of the lever 5 moves down due to the weight of the lever 5 itself, the restoring force of the elastic member 6, and the restoring force of the locking member 4, and the rear end of the arm portion 52 moves up. As a result, the locking member 4 returns to its original position (i.e., the state in FIG. 8(a)) due to its elastic force, and the locking tooth 41b is inserted into the notch 24a and the notch 32a, and the locking tooth 24b and the locking tooth 32b are inserted into the through hole 41a. In this way, the lower rail 2 and the upper rail 3 are locked so that they cannot slide in the front-rear direction.

[0047] <3 Lever cancel operation> The cancel operation of the lever 5 will be described mainly with reference to Figures 8(a) and 9. Figure 9 is a cross-sectional view of the lever 5 during the cancel operation.

[0048] As shown in FIG. 8(a), when the lever 5 is not operated, there is a gap between the arm portion 52 of the lever 5 and the bottom wall 21 of the lower rail 2, and between the arm portion 52 of the lever 5 and the stopper portion 64. Therefore, the lever 5 has a room to perform a cancel operation so that its front portion moves downward in the event of a vehicle collision or the like. In other words, even if, for example, the rear end of the inner side upper rail 3 and the rear end of the locking member 4 are lifted in the event of a vehicle collision or the like, and the pressed portion 42 of the locking member 4 comes into contact with the rear end of the lever 5, as shown in FIG. 9, the lever 5 rotates around the contact point P2 between the arm portion 52 and the protruding portion 31b so that the part of the lever 5 rearward of the contact point P2 moves upward and the part of the lever 5 forward of the contact point P2 moves downward. Then, the lever 5 comes into contact with the stopper portion 64 and stops. This cancel operation of the lever 5 can prevent the locking member 4 from being unlocked, and the locked state between the lower rail 2 and the upper rail 3 can be maintained.

[0049] <4 Features> In the seat slide device 1 of the present invention, the elastic member 6 is provided with a stopper portion 64 that regulates the cancellation movement amount of the lever 5, so that a lever bracket as in the conventional art is not required, and the seat slide device 1 can be constructed with a reduced number of parts.

[0050] Furthermore, the two second locking portions 63 of the elastic member 6 are locked to the second locked portions 32e of the side walls 32 of the upper rail 3, respectively, so that the elastic member 6 is held in a double-supported state on the upper rail 3. As a result, even if the lever 5 is pushed down and a load is applied to the stopper portion 64 due to, for example, an occupant's foot hitting the lever 5, the holding strength of the stopper portion 64 can be maintained and deflection of the stopper portion 64 can be suppressed.

[0051] In the seat slide device 1 of the present invention, the locking member 4 can be directly moved to the unlocked position by the lever 5 in which the operating portion 51 and the arm portion 52 are integrally connected. Therefore, the seat slide device 1 can be configured with a smaller number of parts compared to a conventional structure in which the operation of the lever is transmitted to the locking device by a lever bracket.

[0052] Furthermore, the lever 5 rotates around the upper edge (contact point P1) of the opening 44a of the locking member 4 to unlock the locking member 4. In other words, the rotation center of the lever 5 is provided in the locking member 4. Therefore, when adjusting the layout, by moving only the locking member 4 in the front-rear direction, the rotation center of the lever 5 is also changed at the same time, improving layout flexibility.

[0053] <5. Variations> The above embodiment describes a preferred embodiment of the seat slide device 1. The present invention is not limited to the above embodiment, and can be modified as appropriate without departing from the spirit of the present invention. Modifications of the seat slide device 1 will be described below. The modifications described below can be combined as appropriate.

[0054] (1) The elastic member 6 may be a spring having a shape other than a wire.

[0055] (2) The arm portion 61 of the elastic member 6 may be formed, for example, into a coil shape to apply a biasing force to the lever 5. [Explanation of symbols]

[0056] 1 Seat slide device 2 Lower rail 3 Upper Rail 32 Side wall 32e Second locked part (locked part) 4 Locking member 5 Lever 51 Operation section 52 Arm section 6 Elastic member 63 Second locking portion (locking portion) 64 Stopper part S Seat

Claims

1. A lower rail fixed to the floor of the vehicle; an upper rail fixed to the seat and slidable relative to the lower rail; a locking member that releasably locks the relative movement between the lower rail and the upper rail; a lever having an operation part and an arm part that is integrally connected to the operation part and disposed on the locking member, the arm part pressing the locking member to release the lock when the operation part is pulled up to perform an unlocking operation; an elastic member that holds the lever on the upper rail; Equipped with The elastic member includes two arm portions, two first locking portions, two second locking portions, a stopper portion, and a third locking portion, The third locking portion is locked to the lever, the stopper portion is disposed below the arm portion of the lever and at a position spaced apart from the arm portion of the lever when the lever is not being operated, When the lever undergoes a cancel operation in which the operation unit side moves downward, the arm portion of the lever comes into contact with the stopper portion, thereby stopping the lever. Seat slide device.

2. The upper rail has a pair of opposing side walls, each of which is provided with a locking portion, the first engaging portion and the second engaging portion of the elastic member are engaged with the engaged portion, and the elastic member is held by the upper rail in a double-supported state. The seat slide device according to claim 1 .

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